info@snmhardware.com 008618965075392
Custom Springs Manufacturer · Precision Coil Springs · Stamping & Formed Components
✓ Works from drawings, samples, or application specs
✓ Engineering input on manufacturability and process
✓ Prototype to production, same process control
As a custom springs manufacturer and precision spring manufacturer. we develop custom coil springs, stamping, and formed components to meet functional, dimensional, and performance requirements.
Each project starts with your drawing, sample, or specification. Our engineering team provides manufacturability insightsand process guidance during development.
Prototypes and full-scale production follow the same inspection standards —the part you approve is the part we scale.
Product Categories

Compression Springs
Designed for controlled tension and return force

Extension Springs
For space-constrained applications

Torsion Springs
Angular force solutions for rotational systems

Spiral & Constant Force Springs
For stable and repeatable force output

Flat Springs & Precision Stampings
Components with elastic performance

Wire Forms & Custom Assemblies
Bent wire parts and spring assemblies tailored
Engineering & Process Commitment
Engineering Feasibility Evaluation
Every project begins with dimensional and performance validation.
Process Planning & Production Mapping
Clear manufacturing routing and parameter definition before production.
Quality Control Framework
IQC, First Article Inspection and in-process validation.
Supply Chain Coordination
Material sourcing, surface treatment and logistics planning.
Material & Surface Treatment Options
Material:
- Stainless Steel 201/301/302/304/316/631
- Musice Wire
- Caron Steel
- 65Mn
- Inconel
- Beryllium Copper PBW
- Phosphor Bronze
- 55SiCr
- 50CrVA
- 60Si2Mn
- Titanium
- Q195/235
- Pre-Nickel Plating Wire
- Pre-Zinc Plating Wire
Surface Treatment:
- Oil
- Plating
- Powder Coating
- Electrophoresis
- IP/PVD Plating
- Dacromet Coating
- Black Oxidation
- Anodizing
- Passivation
- Polishing
- Phosphate
- Hot-Dip Galvanizing
- Shot Peening
- Heat Treatment + Nitriding
Material and finishing selections are validated based on mechanical performance and environmental requirements.Have a specific material or finish requirement?
Wide Range of Applications
SNM Hardware supplies a variety of springs, which are widely used in electronics, engineering machinery, medical, fire safety and other fields.
Air Rifle Springs
Fire Damper Spring
Battery Spring
Linear Actuator Spring
Mold Spring
Canted Coil Spring
Wave Spring
Touch Spring
Vending Machine Spring
Counterbalance Spring
Garter Spring
Door Closer Spring
Return Compression Springs
Door Handle Spring
Sensor Wire Forms
Thread Guide Wire Forms
Solenoid Torsion Springs
Switch Spring
Grill Handle Spring
We custom springs for all of your needs. If you have any creative idea or design. Please feel free to contact us. Our team are gald to work with you.
Customize Compression Springs
Customize Torsion Springs
Customize Tension Springs
Customize Other Springs
Common Sense of Torsion Springs
Common Sense of Torsion Springs A torsion spring is a type of mechanical spring that works…
SNM HARDWARE 2026 Chinese New Year Holiday Schedule
SNM HARDWARE 2026 Chinese New Year Holiday Schedule & Key Logistics Dates: Plan Ahead for...
Key Info of Stamping
Definition of Metal Stamping Metal stamping is a process that uses a punch and a...
Three Types and Formats of Compression Springs
Three Types and Formats of Compression Springs There are many types, styles and sizes of...
Die Springs in Flow Batteries
Applications of Die Springs Die springs are widely utilized in industrial applications for their pre…
Washer Suspension Extension Springs:The Engineering Aesthetics of Silence
The Engineering Aesthetics of Silence: Washer Suspension Extension Spring The Art of Tension:Where E…
Torsion Spring Terminology
Torsion Spring Terminology Active Coils: The number of coils in the spring that are compressed …
Weight Stack Compression Spring for Top Plate / Guide Rod Buffer
Weight Stack Top Plate Guide Rod Buffer Compression Spring In our main article on counterbalance...