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Custom Double Torsion Springs With Special Bent Arms

Custom Double Torsion Springs With Special Bent Arms
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Custom Double Torsion Springs With Special Bent Arms product parameters

We offer full custom spring manufacturing services for non-standard precision elastic components. We produce all types of springs, wire forms and metal stampings strictly according to your CAD drawings, and can provide professional engineering design support and tailored production solutions based on your specific application requirements.

Item	Details
Product Name	Custom Double Torsion Springs With Special Bent Arms
Spring Type	Double coil torsion spring, dual helix torsion spring with custom bent arms
Manufacturing Process	Multi-axis CNC wire forming, precision torsion coiling, high-temperature stress relief tempering, trimming and deburring, customized bending forming
Materials Available	SUS304 / SUS316 stainless steel, high carbon spring steel, music wire, alloy spring steel; special metal materials available upon request
Surface Treatment	Natural metal finish, passivation, zinc plating, nickel plating, black oxide; RoHS compliant eco-friendly surface treatments for export orders
Tolerance Standard	Wire diameter tolerance ±0.01mm; overall dimensions, bending angle and torsion torque comply with ISO 10243; torsion force tolerance ±5%; stable consistency of bent arm shape
Inspection Standards	Full dimensional measurement with precision tools, torsion torque testing, repeated fatigue cycle sampling test, salt spray anti-corrosion test; inspection reports can be provided on demandCustomization ServiceCustom wire diameter, coil O
Customization Service	Custom wire diameter, coil OD, coil turns, bending angle, arm length and torsion torque; OEM & ODM available based on your 2D drawings, 3D files or physical samples

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Detailed description

Custom Double Torsion Springs With Special Bent Arms

As a professional custom spring manufacturer based in Dongguan, we produce precision custom double torsion springs with special bent arms. All dual coil torsion springs can be tailor-made strictly according to overseas customers’ 2D drawings, 3D models and physical samples. Unlike single torsion springs, our double torsion springs adopt dual symmetric coil structure with customized bent legs, which can provide balanced bidirectional torsion force. They are widely used for clamping, automatic reset, rotational torque transmission and angle positioning in automation equipment, household hardware, small machinery, electronic fixtures and daily-use mechanisms. We offer complete OEM & ODM customization services to satisfy diverse torsion requirements for global industrial buyers.

CNC Precision Manufacturing Technology for Double Torsion Springs With Bent Arms

Custom double torsion springs are processed by multi-axis CNC wire forming equipment. The machine accurately controls coil diameter, number of coils, bending angle and arm length to ensure high symmetry of double coils and consistent torsion performance. After torsion coiling and arm bending forming, all springs undergo high-temperature stress relief tempering treatment to eliminate internal forming stress, effectively preventing torsion fatigue and permanent deformation during repeated rotation.
Subsequent processes include trimming and deburring to remove sharp edges. The shape and angle of bent arms can be precisely adjusted to match your assembly structure. Automated forming ensures stable torsion torque among mass-produced parts and improves interchangeability during assembly. This mature production process can also be applied to single torsion springs, extension springs, compression springs and other special-shaped wire forming components.

Product Features & Industrial Advantages of Double Torsion Springs

Double torsion spring is a special torsion spring equipped with two coil bodies and bent arms, designed to output balanced bidirectional torsion force. Its prominent advantages in mechanical structures:
Balanced bidirectional torque: Symmetric double coils provide even torsion force, reduce unilateral wear during rotation;
Flexible customized bent arms: The shape, length and bending angle of legs can be freely designed to fit limited installation space;
Stable reset performance: Excellent fatigue resistance, suitable for frequent reciprocating rotation and clamping actions;
Compact structure: Save assembly space while maintaining reliable torsion output.
These characteristics make double torsion springs ideal elastic components for mechanical clamping structures, automatic opening-and-closing mechanisms and rotating positioning assemblies. Inaccurate bending angles or asymmetric coils will cause uneven stress and early failure. Therefore, high-precision custom double torsion springs are critical to guarantee stable equipment operation.

Our One-Stop Custom Manufacturing Solutions

We support full-spec customization of double torsion springs with special bent arms, serving automation equipment manufacturers, hardware factories, electronic component suppliers and machinery enterprises all over the world.
Our production range covers multiple types of dual coil torsion springs: miniature small double torsion springs, medium-sized clamping torsion springs, heavy torque double torsion springs, and non-standard special-shaped torsion springs designed for unique equipment.
Every spring is finished via CNC torsion forming, stress relief tempering, deburring and anti-rust surface treatment. All technical parameters can be adjusted according to your specifications. Apart from separate springs, we can also supply matched positioning pins, gaskets and other hardware accessories to simplify your procurement and assembly workflow.

Core Advantages of Our Custom Double Torsion Springs With Special Bent Arms

Precise Dimension Control & Stable Torsion Torque

Manufactured by multi-axis CNC wire forming machines. Wire diameter tolerance reaches ±0.01mm. Coil size, bending angle and arm dimension maintain excellent consistency. Torsion force tolerance controlled within ±5%. The spring keeps stable torque output under long-term repeated rotation.

