Dual-pitch Compression Springs | Precision Stainless Steel OEM Springs
Dual-pitch Compression Springs are specially designed helical compression springs with two different coil pitches in a single spring body. By combining a tighter coil section with a wider coil section, these springs provide progressive load characteristics, improved energy absorption, and optimized compression performance compared with conventional uniform-pitch compression springs.
METS specializes in manufacturing precision dual-pitch compression springs for OEM and industrial applications, using high-quality stainless steel, carbon steel, alloy steel, and other spring materials. Our advanced CNC spring coiling equipment, precision forming processes, and strict quality control ensure stable spring force, accurate dimensions, and reliable performance for demanding applications.
Dual-pitch compression springs are widely used where variable force, controlled deflection, vibration reduction, and space optimization are required. The unique pitch design allows the spring to respond differently under different compression stages, providing a softer initial load and increased resistance during further compression.
With flexible OEM/ODM capabilities, METS can customize wire diameter, spring outer diameter, free length, coil pitch, spring rate, end configuration, surface treatment, and material according to customer drawings or application requirements. Our springs are suitable for automotive components, industrial machinery, electrical equipment, medical devices, consumer products, and precision mechanical systems.
Key Features
Progressive Load Performance
The dual-pitch structure provides variable spring rates, allowing smooth initial compression and stronger resistance at higher loads.
Precision Manufacturing
Produced with advanced CNC spring machines to achieve accurate dimensions, consistent spring force, and reliable repeatability.
Premium Material Options
Available in stainless steel, carbon steel, alloy steel, and other high-performance materials for different environments and load requirements.
Customized OEM Solutions
Custom designs available based on customer drawings, samples, CAD files, or specific performance requirements.
Excellent Fatigue Resistance
Optimized coil design improves durability and supports long service life under repeated compression cycles.
Corrosion Resistance
Stainless steel options such as SUS304 and SUS316 provide excellent corrosion resistance for harsh environments.
Space-Saving Design
The variable pitch structure helps achieve required spring performance within limited installation spaces.
Technical Specifications
| Parameter |
Specification |
| Product Type |
Dual-pitch Compression Spring |
| Material Options |
Stainless Steel SUS304, SUS316, SUS301, Carbon Steel, Alloy Steel, Music Wire |
| Wire Diameter |
0.1 mm - 60 mm |
| Outer Diameter |
Customized according to requirements |
| Inner Diameter |
Customized according to design |
| Free Length |
Customized |
| Coil Pitch |
Dual Pitch / Variable Pitch Design |
| Spring Rate |
Customized according to load requirements |
| Load Capacity |
Customized from light load to heavy duty applications |
| End Type |
Closed & Ground, Open Ends, Custom Ends |
| Surface Treatment |
Polishing, Passivation, Electroplating, Coating, Heat Treatment |
| Manufacturing Process |
CNC Spring Coiling, Grinding, Heat Treatment, Surface Finishing |
| Tolerance |
Up to ±0.01 mm depending on design requirements |
| Quality Standard |
ISO Quality Control System |
| OEM Capability |
Custom Design and Mass Production Available |
Industry Applications
Automotive Industry
Dual-pitch compression springs are used in automotive components requiring progressive force control, vibration resistance, and long-term durability, including suspension systems, engine components, seat mechanisms, and mechanical assemblies.
Industrial Machinery
Suitable for industrial equipment, automation systems, hydraulic and pneumatic devices, tooling machines, and mechanical actuators where stable compression performance is required.
Electrical and Electronic Equipment
Used in electrical switches, connectors, circuit protection devices, and precision electronic mechanisms requiring reliable spring force and compact design.
Medical Equipment
Applied in medical instruments and devices requiring precise movement control, consistent loading force, and corrosion-resistant materials.
Consumer Products
Used in household appliances, furniture mechanisms, sporting equipment, and daily-use products where smooth operation and durability are important.
Aerospace and High-Precision Equipment
Suitable for demanding applications requiring lightweight design, accurate spring performance, and excellent fatigue resistance.
Customization Services
METS provides complete OEM and ODM customization services for dual-pitch compression springs. Our engineering team works closely with customers to develop springs that meet specific mechanical performance requirements.
Custom Options Include:
- Material Selection - Stainless Steel SUS304 / SUS316, Carbon Steel, Alloy Steel, Music Wire, Special spring alloys
- Dimensional Customization - Wire diameter, Spring outer diameter, Inner diameter, Free length, Coil pitch, Number of active coils
- Performance Customization - Spring rate, Compression force, Working stroke, Fatigue life, Maximum compression height
- Surface Treatment - Polishing, Passivation, Zinc plating, Nickel plating, Heat treatment
- OEM Manufacturing - Prototype development, Small batch production, Large volume production, Drawing-based manufacturing
Customers can provide 2D drawings, 3D CAD files, samples, or technical specifications, and our engineers will provide professional spring design solutions.
Support and Services
Engineering Support
Our technical team provides professional assistance in spring design optimization, material selection, and performance improvement.
Prototype Development
Fast prototype production helps customers verify dimensions, load performance, and installation compatibility before mass production.
Quality Inspection
Each batch is inspected through strict quality control processes, including dimensional inspection, spring force testing, load testing, surface inspection, and material verification.
OEM & Mass Production
METS supports customized production from prototypes to high-volume orders with stable quality and competitive manufacturing capability.
Global Export Service
We provide professional international shipping support, export documentation, and reliable delivery solutions for customers worldwide.
Packing and Shipping
Packaging
To ensure product safety during transportation, dual-pitch compression springs are carefully packed using PE bags for individual protection, cartons for standard packaging, wooden cases for large-volume shipments, and customized packaging according to customer requirements.
Shipping Methods
Available shipping options include express shipping (DHL, FedEx, UPS), air freight, sea freight, and customized logistics solutions.
Shipping Advantages
- Secure packaging to prevent deformation
- Export-standard protection
- Fast delivery coordination
- Full shipment tracking support
Frequently Asked Questions
Q1: What is a dual-pitch compression spring?
A dual-pitch compression spring is a compression spring designed with two different coil pitches in one spring. This structure provides progressive load performance and improved energy absorption compared with standard compression springs.
Q2: What materials are available for dual-pitch compression springs?
We manufacture dual-pitch compression springs using stainless steel SUS304, SUS316, SUS301, carbon steel, alloy steel, music wire, and other customized materials.
Q3: Can you manufacture custom dual-pitch compression springs?
Yes. METS provides OEM and ODM spring manufacturing services. We can customize dimensions, materials, spring rates, loads, and surface treatments according to customer requirements.
Q4: What wire diameter range can you produce?
Our spring manufacturing capability supports wire diameters from 0.1 mm to 60 mm, depending on spring design and application requirements.
Q5: Do you provide samples before mass production?
Yes. We can provide prototypes or samples for testing and approval before starting full production.
