Clamping Arms: Weight Capacity 1-100 kg, Repeatability ±0.01 mm

Component Specifications

Definition

Clamping arms are precision-engineered components integrated into assembly fixtures to apply controlled clamping force on workpieces, ensuring stability and accurate positioning during assembly, machining, or testing operations. They typically consist of rigid arms with adjustable clamping mechanisms that interface with the workpiece surface.

Working Principle

Clamping arms operate through mechanical leverage or pneumatic/hydraulic actuation to apply clamping force. When activated, the arm moves to contact the workpiece, creating friction and pressure that prevents movement. Force is distributed through the arm structure to minimize deformation while maintaining secure holding throughout the manufacturing process.

Materials

Typically manufactured from high-strength steel alloys (AISI 4140, 4340), aluminum alloys (6061-T6, 7075-T6), or engineered polymers for specific applications. Surface treatments include hard chrome plating, nitriding, or powder coating for wear resistance and corrosion protection.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Repeatability	±0.01 mm
Stroke Length	10-200 mm
Clamping Force	50-5000 N (adjustable)
Weight Capacity	1-100 kg
Temperature Range	-20°C to 120°C
Operating Pressure	0.4-0.8 MPa (pneumatic)

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 12100, ISO 13849-1, DIN 5510, DIN 8580

Parent Products

This component is used in the following industrial products

Assembly Fixture

Specialized tooling device used to precisely position and secure vehicle components during assembly operations.

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Profile Lifting Attachment

Specialized crane attachment designed for lifting and handling structural profiles, beams, and similar elongated metal sections.

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Engineering Analysis

Risks & Mitigation

Workpiece damage from excessive force
Inconsistent clamping leading to positioning errors
Mechanical failure due to fatigue
Safety hazards during operation
Contamination affecting clamping surfaces

FMEA Triads

Trigger: Wear on contact surfaces
Failure: Reduced clamping force and workpiece slippage
Mitigation: Regular inspection and replacement of wear pads, use of hardened contact surfaces

Trigger: Seal failure in pneumatic/hydraulic systems
Failure: Loss of clamping pressure and inconsistent performance
Mitigation: Preventive maintenance schedule, use of high-quality seals, monitoring of pressure systems

Trigger: Misalignment during installation
Failure: Uneven force distribution and workpiece deformation
Mitigation: Precision alignment during installation, use of alignment fixtures, regular verification checks

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Positional tolerance ±0.05 mm, force variation ±5% of set value

Test Method

Force measurement using load cells, positional accuracy verification with CMM, cycle testing for durability, safety testing per ISO 12100

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 Clamping Arms

Manufacturer profiles associated with Clamping Arms.

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Frequently Asked Questions

What are the main types of clamping arms?

Main types include mechanical toggle clamps, pneumatic clamping arms, hydraulic clamping arms, and manual clamping arms, each suited for different force requirements and automation levels.

How do I select the right clamping arm for my application?

Consider workpiece weight and size, required clamping force, cycle time, available power source (pneumatic, hydraulic, manual), environmental conditions, and precision requirements.

What maintenance do clamping arms require?

Regular lubrication of moving parts, inspection for wear on contact surfaces, checking of pneumatic/hydraulic seals, verification of clamping force calibration, and cleaning to prevent contamination buildup.

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.

Clamping Arms