Since 1995 / Precision Spring Manufacturer

Cixi Dili Spring Co., Ltd.

Over 30 years of industrial spring manufacturing experience, a plant of about 20,000 m², covering JIS / US / ISO die springs, round-wire springs and custom manufacturing to drawing.

View Product CatalogDie spring spec lookup

Founded1995Long-term service to industrial spring and die spring customers

Plant Area20000m²Production base of about 20,000 m²

Engineering Team30+Spring engineers and manufacturing specialists working together

Quality SystemISOISO 9001 / IATF 16949

Company Profile

Dingli Spring has invested over 70 million yuan in its early stage, including about 20 million yuan in equipment, building complete manufacturing capabilities around standard parts inventory, custom processing, engineering review and quality inspection.

Cixi Dili Spring Co., Ltd. was founded in August 1995 and is a professional spring manufacturer with over 30 years of industry experience. Our main products include die springs (JIS, US and ISO series), compression springs, extension springs, torsion springs and wire forming springs.

The company has more than 30 spring engineers and manufacturing specialists, with a core team that has long served the manufacture of die springs, industrial springs and non-standard formed parts. Standard parts are managed around inventory and delivery speed, while custom parts proceed through drawing review, sample confirmation, production inspection and batch delivery.

Core Products and Services

From common standard parts to custom non-standard structures, we provide practical spring solutions around procurement selection, sample validation and batch delivery.

Die Springs

JIS (Japanese), US and ISO series, used in molds, fixtures and stamping equipment.

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Round-Wire Springs

Compression, extension and torsion springs customized by wire diameter, outer diameter, length, load and end configuration.

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Wire Forming Springs

Clips, shaped wire forming parts and non-standard elastic structures, suited to volume assembly needs.

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Custom Manufacturing to Drawing or Sample

Materials, processes and volume plans are assessed based on drawings, samples, operating conditions and target lead time.

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Manufacturing Capabilities and Delivery Data

We put plant scale, specification range, inventory and quality system up front, so procurement and engineering can quickly judge whether it makes sense to send a drawing for an inquiry.

20000m²Building AreaProduction base of about 5 acres

6000m²Warehouse AreaTens of thousands of standard spring SKUs with fast shipping capability

7000million+Total InvestmentEarly-stage fixed assets and equipment investment

2000million+Equipment InvestmentSpring coiling, heat treatment, grinding and inspection equipment

30+EngineersProfessional spring engineers and manufacturing specialists

30years+Industry ExperienceFounded in 1995

Φ0.2-20mmWire Diameter RangeCovering precision small springs to heavy-duty industrial springs

2Quality SystemISO 9001 (2019) and IATF 16949 (2022) certified

Our History

From local manufacturing in Cixi to a standard parts catalog, team expansion, smart manufacturing and collaboration with global industrial customers, we continue to build up our spring manufacturing capabilities.

1995

A Start-Up Rooted in Cixi

Dingli Spring began as a family workshop, working deeply in standard, custom and formed spring parts to lay the foundation for precision manufacturing.

2006

Brand Growth, Standards Leadership

Launched the “Xin Dong Fa Zhu” brand and compiled a spring selection catalog, strengthening standardized products and fast selection capabilities.

2008

Strategic Expansion, a Stronger Team

Built sales, engineering, manufacturing and after-sales teams, gradually forming a service system combining standard parts supply and non-standard customization.

2016

Smart Manufacturing Upgrade, Global Vision

Established faster response mechanisms, with products reaching automotive safety, high-end medical, hydraulic, power transmission and automation equipment applications.

2018

Product Extension, Precision Service

Expanded compression, extension, torsion, wire forming and shaped spring product lines, with engineers providing end-to-end support.

Today

Digital Collaboration, Long-Term Operation

Continuously improving the website, spec lookup, product content and inquiry process, serving more domestic and international companies with high-quality manufacturing.

Certifications

Certified by international authorities, supporting tooling, automotive and industrial customers in auditing supplier quality systems.

**ISO 9001**Quality Management System · EN

**IATF 16949**Automotive Quality Management · EN

Customers

Our products are widely used in automotive, electronics, machinery, automation, healthcare, hydraulic and power transmission applications.

Factory Photos

From the plant overview, steel storage, spring coiling and spring grinding to heat treatment and the standard parts warehouse, showing real production and delivery scenes.

Die Spring Production Process

Mature spring production processes and skilled technical staff, combined with strict inspection standards, ensure product quality and batch consistency.

01Produced to JIS / ISO standards

Quality-system certified; drawings, specifications, materials and acceptance requirements are confirmed first.

02Steel Reserves

Over 1,000 tons of quality steel in reserve support standard and custom part production, controlling material consistency at the source.

03Imported Spring Coiling Equipment

Coiling and forming completed according to wire diameter, outer diameter, number of coils and free length.

04Quenching and Tempering Heat Treatment

Heat treatment improves elasticity, hardness and fatigue life.

05High-Temperature Pre-Setting

Eliminates residual stress and reduces the risk of fracture and deformation.

06Automated End-Face Grinding

Controls end-face flatness and assembly accuracy to suit mold and equipment installation.

07Comprehensive Inspection and Testing

Dimensions, load, appearance and batch records are inspected, with quality documentation provided as required.

08Marking and Custom Information

Marking by model, parameters or customer requirements, supporting OEM / ODM collaboration.

09Warehousing and Fast Shipping

Tens of millions of standard parts in stock and custom batch delivery are managed on separate paths to improve response efficiency.

Typical Application Industries

Understanding spring requirements by industry and operating condition helps procurement, engineering and maintenance teams judge materials, structures and delivery faster.

Automotive Parts

Volume collaboration under the IATF 16949 system

Electronics and Appliances

Small precision springs and wire forming parts

Tooling and Stamping

Die spring, return and load-bearing applications

Automation Equipment

Fixture, return, tensioning and positioning mechanisms

Hydraulic and Power Transmission

Durable, stable and volume spare-part needs

Healthcare

Material, surface and consistency requirements

Machinery Equipment

Compression, extension, torsion and non-standard springs

Hardware Mechanisms

Doors and windows, locks, fixtures and general structures

Location preview

No. 211 Wei'er West Road, Cixi, Ningbo, Zhejiang, China

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Visit and Contact

Domestic customers can enter our unified inquiry process with drawings, samples, materials, quantities and lead-time requirements, or visit the plant by the address below to discuss projects.

The company is located at No.211, Wei Er West Road, Chongshou Town, Cixi City, Zhejiang Province, China, providing standard parts supply and non-standard customization services to tooling, automotive, electronics, automation, hydraulic and machinery equipment customers.

To improve response efficiency, we recommend providing drawings or sample photos, target quantity, material requirements, operating conditions and target lead time all at once, so that sales and engineering can evaluate them together.

View Product Catalog

Start an inquiry once you have your drawing, sample or requirement description ready

Submitting quantity, material, operating conditions and target lead time together makes it easier for sales and engineering to jointly assess manufacturability, materials, processes and delivery pace.

View Product Catalog