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Mold Design & Development
Professional mold design team using CAD/UG software, independently developing spring molds with 0.005mm precision and ≥1,000,000 cycle service life. Supports custom-shaped spring mold development.
Online Custom Spring Manufacturing Services
LS Manufacturing specializes in custom precision springs, delivering cost-effective, high-quality bulk solutions for you with full production and quality control.
- Factory Direct No middlemen, cost-effective & fully controlled
- Precision Bulk Production Stable output, consistent quality
- Custom Solutions Tailored to your functional needs
- Reliable QA Strict inspection, long-term stable performance
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Trusted by Engineers and Purchasing Leaders at the World's Most Successful Companies
15+Years in Business
600,000+Custom Springs Manufactured
80+Countries Served Globally
98%On-Time Delivery Assurance
ISO9001:2015 Certified
Trusted bynumerous companies
LS Manufacturing delivers over 600,000 custom-engineered springs with 98% on-time reliability, providing precise, certified spring solutions through our streamlined online platform for global industries.
Custom Spring Manufacturing Services With LS Manufacturing
Specializing in compression, extension, torsion springs + custom-shaped/micro springs. Strict precision control over dimensions, with end/surface finishing options for all industries.
Compression Springs
Most common spring type, contracts under axial force, stable stiffness, high fatigue resistance. Ideal for shock absorption, resetting, clamping. Supports pitch customization.
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Extension Springs
Stretches under axial force, with dual hooks/loops. Custom initial tension, ideal for traction/reset. Multiple hook styles available.
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Torsion Springs
Twists under radial force, dual torsion arms, precise torque. Ideal for rotation/locks/toys. Custom torsion angles.
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Custom Spring Fabrication
Custom springs from drawings/samples: shaped, micro, disc, spiral. One-stop service from design to delivery, supports OEM/ODM.
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Our Spring Manufacturing Capabilities
With 15 years of spring industry experience, we have a professional mold development team and spring production team, paired with a full set of precision processing and testing equipment. We achieve full-process independent spring manufacturing, ensuring product quality and delivery stability for bulk orders.
Precision Spring Forming
Full-range CNC spring coiling machines for 0.1–20mm wire, enabling automatic forming with 0.01mm precision, uniform wire spacing, no burrs, and consistent product quality.
Precision End Processing
Professional surface grinding and chamfering machines for compression/extension spring ends and torsion spring arm forming, ensuring ±0.02mm precision for perfect assembly fit.
One-Stop Surface Finishing
Complete surface treatments including plating, electrophoresis, and blackening to enhance corrosion resistance and appearance, meeting diverse anti-rust requirements.
Fatigue Life Testing
Professional spring fatigue testers simulate real-world use, ensuring ≥1,000,000 cycle service life to meet long-term performance needs.
Custom Shaped Spring Fabrication
Supports processing of disc, spiral, rectangular, and other special springs, enabling precise forming of complex structures to meet unique assembly requirements.
Strict Quality Inspection
Equipped with secondary element, tension, hardness, and fatigue testers for full-process inspection, ensuring 100% qualified products before shipment.
2–3 Day Rapid Prototyping
Independent sample workshop, responding to custom prototype requests quickly, completing samples and modifications in 2–3 days for immediate production confirmation.
Spring Manufacturing Production Process
Our 8-step process covers the entire production lifecycle, from small-batch pilot runs to high-volume mass production. With full in-house control, we ensure consistent quality, cost efficiency, and seamless scaling for your growing needs.
1
Demand Alignment
Receive drawings/samples, confirm specs, materials, volumes (from 100 to 1M+), and lead times, providing a cost-effective, scalable proposal.
2
Dual-Purpose Mold Engineering
Our team designs molds optimized for both pilot runs and mass production, with 0.005mm precision and 1M+ cycle durability.
3
High-Volume Wire Cutting
Automated cutting lines handle 0.1–20mm wire with ≤0.01mm accuracy, supporting daily throughput from 100 to 100k+ springs.
4
Scalable Spring Forming
Full-line CNC coiling machines with automated feeding, scaling from small pilot runs to 1M+ piece mass production.
5
Consistent End Finishing at Scale
Automated grinding and chamfering systems ensure ±0.02mm accuracy, from 100-piece pilots to 1M-piece batches.
6
Batch Surface Finishing
Large-scale plating, electrophoresis, and blackening lines deliver consistent quality, from pilot runs to mass production.
7
Full-Line Quality Control
Our labs use precision tools like coordinate measuring machines and fatigue testers to inspect every batch, ensuring 100% compliance with international standards across all volumes.