Highly Flexible Parameter Customization

We customize wire diameter, coil outer diameter, coil turns, arm length, bending angle, rotation direction and target torsion torque according to your installation space, rotation angle and load requirements. No secondary modification is required after installation, shortening your product development cycle.

Multiple Material & Surface Treatment Options

Premium SUS304, SUS316 stainless steel, high carbon spring steel, music wire and alloy spring steel are available. Optional passivation, nickel plating, zinc plating and other surface treatments enhance rust and oxidation resistance. Stainless steel versions adapt to humid and slightly corrosive working environments. All surface treatments can meet RoHS and REACH environmental standards for European and American export markets.

Flexible Order Volume & On-Time Delivery

We accept prototype small-batch trial orders as well as mass bulk production orders. Unified strict quality control standards are implemented for all orders. Stable automated production lines support long-term repeat orders from global industrial customers.

OEM Custom Service Scope

We provide comprehensive customized solutions for torsion springs and all kinds of industrial elastic hardware.
Material selection: SUS304/SUS316 stainless steel, high carbon spring steel, music wire, alloy spring steel. Our engineers recommend optimal raw materials based on working temperature, torsion load, anti-corrosion requirements and budget.
Product range: Double torsion springs, single torsion springs, compression springs, extension springs, wave springs, stamped spring clips and custom special-shaped wire forming parts.
Surface treatment: Natural metal finish, passivation, zinc plating, nickel plating, black oxide, polishing, sandblasting. Eco-friendly finishes complying with RoHS & REACH are available for overseas shipments.
Service mode: Develop processing solutions based on drawings or physical samples. Support pre-mass production sample confirmation to verify dimensions, bending accuracy and torsion performance.

Typical Application Scenarios

Our custom double torsion springs with special bent arms are widely used in automation clamping fixtures, hardware locking mechanisms, household appliance hinges, small medical equipment, textile machinery, toy rotating assemblies, electronic switches and various automatic reset mechanical structures.

Frequently Asked Questions

FAQ 1

Q: Can you produce custom springs and wire forming parts according to my drawings or samples?
A: Yes, we mainly focus on OEM & ODM customized spring manufacturing services. We accept 2D files like PDF/DWG and 3D files such as STEP, IGES. You can also send physical samples for us to reverse-engineer and optimize the structure. Our engineering team will review your design and offer professional suggestions on cost saving and manufacturability (DFM) for free.

FAQ 2

Q: What kinds of metal materials can you use for spring manufacturing?
A: We support a full range of common elastic metal materials, including 304/316 stainless steel, high carbon steel, music wire, alloy steel, phosphor bronze, beryllium copper and brass. We can select suitable raw materials based on your product usage, working environment, elasticity requirements and budget.

FAQ 3

Q: Can I get trial samples before mass production? How long is the sample lead time?
A: Trial samples are available for all custom spring orders. The sample production cycle is 3–7 working days after drawing confirmation. After you test and confirm the sample dimension, force value and performance, we will arrange mass production. Small batch trial orders are also acceptable if you do not need large volume at first.

FAQ 4

Q: What surface finishing options do you provide for custom springs and elastic parts?
A: We offer multiple surface treatments to meet anti-rust, anti-corrosion, wear resistance and appearance demands: zinc plating, nickel plating, black oxide, passivation, powder coating, electrophoresis, sandblasting and polishing. If your products are exported to Europe, we can provide surface treatment that complies with RoHS and REACH standards.

FAQ 5

Q: How do you control the tolerance and quality of custom industrial springs?
A: Our standard wire diameter tolerance for general springs is ±0.01mm, with spring force value tolerance controlled within ±5%. We carry out strict three-step quality inspection: IQC for raw material incoming check, IPQC for in-process production monitoring, and FQC full dimension & force testing before shipment. We provide inspection reports and accept third-party quality inspection as requested.

FAQ 6

Q: What types of springs and elastic components do you support customization for?
A: We cover full-category custom elastic hardware, including compression springs, torsion springs, extension springs, wave springs, flat springs, spring clips, shrapnel, custom wire forming parts and various non-standard elastic stampings. No matter conventional standard springs or special-shaped custom elastic parts, we can provide targeted manufacturing solutions.

About our company

Dongguan Lanbo Electronic Technology Co., Ltd. (Brand: LAMBOOR) was established in 2010 with 15 years of experience in precision hardware manufacturing. We own a 3,000 sq.m standardized factory and employ over 100 professional technicians, acting as an integrated one-stop manufacturer specializing in custom precision hardware structural components, covering mold development, stamping, sheet metal, CNC turning, welding and dust-free assembly.

We are fully equipped with Jinfeng/Aomate stamping machines, laser cutting machines, CNC bending machines, together with complete QC testing equipment including 2D projectors, salt spray testers and tensile testers. Certified to ISO9001:2015, we hold multiple utility model patents for hardware molds.

Our products are widely applied in consumer electronics, optical communication, medical devices, automotive and new energy electrical industries, with more than 400 customized projects completed. We maintain long-term partnerships with renowned enterprises including KYOCERA, Foxconn and RICOH.

63% of our annual RMB 30 million revenue comes from overseas exports. Our self-developed progressive mold technology cuts processing costs by 80%. We support rapid prototyping and mass production, delivering stable, cost-effective customized hardware solutions for global clients.