Key Technical Advantages & Process Innovation

Dear valued customers,

Technological innovation and process optimization are the core driving forces of sustainable enterprise development. For 18 consecutive years, Carridea has been deeply rooted in the precision steel tube industry, focusing on independent technological research, production process upgrading and product performance iteration. Adhering to the concept of quality-driven and innovation-led development, we have accumulated profound technical experience and mature manufacturing systems. Our persistent innovation capabilities and stable product quality have enabled our precision steel tube products to gain outstanding competitiveness and wide recognition in the global market.

We boast a series of core technical advantages that differentiate our products from peers, covering material research, precision processing, finishing treatment, integrated production and full-range quality control.

In terms of 27SiMn Material Deep Cultivation, we have conducted long-term and systematic in-depth research on 27SiMn alloy steel, the core material for hydraulic cylinder tubes. By precisely adjusting chemical composition proportion and optimizing professional heat treatment processes including quenching and tempering parameters, we effectively enhance the overall mechanical properties of the material. Our optimized materials feature significantly improved structural strength, impact toughness and anti-fatigue performance, enabling our 27SiMn hydraulic cylinder tubes to adapt to high-pressure and high-load working scenarios, maintaining a leading position in the industry in terms of stability and durability.

Our mature Precision Cold Drawing Technology adopts a scientific multi-pass cold drawing process matched with imported high-precision die sets. This advanced manufacturing method eliminates material deformation errors and surface defects caused by traditional processing, ensuring ultra-high dimensional accuracy and smooth surface finish of cold-drawn steel tubes. The dimensional tolerance of our finished products can be strictly controlled within ±0.02mm, fully meeting the stringent precision requirements of mechanical equipment manufacturing.

Equipped with fully automatic CNC honing and skiving & roller burnishing integrated equipment, our High-Efficiency Honing & Skiving Technology achieves micron-level precision processing on the inner wall of steel tubes. The inner diameter surface roughness is stably controlled at Ra ≤ 0.4μm. The super smooth inner wall effectively enhances the tightness of the hydraulic system, reduces internal friction and wear of parts, and greatly extends the service life of hydraulic equipment.

We have built a complete Integrated Production Process, realizing one-stop integrated manufacturing from raw material screening, cold drawing forming, heat treatment modification, precision honing to finished product machining. The streamlined production mode eliminates intermediate circulation links, effectively reduces production costs and shortens delivery cycles. Meanwhile, standardized process management ensures consistent batch stability of products.

In terms of quality assurance, we implement Strict Quality Control Technology, adopting 100% full-item inspection and professional non-destructive testing covering ultrasonic and magnetic particle testing. We eliminate defective products from the source, achieving a product qualification rate of 99.99% and providing reliable quality guarantees for global customers.

Supported by a professional R&D team of senior engineers and technical backbones, we keep track of global industry frontier trends and personalized customer demands. We also carry out in-depth industry-university cooperation with domestic universities and research institutions to tackle technical difficulties and iterate innovative processes. Our technical and process strengths enable us to deliver high-quality and cost-effective products, and we look forward to in-depth cooperation with global customers to create mutual value.