Holder Body: Maximum Tool Diameter 1-25 mm

Component Specifications

Definition

The Holder Body is the primary structural element in capillary or wedge tool holder systems, designed to provide rigid support and precise alignment for cutting tools during high-precision machining processes. It features internal channels for coolant delivery, mounting interfaces for tool retention mechanisms, and precision-ground surfaces for accurate tool positioning relative to machine spindle axes.

Working Principle

The Holder Body operates on mechanical clamping principles where internal tapered surfaces or capillary channels create uniform radial pressure to secure cutting tools. When torque is applied to retention screws or wedges, the body's elastic deformation generates precise gripping force that maintains tool concentricity and prevents rotational slippage during machining operations.

Materials

High-strength alloy steel (AISI 4140/4340), case-hardened to 45-50 HRC with surface treatments including nitriding or TiN coating for wear resistance. Alternative materials include hardened tool steel (D2, M2) for specialized applications.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Shank Type	HSK, CAT, BT
Maximum RPM	15,000-30,000
Clamping Force	2,000-8,000 N
Tool Interface	Capillary/Wedge clamping
Coolant Channels	2-4 internal passages
Runout Tolerance	< 0.003 mm
Maximum Tool Diameter	1-25 mm
Operating Temperature	-20°C to 150°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 7388, DIN 69893, ISO 12164, DIN 69871

Parent Products

This component is used in the following industrial products

Capillary/Wedge Tool Holder

A precision component in semiconductor bonding equipment that securely holds and positions capillary or wedge bonding tools during wire bonding processes.

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Engineering Analysis

Risks & Mitigation

Tool slippage during high-torque operations
Coolant channel blockage
Fatigue cracking in high-cycle applications
Thermal expansion affecting precision
Corrosion in coolant environments

FMEA Triads

Trigger: Insufficient clamping force due to worn capillary channels
Failure: Tool slippage causing dimensional inaccuracies
Mitigation: Implement regular inspection protocols and replace components showing >5% wear on clamping surfaces

Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to catastrophic failure
Mitigation: Use ultrasonic testing every 500 operating hours and enforce replacement after 10^7 cycles

Trigger: Coolant contamination causing corrosion
Failure: Reduced structural integrity and precision loss
Mitigation: Implement filtration systems and use corrosion-resistant coatings on internal surfaces

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 2768-mK, concentricity within 0.003 mm TIR, surface finish Ra 0.4 μm on critical interfaces

Test Method

Laser interferometry for runout measurement, hydraulic pressure testing for clamping systems, fatigue testing per ISO 12107, material verification per ASTM A370

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Holder Body

Manufacturer profiles associated with Holder Body.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of the Holder Body in tool holding systems?

The Holder Body provides structural integrity and precise alignment for cutting tools, ensuring minimal runout and maximum stability during high-speed machining operations.

How does capillary clamping differ from traditional collet systems?

Capillary clamping uses hydraulic pressure through precisely engineered channels to create uniform radial force, offering better concentricity and higher gripping force compared to mechanical collet systems.

What maintenance is required for Holder Body components?

Regular inspection for wear on clamping surfaces, cleaning of coolant channels, verification of runout tolerance, and periodic re-torquing of retention components according to manufacturer specifications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Holder Body