| Customization: | Available |
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| Function: | Pressed |
| Material: | Steel |
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Bosswin Torsion Springs are high-performance rotational components engineered for smooth operation, reliable torque, and long-lasting durability in industrial, automotive, and mechanical applications. Designed for precision and endurance, our torsion springs deliver consistent force and seamless rotation, ensuring optimal performance even under heavy loads and repetitive use.
Superior Engineering - Precision-crafted for smooth rotation and precise torque control.
Premium Materials - Made from high-grade stainless steel, carbon steel, or phosphor bronze for maximum strength and corrosion resistance.
Long-Lasting Performance - Resistant to fatigue, deformation, and wear, even in demanding conditions.
Easy Integration - Designed for quick installation and maintenance, reducing downtime and boosting efficiency.
Whether you need high-torque resistance, smooth return motion, or reliable angular force, Bosswin Torsion Springs provide the strength, precision, and durability your applications demand.
Engineered for Excellence. Built for Performance.
Uncompromising Stability - Engineered for vibration-resistant torque transmission, maintaining precise positioning even under dynamic loads
Advanced Material Science - Manufactured from high-tensile stainless steel, carbon steel, or phosphor bronze with optional protective coatings
Engineered Fatigue Resistance - Maintains consistent torque characteristics through millions of operational cycles
Rapid Deployment Design - Features tool-free installation configurations to minimize assembly time and labor costs
Extreme Environment Rated - Performance-certified for:
Wide temperature ranges (-40°F to +300°F)
High humidity and corrosive atmospheres
Continuous duty industrial applications
Precision Manufacturing - Produced using:
CNC coiling technology
Stress-relieved heat treatment
100% quality verification testing
Cross-Industry Compatibility - Proven in:
Automotive systems
Heavy equipment
Aerospace mechanisms
Renewable energy applications
Industrial automation
Custom Engineering Services - Available modifications include:
Special leg configurations
Proprietary coatings
Non-standard diameters
OEM-specified load requirements
Secure and Stable Clamping
Designed for firm, vibration-resistant attachment, ensuring components stay securely in place even under dynamic loads.
High-Performance Materials
Manufactured from top-grade stainless steel, carbon steel, or phosphor bronze, with anti-corrosion coatings for extended service life.
Excellent Fatigue Resistance
Engineered to maintain consistent tension and elasticity through repeated use in demanding environments.
Quick Installation and Removal
Spring-loaded structure enables tool-free or minimal-tool handling, reducing downtime and improving on-site efficiency.
Durability Under Harsh Conditions
Withstands temperature changes, mechanical stress, and corrosive atmospheres-ideal for outdoor and industrial settings.
Precision Forming and Tight Tolerances
Produced using advanced forming and punching techniques to ensure accurate dimensions and repeatable performance.
Versatile Application Range
Suitable for use in construction, automotive, electronics, HVAC systems, appliances, and custom assembly solutions.
Customizable Options
Available in various sizes, force ratings, and finishes; tailored solutions can be designed to meet OEM or specialized project requirements.
| Material Type | Common Grades | Surface Treatment | Key Advantages |
|---|---|---|---|
| Stainless Steel | SUS301, SUS304, SUS316 | Passivation, Electropolishing | Superior corrosion resistance, ideal for harsh environments |
| High-Strength Carbon Steel | 65Mn, 70#, SK5 | Zinc plating, Black oxide, Phosphating | Exceptional fatigue resistance, long service life |
| Phosphor Bronze | C51000, C52100 | Natural finish, Tin coating | Excellent wear resistance, smooth conductivity |
Material Thickness: 0.2 mm - 2.5 mm
Hardness (HRC): 38-55 (optimized for material & application)
Tensile Strength:
Stainless Steel: 900-1200 MPa
Carbon Steel: 1200-1600 MPa (maximum load capacity)
Phosphor Bronze: 400-800 MPa (ideal for precision wear applications)
| Parameter | Specifications | Why It Matters |
|---|---|---|
| Spring Force | 1 N - 50 N (fully customizable) | Perfect tension for smooth, consistent operation |
| Torsion Width | 5 mm - 50 mm | Fits industry-standard channels & custom profiles |
| Torsion Length | 10 mm - 150 mm | Optimized for clamping strength & space constraints |
| Bending Angle | 30° - 180° (U, V, S shapes available) | Adapts to complex assembly requirements |
| Surface Coating | Zinc, Chrome, Nickel, Black Oxide, Dacromet | Enhanced corrosion protection & sleek finishes |
| Fatigue Life | 100,000+ cycles (tested for dynamic use) | Reliable performance under repeated stress |
| Tolerances | ±0.05 mm (dimensions), ±2° (angle) | Precision manufacturing for seamless integration |
| Temp. Range | -40°C to +250°C | Performs in extreme conditions without degradation |
Hole Patterning - Precision slots, holes, or cutouts for secure fastening
Reinforced Design - Embossing & ribs for added strength and alignment
Branding Options - Custom logo stamping for traceability and professionalism
Smart Packaging - Bulk, tape-and-reel, or trays for automated assembly
At Bosswinn, we engineer torsion springs for flawless performance and long-lasting durability. Our rigorous production process ensures every spring meets the highest standards of precision, strength, and reliability.
