BIG DAISHOWA BIG-PLUS Dual Contact Tooling

Get the tooling your machine was designed for. BIG DAISHOWA is the originator of the BIG-PLUS tooling system designed to maximize machining performance. Experience the impact of genuine expertise and innovation in your manufacturing processes.

BIG-PLUS DUAL CONTACT TOOLING The Tooling Your Machine Was Designed For R SPINDLE SYSTEM DUAL CONTACT

THE BIG-PLUS SPINDLE SYSTEM IS AN ORIGINAL DEVELOPMENT OF BIG DAISHOWA SEIKI CO., LTD.

BIG-PLUS — The World’s Most Rigid Dual Contact Spindle System Adopted by more than 100 machine tool builders for over the past 20 years, thousands of machines and tens of thousands of BIG-PLUS tool holders are in operation today. Due to the popularity of BIG-PLUS, many tooling companies, without a proper license agreement, gauges, or manufacturing specifications & tolerances are offering dual contact tooling. The achievement of dual contact is only possible by strict control of flange face location to taper gauge line.

BIG-PLUS

Convencional

AJUSTE

Simultaneous Taper & Flange Fit BIG-PLUS surpasses all other spindle concepts while offering interchangeability with existing machines and tool holders. • Improved surface finish & dimensional accuracy • Extended tool life • Prevention of fretting corrosion caused by heavy cutting • Improvement of ATC repeatability • Elimination of Z-axial movement at high speeds • Improved roundness of boring operations

ESPACIO

Basic Concept The BIG-PLUS Spindle System is based on the most current available standards in ASME B5.50, JIS B6339 and DIN 69871. A conventional steep taper tool holder is supported on a reference diameter called the gauge line. On the contrary, a BIG-PLUS tool holder is supported on the flange face, which brings remarkable improvement to rigidity.

Distance Between the Taper Gauge Line and Tool Flange is the Critical Dimension for BIG-PLUS

Taper Gauge Line

Flange Face

BIG-PLUS Dual Contact Works on a Very Small Amount of Spindle Elastic Deformation Taper contact before clamping is very important and therefore the dimension and tolerance for the flange face is extremely critical to achieving dual contact. There are 3 possible outcomes depending on the actual tool holder specification. The Current Market Contains Many Suppliers of Dual Contact Tooling Who Are NOT Licensed for BIG-PLUS Without the license, they have neither the exclusive gauges nor dimensions and tolerances for the critical relationship of taper to flange. We acquired many of these tools from all regions of the world and inspected them with our gauges.

THE BIG-PLUS SPINDLE SYSTEM IS AN ORIGINAL DEVELOPMENT OF BIG DAISHOWA SEIKI CO., LTD.

Condition #1 Proper Fit

Condition #2 Flange Contact Only Limited or No Taper Contact • Poor runout accuracy • Severe chatter and vibration • Spindle damage Condition #3 Taper Contact Only No Flange Contact • Features of BIG-PLUS are voided • Works same as taper-only contact tooling

• Dual contact of taper and flange face after clamping

STANDARD

Elastic Deformation

Gap

Inspection Results of Sample Non-Licensed Dual Contact Tooling 25 Samples — 40 & 50 Taper “Dual Contact” Measured According to the BIG-PLUS Standard

40% — Flange contact — only, not to specification

r 16% — Allowable tolerance a

44% — Taper contact p only, not to specification

Condition #2 Flange Contact Only Limited or no taper contact

Condition #1 Proper Fit Taper & Flange Contact Allowable tolerance range for BIG-PLUS

Condition #3 Taper Contact Only No flange contact

MEGA MICRO CHUCK OVERVIEW

CLAMPING RANGE: Ø.018"-.317" (Ø.45-8.05mm) Extremely slim design of body and nut provides superior balance and concentricity and is ideal for reaching into confined areas.

MAX 50,000 RPM

End Milling Drilling

SPINDLE SYSTEM DUAL CONTACT

EXTREMELY SLIM DESIGN NUT Ø.394"/.472"/.551"/.709" 3S/4S/6S/8S Type Slim design avoids interference. Ideal for small moldmaking, combining speed and high precision capability.

HIGH CONCENTRICITY MEGA MICRO COLLET 100% concentricity inspection.

HIGH PRECISION

Guaranteed runout within .00004" at the nose. Available for higher precision in steps of Ø.004" (Ø.1mm)

STRICT GAGE CONTROL

AT COLLET NOSE 3μm at end of test bar 1 μm

4d .00004" .00012"

Sealed Nut for Through- Tool Coolant (available for 6S & 8S only)

Ø.394" FULL SCALE (3S TYPE)

All BIG Collets are AA Grade and inspected twice for accuracy

A VARIETY OF INTERFACES FOR HIGH-SPEED MACHINING

20,000 rpm/1.5MPa

STRAIGHT SHANK TYPE

STRAIGHT TYPE

TAPER TYPE

MEGA MICRO COOLANT NUT (PAT. PENDING) For MEGA MICRO CHUCK 6S Provides a more efficient coolant supply for micro cutting tools. Ideal design for high-speed micro machining up to Ø6mm.

Up to 35% higher tool lifetime compared to standard nut

For Increased Versatility

Where Access is Restricted

For Increased Rigidity

Micro Collet

MEGA MICRO Seal Nut

THROUGH TOOLS

NBCS

MEGA Wrench MEGA Torque Wrench

MEGA MICRO Coolant Nut

JET THROUGH

COLLET CHUCKS

MEGA MICRO CHUCK—TYPE T CLAMPING RANGE: Ø.018"-.317" For Micro Drill & End Mill Applications

MAX 35,000 RPM

COOLANT

THROUGH

L 1

H 2

H 1

5˚

BCV40

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Max RPM

Weight (lbs.)

Ød

ØD D 1

L 1

H 1

H 2

Collet

Nut

Wrench

BCV40-MEGA3S-2.5T BCV40-MEGA3S-4T BCV40-MEGA4S-2.5T BCV40-MEGA4S-4T BCV40-MEGA6S-2.5T BCV40-MEGA6S-4T BCV40-MEGA8S-3.5T BCV40-MEGA8S-6T

.47 .76 .54 .78 .60 .84 .91

2.50 1.01 4.00 2.38 2.50 1.01 4.00 2.38 2.50 1.01 4.00 2.38 3.50 1.93

35,000 25,000 35,000 25,000 35,000 25,000 30,000 15,000

2.2 2.4 2.2 2.4 2.2 2.4 2.4 3.1

.018-.128

.394

.87

1.50 M4 P0.7 NBC3S-

MGN3S MGR10

.018-.159

.472

1.04 1.85 M5 P0.8 NBC4S-

MGN4S MGR12

.018-.238

.551

1.12 1.93 M7 P0.75 NBC6S-

MGN6S MGR14

.116-.317

.709

1.22 1.99 M9 P0.75 NBC8S-

MGN8S MGR18

1.35 6.00 4.50

• MEGA MICRO NUT is included; collet and wrench must be ordered separately • Weight includes nut but not collet • Please note that the practical spindle speed may be considerably influenced by the machine rigidity and tool balance, when using, slowly ramp up to the appropriate speed starting from slow speeds

ACCESSORIES

COLLET

MEGA NUT

SEAL NUT

MEGA WRENCH

MEGA NEW BABY CHUCK OVERVIEW

CLAMPING RANGE: Ø.010"-1.000" (Ø.25-25.4mm) High-speed design, offered in six different collet series sizes. Utilizes ultra precise NEW BABY COLLETS which guarantee a runout at the collet nose of less than .00004".

