BIG Daishowa Vol. 1 High Precision Tool Holder Systems
296Pages

Higher Performance. Guaranteed. HIGH PRECISION TOOL HOLDER SYSTEMS

PREMIUM PROVIDER OF TOOL HOLDERS Tool holders for advanced metalworking environments—from standard production machining challenges to extreme precision and complex applications—these superior products deliver lower costs through higher efciency.

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 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...

BIG-PLUS® OVERVIEW Improvement of ATC Repeatability The BIG-PLUS® Spindle System assures the highest precision location of the tool holder in the spindle when using the ATC for loading tools as a result of the dual contact, which precisely positions the tool holder within 1 micron. ATC Repeatability Machine: Horizontal (4 years old) Taper Contact (Conventional) Dual Contact (BIG-PLUS®) Test Bar (Zero Runout) Minimized Deflection for Maximum Machining Accuracy & Superior Finish With BIG-PLUS® simultaneous contact, machining rigidity is greatly enhanced due to the larger contact diameter of...

ISO 12164/DIN 69893 Selected materials and strict control of dimensional accuracy for the optimum quality. Wide range of standard holders to meet all production requirements. Premium Material Selection Since HSK is a hollow taper shank, the material has a critical role for optimum performance. BIG uses carefully selected high grade alloy steels. Particularly, BIG uses die steel materials for HSK40 and smaller where the cross section of shank taper is very thin. Drive Key Form HSK Shanks according to Form A are designed to carry out torque transmission by the round shaped key-way at the end...

A dual contact modular turning and rotating tool holder system that strengthens the performance of MTC's. The BIG CAPTO modular tooling system offers better efficiency, material selection and heat treatment. * The trademark CAPTO is licensed from Sandvik Coromant Excellent Repeatability & Runout High repeatability is achieved due to the perfect fit of the polygon taper to drive spindle rotation. The combination of a self-centering 1:20 taper and the long taper edge assures stable runout accuracy. A Wider Range of Rotating BIG CAPTO Tooling than Any Other Provider As a licensed manufacturer...

MEGA CHUCK SERIES OVERVIEW R Wide variety of collets and chuck bodies to cover all high-speed ultra-precision machining applications. Precision Ground and Balanced for High Speed Machining Mega Chucks are micro—mirror ground—finished on all surfaces to assure perfect concentricity for high speed machining. The drive keyway is machined after heat treatment. DUAL CONTACT SPINDLE SYSTEM Drive keyways are machined after heat treatment Notch-Free Design Mega Nut Prevents Vibration & Reduces Noise Notches for wrench application Notches for wrench application Vibration at high speeds is eliminated...

MEGA MICRO CHUCK OVERVIEW DUAL CONTACT SPINDLE SYSTEM 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. Extremely Slim Design Nut ø.394"/.472"/.551"/.709" Sealed Nut for Through-Tool Coolant Mega Micro Collet 100% concentricity inspection. Guaranteed runout within .00004" at the nose. Available for higher precision in steps of ø.004" (ø.1mm) Slim design avoids interference. Ideal for small mold making combining speed and high precision capability. High Concentricity All...

MEGA NEW BABY CHUCK OVERVIEW CLAMPING RANGE: ø.010"-.787" (ø.25-20mm) High speed design, offered in six different collet series sizes. Utilizes ultra precision New Baby Collets which guarantee a runout at the collet nose of less than .00004". MAX DUAL CONTACT SPINDLE SYSTEM 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. Tool Extension Less Rigid Maximum Performance! Tool Extension Less Rigid IDEAL CONDITION! High Precision Collet, Close to Submicron Mega...

MEGA ER GRIP OVERVIEW DUAL CONTACT SPINDLE SYSTEM 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 tremendously contribute to improving machining capability and cost reduction. The ER Collet with the Best Runout Accuracy in the World .00004" Measurement Standards: In accordance with DIN 6499 and ISO 15488 High Rigidity Body that Increases the Contact Area of the Collet By increasing the contact length of the internal taper of chuck bodies, the undesired overhang of the collet is...

MEGA E CHUCK OVERVIEW R DUAL CONTACT SPINDLE SYSTEM CLAMPING RANGE: ø.125"-.500" (ø3-12mm) Collet chuck designed exclusively for end milling up to ø.500" with high concentricity & rigidity. Extended Clamping Area Bearings Shallow Taper Clamping Nut with Thrust Ball Bearings Eliminates distortion of the collet during tightening for higher gripping force and improved concentricity. Ultimate Performance in Both Chip Volume and Surface Finish Removal ci/min All BIG Collets are AA Grade and inspected twice for accuracy OTHER MANUFACTURER Slit-Through Coolant Coolant is reliably directed to the...

COLLET CHUCK PROGRAM OVERVIEW Taper Type Collet Chuck Series Tool Shank Range Collet Chuck Series (øD=Nut Diameter)