8
Bulk Packaging & Delivery
Standardized, secure packaging with scalable logistics, from pilot run shipping to 1M-piece mass delivery.
Spring Manufacturing Material Selection
LS Manufacturing offers a diverse material library, with precise matching to your operating conditions, application requirements, and budget—ensuring optimal spring performance and longevity across all production volumes.
Stainless Steel Series
Stainless Steel Series
Includes 304, 316, 316L, 430 grades, with excellent corrosion and high-temperature resistance, ideal for humid, acidic, medical, and general industrial environments.
304 Stainless SteelStandard Environment First Choice
316 Stainless SteelSevere Corrosion Environment
316L Stainless SteelMedical-Grade Standard
430 Stainless SteelCost-Effective Corrosion Resistance
Material Selection Recommendations
LS Manufacturing engineers provide precise material selection based on your application environment (temperature, humidity, corrosion), mechanical requirements (elasticity, strength, fatigue life), and budget. For special materials or custom needs, contact our technical team directly.
Spring Manufacturing Surface Finishes
Equipped with a full-process autonomous surface finishing production line, we provide customized protection solutions tailored to different spring materials and operating environments. All processes comply with environmental standards, balancing corrosion resistance, wear resistance, and aesthetic requirements to extend the service life of springs.
Electrogalvanizing
Core features: Low cost, uniform coating, easy operation
Salt spray resistance: 24–72 hours (neutral)
Suitable materials: Carbon steel, manganese steel springs
Suitable scenarios: Dry indoor, general industrial equipment
Hot-Dip Galvanizing
Core features: Thick coating, strong adhesion, wear resistance
Salt spray resistance: 200–500 hours (neutral)
Suitable materials: Carbon steel, manganese steel large springs
Suitable scenarios: Outdoor humid environments, engineering machinery, automotive chassis
Nickel Plating
Core features: Bright and aesthetic, good conductivity, corrosion resistance
Salt spray resistance: 100–200 hours (neutral)
Suitable materials: Stainless steel, carbon steel, piano wire
Suitable scenarios: 3C electronics, precision instruments, high aesthetic requirements
Blackening/Blueing
Core features: Low cost, no dimensional change, blue-black finish
Salt spray resistance: 8–24 hours (up to 72 hours with oil immersion)
Suitable materials: Carbon steel, piano wire (not for stainless steel)
Suitable scenarios: Indoor dry environments, general low-aesthetic requirements
Stainless Steel Passivation
Core features: Prevents rust, retains original color, no residual coating
Salt spray resistance: 304≥200h+, 316≥500h+
Suitable materials: 304/316/201 stainless steel (not carbon steel)
Suitable scenarios: All stainless steel springs, food/medical equipment
Electrophoretic Coating
Core features: Uniform coating, multiple color options, corrosion resistance
Salt spray resistance: 200–300 hours (neutral)
Suitable materials: Carbon steel, stainless steel, piano wire
Suitable scenarios: Automotive parts, home appliances, color requirements
Electrostatic Spraying
Core features: High hardness, smooth finish, rich colors
Salt spray resistance: 300–500 hours (neutral)
Suitable materials: Carbon steel large springs (not micro springs)
Suitable scenarios: Outdoor large springs, fitness equipment, engineering machinery
Chrome Plating
Core features: Extremely high hardness, bright finish, corrosion/wear resistance
Salt spray resistance: ≥300 hours (neutral)
Suitable materials: Carbon steel, stainless steel (higher cost)
Suitable scenarios: High wear resistance, high-precision equipment, hydraulic/pneumatic components
Agile Surface Finishing Selection Recommendations
Backed by 15 years of mass production experience and a full-scenario operating condition database, our professional engineering team will provide precise surface finishing selection based on your operating environment, spring material, production volume, and budget, ensuring optimal corrosion resistance and lifespan for bulk orders across all scenarios.
By Operating Environment: Dry indoor → Blackening/Electrogalvanizing; Humid outdoor → Hot-Dip Galvanizing/Electrophoresis; Marine/Chemical → 316 Stainless Steel + Passivation/Chrome Plating
By Material Compatibility: Stainless steel springs must be passivated (3–5x better corrosion resistance); Carbon steel springs prioritize Electrogalvanizing/Electrophoresis (balances cost and corrosion resistance)
By Volume & Precision: Micro-precision springs (wire diameter ≤0.5mm) not recommended for Hot-Dip Galvanizing/Spraying; If size is critical, choose Electrogalvanizing/Passivation
By Special Requirements: For color → Electrophoresis/Spraying; For wear resistance → Chrome Plating/Hot-Dip Galvanizing; For food/medical grade → 316 Stainless Steel + Passivation
Customer Success Stories
We focus on professional spring supporting services for all industries. With stable product quality and solutions adapted to various application scenarios, we strictly control quality and delivery efficiency throughout the process, help customers advance production smoothly and improve overall production efficiency.
