Clamping Bar: Load Capacity 500-2000 N/cm, Width 30-80 mm

Component Specifications

Definition

A clamping bar is a critical mechanical component designed to apply uniform pressure and secure blades within a blade holder assembly. It ensures precise blade positioning, prevents movement during high-speed operations, and maintains cutting accuracy in industrial machining applications. Typically featuring threaded holes, mounting surfaces, and pressure distribution mechanisms, it interfaces with hydraulic or mechanical clamping systems.

Working Principle

The clamping bar operates by transmitting force from clamping mechanisms (hydraulic, pneumatic, or mechanical) through its structure to create uniform pressure along the blade's contact surface. This pressure generates sufficient friction to immobilize the blade against the holder, while precision-ground surfaces ensure proper alignment and load distribution.

Materials

High-strength alloy steel (e.g., AISI 4140, 4340) or tool steel (D2, A2) with hardness 45-55 HRC; corrosion-resistant variants use stainless steel (304, 316) or surface treatments (nitriding, chrome plating).

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	30-80 mm
Length	150-500 mm
Thickness	15-40 mm
Load Capacity	500-2000 N/cm
Surface Finish	Ra 0.8-1.6 μm
Flatness Tolerance	≤0.02 mm
Mounting Hole Pattern	M8-M16 threaded

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 12164-1, DIN 69893

Parent Products

This component is used in the following industrial products

Blade Holder

A mechanical component designed to securely hold and position a blade within a doctoring system.

View Product Details

Engineering Analysis

Risks & Mitigation

Fatigue failure from cyclic loading
Warpage due to uneven thermal expansion
Thread stripping in mounting holes
Insufficient clamping force causing blade movement

FMEA Triads

Trigger: Material fatigue from repeated clamping cycles
Failure: Crack propagation leading to bar fracture
Mitigation: Implement regular inspection schedules, use materials with high fatigue strength, and apply non-destructive testing (ultrasonic or dye penetrant)

Trigger: Improper torque application during installation
Failure: Thread damage or uneven pressure distribution
Mitigation: Use calibrated torque wrenches, follow manufacturer specifications, and train operators on proper installation procedures

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 2768-m, dimensional tolerances ±0.05 mm

Test Method

Dimensional verification with CMM, hardness testing per ASTM E18, load testing with hydraulic pressure gauges

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.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Clamping Bar

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shanghai Wan Hui Machinery Co., Ltd.

Shanghai, CN

Also makes: Pressure Relief Valve, Flow Meter, Heat Sealing Jaw and 1 more

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Clamping-Bar”
View source page ↗ whmcn.com · recorded 2026-09-05

View profile Send enquiry

Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.

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

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.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

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

Frequently Asked Questions

What is the primary function of a clamping bar in a blade holder?

To securely fasten cutting blades while maintaining precise alignment and distributing clamping force evenly to prevent blade slippage during machining operations.

How do I select the right material for a clamping bar?

Choose based on application: alloy steel for general machining, tool steel for high-wear environments, or stainless steel with coatings for corrosive conditions, considering hardness and fatigue resistance requirements.

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 Bar