Editorial Technical Reference

Blade Holder/Assembly

This page explains how Blade Holder/Assembly is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A mechanical assembly that securely positions and holds the cutting blade within a precision shear system.

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Product Specifications

Technical details and manufacturing context for Blade Holder/Assembly

Definition
The blade holder/assembly is a critical component of precision shear equipment that provides precise alignment, secure clamping, and stable support for the cutting blade. It ensures proper blade positioning relative to the material being cut and maintains consistent cutting performance throughout operation. The assembly is designed to accommodate blades within a width range of 100–300 mm and a thickness range of 10–25 mm, with a clamping force of 50–120 kN to ensure stability during cutting. Positioning accuracy is maintained at ±0.05 mm, which is critical for consistent cut quality. The operating pressure range is 1.0–1.6 MPa, and the operating temperature range is -10 to 60°C. The material grade is 42CrMo4 (DIN EN 10083), with a surface hardness of HRC 45–52 for wear resistance. The weight varies from 15 to 40 kg depending on size and configuration. The assembly is rated IP54–IP65 for protection against dust and water jets. Materials on file include tool steel, hardened steel, and precision-machined aluminum alloy. The working principle involves mechanical clamping mechanisms such as bolts, screws, or wedges to secure the blade, with alignment features like precision-machined surfaces, guide rails, or registration pins for accurate positioning. The assembly transfers cutting forces to the shear's main structure while allowing for blade replacement and adjustment. For selection, verify model-specific dimensions, clamping force, and compatibility with your shear system. Confirm standards and performance values with the legal manufacturer or supplier, as these are reference ranges. Maintenance signals include loosening of clamping elements, visible wear on alignment surfaces, or reduced cutting accuracy. Failure boundaries include excessive vibration, blade slippage, or misalignment beyond tolerance.
Working Principle
The blade holder assembly uses mechanical clamping mechanisms, such as bolts, screws, or wedges, to secure the blade in place. It may incorporate alignment features like precision-machined surfaces, guide rails, or registration pins to ensure accurate blade positioning. The assembly transfers cutting forces from the blade to the shear's main structure while allowing for blade replacement and adjustment.
Common Materials
Tool steel, Hardened steel, Precision-machined aluminum alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Blade Width Range100–300 mmStandard widths for common shear models
Blade Thickness Range10–25 mmThicker blades for heavy-duty cutting
Clamping Force50–120 kNEnsures blade stability during cutting
Positioning Accuracy±0.05 mmCritical for consistent cut quality
Operating Temperature-10–60 °CExceeding range may affect material properties
Material Grade42CrMo4High-strength alloy steel for durabilityDIN EN 10083
Surface HardnessHRC 45–52Wear resistance for extended blade life
Weight15–40 kgDepends on size and configuration

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

Components / BOM
  • Clamping Plate Part
    Applies pressure to secure the blade against the base plate
    Material: Hardened steel
  • Base Plate Part
    Provides mounting surface and alignment reference for the blade
    Material: Tool steel
  • Clamping Bolts/Screws Part
    Apply clamping force to secure the blade in position
    Material: High-strength steel
  • Alignment Pins/Guides Part
    Ensure precise positioning of the blade relative to cutting mechanism
    Material: Hardened steel

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 MPa
other spec: Blade thickness tolerance: ±0.01 mm, Vibration limit: <5 g RMS
temperature: -20°C to 150°C
Media Compatibility
✓ Sheet metal (steel/aluminum) ✓ Plastic films/polymers ✓ Composite materials
Unsuitable: Abrasive slurries with >30% solids concentration
Sizing Data Required
  • Blade dimensions (length x width x thickness)
  • Required cutting force/shear capacity
  • Mounting interface specifications

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic loading from blade vibration and operational stresses leading to crack initiation at stress concentrators like bolt holes or weld joints.
Corrosion-induced failure
Cause: Exposure to moisture, chemicals, or harsh environments causing material degradation, pitting, or stress corrosion cracking, especially in dissimilar metal assemblies.
Maintenance Indicators
  • Excessive vibration or unusual audible harmonics during operation indicating imbalance or loosening
  • Visible cracks, corrosion pits, or deformation on holder surfaces or mounting points
Engineering Tips
  • Implement regular torque checks and vibration analysis to detect loosening or imbalance before catastrophic failure
  • Apply protective coatings and ensure proper material selection for environmental compatibility, including cathodic protection if applicable

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI B94.50 - Specifications for Cutting Tools DIN 8580 - Manufacturing Processes

Quoted from the published standard.

Manufacturing Precision
  • Bore Diameter: +/-0.01mm
  • Surface Flatness: 0.05mm
Quality Inspection
  • Dimensional Verification with CMM
  • Hardness Testing (Rockwell C Scale)
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 Blade Holder/Assembly

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Frequently Asked Questions

What is the typical blade width range for this blade holder?

The blade width range is 100–300 mm, but you must verify the exact range for your specific shear model with the manufacturer.

What clamping force does the assembly provide?

The clamping force is 50–120 kN, ensuring blade stability during cutting. Confirm the required force for your application.

What is the positioning accuracy of the blade holder?

The positioning accuracy is ±0.05 mm, critical for consistent cut quality. Verify this tolerance for your model.

What materials are used in the blade holder?

Materials on file include tool steel, hardened steel, and precision-machined aluminum alloy. Confirm the specific material for your unit.

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

Related equipment

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Precision Shear
View system integration details

Industrial Ecosystem & Supply Chain Structure

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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.

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 · Page last updated 12 October 2026

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