New Energy Vehicles
LS Manufacturing × Leading Automaker: Mass Production of 1M+ Suspension Springs
A top EV manufacturer needed lightweight suspension springs for chassis, requiring 200k cycle fatigue life from -40℃ to 120℃ and 5M annual production capacity.
6M UnitsAnnual Capacity
250k CyclesFatigue Life
<0.05%Batch Defect Rate
Rail Transit
LS Manufacturing × High-Speed Rail Provider: Stable Supply of Bogie Damping Springs
A high-speed rail firm needed heavy-load damping springs for bogies, requiring ≤0.2mm deflection error under 100kN load and no performance degradation after 10-year life simulation.
≤0.15mmDeflection Error
12 YearsLife Simulation
100%On-Time Delivery
Construction Machinery
LS Manufacturing × Excavator Brand: Mass Production of High-Strength Shock Absorber Springs
An excavator manufacturer needed high-strength springs for shock absorber arms, requiring no fracture under 200kN impact load and rapid capacity ramp-up for bulk orders.
220kNImpact Load Capacity
15 DaysCapacity Ramp-Up
99.9%Batch Pass Rate
White Goods
LS Manufacturing × Home Appliance Giant: Scalable Supply of Washing Machine Clutch Springs
A major home appliance brand needed high-wear resistance springs for washing machine clutches, requiring ≤0.01mm wear after 5000 cycles and 20M annual production capacity.
22M UnitsAnnual Capacity
≤0.008mmWear
8%Cost Optimization
Offshore Engineering
LS Manufacturing × Offshore Platform Enterprise: Bulk Delivery of Corrosion-Resistant Valve Springs
An offshore platform firm needed salt-spray resistant springs for valves, requiring ≥1000 hours corrosion resistance in 5% salt spray and long-term stability in harsh marine environments.
1200 HoursSalt Spray Resistance
24 MonthsMarine Environment Test
100%Performance Stability
Custom Spring Production Factory/ Your Best Spring Manufacturing Manufacturer
LS Manufacturing focuses on industrial spring mass production and global supporting services, equipped with over 60 sets of automated spring production lines, intelligent warehousing management systems, and full-process quality control inspection lines. We have built an integrated supply chain system covering raw material centralized procurement, standardized spring production, and finished product logistics delivery. Strictly complying with ISO 9001 & IATF 16949 quality management standards, we achieve stable mass production of full-category industrial springs including compression springs, extension springs, and torsion springs, with product dimensional tolerance controlled within ±0.01mm and an annual production capacity of 200 million pieces. With mature large-scale production processes and strict quality control procedures (salt spray testing/fatigue testing), we efficiently meet bulk procurement needs of new energy vehicles, construction machinery, white goods and other industries, providing global clients with high-stability spring mass production solutions with efficient delivery and stable quality.
60+
Automated Mass Production/ Testing Equipment
2,000+
Partnered Global Industrial Enterprises
200,000,000+
Annual Production Capacity (pcs)
±0.01mm
Mass Production Dimensional Tolerance
Automated Industrial Spring Mass Production Workshop
Intelligent Warehousing & Logistics Center
Spring Quality Control & Salt Spray Testing Center
Full-Category Spring Finished Product Area
Spring Manufacturing with Guaranteed Quality
LS Manufacturing builds a full-link QC system covering raw materials, production and warehousing, ensuring mass-produced spring tolerance ≤±0.01mm to meet stable mass delivery needs of supporting services across industries.
Certifications
ISO 9001 and IATF 16949 certified, with production and inspection processes compliant with automotive-grade standards, laying a solid quality defense for large-scale supporting services.
Mass Production Capability
30+ mass production QC engineers, equipped with 25+ mass-scale tools (automated visual inspection lines, batch salt spray systems), supporting 100+ pcs/min batch inspection for both efficiency and quality.
Standardized Control
Following IATF 16949 APQP/PPAP processes, standardized operations from raw material sampling to finished product inspection ensure consistent mass production quality.
Batch Verification
Batch salt spray and fatigue testing ensure <0.05% failure rate for entire spring batches, guaranteeing long-term stable performance.
