Tooling Components Overview

This document details specifications and descriptions of milling and collet tooling components designed for high precision, rigidity, and versatility in machining. Key components include milling chucks, collets, collet holders, arbors, pull studs, and thermo grip chucks.

Milling Chuck (TR Type)

• Features: High-speed, high-precision chuck with strong, balanced clamping force suitable for heavy cutting.
• Coolant Compatibility: Supports center-through and side-through coolant without special options.
• Design: Thick-walled body enhances rigidity and vibration stability for difficult materials and high cutting conditions.
• Accuracy: Runout accuracy (TIR) of 15μm at 4×D diameter.
• Pressure Rating: Coolant pressure up to 7 MPa.
• Compatibility & Limitations: Uses straight collets (ordered separately); clamping force reduces with straight collets. Some models may interfere with machine tool dimensions (L1, D1), requiring user verification.

Straight Collets (ASS Type)

• Designed for TR type milling chucks with adjustment bolts.
• Hold small diameter straight shank tools.
• Center-through coolant unavailable when used with TR chucks.
• Available in various diameters with detailed dimensions.

Collet Holders (EXH and ECH Types)

• EXH Type: Slim, high-balance design supporting 16° taper AR collets (DIN6499 / ISO15488), compatible with multiple coolant systems (center-through, side-through, tap, coolant tap), coolant pressure up to 20 MPa.
• ECH Type: Similar to EXH but with wider size range, additional coolant options, and special nuts (NA-R/SR) for high-speed rotation.
• Collets, nuts, wrenches, and adjust bolts sold separately.

SS Collet Holders

• Designed for straight collets; coolant through systems require removal or replacement of internal adjust bolts.
• High runout accuracy options (3μm to 8μm) for drills, end mills, and reamers.
• Integrated pull ring and thrust ring facilitate collet removal.
• Recommended tightening torque must be observed to avoid damage.

AR Collets

• 16° taper collets conforming to DIN6499 / ISO15488.
• Available in accuracy classes: A (8μm), AA (5μm), AAA (3μm, made to order).
• Wide size range from 0.3 mm to over 26 mm.
• Designed for easy mounting/removal with integrated pull and thrust rings.
• Recommended nut tightening torque specified.

Additional Tooling Components

• Arbors for face milling (FMA/FMB/FMC types) and side milling cutters (SCA type).
• Side lock holders (SLA/SLS types) and Morse taper holders (MTA type).
• MT drill sockets, Jacobs taper holders, and small collet holders for MC/DC machines.
• Pull studs and thermo grip chucks for secure tool holding and thermal compensation.

General Recommendations and Notes

• Collets, nuts, wrenches, and adjust bolts are sold separately and must be ordered together.
• Verify machine tool compatibility, especially dimensions and interference.
• Observe proper tightening torque to prevent damage.
• Confirm coolant pressure ratings and system compatibility for each component.
• High-speed applications require special nuts or components.

AR Collets and Variants Overview

1. Standard AR Collets (16° Taper)

• Conform to DIN6499 and ISO15488 standards.
• Used for drills, end mills, and reamers.
• Available in multiple sizes with detailed grasp ranges.
• Runout accuracy classes: A (8μm), AA (5μm), AAA (3μm, made to order).
• Odd-sized shanks accommodated by selecting next nominal size.

2. AR/OH Coolant Collets

• Patented slit design for liquid sealing, enabling coolant pressure up to 20 MPa.
• Grasp range 0.1 to 0.5 mm; designed for through-coolant drills fully inserted to rear.
• Not compatible with flat-face shank tools.
• Available in sizes AR11OH to AR40OH with detailed dimensions.

3. AR/C Coolant Collets

• Coolant grooves inside collet direct fluid to tool tip.
• Support 20 MPa coolant pressure; compatible with water-soluble and oil-based coolants.
• Improve chip evacuation, effective for deep-hole drilling with small drills lacking oil holes.
• Ordering requires coolant type and runout accuracy class specification.
• Similar tool insertion and sealing notes as AR/OH collets.

4. Tap Collets

• AR/GB Tap Collets: Square hole prevents slippage during synchronized tapping.
• AR/GH Coolant Tap Collets: Enhanced sealing for oil-hole taps, supporting high-pressure coolant and deep-hole tapping.
• Conform to JIS standards; consult manufacturer for ANSI, DIN, ISO standards.
• Available in sizes matching metric, pipe, and unified threads.

5. Arbors for Milling Cutters

• Face milling cutter arbors (Types A, B, C) for JIS B4113 and Sandvik T-MAX cutters.
• Side cutter arbors (SCA series) for JIS B4206 side milling cutters and metal slitting saws.
• Dimensions, shank types, and cutter diameters specified.
• Standard accessories include driving dogs and clamp bolts.

Critical Notes and Best Practices

• Specify runout accuracy class when ordering; default is A unless AAA requested.
• Ensure tool diameter matches collet inner diameter to prevent coolant leakage.
• Insert drills fully to rear of collet for proper sealing.
• Flat-face shank tools incompatible with coolant collets.
• Tap collets must match tap size and standard; consult for non-JIS standards.
• Coolant collets enhance tool life and chip removal by delivering high-pressure coolant directly to cutting edge.

Summary of Key Specifications

• Collet taper angle: 16°
• Runout accuracy: 3μm (AAA), 5μm (AA), 8μm (A)
• Coolant pressure rating: up to 20 MPa
• Grasp ranges vary by collet size and type.
• Arbor dimensions and compatibility detailed for various milling cutter standards.

Nuts and Collars

Clamp nuts and collars available in sizes H3: 3, 5, 7, 8, 10, 12 mm compatible with JIS standard cutters (side milling, carbide side milling, metal saws). Equivalent products may be used.

Additional Holders and Accessories

• Side Lock Holders (A and S types) support reliable machining but do not support through coolant; S type for ISO-3338 end mills with flat face shank.
• Morse Taper Holders (MTA type) allow use of Morse taper drills with different taper sizes.
• Jacobs Taper Holders facilitate drill chuck attachment; drill chucks (ALBRECHT) ordered separately.
• Small collet holders for MC/DC machines support drilling, reaming, end milling, and tapping; high-speed nuts recommended for high-speed rotation.
• Pull studs ensure secure holder draw into spindle; custom fabrication available.

Technical Data and Standards

Includes detailed dimensional data for holders, nuts, collets, pull studs, and shank shapes referencing JIS standards (e.g., JIS B6339-3) and MAS 403 specifications. Covers diameters, lengths, taper angles, and thread sizes.

Important Notes and Recommendations

• Side Lock Holders do not support through coolant.
• Drill chucks are not included with holders and must be ordered separately.
• Collet holders require separate ordering of collets, nut wrenches, and adjust bolts.
• High-speed nuts should be used for high-speed rotation applications.
• Custom holders and pull studs can be manufactured on request.

Contact and Sales Offices

Lists multiple sales offices and factories across Japan with addresses and contact information, including headquarters and regional offices in Tokyo, Nagoya, Osaka, Hiroshima, and others.