Shank: Weight Capacity Up to 5000 kg, Length Range 50-200 mm

Component Specifications

Definition

The shank is a critical cylindrical component in punch tool assemblies that provides the mechanical interface between the punch tool and the press machine ram. It transmits force from the press to the punch tip while maintaining precise alignment and concentricity during high-speed stamping operations. Engineered to withstand cyclic loading and prevent deflection, it ensures consistent part quality in metal forming applications.

Working Principle

The shank functions as a force transmission element that converts the vertical motion of the press ram into precise punching action. It maintains rigid connection through interference fit or clamping mechanisms while allowing for quick tool changes. The precision-ground surface ensures minimal clearance with the press holder to prevent lateral movement and vibration during operation.

Materials

Typically manufactured from high-grade alloy steels such as AISI 4140, D2, or S7 tool steel, heat-treated to HRC 45-52 for optimal strength and wear resistance. Surface treatments may include nitriding or chrome plating for enhanced durability.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Hardness	HRC 48-52
Length Range	50-200 mm
Concentricity	0.005 mm TIR
Surface Finish	Ra 0.4 μm max
Weight Capacity	Up to 5000 kg
Diameter Tolerance	±0.002 mm

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 8020, DIN 9861, JIS B 5012

Parent Products

This component is used in the following industrial products

Punch Tool

A precision tool that creates holes or shapes in materials through hydraulic force.

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Ripper

A heavy-duty attachment mounted on the rear of a bulldozer designed to break up and loosen compacted soil, rock, or pavement.

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Engineering Analysis

Risks & Mitigation

Fatigue failure from cyclic loading
Wear-induced dimensional inaccuracy
Improper installation causing misalignment
Corrosion in humid environments

FMEA Triads

Trigger: Excessive clearance between shank and holder
Failure: Reduced punching accuracy and increased part rejection rate
Mitigation: Implement regular dimensional checks and use precision gauges for installation verification

Trigger: Material fatigue from high-cycle operations
Failure: Catastrophic fracture during operation
Mitigation: Apply surface treatments and establish preventive replacement schedules based on cycle counts

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 2768-mK, dimensional tolerances per ISO 286

Test Method

CMM measurement for dimensional accuracy, surface roughness testing per ISO 4287, hardness testing per ISO 6508

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

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Manufacturers of Shank

Manufacturer profiles associated with Shank.

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Related Components

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

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Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What is the difference between ISO and DIN shank standards?

ISO shanks typically have metric dimensions with specific taper angles, while DIN shanks follow German standards with different tolerance classes. The key difference lies in dimensional specifications and mounting interfaces.

How often should punch shanks be inspected for wear?

Shanks should be visually inspected daily for surface damage and measured for dimensional accuracy every 500,000 cycles or monthly, whichever comes first, in high-volume production environments.

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.

Shank