Why Choose LS Manufacturing as Your Spring Manufacturing Manufacturer
We deliver dual assurance of efficiency and stability through full-link quality control, large-scale delivery, and flexible adaptation for your production.
/01
Full-Link Stable Quality Control
A full-link quality control system ensures consistent quality of mass-produced springs, meeting quality requirements for large-scale supporting services across industries.
/02
Large-Scale Fast Delivery
With standardized production processes, we stably support bulk orders to keep your production on track.
/03
Flexible On-Demand Adaptation
We offer full-category spring production, with flexible adaptation of materials and performance, providing one-stop supporting services.
ADVANTAGES
Key Advantages of Spring Manufacturing
Spring manufacturing offers the following core technical advantages:
Consistent Quality Stability
Powered by automated forming equipment and full-link QC, it ensures dimensional tolerance of each batch ≤±0.01mm, with highly uniform quality.
Efficient Bulk Output
Standardized production lines and intelligent scheduling systems enable high-volume, low-downtime continuous production, significantly improving delivery efficiency.
Full-Category Process Coverage
Supports processing of full-category industrial springs (compression, extension, torsion, etc.), adapting to large-scale supporting needs of multiple industries.
Cost Optimization Capability
Reduces material waste and labor costs through process optimization, significantly lowering unit production costs in medium to high-volume scenarios.
Mature Process Stability
Process solutions verified by long-term mass production can stably meet large-scale, long-term continuous production needs.
Scenario-Based Process Adaptation
Provides customized mass production process solutions for application scenarios of different industries, ensuring product performance matches scenarios.
APPLICATIONS
Spring Industry Applications
Springs, with stable mass production and high adaptability, serve large-scale manufacturing scenarios:
Automotive Industry
Mass-produces shock absorber springs, door lock springs, engine accessory springs, etc., meeting large-scale supporting needs of the automotive industry.
3C Electronics Industry
Produces charger springs, router accessory springs, earphone springs, etc., adapting to batch assembly needs of electronic devices.
Hardware & Home Appliance Industry
Manufactures refrigerator door springs, washing machine springs, air conditioner accessory springs, etc., supporting stable mass production of home appliances.
Mechanical Equipment Industry
Provides machine tool springs, conveyor equipment springs, printing equipment springs, etc., meeting high-load, long-life requirements of industrial machinery.
Power Tools Industry
Mass-produces electric drill springs, sander springs, cutter springs, etc., adapting to large-scale production needs of power tools.
Security Equipment Industry
Produces surveillance camera springs, alarm device springs, access control system springs, etc., supporting stable supporting needs of security products.
Automotive Industry
3C Electronics Industry
Hardware & Home Appliance Industry
Mechanical Equipment Industry
Power Tools Industry
Security Equipment Industry
Spring Manufacturing FAQs
We can mass-produce a full range of industrial springs including compression springs, extension springs, torsion springs, special-shaped springs, etc., adapting to the batch supporting and continuous production needs of various industries.
We can adapt conventional materials and special materials according to customers' application environment, performance requirements and batch cost budget, balancing product performance and cost-effectiveness of large-scale production.
We support small-batch trial production verification. After the trial production is qualified, it can be quickly connected to large-scale mass production, ensuring that the quality of trial production samples is consistent with mass-produced products without delaying customers' production progress.
According to the rust and corrosion resistance requirements of the application scenario, we can provide a variety of conventional surface treatment methods, and also adapt to customers' customized surface treatment requirements to meet batch supporting standards.
It is recommended to provide spring drawings, batch requirements, delivery cycle, application scenarios and performance requirements. If there are samples, samples can be provided for reference to facilitate rapid docking of mass production scheduling.
We have established a standardized mass production quality control system, strictly controlling the whole process from incoming raw material inspection, production process control to finished product factory sampling inspection, ensuring uniform quality of each batch of products.
We support pre-production sample confirmation. We can make confirmation samples according to the drawings or samples provided by customers, and start large-scale mass production only after the customer accepts the samples to ensure consistency between mass-produced products and confirmation samples.
Yes, we can flexibly adjust the delivery batch and quantity according to the customer's production progress and inventory status, ensuring the customer's continuous production and avoiding inventory backlog or supply shortage.
Customized packaging is supported. According to the customer's warehousing, transportation and assembly needs, we can provide suitable packaging methods to avoid damage during transportation and adapt to batch assembly scenarios.
They can be widely adapted to batch supporting scenarios in industries such as automotive, 3C electronics, hardware and home appliances, mechanical equipment, power tools, security equipment, meeting the supply needs of continuous production.
