Spring Set: Temperature Range -40°C to +150°C

Component Specifications

Definition

A spring set in pressure switch applications consists of multiple springs arranged in series or parallel configurations to achieve specific force-displacement characteristics. These components convert pressure changes into mechanical movement through calibrated spring forces, enabling the switch to open or close electrical contacts at predetermined pressure thresholds. The set typically includes main actuation springs, calibration springs, and sometimes auxiliary springs for hysteresis adjustment.

Working Principle

The spring set operates on Hooke's Law (F=kx), where applied pressure creates force on a diaphragm or piston, compressing or extending the springs. When the spring force overcomes the calibrated threshold, it triggers mechanical linkage to activate electrical contacts. Multiple springs allow for fine-tuning of actuation points, deadband adjustment, and compensation for temperature variations.

Materials

Spring steel (SAE 1074/1075, EN 10270-1), stainless steel (AISI 302/316, 17-7PH), Inconel (for high-temperature applications), beryllium copper (for non-magnetic requirements). Surface treatments: zinc plating, powder coating, passivation for corrosion resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Cycle Life	>1 million cycles
Hysteresis	2-15% of set point
Spring Rate	2-50 N/mm
Temperature Range	-40°C to +150°C
Set Point Accuracy	±1.5% of full scale
Operating Force Range	5-500 N

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, ASTM A228

Parent Products

This component is used in the following industrial products

Pressure Switch

A safety and control device that monitors air pressure in an industrial compressor system and automatically activates or deactivates the compressor motor based on preset pressure thresholds.

View Product Details

Engineering Analysis

Risks & Mitigation

Spring fatigue failure
Corrosion in humid environments
Temperature-induced calibration drift
Mechanical binding in contaminated conditions

FMEA Triads

Trigger: Material fatigue from cyclic loading
Failure: Spring fracture leading to loss of actuation
Mitigation: Use fatigue-resistant materials, design within endurance limits, implement regular maintenance checks

Trigger: Corrosion from environmental exposure
Failure: Increased friction and altered spring characteristics
Mitigation: Apply protective coatings, use corrosion-resistant materials, ensure proper sealing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Force tolerance ±5%, dimensional tolerance ±0.1mm

Test Method

ISO 10243 for spring testing, pressure cycling tests per IEC 60947-5-1

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 Spring Set

Manufacturer profiles associated with Spring Set.

Sourcing Spring Set from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

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

Why do pressure switches use multiple springs instead of single springs?

Multiple springs allow precise calibration of actuation points, adjustable hysteresis, compensation for temperature effects, and better control over the force-displacement curve compared to single springs.

How does spring material affect pressure switch performance?

Material determines temperature stability, corrosion resistance, fatigue life, and magnetic properties. Stainless steel offers good corrosion resistance, while spring steel provides higher strength for standard applications.

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.

Spring Set