Incoming Quality Control (IQC):
Verified material grade (certificate validation)
Strict checks for thickness, hardness, and surface finish
No rust, cracks, or deformities allowed
Surface Preparation:
Degreasing & pickling to remove contaminants
Ensures optimal adhesion for coatings
Equipment: High-accuracy coil slitters & laser cutters
Tolerance: ±0.1mm for minimal waste
Process: Custom-cut to exact spring dimensions
Equipment: CNC presses & laser cutting machines
Precision Dies: Progressive & compound dies for complex shapes
Quality Check: Burr-free edges, exact hole/slot dimensions
Machines: Automated CNC benders & press brakes
Shapes: U-clips, S-clips, V-clips, Omega clips, and custom designs
Tolerance: ±0.05mm for perfect fitment
Processes: Hardening, tempering, stress relief
Temperature Control: 400°C-600°C for optimal elasticity
Verification: Hardness & tensile strength testing
Options: Zinc plating, black oxide, nickel, phosphating
Benefits: Corrosion resistance, conductivity, sleek finish
Testing: Salt spray & coating thickness checks
Deburring & Polishing: Smooth edges for safety & performance
Sub-Assembly: Multi-piece clip integration (if required)
Fit Testing: Ensures seamless operation
Mechanical Testing:
Load/deflection validation
100,000+ cycle fatigue testing
Clip retention force check
Visual Inspection:
Flawless surface finish
No sharp edges or defects
Traceability: Laser marking with part/batch numbers
Packaging Options:
Bulk cartons
Individually wrapped
Tape-and-reel for automated assembly
Labeling: Full material specs, quantity, and compliance details
Global Logistics: Ready for export with certified standards
Precision Engineering - Tight tolerances for perfect fit
Superior Durability - Fatigue-resistant for long life
Custom Solutions - Tailored to your exact needs
Experience smooth rotation and peak performance-trust Bosswinn for premium torsion springs!
At Bosswinn, we engineer torsion springs that deliver smooth rotation, reliable torque, and long-lasting durability. Our rigorous quality control process ensures every spring meets the highest standards-so you get maximum performance in every application.
Goal: Ensure defect-free raw materials enter production.
Material Certification Review
Verified material grade (SUS304, 65Mn, etc.)
Traceable batch origin for full accountability
Physical & Mechanical Testing
Hardness Test (Rockwell/Vickers)
Torsional Strength Verification
Wire Diameter & Surface Quality Inspection
Visual Inspection
No rust, cracks, scratches, or surface imperfections
Goal: Monitor and maintain quality throughout manufacturing.
| Process Step | Inspection Focus | Tools & Methods |
|---|---|---|
| Coil Winding | Pitch consistency, diameter | Optical comparators, calipers |
| Leg Forming | Angle accuracy, leg alignment | Protractors, precision gauges |
| Heat Treatment | Hardness consistency, stress relief | Rockwell tester, torsion samples |
| Surface Treatment | Coating uniformity, corrosion resistance | Salt spray chamber, thickness gauge |
Goal: 100% compliance before shipment.
Precision Dimension Verification
±1° tolerance on wind angle
Leg position accuracy within ±0.5mm
Spring Performance Testing
Torque output verification at multiple rotation angles
Cycle testing (>50,000 rotations minimum)
Surface & Structural Integrity
No burrs or sharp edges
Coating adhesion testing
Torque deviation analysis for performance issues
Material and process optimization
Equipment calibration programs
Operator training on torsion spring specifics
We offer advanced validation for demanding uses:
Extended cycle testing (100,000+ rotations)
Temperature resistance testing (-40°C to 120°C)
Custom torque curve analysis
Vibration and noise testing
When reliability and performance matter, Bosswinn Torsion Springs deliver the perfect balance of strength, durability, and precision engineering. Designed to provide consistent rotational force in the most demanding environments, our torsion springs ensure smooth operation, long-lasting performance, and unmatched quality.
Bosswinn torsion springs provide secure, vibration-resistant fastening for:
Trim panels, dashboard components, and wire harnesses
HVAC ducts, filter housings, and underbody shields
Interior/exterior mounts that endure harsh road conditions
Why Bosswinn? Our springs resist fatigue, ensuring long-term stability even in high-vibration environments.
Engineered for quick installation and robust support, our torsion springs are ideal for:
Wall panels, ceiling frames, ducts, and insulation boards
Cable trays, pipelines, and structural framing systems
Modular structures requiring rapid, tool-less assembly
Why Bosswinn? Corrosion-resistant coatings ensure durability in demanding environments.
