Can I contact factories directly on CNFX?

CNFX is an open directory. Each factory profile provides direct contact information.

Punch Holders Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

Punch holders are specialized clamping devices installed in the rotating turret of CNC punch presses. They precisely position and secure punch tools during metal forming operations, ensuring consistent alignment, depth control, and tool stability during high-speed punching cycles. These components interface between the punch press ram and the punch tool, transmitting force while maintaining tool orientation.

Working Principle

Punch holders operate by mechanically clamping punch tools using hydraulic, pneumatic, or mechanical locking mechanisms. During operation, the rotating turret positions the correct punch holder under the ram. The ram descends, transmitting force through the holder to the punch, which penetrates the workpiece. The holder maintains precise alignment and prevents tool rotation or displacement during impact.

Materials

High-strength alloy steel (AISI 4140/4340), hardened to 45-55 HRC; wear-resistant surfaces with chrome plating or nitriding; corrosion-resistant variants use stainless steel (17-4PH) for specific applications.

Technical Parameters

Holder Type Standard/Quick-Change
Clamping Force 15-50 kN
Weight Capacity 5-25 kg
Tool Shank Diameter 20-50 mm
Operating Temperature -10°C to 80°C
Maximum Punch Diameter 100 mm
Height Adjustment Range ±2 mm

Standards

ISO 9001:2015, DIN 55201, ISO 12164-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Punch Holders.

Parent Products

This component is used in the following industrial products

Rotating Turret

A rotating component in an industrial rotary tablet press that holds multiple punch and die sets, enabling continuous tablet production through sequential compression stations.

View Product Details

Engineering Analysis

Risks & Mitigation

Tool ejection during operation
Misalignment causing poor hole quality
Wear leading to dimensional inaccuracy
Fatigue failure under cyclic loading

FMEA Triads

Trigger: Insufficient clamping force
Failure: Tool slippage or ejection
Mitigation: Regular torque verification, use of force monitoring systems

Trigger: Wear on clamping surfaces
Failure: Reduced holding precision
Mitigation: Periodic surface inspection, scheduled replacement

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.01 mm concentricity, ±0.02 mm perpendicularity

Test Method

Coordinate measuring machine (CMM) verification, laser alignment testing, functional load testing

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Related Components

Machine Frame

The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.

pH Sensor Assembly

Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications

Load Cell Assembly

Precision load cell assembly for automated powder dispensing systems

Dust Collection Port

A dust collection port is a critical component in automated powder dispensing systems that captures airborne particulates at the source to maintain clean air quality and prevent cross-contamination.

Frequently Asked Questions

What maintenance is required for punch holders?

Regular inspection for wear, cleaning of clamping surfaces, lubrication of adjustment mechanisms, and verification of alignment accuracy every 500 operating hours.

Can punch holders be used with different punch press brands?

While some holders are brand-specific, many follow standardized interfaces (ISO/DIN) allowing cross-compatibility with proper adapter systems.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Punch Holders