MAX 50,000 RPM

Reaming

End Milling Drilling

SPINDLE SYSTEM DUAL CONTACT

Tool Extension Less Rigid !

Maximum Performance!

CAUTION!

Tool Extension Less Rigid !

WIDE RANGE AVAILABLE AS STANDARD Ideal length and diameter of the holder is the key to precision machining. If selection is limited, an increased tool extension reduces performance.

CAUTION!

IDEAL CONDITION!

HIGH PRECISION COLLET, CLOSE TO SUBMICRON NEW BABY COLLET

TWO WAY COOLANT SEALED COLLET NUT MEGA PERFECT SEAL • Standard NBC collet is used • High dust resistance

HIGH PRECISION

THROUGH TOOLS

JET THROUGH

The NBC collet is 100% inspected to guarantee accuracy. Material, production, heat treatment... everything is selected for precision.

STRICT GAGE CONTROL

AT COLLET NOSE 3μm at end of test bar 1 μm

Tools with Holes

Tools without Holes

.00004"

.00012"

All BIG Collets are AA Grade and inspected twice for accuracy

NEW BABY Collet

MEGA NEW BABY Nut

NBC (Standard)

Flat Type

THROUGH TOOLS

MEGA PERFECT Seal

MPS

NBC-E (For Endmill)

Adjusting Screw

JET THROUGH

Without PS Ring

MEGA NEW BABY Nut

THROUGH TOOLS

MEGA Wrench MEGA Torque Wrench

FONBC Coolant Collet

COLLET CHUCKS

MEGA NEW BABY CHUCK CLAMPING RANGE: Ø.010"-1.000" For Drills, Reamers, Taps & Finishing End Mills

COOLANT

MAX 35,000 RPM

THROUGH

L 1

BCV40

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Max RPM

Weight (lbs.)

Ød

ØD

L 1

Collet

Nut

Wrench

BCV40-MEGA6N-2.5 BCV40-MEGA6N-4 BCV40-MEGA6N-5 BCV40-MEGA6N-6 BCV40-MEGA8N-2.5 BCV40-MEGA8N-4 BCV40-MEGA8N-5 BCV40-MEGA8N-6 BCV40-MEGA10N-2.5 BCV40-MEGA10N-4 BCV40-MEGA10N-5 BCV40-MEGA10N-6 BCV40-MEGA13N-2.5 BCV40-MEGA13N-4 BCV40-MEGA13N-5 BCV40-MEGA13N-6 BCV40-MEGA16N-2.5 BCV40-MEGA16N-4 BCV40-MEGA16N-5 BCV40-MEGA16N-6 BCV40-MEGA20N-2.5 BCV40-MEGA20N-4 BCV40-MEGA20N-5 BCV40-MEGA20N-6 BCV40-MEGA25N-3 BCV40-MEGA25N-4

2.50 4.00 5.00 6.00 2.50 4.00 5.00 6.00 2.50 4.00 5.00 6.00 2.50 4.00 5.00 6.00 2.50 4.00 5.00 6.00 2.50 4.00 5.00 6.00 3.00 4.00

1.04 2.22 3.22 4.22 1.04 2.30 3.30 4.30 1.05 2.38 3.38 4.38 1.17 2.46 3.46 4.46 1.18 2.62 3.62 4.62 1.75 3.25 4.25 5.25 2.25 3.25

35,000 30,000 20,000 15,000 35,000 30,000 20,000 15,000 35,000 25,000 20,000 15,000 30,000 25,000 20,000 15,000 30,000 20,000 15,000 12,000 30,000 20,000 15,000 12,000 25,000 20,000

2.3 2.5 2.7 2.8 2.4 2.7 2.9 3.1 2.5 3.0 3.2 3.5 2.7 3.2 3.5 4.0 2.9 3.6 4.2 4.7 3.0 4.0 4.6 5.3 3.2 4.1

.010-.236

.787

.91-1.69

MGN6

MGR20

NBC6-

.020-.315

.984

1.02-1.77

MGN8

MGR25

NBC8-

.059-.394

1.181

1.50-1.89 NBC10-

MGN10

MGR30

.098-.512

1.387

1.73-2.48 NBC13-

MGN13

MGR35

1.89-2.48

.098-.630

1.654

MGN16

MGR42

NBC16-

1.89-2.68

2.01

.098-.787

1.811

MGN20

MGR46

NBC20-

2.01-2.68

.610-1.000

2.362

2.52-2.91 NBC25-

MGN25

MGR60L

• MEGA NEW BABY NUT is included; collet, wrench and adjusting screw must be ordered separately • Weight includes nut but not collet • Center through coolant supply is available • Please note that the practical spindle speed may be considerably influenced by the machine rigidity and tool balance, when using, slowly ramp up to the appropriate speed starting from slow speeds • “H” indicates the adjustment length with an adjusting screw

ACCESSORIES

COLLET

MEGA NUT

PERFECT SEAL

MEGA WRENCH

SCREW

COLLET CHUCKS

MEGA NEW BABY CHUCK CLAMPING RANGE: Ø.010"-1.000" For Drills, Reamers, Taps & Finishing End Mills

COOLANT

MAX 20,000 RPM

THROUGH

L 1

BCV50

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Max RPM

Weight (lbs.)

