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Mission
To provide reliable, precise, and durable fasteners and full-lifecycle technical support to the global high-end equipment manufacturing industry.
SHANGHAI CAIFU • SINCE 2011
A National High-Tech Enterprise
High-strength fasteners for rail transit, aerospace, mining, marine, and industrial pumps — engineered for extreme conditions.
About Caifu
A National High-Tech Enterprise focused on one thing — high-end fasteners.
Shanghai Caifu Mechanical Co., Ltd. (hereinafter referred to as “Caifu Machinery”) was established in 2011 as a National High-Tech Enterprise specializing in the R&D, design, manufacturing, and sales of high-end fasteners. The company is headquartered in Pudong New Area, Shanghai, with a modern production base in Zhejiang Province, ensuring a well-integrated supply chain and robust manufacturing capacity.
Core Business: High-strength bolts, nuts, washers, and custom non-standard fasteners.
Our core team comprises scholars, engineers, and technical professionals with deep-rooted expertise in the machinery industry. We are committed to continuous innovation and quality excellence across the entire fastener value chain—from raw material selection and machining processes to heat treatment and surface finishing technologies. Backed by stable process capabilities and a rigorous quality management system, our products deliver reliable performance and long-term durability, earning widespread recognition from both domestic and international clients.
Founded
2011
Headquartered in Pudong, Shanghai
Industrial sectors served
6
Rail transit to high-end equipment
Diameter capability
M100
Studs up to 8,000 mm long
Quality management system
ISO 9001
Implemented from design to delivery
Our Story
Mission · Vision · Values
Vision
To become a trusted, technology-driven supplier in the international high-end fastener sector.
Values
- Professionalism
- Reliability
- Innovation
- Mutual Benefit
Team & Culture
Small yet exceptional.Refined yet powerful.
Approximately 50 employees, with a core team of scholars, engineers, and technical professionals.
New employees undergo systematic training and are mentored by experienced senior technicians.
Our philosophy
What our customers expect, we deliver to excellence.
What they haven’t yet anticipated, we foresee and prepare for in advance.
Our Journey
Key Milestones
Standard and non-standard fasteners — drawing-based supply. Final selection is confirmed against industry, standard, grade, and drawing.
2011
Founded with a 5-member team.
2012–2015
Rail brake disc fasteners passed 1.35M km testing and entered the rail market.
2016–2018
Mass supply to CRRC core subsidiaries; expanded into TBMs, chemical and nuclear industries.
2023–Present
Entered the aerospace high-speed forging press sector, with 150+ specifications and zero complaints.
Manufacturing Capabilities
Control at every stage.
Five connected stages — from incoming material inspection to protective packaging and coordinated delivery.
Raw Material Inspection
Incoming materials are checked against specified requirements before entering production.
Precision Forming
Components are formed and machined to the dimensions and geometry defined by the drawing.
Heat Treatment
Heat treatment is controlled to meet the specified grade and mechanical property requirements.
Rigorous Testing
Finished components are checked against agreed requirements before release for delivery.
Packaging & Logistics
Protective packaging and shipment arrangements are coordinated with the order and delivery requirements.
Full in-house process control; surface finishing outsourced to qualified partners.
Qualifications & Recognition
Recognized where it matters.
Enterprise qualifications, intellectual property and key company milestones.
- National High-Tech Enterprise
- National Technology-Based SME
- Registered Trademarks, Invention Patents, Software Copyrights
- 2026: Established a wholly-owned subsidiary, Caifu Machinery (Jiaxing) Co., Ltd.
National High-Tech Enterprise
2022 certificate · Issued 14 Dec 2022. Three-year validity as printed; historical record.
View document ↗
National High-Tech Enterprise
2019 certificate · First recognition, issued 6 Dec 2019. Three-year validity as printed; historical record.
View document ↗
National Technology-Based SME
2025 public notice · Proposed inclusion in the Shanghai technology-based SME list.
View document ↗
National Fastening & Anti-Loosening Competition
Results announcement · Top-six finalist, ranked 5th with an all-metal self-locking nut.
View document ↗
SME Technology Innovation Fund
2015 project contract · Cover page only; not a qualification certificate.
View document ↗Select an image to view the full document page.
Global Reach
Serving customers where reliability is non-negotiable.
Our fasteners ship to equipment manufacturers, engineering contractors and distributors across three market tiers.
Germany
United States
Japan
Switzerland
Norway
Spain
Russia
Middle East
Southeast Asia
- R&D & Quality
Our R&D Center is equipped with a comprehensive range of testing and inspection instruments, covering full-process quality verification from raw materials to finished products.
- Testing & Inspection Equipment
Equipment includes OES, a tensile testing machine, a low-temperature impact tester, fluorescent MPI, an eddy current sorter, an ultrasonic flaw detector, Rockwell and Vickers hardness testers, a vision measuring machine, and a flatness inspection table.
- Standards & Quality System
Standards: GB, DIN, ASME, ISO, TB/T, etc. Quality management system: ISO 9001.
Traceability: 100% batch traceability for raw materials and heat treatment