Editorial Technical Reference

Clamping Jaws / Vise

This page explains how Clamping Jaws / Vise 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

Mechanical clamping components that secure profiles or workpieces in a clamping system

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Clamping Jaws / Vise

Definition
Clamping jaws or vises are essential components within a profile clamping system, designed to firmly hold and secure profiles, workpieces, or materials during machining, assembly, or processing operations. They provide precise positioning and prevent movement through mechanical force application. These components are typically used in industrial settings where stable and repeatable clamping is required, such as in CNC machining, welding fixtures, or assembly lines. The jaws are available in various configurations to accommodate different workpiece shapes and sizes, and they can be actuated manually, pneumatically, or hydraulically depending on the system design. The clamping range, which indicates the maximum workpiece width or diameter that can be clamped, typically spans from 0 to 150 mm. The clamping force, which is the force applied to the workpiece, ranges from 5 to 30 kN, with higher forces suitable for heavy machining operations. Jaw width, affecting stability, ranges from 80 to 200 mm, while the maximum jaw opening when fully open is up to 200 mm. Repeatability, which ensures consistency of clamping position across cycles, is within ±0.02 mm. Parallelism tolerance for jaw surfaces is 0.02/100 mm per ISO 1101. Operating temperature range for reliable operation is -10 to 60°C. Materials commonly used include hardened steel, tool steel, and aluminum alloy, with a specific alloy steel grade 40Cr per GB/T 3077 for jaws, hardened to HRC 45–55 per ISO 6508 for wear resistance. Weight varies from 5 to 25 kg depending on size and material. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier.
Working Principle
The clamping jaw operates by applying mechanical force through screw mechanisms, hydraulic pressure, or pneumatic systems to move opposing jaw surfaces toward each other. This action creates friction and pressure that securely grips the workpiece between them. The force is transmitted evenly across the jaw surfaces to prevent deformation or damage to the workpiece. The clamping force can be adjusted to suit the material and machining requirements, ensuring a firm hold without over-clamping. The design of the jaws, including their width and surface texture, contributes to the stability and repeatability of the clamping process. Proper alignment and parallel surfaces are critical to avoid workpiece movement during operations.
Common Materials
Hardened Steel, Tool Steel, Aluminum Alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Clamping Range0–150 mmMaximum workpiece width or diameter that can be clamped
Clamping Force5–30 kNForce applied to the workpiece; higher force for heavy machining
Jaw Width80–200 mmWidth of the clamping jaws; affects stability
Jaw Opening0–200 mmMaximum distance between jaws when fully open
Repeatability±0.02 mmConsistency of clamping position across cycles
Parallelism0.02/100 mmTolerance for jaw surface parallelismISO 1101
Operating Temperature-10–60 °CRange for reliable operation; outside may affect performance
Material40CrAlloy steel for jaws; hardened for wear resistanceGB/T 3077
HardnessHRC 45–55Surface hardness of jaws for durabilityISO 6508
Weight5–25 kgDepends on size and material; affects handling

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
  • Fixed Jaw Part
    Stationary clamping surface that provides reference point
    Material: Hardened Steel
  • Movable Jaw Part
    Adjustable clamping surface that applies pressure
    Material: Hardened Steel
  • Lead Screw Part
    Mechanism that moves the movable jaw via rotational force
    Material: Alloy Steel
  • Jaw Inserts Part
    Replaceable contact surfaces with different profiles or materials
    Material: Carbide or Tool Steel
  • Hydraulic or Pneumatic Pressure Unit Optional
    Supplies the clamping force on power-clamped vises, in place of turning the lead screw by hand.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max clamping force: 5-50 kN depending on size and design
other spec: Surface hardness: 45-65 HRC, Jaw opening range: 50-300 mm typical
temperature: -10°C to +60°C
Media Compatibility
✓ Steel profiles and workpieces ✓ Aluminum extrusions ✓ Plastic/composite materials
Unsuitable: Highly corrosive chemical environments without protective coatings
Sizing Data Required
  • Workpiece dimensions (width, height, length)
  • Required clamping force for application
  • Profile geometry and contact surface requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wear and loss of clamping force
Cause: Repeated clamping cycles causing abrasive wear on jaw surfaces, leading to reduced friction and insufficient grip strength
Fatigue cracking in jaw body
Cause: Cyclic loading from repeated clamping operations creating stress concentrations at jaw corners or mounting points, eventually leading to material fatigue and fracture
Maintenance Indicators
  • Visible scoring, galling, or excessive wear marks on jaw contact surfaces
  • Audible clicking or slipping sounds during clamping operations indicating loss of grip
Engineering Tips
  • Implement regular jaw surface inspection and cleaning protocols to remove debris that accelerates abrasive wear
  • Apply proper lubrication to jaw sliding mechanisms and ensure even pressure distribution during clamping operations

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 B5.8-1972 - Machine Vises DIN 6319 - Machine Vises

Quoted from the published standard.

Manufacturing Precision
  • Parallelism of Jaws: +/-0.02 mm
  • Flatness of Base: 0.05 mm
Quality Inspection
  • Hardness Testing (Rockwell C Scale)
  • Dimensional Accuracy Verification with CMM

Manufacturers of Clamping Jaws / Vise

Manufacturer profiles associated with Clamping Jaws / Vise.

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Frequently Asked Questions

What materials are available for clamping jaws?

According to the directory, clamping jaws can be made from hardened steel, tool steel, or aluminum alloy. The specific material grade listed is 40Cr alloy steel per GB/T 3077, with a hardness of HRC 45–55 per ISO 6508. Always confirm the material and hardness with the supplier for your application.

What is the clamping range of these jaws?

The clamping range, which is the maximum workpiece width or diameter that can be clamped, is listed as 0–150 mm. This is a reference range; the actual range depends on the specific model and configuration. Verify with the manufacturer.

How is clamping force specified?

Clamping force is the force applied to the workpiece and is listed as 5–30 kN. Higher forces are suitable for heavy machining. The required force depends on the workpiece material and operation. Confirm the appropriate force for your use case with the supplier.

What standards apply to these components?

The directory lists ISO 1101 for parallelism tolerance and ISO 6508 for hardness testing. Additionally, material grade 40Cr is referenced per GB/T 3077. These standards are for verification purposes; they do not guarantee certification. Always check compliance with the manufacturer.

Data Basis

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

Preliminary Technical Classification
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