Dongguan Lanbo Electronics Technology Co., Ltd.

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Custom Compression Torsion Extension Springs

Custom Compression Torsion Extension Springs
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Custom Compression Torsion Extension Springs 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 Compression Torsion Extension Springs
Spring Type	Compression springs, torsion springs, extension springs, custom bent wire form springs
Manufacturing Process	CNC spring coiling, heat treatment tempering, end grinding, hook forming, wire bending shaping, deburring, precision surface finishing
Materials Available	304/316 Stainless Steel, High Carbon Steel, Music Wire, Alloy Steel; customized metal alloy materials on request
Surface Treatment	Black oxide, zinc plating, nickel plating, passivation, powder coating, natural metal finish; custom surface treatments available
Tolerance Standard	Wire diameter tolerance ±0.01mm; outer diameter & free length comply with ISO 10243 standard; spring force tolerance ±5%; strict angle & dimension control for torsion springs
Inspection Standards	Full dimensional detection by calipers & micrometers; spring force testing; fatigue life sampling test; salt spray corrosion test; FAI first article inspection report available
Customization Service	Custom wire diameter, outer diameter, free length, coil count and end configuration; OEM & ODM production supported per your 2D drawings, 3D files or physical samples

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Detailed description

Custom Compression Torsion Extension Springs

As a professional custom spring manufacturer based in Dongguan, we fabricate high-precision compression springs, torsion springs, extension springs and custom wire form components with ±0.01mm tight tolerance, strictly manufactured according to customers’ 2D & 3D engineering drawings. Our custom elastic components are widely used for buffering reset, torsion return, tension loading and special-shaped positioning in automation equipment, precision instruments, automotive systems and electronic devices. We provide full OEM & ODM customization services to meet diverse elastic component demands of global industrial purchasers.

Precision Spring Coiling & Wire Forming Manufacturing Technology

CNC spring coiling is the most precise and efficient manufacturing process for industrial elastic components and precision wire forming parts. Adopting programmable multi-axis spring coiling machines and CNC wire bending equipment, solid metal wires are shaped through continuous wire feeding, coiling, end forming, bending and trimming operations with computer-controlled precision, followed by standardized heat treatment tempering to stabilize elastic performance.
Compared with manual spring making and traditional stamping forming, precision CNC spring manufacturing delivers consistent wire diameter tolerance down to ±0.01mm, stable spring force value and excellent fatigue resistance across high-volume production runs. It is widely applied to produce all types of industrial springs, elastic stampings and custom wire forms for mold tooling, electronic devices, medical equipment, automotive systems and industrial automation machinery.
With multi-axis coiling and secondary bending capabilities, our spring manufacturing technology supports custom configurations including closed ends, ground ends, various hook types, torsion leg angles and complex 3D wire shapes, which fully meets the diversified demands of precision elastic components for industrial equipment.

Types of Custom Springs & Their Industrial Application Value

Custom industrial springs are core elastic functional components divided into multiple categories according to force bearing mode and structural form, each with irreplaceable application value in industrial scenarios.
Compression Springs: Helical coil springs designed to bear axial compressive force, used for buffering, resetting, energy storage and load bearing in equipment. They can accurately control compression stroke and rebound force, and are the most widely used elastic components in mechanical assembly, mold buffering and equipment damping.
Torsion Springs: Springs that rely on torsional moment to generate rebound force, with two lever-style torsion legs. They are used for rotational reset, clamping and angle control, commonly seen in hinges, switches, clamps and rotating mechanisms to provide stable torsion and accurate reset angle.
Extension Springs: Helical springs with hooks at both ends for axial tension loading, used for tensioning, pulling reset and gap elimination. They maintain stable tensile force during long-term reciprocating motion, and are widely used in tension mechanisms, door closers and lifting equipment.
Wire Form Springs & Bent Wire Parts: Custom-shaped elastic components formed by bending metal wires, used for special-shaped positioning, clamping and structural connection. They can be designed into various complex shapes according to assembly space, providing integrated elastic support and positioning functions.
In precision production equipment, electronic devices and automotive assemblies, custom springs act as core functional components. Stable force value, dimensional accuracy and fatigue life are essential to keep equipment running stably. Poor machining accuracy will lead to insufficient elasticity, premature fatigue fracture and shortened equipment service life, so high-precision custom industrial springs are indispensable basic hardware for precision industrial manufacturing.