Ød

ØD

L 1

Collet

Nut

Wrench

BCV50-MEGA6N-3.5 BCV50-MEGA6N-5 BCV50-MEGA6N-6 BCV50-MEGA8N-3.5 BCV50-MEGA8N-5 BCV50-MEGA8N-6 BCV50-MEGA10N-3.5 BCV50-MEGA10N-5 BCV50-MEGA10N-6 BCV50-MEGA10N-8 BCV50-MEGA13N-3.5 BCV50-MEGA13N-5 BCV50-MEGA13N-6 BCV50-MEGA13N-8 BCV50-MEGA16N-3.5 BCV50-MEGA16N-5 BCV50-MEGA16N-6 BCV50-MEGA16N-8 BCV50-MEGA20N-3.5 BCV50-MEGA20N-5 BCV50-MEGA20N-6 BCV50-MEGA20N-8 BCV50-MEGA25N-4 BCV50-MEGA25N-6

3.50 5.00 6.00 3.50 5.00 6.00 3.50 5.00 6.00 8.00 3.50 5.00 6.00 8.00 3.50 5.00 6.00 8.00 3.50 5.00 6.00 8.00 4.00 6.00

1.72 3.03 4.03 1.72 3.03 4.03 1.72 3.03 4.03 6.03 1.72 3.22 4.03 6.03 1.72 3.22 4.22 6.22 1.80 3.22 4.22 6.22 2.50 4.50

20,000 20,000 15,000 20,000 20,000 15,000 20,000 20,000 15,000 12,000 18,000 18,000 16,000 12,000 17,000 17,000 16,000 13,000 16,000 16,000 15,000 13,000 15,000 13,000

7.0 7.1 7.3 7.1 7.4 7.6 7.3 7.7 7.9 8.6 7.5 8.1 8.5 9.3 7.8 8.7 9.3

.010-.236

.787

.91-1.69

MGN6

MGR20

NBC6-

.020-.315

.984

1.02-1.77

MGN8

MGR25

NBC8-

.059-.394

1.181

1.50-1.89 NBC10-

MGN10

MGR30

.098-.512

1.378

1.73-2.48 NBC13-

MGN13

MGR35

.098-.630

1.654

1.89-2.68 NBC16-

MGN16

MGR42

10.4

8.1 9.0 9.7

.098-.787

1.811

2.01-2.68 NBC20-

MGN20

MGR46

11.0

8.8

.610-1.000

2.362

2.52-2.91 NBC25-

MGN25

MGR60L

10.9

ACCESSORIES

COLLET

MEGA NUT

PERFECT SEAL

MEGA WRENCH

SCREW

MEGA ER GRIP OVERVIEW

CLAMPING RANGE: Ø.075"-.787" (Ø1.9-20mm) High precision collet, nut and body that outperforms standard ER systems. Reliable and stable runout accuracy will also contribute to improving machining capability and cost reduction.

MAX 35,000 RPM

Reaming

End Milling Drilling

SPINDLE SYSTEM DUAL CONTACT

.00004"

.00012"

HIGH RIGIDITY BODY THAT INCREASES COLLET CONTACT AREA

By increasing the contact length of the internal taper of chuck bodies, the undesired overhang of the collet is reduced. This modification of the standard improves 3 of the most important requirements for the collet chuck: rigidity, runout accuracy and clamping force. (Conventional DIN collets can also be used)

ER COLLET WITH THE BEST RUNOUT ACCURACY IN THE WORLD Measurement standards in accordance with DIN 6499 and ISO 15488

Short

DIN/ISO

Clamping Range Ø.079 - Ø.394 Ø.394 - Ø.787

MEGA ER GRIP

MEGA ER ® GRIP

Class 1

Class 2

.0004 .0006

.0006 .0008

Within .00012

Current DIN Standard

Long

VARIETY OF NUT SELECTION Two types of ER nut as well as sealing nut offer the most suitable solution for your demand. These nuts can also be used for conventional ER chuck models.

2-WAY COOLANT SUPPLY Sealed nut MEGA PERFECT SEAL offers two coolant solutions.

THROUGH TOOLS

JET THROUGH

MEGA ER PERFECT SEAL

MEGA ER SOLID NUT

ER NUT

MEGA ER NUT

Tools with Holes

Tools without Holes

MEGA ER Nut

MERN

MERSN MEGA ER Solid Nut

MEGA ER Collet

ER Nut

ERC

THROUGH TOOLS

ERN

Adjusting Screw

MEGA ER PERFECT Seal

JET THROUGH

MERPS

MEGA Wrench

Without PS Ring

COLLET CHUCKS

MEGA ER GRIP CLAMPING RANGE: Ø.075"-.787" For Drills, Reamers, Taps & Finishing End Mills

MAX 35,000 RPM

COOLANT

THROUGH

Adjusting Screw (Optional)

L 1

BCV No.

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Nut (NOT Included)

Max RPM

Weight (lbs.)

Ød

ØD

L 1

Collet

Wrench

BCV40-MEGAER11-4NL BCV40-MEGAER16-3NL BCV40-MEGAER16-4NL BCV40-MEGAER16-5NL BCV40-MEGAER16-6NL BCV40-MEGAER20-3NL BCV40-MEGAER20-4NL BCV40-MEGAER20-5NL BCV40-MEGAER20-6NL BCV40-MEGAER25-3NL BCV40-MEGAER25-4NL BCV40-MEGAER25-5NL BCV40-MEGAER25-6NL BCV40-MEGAER32-3.25NL BCV40-MEGAER32-4NL BCV40-MEGAER32-5NL BCV40-MEGAER32-6NL BCV50-MEGAER16-3.5NL BCV50-MEGAER16-5NL BCV50-MEGAER16-6NL BCV50-MEGAER20-3.5NL BCV50-MEGAER20-5NL BCV50-MEGAER20-6NL BCV50-MEGAER25-3.5NL BCV50-MEGAER25-5NL BCV50-MEGAER25-6NL BCV50-MEGAER32-3.5NL BCV50-MEGAER32-5NL BCV50-MEGAER32-6NL

.108-.236

.787

4.00 3.00 4.00 5.00 6.00 3.00 4.00 5.00 6.00 3.00 4.00 5.00 6.00 3.25 4.00 5.00 6.00 3.50 5.00 6.00 3.50 5.00 6.00 3.50 5.00 6.00 3.50 5.00 6.00

2.48 1.50 2.48 3.46 4.49 1.50 2.48 3.50 4.49 1.61 2.60 3.58 4.61

.91-1.69

MERN11*

MGR20

30,000 35,000 25,000 20,000 15,000 30,000 25,000 20,000 15,000 30,000 20,000 15,000 12,000 30,000 20,000 15,000 12,000 20,000 20,000 15,000 18,000 18,000 16,000 17,000 17,000 16,000 16,000 16,000 15,000

2.5 3.1 3.3 3.5 4.0 3.3 3.5 4.0 4.2 3.5 4.0 4.4 4.8 3.7 4.4 5.1 5.9 8.4 8.8 9.0 8.6 9.0 9.5 8.8 9.5 9.9 9.0

ERC11-

.075-.394

1.181

1.38-1.85 ERC16-

MERN16*

MGR30L

.108-.512

1.378

1.65-2.44 ERC20-

MERN20*

MGR35L

1.73-2.56

.108-.630

1.654

MERN25*

MGR42L

ERC25-

1.73-2.64

.108-.787

1.969

— 1.97-2.68 ERC32-

MERN32*

MGR50L

1.85 3.35 4.33 1.85 3.35 4.33 1.85 3.35 4.33 1.89 3.39 4.37

.075-.394

1.181

1.39-1.84 ERC16-

MERN16*

MGR30L

.108-.512

1.378

1.65-2.43 ERC20-

MERN20*

MGR35L

.108-.630

1.654

1.74-2.65 ERC25-

MERN25*

MGR42L

.108-.787

1.969

1.97-2.68 ERC32-

MERN32*

MGR50L

10.1 11.0

! CAUTION

*Nut, adjusting screw, collet and wrench are not included • Weight does not include collet • MEGA ER GRIP is not able to use DIN6499 Form-A collets and ESX collets

To maintain the accuracy of the tool assembly, do not use collets and nuts manufactured by another company with the chuck body of BIG’s MEGA ER GRIP. We cannot guarantee the accuracy statement for our collets if they are assembled on the chuck body of another manufacturer.

