Counterbalance Spring (optional): Stroke Length 200-800 mm

Component Specifications

Definition

A mechanical spring component designed for extraction hoods and arms that counteracts gravitational forces, allowing smooth vertical movement and stable positioning of the extraction system. It provides adjustable tension to balance varying loads and maintain optimal operational height without external power.

Working Principle

Works on Hooke's Law (F = kx) where spring force is proportional to displacement. When the extraction hood/arm is raised, the spring compresses/stretches to store potential energy, releasing it to counteract weight during lowering, ensuring controlled motion and reducing operator effort.

Materials

High-carbon steel (SAE 1070/1095) or stainless steel (AISI 302/316) for corrosion resistance; optional coatings include zinc plating or powder coating.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Lifespan	>100,000 cycles
Spring Rate	10-50 N/mm
Maximum Load	50-200 kg
Stroke Length	200-800 mm
Operating Temperature	-20°C to 120°C

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 10243, DIN 2095

Parent Products

This component is used in the following industrial products

Extraction Hood/Arm

A flexible or fixed component that captures and directs fumes, vapors, or particulates at their source within a fume extraction system.

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Engineering Analysis

Risks & Mitigation

Spring fatigue leading to sudden failure
Improper tension causing unstable hood movement
Corrosion in humid environments

FMEA Triads

Trigger: Material fatigue from cyclic loading
Failure: Spring fracture or loss of tension
Mitigation: Regular inspection and replacement per cycle limits; use springs with fatigue-rated materials.

Trigger: Incorrect installation or tension setting
Failure: Hood/arm drops or rises uncontrollably
Mitigation: Follow installation manuals; use calibrated tools for tension adjustment.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% on spring rate, ±2 mm on dimensions

Test Method

Load-deflection testing per ISO 10243; fatigue testing to 100,000 cycles.

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 Counterbalance Spring (optional)

Manufacturer profiles associated with Counterbalance Spring (optional).

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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

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Frequently Asked Questions

When is a counterbalance spring necessary for an extraction hood/arm?

It is recommended for hoods/arms over 20 kg or in applications requiring frequent height adjustments to reduce operator fatigue and ensure precise positioning.

How do I adjust the tension on a counterbalance spring?

Adjustment is typically via a tensioning mechanism (e.g., threaded rod or cam), following manufacturer guidelines to match the load without over-tensioning.

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.

Counterbalance Spring (optional)