Bosswinn springs enable efficient, snap-on assembly for:
Internal components in washers, refrigerators, and AC units
PCB mounts, casings, and control modules
Service-friendly designs with easy disassembly
Why Bosswinn? Precision torque control ensures consistent performance over thousands of cycles.
Our torsion springs provide secure, tool-less fastening for:
Wires, conduits, and busbars in switchboards
DIN rail-mounted components in control panels
Compact enclosures where space is critical
Why Bosswinn? Non-conductive coatings enhance safety in electrical applications.
Built to endure extreme shocks, vibrations, and thermal stress, our springs are used in:
Panel mounts, lighting systems, and cable management
Heavy-duty applications requiring fail-safe retention
Why Bosswinn? High-cycle fatigue resistance ensures reliability in transit systems.
Bosswinn torsion springs enable maintenance-friendly, vibration-proof designs for:
Tool-less fastening of guards and access panels
Dynamic assemblies needing shock absorption
Repeatable locking mechanisms for easy servicing
Zhuji Bosswinn Springs Co., Ltd. is a trusted manufacturer specializing in the design, development, and production of high-performance spring components. With advanced facilities and experienced engineers, we provide customized and standard solutions for various industries.
Custom Spring Manufacturing
Precision-made compression springs, tension springs, torsion springs, and wire forms based on your drawings or samples.
Damping, Suspension & Brake Chamber Springs
Engineering and mass production of springs for automotive, truck, and industrial damping systems.
OEM & ODM Services
Full support from concept design to finished product, including tooling development and sample validation.
CNC Machining & Stamping Parts
Production of precision-machined and punched metal components to complement spring assemblies.
Surface Treatment & Heat Treatment
In-house processes including tempering, black oxide coating, powder coating, and plating to enhance durability and corrosion resistance.
Quality Control & Testing
Comprehensive QC procedures, including load testing, fatigue testing, dimensional inspection, and material certification.
Zhuji Bosswinn is committed to on-time delivery, stable quality, and responsive customer service for both domestic and international clients.
A: Yes! Bosswinn is a leading manufacturer of high-performance torsion springs, with over 10 years of expertise serving industries such as automotive, industrial machinery, medical devices, and consumer electronics.
Our vertically integrated production facilities ensure complete quality control:
Precision CNC coiling machines for consistent spring performance
In-house heat treatment & stress-relieving for durability
Advanced testing labs for torque, fatigue, and corrosion resistance
Full traceability from raw material to finished product
A: Bosswinn torsion springs are engineered for:
Automotive: Door hinges, seat mechanisms, pedal returns
Industrial: Clamps, latches, conveyor systems, robotic arms
Consumer Goods: Garage doors, tool triggers, appliance lids
Medical & Aerospace: Surgical instruments, flight control systems
Custom OEM Solutions: Tailored designs for unique mechanical needs
A:
Standard torsion springs: 7-15 working days
Custom designs: 15-30 days (depending on tooling complexity)
Expedited production: Rush service available (contact us for details)
Our real-time tracking system ensures on-time delivery.
A:
Prototypes / Samples: 50-100 pcs (low-risk testing)
Mass production: 10,000+ pcs (best pricing & efficiency)
OEM projects: Flexible MOQs based on design requirements
A:
T/T (Bank Transfer): 30% deposit, balance before shipment
L/C (Letter of Credit): For large-volume orders
Western Union / PayPal: For small orders & samples
Custom terms available for long-term partners
A: Yes!
Free samples for standard torsion springs
Custom samples in 3-7 working days (based on your specs)
Pre-production testing (torque, fatigue, fitment verification)
A: We work with top-grade materials for optimal performance:
Carbon Steel (65Mn, 70#, SK5): High strength & elasticity
Stainless Steel (SUS301, SUS304): Corrosion-resistant
Alloy Steel (SWP, SWC): Heavy-duty applications
Phosphor Bronze / Beryllium Copper: Conductive & non-sparking
Surface Treatments: Zinc plating, black oxide, powder coating, electropolishing
A: Bosswinn follows strict quality protocols:
Raw material inspection (hardness, tensile strength)
In-process checks (coil consistency, leg alignment)
Final testing:
Torque verification (±5% tolerance)
Fatigue testing (50,000+ cycles)
Salt spray & corrosion resistance
Certifications: ISO 9001, RoHS, PPAP (on request)
A: Absolutely! Our engineering team provides:
Load & deflection calculations
2D/3D modeling (AutoCAD, SolidWorks, Pro-E)
Prototyping & testing before mass production
Cost & material optimization
A: Yes! Bosswinn ships torsion springs worldwide, including:
Europe: Germany, France, Italy
Americas: USA, Canada, Mexico
Asia: Japan, South Korea, Middle East
We handle FOB, CIF, DDP shipping with full export documentation.
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