• Please note that the practical spindle speed may be considerably influenced by the machine rigidity and tool balance, when using, slowly ramp up to the appropriate speed starting from slow speeds • “H” indicates the adjustment length with an adjusting screw

ACCESSORIES

*MEGA NUT is the recommended nut to achieve high accuracy and clamping force COLLET MEGA NUT* PERFECT SEAL SOLID NUT

MEGA WRENCH

SCREW

MEGA E CHUCK OVERVIEW

CLAMPING RANGE: Ø.125"-.500" (Ø3-12mm) Collet chuck designed exclusively for end milling up to Ø.500" with high concentricity & rigidity. MAX 40,000 RPM

Reaming

End Milling

SPINDLE SYSTEM DUAL CONTACT

SEALED COLLET NUT MEGA E PERFECT SEAL

HIGH CONCENTRICITY MEGA E COLLET 100% concentricity inspection. Runout within 1μm at nose is guaranteed. HIGH PRECISION

Sealed collet nut to supply coolant reliably through cutting tool. Ideal for burnishing drills and reamers due to the extended gripping length of the MEGA E CHUCK.

GUARANTEED MAX RUNOUT

AT COLLET NOSE 3μm at end of test bar 1 μm

.00004" .00012" 4d

All BIG Collets are AA Grade and inspected twice for accuracy

MAX COOLANT PRESSURE 1,000 PSI

• Use only cutting tool shanks with the exact same diameter as the collet bore diameter.

HIGH GRIPPING STRENGTH COLLET Gripping force is an important element for end milling with a collet chuck. The long gripping length of the collet in the

SUBSTANTIAL AND TAPERED BODY DESIGN Thick body eliminates chatter and deflection. Tapered extension provides the rigidity to prevent vibration.

Extended Clamping Area

Bearings

Thick Body

Shallow Taper

Seals

MEGA E series provides a powerful gripping force. The shallower taper of the collet improves concentricity in order to achieve better surface finishes and longer cutting tool life.

MEGA E Nut

MEN

MEGA E Collet

MEC

THROUGH TOOLS

MEGA E PERFECT Seal

Adjusting Screw

EPS

JET THROUGH

MEGA Wrench MEGA Torque Wrench

Without PS Ring

COLLET CHUCKS

MEGA E CHUCK CLAMPING RANGE: Ø.125"-.500" (Ø3-12mm) Exclusively for High Speed Finish End Milling

MAX 35,000 RPM

COOLANT

THROUGH

L 1

BCV No.

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Max RPM

Weight (lbs.)

Ød

ØD

ØD 1

L 1

Collet

Nut

Wrench

BCV40-MEGA6E-3 BCV40-MEGA6E-4 BCV40-MEGA6E-5 BCV40-MEGA6E-6 BCV40-MEGA8E-3 BCV40-MEGA8E-4 BCV40-MEGA8E-5 BCV40-MEGA8E-6 BCV40-MEGA10E-3 BCV40-MEGA10E-4 BCV40-MEGA10E-5 BCV40-MEGA10E-6 BCV40-MEGA10E-8 BCV40-MEGA13E-3 BCV40-MEGA13E-4 BCV40-MEGA13E-5 BCV40-MEGA13E-6 BCV40-MEGA13E-8 BCV50-MEGA13E-4 BCV50-MEGA13E-5 BCV50-MEGA13E-6 BCV50-MEGA13E-8

1.09 1.25 1.45 1.50 1.28 1.46 1.55 1.69 1.48 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.65 1.90 2.07 2.25 2.42

3.00 4.00 5.00 6.00 3.00 4.00 5.00 6.00 3.00 4.00 5.00 6.00 8.00 3.00 4.00 5.00 6.00 8.00 4.00 5.00 6.00 8.00

1.50 2.42 3.54 4.54 1.50 2.54 3.58 4.58 1.54 2.58 3.58 4.58 6.62 1.62 2.62 3.62 4.62 6.62 2.42 3.42 4.42 6.50

35,000 29,000 29,000 20,000 30,000 29,000 29,000 20,000 30,000 29,000 29,000 22,000 16,000 30,000 29,000 29,000 22,000 16,000 18,000 18,000 16,000 12,000

2.5 3.0 3.4 3.8 2.8 3.2 3.6 4.3 2.9 3.4 3.9 4.5 5.2 3.2 3.8 4.3 4.9 6.1 8.5 9.3

.125-.250 (3-6mm)

.984

1.45-1.77 MEC6-

MEN6 MGR25

.125-.250 (3-8mm)

1.181

1.65-2.00 MEC8-

MEN8 MGR30

.125-.375 (3-10mm)

1.378

1.89-2.28 MEC10-

MEN10 MGR35

.125-.500 (3-12mm)

1.654

1.96-2.36 MEC13-

MEN13 MGR42

.125-.500 (3-12mm)

1.654

1.96-2.36 MEC13-

MEN13 MGR42

10.6 12.8

• MEGA E NUT is included; collet, wrench and adjusting screw must be ordered separately • Weight includes nut but not collet • Center through coolant supply is available • Please note that the practical spindle speed may be considerably influenced by the machine rigidity and tool balance, when using, slowly ramp up to the appropriate speed starting from slow speeds • “H” indicates the adjustment length with an adjusting screw

ACCESSORIES

COLLET

MEGA NUT

PERFECT SEAL

MEGA WRENCH

SCREW

MEGA DOUBLE POWER CHUCK OVERVIEW

CLAMPING RANGE: Ø.500"-1.500" (Ø12-50mm) High rigidity design for heavy cutting. Flange contacting nut and simultaneous taper & flange contact ensure highest rigidity. MAX 30,000 RPM

End Milling

SPINDLE SYSTEM DUAL CONTACT

STABILIZING CONTACT BETWEEN FLANGE & NUT PROVIDES EXCEPTIONAL RIGIDITY The expanded contact diameter of the nut of the MEGA DOUBLE POWER CHUCK to the flange provides the highest rigidity as if the chuck and nut were one solid piece. This superior rigidity ensures heavier duty machining without chatter.