Our Custom Spring Manufacturing Solutions

We offer one-stop custom manufacturing solutions for compression springs, torsion springs, extension springs and all types of wire form elastic components, serving automation equipment factories, precision mold manufacturers, electronic product enterprises and mechanical processing companies all over the world.
Our production range covers multiple types of custom elastic hardware: heavy-duty industrial compression springs, micro precision torsion springs, various hook-type extension springs, complex 3D bent wire forms, flat spring stampings and special-shaped elastic parts tailored for equipment assembly.
All products are processed by precision CNC spring coiling machines, combining wire forming, heat treatment tempering, end grinding, hook shaping, surface finishing and deburring processes. All manufacturing procedures and surface treatment are completed in strict accordance with your engineering drawings. Apart from individual spring products, we also supply matched pins, brackets and supporting hardware accessories to simplify your procurement management and on-site assembly work.

Core Advantages of Our Custom Industrial Springs

Ultra-precise dimensional consistency & stable elastic performance

All springs are manufactured on high-precision multi-axis CNC spring coiling machines with whole-process force value and dimension monitoring. Unified wire diameter, coil pitch, outer diameter and end configuration ensure consistent force performance for every piece, effectively avoiding assembly deviation and unstable elasticity during operation.

Flexible personalized end configuration & shape customization

On the basis of standard spring coiling forming, we support free adjustment of wire diameter, outer diameter, free length, coil count, torsion leg angle and hook style. We can also design special-shaped structures according to your assembly space, reducing your secondary processing workload and shortening your equipment development cycle.

Outstanding fatigue resistance & corrosion resistance for long-term operation

We select premium 304/316 stainless steel, high carbon steel, music wire and phosphor bronze as raw materials. Optional zinc plating, nickel plating, black oxide, passivation and powder coating treatments greatly enhance rust-proof and wear-resistant properties, adapting to various indoor workshop and outdoor long-running working environments.

Full structural customization to match unique assembly needs

We can freely adjust total length, wire gauge, number of coils, end form and bending angle based on your assembly structure requirements. Brand new non-standard special-shaped spring and wire form designs are fully supported for your new-generation equipment upgrading.

Stable mass production capacity & punctual delivery

From small-batch prototype sampling to large-volume bulk orders, we always implement unified strict quality inspection standards. Sufficient production capacity ensures continuous stable supply, supporting long-term procurement plans of global industrial brand customers.

OEM Customization Service Scope

We provide comprehensive tailor-made solutions for custom springs, wire forms and all types of precision elastic stamping components. For material selection, we work with 304/316 stainless steel, high carbon steel, music wire, alloy steel, phosphor bronze and beryllium copper, all available in a wide range of wire diameters and sheet thicknesses to match your design specifications.
On component customization, our manufacturing scope covers compression springs, torsion springs, extension springs, wave springs, flat springs, spring clips, custom wire forms and virtually any custom elastic hardware parts based on your unique requirements. For surface finishing, customers can choose from zinc plating, nickel plating, black oxide, passivation, powder coating, electrophoresis and mechanical polishing to meet specific corrosion resistance and appearance needs.
In terms of service mode, we supply both individual precision spring parts and kitted pre-assembled elastic component sets according to your production workflow. For custom special-shaped springs, we develop exclusive tooling setups based on your engineering drawings or physical samples, with full support for small-batch prototype testing before full production commitment.

Typical Application Scenarios

Our custom compression torsion extension springs are widely applied in industrial automation assembly fixtures, precision electronic testing equipment, automotive mechanical fittings, mold buffer components, medical instrument elastic parts, intelligent household appliance rotating mechanisms, communication equipment and semiconductor production devices.

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.