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Phone
+86-519-86541389
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Address
No.5 Industrial Road Panjia Industrial Zone. Xueyan Town, Wujin District, Changzhou City,Jiangsu Province China.
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E-mail
JIANGSU YING NAISI MACHINERY MANUFACTURING CO.,LTD
Founded in 2005, Jiangsu YingNaisi is a specialized manufacturer focusing on precision cold-drawn steel tubes and hydraulic cylinders. The company covers an area of 16,800 m² and employs over 90 staff members, including an experienced management team, dedicated R&D engineers, and a strict quality inspection department. In 2024, the company achieved an annual sales revenue of RMB 95 million.
Our Advantages
With over 20 years of manufacturing experience, Jiangsu YingNaisi is committed to delivering reliable, high-quality products to every customer. Our products are exported worldwide and have earned long-term trust from clients and partners.
Mission
We uphold the philosophy of "Growing with customers, ensuring their satisfaction, and achieving mutual success." Guided by continuous innovation and technology-driven development, we strive to provide global customers with superior products and the best service.
Milestones
2005,Jiangsu YingNaisi was established, specializing in precision cold-drawn steel tubes.
2017,The Hydraulic Cylinder Division was founded, and the brand "YZD Hydraulic Cylinders" was launched.
In the future ,we Committed to continuous innovation and becoming a trusted partner for global customers.
Production Capacity
Steel Tube Division
Equipped with 250T and 300T high-precision cold-drawing hydraulic units, 180LD five-roller precision rolling mills, and multiple skiving & roller burnishing machines, with an annual production capacity of 15,000 tons of precision cold-drawn tubes.
Hydraulic Cylinder Division
Equipped with 18 CNC machining centers, 5 automatic welding lines, 2 cleaning lines for cylinder components, 2 assembly lines, 4 performance test benches, and 2 coating lines, with an annual output of 50,000 hydraulic cylinders.
Product Application
Precision Cold-Drawn Tubes
Petrochemical industry (pigging pipelines, pump housings for oil wells)
Textile industry (spinning machine spools, aluminum foil mandrels)
Hydraulic Cylinders
Metallurgy equipment (heavy-duty cylinders)
Hydraulic structures (gate hoist cylinders)
Construction machinery cylinders
Special vehicles (sanitation trucks, wrecker trucks)
Agricultural machinery cylinders
Lifting equipment cylinders
Our products are exported to Southeast Asia, the Middle East, Europe, and the Americas.
We have established long-term partnerships with world-renowned enterprises and provide OEM services for the modern hydraulic industry.
Precision Cold-Drawn Tubes
Annual sales over 8,000 tons
Hydraulic Cylinders
Annual sales over 20,000 units
our services
Pre-Sales Service
Technical consultation and customized solutions: professional advice on tube materials (carbon steel, stainless steel, etc.) and cylinder structures; technical review based on customer drawings.
Small-batch sample production available.
Factory visits or online audits to showcase production processes and quality systems.
Fast quotation and lead time estimation.
In-Sales Service
Transparent production updates: regular feedback on raw material procurement, machining, and quality checkpoints.
Strict quality control with detailed inspection reports.
Flexible logistics solutions (land, sea, or special transportation) with installation guidance for large hydraulic cylinders.
After-Sales Service
Hydraulic cylinder installation and commissioning support: remote or on-site engineering guidance for system integration.
12-month warranty: free replacement or repair for non-human damages.
Regular follow-ups on equipment performance and preventive maintenance recommendations (e.g., seal replacement cycles).