BIG-PLUS

CONVENTIONAL

BBT50-MEGA32D-105 Radial d= .551” (14mm) Power= 20.3hp (15.2kW)

Other Manufacturer (L=90) Radial d= .374” (9.5mm) Power= 12.3hp (9.2kW)

CONTACT

Cutting Conditions Cutter: Coated Carbide End Mill Ø32mm, 4-flutes

Work Material: A36 Steel (JIS SS400) Cutting Speed: 925 SFM (282 m/min) Spindle Speed: 2,800 RPM Feed Rate: 44 IPM (1,120 mm/min)

Released

Tightened

SECURE COOLANT SUPPLY Two types are individually designed for the most

JET THROUGH

A VARIETY OF STRAIGHT COLLETS AVAILABLE

effective coolant supply. • Improved surface finish • Smoother chip evacuation • Extended tool life • Cooling & lubrication of tools

For jet through PJC collet

For through tools PSC collet

For through tools OCA collet

Type DS

C Collet

JET THROUGH

PJC Collet

THROUGH TOOLS

MEGA Wrench

PSC Collet

MILLING CHUCKS

MEGA DOUBLE POWER CHUCK CLAMPING RANGE: Ø.500"-1.500" For Heavy Duty End Milling

COOLANT

MAX 30,000 RPM

THROUGH

COOLANT

BCV No.

L 1

L 2

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Min Clamping Length E

Max RPM

Weight (lbs.)

Ød

ØD

ØD 1

L 1

L 2

Wrench

.500

BCV40-MEGA.500DS-2.5

1.500 1.654 1.969 2.441 2.756

1.700 2.071 2.193 2.469 2.783

2.54 3.59 3.59 3.59 4.09 4.09 6.09 4.09 6.09 4.09 6.09 4.09 6.09 4.58

.98

1.77 2.01 2.09 2.09 2.36 1.42 1.42 2.72 4.72 2.58 4.58 2.53 4.53 2.86

2.24 2.88 3.44 3.44 3.63

1.70 2.13 2.25 2.50 2.75

MGR38

30,000

2.6 3.9 4.0 4.6 5.1 8.8

BCV40-MEGA.625DS-3.5A .625 BCV40-MEGA.750DS-3.5A .750 BCV40-MEGA1.000DS-3.5A 1.000 BCV40-MEGA1.250DS-4A 1.250

1.06 1.40 1.61 1.42

MGR42L 30,000 MGR50L 30,000 MGR62L 27,000 MGR70L 26,000

BCV50-MEGA.625DS-4 BCV50-MEGA.625DS-6 BCV50-MEGA.750DS-4 BCV50-MEGA.750DS-6 BCV50-MEGA1.000DS-4 BCV50-MEGA1.000DS-6 BCV50-MEGA1.250DS-4 BCV50-MEGA1.250DS-6 BCV50-MEGA1.500DS-4.5

21,000 19,000 20,000 17,000 20,000 17,000 20,000 15,000

.625

1.811

2.165

1.02

2.88

2.13

MGR46L

10.8

9.9

.750

2.362

2.717

1.10

3.44

2.25

MGR60L

13.0 10.6 14.3 11.3 15.9 14.6

1.000

2.756

3.031

1.34

3.63

2.50

MGR70L

1.250

3.150

3.386

1.65

4.22

2.75

MGR80L

1.500

3.898

3.925

1.65

4.29

2.75

MGR99L 15,000

• Wrench must be ordered separately • Please note that the practical spindle speed may be considerably influenced by the machine rigidity and tool balance, when using, slowly ramp up to the appropriate speed starting from slow speeds • “H” indicates the adjustment length with an adjusting screw • MEGA.625DS requires the hex socket head screw (M8) for axial adjustment, however, please contact us if using for center through applications • DS types have jet-through coolant supply, thus tools with holes cannot be used

ACCESSORIES

PERFECT SEAL/ JET COLLET

COLLET

MEGA WRENCH

SCREW

MILLING CHUCKS

MEGA DOUBLE POWER CHUCK CLAMPING RANGE: Ø.625"-1.500" High Rigidity Type for Heavy Duty End Milling

HIGHER RIGIDITY

MAX 30,000 RPM

COOLANT

THROUGH

ØD 2

COOLANT

BCV No.

L 1

L 2

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Min Clamping Length E

Max RPM

Weight (lbs.)

Ød

ØD ØD 1

ØD 2

L 1

L 2

Wrench

BCV40H-MEGA.625DS-3.5A .625 BCV40H-MEGA.750DS-3.5A .750 BCV40H-MEGA1.000DS-3.5A 1.000 BCV40H-MEGA1.250DS-4A 1.250

1.654 2.071 2.39 1.969 2.193 2.39

3.59 3.59

1.06 1.40 1.61 1.42 1.10 1.34 1.65 1.65

1.42 1.85

2.87 3.44

2.25 2.29 2.33 2.64 2.29 2.64 2.88 2.88

MGR42L 30,000 MGR50L 30,000 MGR62L 27,000 MGR70L 26,000 MGR60L 20,000

3.6 4.0 4.6 5.1 9.9

2.441 2.469 2.756 2.783

— 3.59 — 4.09

— 3.42 — 3.63

.750

BCV50H-MEGA.750DS-4 BCV50H-MEGA1.000DS-4 BCV50H-MEGA1.250DS-4 BCV50H-MEGA1.500DS-4.5

2.362 2.717 2.99 2.756 3.031 3.32 3.150 3.386 3.57

4.09 4.09 4.09

1.51 1.87 2.23

3.44 3.63 4.22

1.000 1.250 1.500

MGR70L 20,000 10.6 MGR80L 20,000 11.3 MGR99L 15,000 14.6

3.898 3.925

— 4.58

— 4.29

ACCESSORIES

PERFECT SEAL/ JET COLLET

COLLET

MEGA WRENCH

SCREW

H type conforms to ASME B5.50-2015 standard for safe zone. Interference with tool changer may occur on machines made to an older standard. Consult engineering for specific information about the intended machine. ! CAUTION

NEW Hi-POWER MILLING CHUCK OVERVIEW

CLAMPING RANGE: Ø.500"-1.500" (Ø12-42mm) Highly rigid chuck for resistance against chatter. Supports end milling with its heavy duty gripping force and high runout accuracy. NEW Hi-POWER -POWER MILLING CHUCK

End Milling

SPINDLE SYSTEM DUAL CONTACT

RELIABLE SLIT DESIGN ENSURES HIGH ACCURACY A unique BIG slit shape is adopted to achieve both the essential runout accuracy and gripping force which are the key elements of a milling chuck. Stable clamping is possible due to sufficient elastic deformation and the ability to remove oil film from the tool shank.

THE MILLING CHUCK IS ALSO IDEAL AS A BASIC HOLDER Allows the reliable use of straight collets as well as boring bars and arbors such as face milling cutters.

