Product Specification

High-Precision Flat Spiral Torsion Spring | Durable Steel for Motors

Product Description

Our High-Precision Flat Spiral Torsion Spring is engineered to deliver reliable, consistent torque in compact spaces. Often referred to as clock springs or constant force springs, these components are manufactured using premium-grade high-carbon steel or stainless steel to ensure an extended service life.

Unlike standard wire springs, these flat springs are wound from rectangular cross-section material, allowing them to store and release rotational energy with exceptional efficiency. Each spring undergoes a rigorous heat-treatment process to optimize elasticity and prevent deformation under high-stress cycles. Whether you are looking for a reliable reset mechanism for automotive seat belts or a stable power source for precision motor brushes, our springs provide the high fatigue resistance and durability required for modern industrial applications.

Features

• Superior Durability: Crafted from high-strength alloys to ensure long-term performance without loss of tension.

• Space-Saving Design: Provides high torque output within a minimal footprint, ideal for miniaturized electronics and compact machinery.

• Smooth Torque Delivery: Engineered for a stable energy release, reducing mechanical vibration and wear in motor assemblies.

• High Fatigue Resistance: Specifically treated to withstand millions of cycles, ensuring an extended service life in demanding environments.

• Corrosion Protection: Available with various surface finishes, including zinc plating and black oxidation, to resist harsh industrial conditions.

Technical Parameters

Applications

Our flat spiral torsion springs are versatile components used across various high-tech and heavy-duty industries:

• Automotive Industry: Essential for seat belt retractors, window regulators, and clock springs in steering wheel assemblies.

• Electric Motors: Used in carbon brush holders to maintain constant pressure, ensuring efficient electrical conductivity and motor longevity.

• Electronics & Appliances: Integrated into cord rewinders for vacuum cleaners, timers, and high-end consumer kitchen gadgets.

• Industrial Machinery: Applied in counterbalancing mechanisms for heavy doors, tool retractors, and automated manufacturing equipment.

• Medical Devices: Used in precision diagnostic equipment and surgical tool retraction systems requiring smooth, silent operation.

Customization

We specialize in providing tailored solutions to meet your specific engineering requirements. Our METS Team works closely with your designers to adjust the following parameters:

• Custom Dimensions: Precision adjustment of inner/outer diameters and material thickness to fit your housing.

• End Configuration: We offer various hook types, bends, and mounting holes to ensure seamless integration into your assembly.

• Load Calculations: Our engineers can calculate the specific torque-to-turn ratio required for your application to ensure optimal performance.

Support and Services

• Engineering Consultation: Free technical support for spring design and material selection.

• Rapid Prototyping: Small batch production for testing and validation before full-scale manufacturing.

• Quality Assurance: Full inspection reports and material certifications provided with every order.

• Global Logistics: Efficient export services to handle international shipping and customs documentation.

Packing and Shipping

• Protective Packaging: Springs are oiled to prevent rust and packed in moisture-proof bags, then secured in heavy-duty corrugated boxes.

• Custom Labeling: Every package includes part numbers, batch details, and quantity for easy inventory management.

• Shipping Methods: We offer flexible shipping via Express (DHL/FedEx/UPS), Air Freight, and Sea Freight depending on your timeline and budget.

FAQ

Q: What is the lead time for custom flat spiral springs?

A: Typically, samples are completed within 7-10 business days, while mass production takes 15-25 days depending on complexity.

Q: Can you provide springs with high-temperature resistance?

A: Yes, we use specialized stainless steel grades or Inconel alloys for applications operating in extreme heat.

Q: Do you offer free samples?

A: We can provide existing stock samples for quality evaluation; custom prototypes may incur a small tooling fee.

Q: How do you ensure the torque remains consistent?

A: We use precision winding technology and strictly controlled heat-treatment cycles to ensure every batch meets your exact torque specifications.