SUPPORTS VARIOUS MACHINING

NEW Hi-POWER MILLING CHUCK

Stable Runout Accuracy Heavy Duty Gripping Force

Within .02

Tandem Roller Unit

Slits drain oil, preventing slip

Enhanced Shank Series BBT/BT SHANK

Consistent Elastic Deformation

BCV SHANK HSK SHANK BIG CAPTO SHANK

RELIABLE SLIT DESIGN ENSURES HIGH ACCURACY CLAMPING DIAMETER: Ø12mm & .500"

Slim Nut Diameter of Ø1.260" Reduces Interference

TOOL EDGE RUNOUT <2μm

RUNOUT ADJUSTABLE RA HOLDER Simple Structure Allows for Easy Adjustment of Runout Accuracy Compensates for increased runout of machine tool spindles caused by extended use. Simple structure allows for easy adjustment in the machine. • Consistent hole diameter • Improved surface roughness • Increased tool life

DIAMETER SLIMMER THAN COLLET CHUCKS

JET THROUGH

HMC12J

NBS13

NBS16

ø1.260

ø1.654

ø1.378

MILLING CHUCKS

NEW Hi-POWER MILLING CHUCK CLAMPING RANGE: Ø.750"-1.500" (Ø20-32mm) For Heavy Duty End Milling

COOLANT

THROUGH

BCV No.

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Min Clamping Length E

Weight (lbs.)

Ød

ØD

ØD 1

Wrench

.750

BCV40-HMC.750S-3.5 BCV40-HMC1.000S-3.5 BCV40-HMC1.250S-4 BCV40-HMC20S-85 BCV40-HMC32S-100 BCV50-HMC.750-4 BCV50-HMC1.000-4 BCV50-HMC1.250-4 BCV50-HMC1.500-4.5 BCV50-HMC20S-105 BCV50-HMC32S-105

1.969 2.323 2.677 1.969 2.677 2.362 2.441 3.150 3.898 1.969 2.677

2.008 2.362 2.717 1.996 2.705 2.402 2.480 3.189 3.937 1.996 2.705

3.50 3.50 4.00 3.35 3.94 4.00 4.00 4.00 4.50 4.13 4.13

3.34 3.42 3.54

2.25 2.50 2.75 2.20 2.52 2.25 2.50 2.75 2.75 2.20 2.83

FK45-50L FK58-62L FK68-75L FK45-50L FK68-75L FK58-62 FK58-62 FK80-90 FK92-100 FK45-50L FK68-75L

3.4 4.2 4.7 3.4 4.4 9.3 8.9

1.000 1.250 20mm 32mm

2.72-3.11 3.03-3.42

.750

3.34 3.54 4.13 4.21

1.000 1.250 1.500 20mm 32mm

10.2 13.2

2.72-3.11 3.46-3.86

8.4 9.6

ACCESSORIES

• Wrench and axial adjusting screw must be ordered separately • “H” indicates the adjustment length with an adjusting screw

PERFECT SEAL/ JET COLLET

COLLET

WRENCH

SCREW

NEW Hi-POWER MILLING CHUCK CLAMPING RANGE: Ø.500"

2.56 2.50

JET THROUGH

1.69 Min Clamping Length

BCV40

Coolant

COOLANT

1.63

THROUGH

SPINDLE SYSTEM DUAL CONTACT

ACCESSORIES

Catalog Number

Weight (lbs.)

Wrench

PERFECT SEAL/ JET COLLET

BCV40-HMC.500J-2.5

FK31-33

2.4

WRENCH

• Wrench must be ordered separately

HYDRAULIC CHUCK OVERVIEW

CLAMPING RANGE: Ø.125"-1.250" (Ø3-32mm) For high precision machining. Ideal tool holders for machining processes that require high accuracy such as drills, reamers, ball mills, end mills, diamond reamers and grinding tools.

MAX 40,000 RPM

Reaming

Finish Milling Drilling

SPINDLE SYSTEM DUAL CONTACT

A WIDE VARIETY OF CLAMPING DIAMETERS & PROJECTIONS AVAILABLE

Short Projection Length

Dual Oil Pressure Points

RUNOUT ACCURACY LESS THAN .00012" High precision runout accuracy less than .00012" at 4xD improves the workpiece surface finish and extends tool life.

INTERNAL STRUCTURE WITH INCREASED ACCURACY AND RIGIDITY The integrated structure of the body and clamp sleeve gives greater rigidity and achieves better accuracy compared to the traditional two-part construction sealed with O-rings. 2-point tightening with dual hydraulic chambers and a short overhang area where the tool is not clamped give improved runout accuracy.

HIGH RUNOUT ACCURACY <3μm

4xD

EASY CLAMPING WITH 1 WRENCH The cutting tool can be clamped or unclamped easily and securely with just 1 wrench.

ALLOWABLE SHANK TOLERANCE OF CUTTING TOOLS (h6)

REFERENCE INFORMATION “h6” INCH SERIES

REFERENCE INFORMATION “h6” METRIC SERIES

Cutting Tool Shank Ø

Allowable Tolerance +0, -.00035 +0, -.00043 +0, -.0005

Cutting Tool Shank Ø

Allowable Tolerance (μm)

1/8, 1/4, 3/8

3, 4, 6, 8, 10mm 12, 14, 16, 18mm

+0, -8μm +0, -11μm +0, -13μsm

1/2, 5/8

3/4, 1, 1 1/4

20, 25, 32mm

HYDRAULIC CHUCK OVERVIEW

Meets a variety of machining applications. Extensive offering of length and clamping diameters.

SUPER SLIM TYPE

MIN. BODY DIAMETER: Ø.551" Slim design eliminates interference. Ideal for high precision 5-axis machining.

MAX 60,000 RPM

CYLINDRICAL SHANK SERIES High precision cylindrical shank hydraulic chuck suitable for solving interference problems.

HSK-E25/E32/E40/E50/F63 SERIES Ultra-Compact and High Precision Hydraulic chuck suitable for small machining centers.

PREBALANCING HSK-E25 <.5G.MM

JET THROUGH TYPE

Jet Through Hole MIN. BODY DIAMETER: .79" Securely supplies coolant or oil mist to the tool periphery. Delivers outstanding results with high accuracy finishing in 5-axis machines. MAX 35,000 RPM Coolant Hole at Nose Supplies Coolant

Jet Through Groove

Type J — .250", .375", .500", 4mm, 6mm, 8mm, 10mm & 12mm

Type J — 16mm, 20mm, 25mm & 32mm

HYDRAULIC CHUCKS

SUPER SLIM TYPE CLAMPING RANGE: Ø.250"-.500" (Ø6-12mm) For Drills, Reamers, Ball Mills, End Mills, Diamond Reamers & Grinding Tools

COOLANT

THROUGH

ACCESSORIES

BCV No.

L 1

L 2

GRIP BAR

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Min Clamping Length E

Max RPM

Weight (lbs.)

Ød

ØD

ØD 1

ØD 2

L 1

L 2

BCV40-HDC.250S-5 BCV40-HDC.375S-5 BCV40-HDC.500S-5 BCV40-HDC6S-125 BCV40-HDC8S-125 BCV40-HDC10S-125 BCV40-HDC12S-125 BCV50-HDC6S-150 BCV50-HDC8S-150 BCV50-HDC10S-150 BCV50-HDC12S-150

.250 .375 .500

.56 .75 .87

1.03 1.99 1.30

2.24

3.32 3.36 3.44 3.34

.99

30,000 28,000 28,000 30,000 30,000 28,000 28,000 20,000 20,000 20,000 20,000

2.8 3.0 3.1 2.9 2.9 3.1 3.1 7.7 7.9 7.9 8.1

1.30 1.42

5.00

2.06

6mm 8mm

.551 .669 .748 .827 .551 .669 .748 .827

1.024 1.102 1.181 1.260 1.024 1.102 1.181 1.260

2.24

.99

1.75

1.18 1.26 1.38

4.92

3.38

10mm 12mm

2.05

3.42

6mm 8mm

2.24

.99

3.54

1.18 1.26 1.38

2.75

5.91

10mm 12mm

3.66 3.74

2.05

• Adjusting screw cannot be used

JET COOLANT TYPE CLAMPING RANGE: Ø.250"-.500" Coolant Holes Through Body of Holder C AMPING RA

COOLANT

JET THROUGH

THROUGH

L 1

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Min Clamping Length E

Weight (lbs)

Ød

ØD D

ØD 1

ØD 2

L 1

ACCESSORIES

BCV40-HDC.250J-4 BCV40-HDC.375J-4 BCV40-HDC.500J-4

.250 .375 .500

.79 .95

1.06 1.22 1.34

2.50 2.54 2.57

.99

2.7 2.8 2.9

1.30 1.42

1.75

4.00

1.07

GRIP BAR

• Adjusting screws cannot be used

Use only cutting tools that have a shank tolerance of h6. Do not use with cutting tools made with a flat on the shank (ie: Weldon type shank). Roughing end mills are not recommended for use with hydraulic chucks. Do not tighten the clamping screw without first inserting a cutting tool into the tool holder. Always insert the cutting tool into the hydraulic tool holder beyond min. clamping length “E”. ! CAUTION

HYDRAULIC CHUCKS

CLAMPING RANGE: Ø.250"-1.250" (Ø6-20mm) For Drills, Reamers, Ball Mills, End Mills, Diamond Reamers & Grinding Tools

COOLANT

SPINDLE SYSTEM DUAL CONTACT

THROUGH

Adjusting Screw (Optional)

L 1

Fig. 3

Fig. 1

Fig. 2

L 1

L 2

Catalog Number

Min Clamping Length E

Adjusting Screw

Weight (lbs.)

Fig.

Ød

ØD ØD 1

ØD 2

L 1

L 2

BCV40-HDC.250-2.5 BCV40-HDC.250-4 BCV40-HDC.250-5.5 BCV40-HDC.375-2.5 BCV40-HDC.375-4 BCV40-HDC.375-5.5 BCV40-HDC.500-2.5 BCV40-HDC.500-4 BCV40-HDC.500-5.5 BCV40-HDC.625-3 BCV40-HDC.625-4 BCV40-HDC.625-5.5 BCV40-HDC.750-3 BCV40-HDC.750-4 BCV40-HDC.750-5.5 BCV40-HDC1.000-3 BCV40-HDC1.000-4 BCV40-HDC1.000-5 BCV40-HDC1.250-4 BCV40-HDC6-90 BCV40-HDC8-90 BCV40-HDC10-90 BCV40-HDC12-90 BCV40-HDC20-90

— 2.50

1.02

—

2.4 3.1 3.8 2.7 3.1 4.0 2.7 3.3 4.0 2.9 3.3 4.2 3.1 3.6 4.4 4.0 4.7 5.8 5.8

1.20 1.75

4.00 5.50

2.48 4.09

.250

1.024 1.750

1.10-1.97

1.10

HDA6-05032

1.75

— 2.50

1.04

—

.375

1.181 1.750

1.37 1.75

4.00 5.50

2.52 4.09

1.30-2.17

1.30

HDA10-08032

1.75

— 2.50

.98

—

.500

1.299 1.750

1.75

4.00

2.60 4.09

1.50-2.36

1.50

HDA12-10032

1.75

— 5.50

3.00 4.00 5.50

1.54

—

HDA16-12030

.625

1.496 1.750 1.75

2.60

1.69-2.76

1.69

2.00

HDA16-12037

—

— 3.00

1.57

2.60 4.09 4.13

HDA16-12030

.750

1.654 1.750

4.00 5.50 3.00 4.00 5.00

1.69-2.76

1.69

1.75

2.00

HDA16-12037

.61

HDA16-12015

1.000

2.165 2.480

—

1.25 1.75 1.25 1.89 1.72 1.75 1.76 1.58

— 2.05-3.15

2.05

HDA25-16039

1.250 6mm 8mm 10mm 12mm 20mm

2.677 2.953

— 4.00

— 2.20-3.15

2.20

HDA25-16039 HDA6-05032 HDA8-06032 HDA10-08032 HDA12-10032 HDA16-12037

1.024 1.102 1.181 1.260

1.10-1.97

1.10

2.8

1.750

— 3.54

—

1.30-2.17 1.50-2.36

1.30 1.50 1.69

2.9

1.653 1.750

— 3.54

— 1.69-2.76

4.4

• Adjustable cutter length H is the adjustable length in the use of adjusting screw

ACCESSORIES

PERFECT SEAL/ JET COLLET

GRIP BAR

SCREW

HYDRAULIC CHUCKS

CLAMPING RANGE: Ø.250"-1.250" (Ø32mm) For Drills, Reamers, Ball Mills, End Mills, Diamond Reamers & Grinding Tools

COOLANT

SPINDLE SYSTEM DUAL CONTACT

THROUGH

Adjusting Screw (Optional)

L 1

Fig. 3

Fig. 1

Fig. 2

L 2

Catalog Number

Min Clamping Length E

Adjusting Screw

Weight (lbs.)

Fig.

Ød

ØD ØD 1

ØD 2

L 1

L 2

BCV50-HDC.250-3.5 BCV50-HDC.250-5 BCV50-HDC.250-6.5 BCV50-HDC.375-3.5 BCV50-HDC.375-5 BCV50-HDC.375-6.5 BCV50-HDC.500-3.5 BCV50-HDC.500-5 BCV50-HDC.500-6.5 BCV50-HDC.625-3.5 BCV50-HDC.625-5 BCV50-HDC.625-6.5 BCV50-HDC.750-3.5 BCV50-HDC.750-5 BCV50-HDC.750-6.5 BCV50-HDC1.000-3.5 BCV50-HDC1.000-5 BCV50-HDC1.000-6.5 BCV50-HDC1.250-3.5 BCV50-HDC1.250-5 BCV50-HDC1.250-6.5

— 3.50

—

7.3 8.0 9.1 7.3 8.0 9.3 7.6 8.2 9.6 7.8 8.7

1.53 2.13

5.00 6.50

3.19 4.92

.250

1.024 2.750

1.75

1.10-1.97

1.10

HDA6-05032

— 3.50

—

.375

1.181 2.750

1.71 2.31

5.00 6.50

1.75

3.27 4.96

1.30-2.17

1.30

HDA10-08032

— 3.50

—

.500

1.299 2.750

1.85 2.45

5.00 6.50

1.75

3.31 5.00

1.50-2.36

1.50

HDA12-10032

— 3.50

1.75

—

.625

1.496 2.750

1.97 2.57

5.00 6.50

3.35

1.69-2.76

1.69

HDA16-12037

2.00

—

10.2

— 3.50

1.75

3.43 5.04 5.12

8.0 8.9

.750

1.654 2.750

2.15 2.75

5.00 6.50 3.50 5.00 6.50 3.50 5.00 6.50

1.69-2.76

1.69

HDA16-12037

2.00

10.7

2.03 3.54 5.04 2.09 3.58 5.08 2.13

8.9

1.000

2.480 2.750

—

— 2.05-3.15

2.05

HDA25-16039

10.7 12.7 10.6 11.8 14.4

1.250

2.717 2.750

—

— 2.20-3.15

2.20

HDA25-16039

BCV50-HDC32-90

32mm

2.677 2.953

— 3.54

— 2.20-3.15

2.20

HDA25-16039

9.6

• “H” indicates the adjustment length with an adjusting screw

ACCESSORIES

PERFECT SEAL/ JET COLLET

GRIP BAR

SCREW

BASIC ARBOR

SHRINK FIT HOLDER CLAMPING RANGE: Ø.250"-1.250" (Ø8-12mm)

L 1

Fig. 1

Fig. 2

4.5º

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Min Clamping Length E

Weight (lbs.)

Fig.

Ød

ØD 1

ØD 2

L 1

BCV40-SF.250-3.5 BCV40-SF.375-3.5 BCV40-SF.500-3.5 BCV40-SF.500-6 BCV40-SF.625-3.5 BCV40-SF.625-6 BCV40-SF.750-4 BCV40-SF.750-6 BCV40-SF1.000-4 BCV40-SF1.000-6 BCV40-SF8-80 BCV40-SF10-80 BCV40-SF12-80 BCV50-SF.500-4 BCV50-SF.625-4 BCV50-SF.750-4 BCV50-SF.750-6 BCV50-SF1.000-4 BCV50-SF1.000-6 BCV50-SF1.250-4 BCV50-SF1.250-6

.250 .375

.827

1.06

1.50

.87

2.6 2.7 2.7 3.4 2.7 3.6 3.1 4.2 3.8 5.6 2.2 2.4 2.4 7.2 7.5 7.7 8.8 8.4

—

1.22

3.50

.945

1.26

2.00

.500

1.42

M10 P1

6.00 3.50 6.00 4.00 6.00 4.00 6.00 3.15 3.15 3.15 4.00 4.00 4.00 6.00 4.00 6.00 4.00 6.00

.625

1.063

1.34

1.50

1.54

M12 P1

.750

1.299

1.65

M16 P1

2.25

1.85

1.000

1.732

2.09

M16 P1

8mm

.827 .945 .945 .945

1.06 1.26 1.26 1.26 1.34

2.17 2.17 2.17 2.00 1.75

1.02 1.22 1.42 1.42 1.54

10mm 12mm

—

.500 .625

M10 P1 M12 P1

1.063

.750

1.299

1.65

1.61

M16 P1

1.000

1.85

M16 P1

2.27

10.2

1.732

2.09

8.1 9.8

1.250

2.01

M16 P1

Please refer to the operation manual of heating/cooling equipment, as some equipment may not be compatible. ! CAUTION

• Use a carbide shank cutter within a tolerance of h6 • Center through coolant supply is available with tools with oil holes

MEGA SYNCHRO TAPPING HOLDER OVERVIEW

TAPPING RANGE: ANSI: No.0-NPT1", JIS/DIN/ISO: M1-M36 Tool holder for rigid tapping compensates for synchronization errors during tapping. Improves thread quality and tool life by reducing thrust loads caused by synchronization errors up to 90%. • Patent is licensed from EMUGE

Tapping

SPINDLE SYSTEM DUAL CONTACT

54 BODY MODELS AND 276 TAP HOLDER MODELS ARE AVAILABLE Large tap series achieves a maximum of NPT1". An extensive variety of bodies suitable for many spindle types. Short, middle & long tap holders are standardized to cover between No.2 and NPT1" (M2 and M36). The slim design avoids interference.

DRIVE KEY

SECURE DRIVE The body and Tap Holder are fixed with a drive key in the rotation direction as well as the square of the tap.

COOLANT THROUGH CENTER CAPABILITY FOR ALL MODELS Coolant is supplied both through the tool and to the tool periphery simultaneously.

THROUGH TOOLS

JET THROUGH

Coolant is Supplied Through Both the Tool and Slits of the Tap Holder

Coolant is Supplied Through Slits of the Tap Holder

MEGA SYNCHRO TAPPING HOLDER OVERVIEW

BIG MEGA SYNCHRO tapping holder compensates for synchronization errors with any type of tap. Minimized thrust load to both the tap and workpiece improves thread quality and tap life.

LOAD TO TAP

Time (sec.)

1.0

1.2

1.4

1.6

-90 -68 -45 -22 0 22

BIG MEGA SYNCHRO

Approx. 13.2 lbs

BIG MEGA SYNCHRO reduces load to approx. 13.2 lbs. This is less than 1/10th of the load compared to a collet chuck.

SPIRAL TAP AU:1/4-20, N=1,000 RPM

-180 -160 -135 -110

Approx. 165 lbs. of reversal load is applied to a tap held with a collet chuck.

Spiral grooves on spiral tap cause loading in the reverse direction, similar to an end mill. • Measured by Kistler Dynamometer

Approx. 165 lbs Collet Chuck

forward

stop

reverse

COMPARISON OF SURFACE FINISH Tapping of exotic materials tends to cause a compressed burr on the thread surface. BIG MEGA SYNCHRO compensates for synchronization errors and minimizes the cutting load. Fine surface finish of threads is achieved.

Cutting Conditions Spiral Tap No.10-24 Material: 4130

COLLET CHUCK

BIG MEGA SYNCHRO

.0002"

PATENT # 9446463

MEGA MICRO NUT

MEGA MICRO COLLET

.0002"

MGT3

.0002"

FOR SMALL TAP TAPPING RANGE: ANSI: No.0-No.6, JIS/DIN/ISO: M1-M3

DYNAMIC RUNOUT ACCURACY WITHIN .0002 " (5μM) EVEN AT 5,000 RPM Plotted position of a test bar (at .630" distance on .157" diameter)

Eliminating synchronization errors and minimizing dynamic runout at high speeds provides stable thread quality and extended tool life. • BBT Shank • HSK Shank • Cylindrical Shank • N/C Lathe Tooling

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