About Changzhou ST. Key Machinery Co., Ltd
Changzhou ST. Key Machinery Co., Ltd is a premier manufacturer and exporter of industrial rollers based in Changzhou, China. With over 25 years of expertise in roller manufacturing, the company has established itself as a trusted partner for clients across the globe, maintaining an export ratio of 80% – 90% and generating annual sales between USD 1.5 million and USD 2 million.
Comprehensive Product Range
ST. Key Machinery offers an extensive portfolio of precision-engineered rollers, serving diverse industries including leather processing, plastic extrusion, printing, packaging, textile manufacturing, and metal forming:
- Embossing Rollers: Custom grain patterns for leather, flooring, PVC, PE, PP, ABS, and wood-plastic composite decking
- Leather Embossing Rollers: High-precision engraved cylinders for bag, sofa, garment, and notebook leather finishing
- Steel Embossing Rollers: Stainless steel and gravure rollers for textile and printing applications
- Industrial Steel Rollers: Heavy-duty machine and printing press rollers with chrome plating up to 0.12mm
- Anilox Rollers: Ceramic-coated rollers with plasma-sprayed layers for flexographic printing
- Mirror Rollers: Precision chrome-plated finishing and calender rollers for high-gloss surface applications
- Chill Rollers: Multi-flow cooling design for temperature-controlled processing lines
- Industrial Rubber Rollers: Nitrile and rubber-coated rollers for printing and coating machinery
- Knurled & Matt Finish Rollers: Custom surface-textured rollers for heat transfer and specialty finishing
Technical Excellence & Quality Assurance
| Specification |
Detail |
| Max Roll Diameter |
Up to Φ1000mm |
| Max Roll Length |
Up to 6000mm |
| Chrome Plating Thickness |
0.03 – 0.12mm |
| Concentricity TIR |
≤ 0.01mm |
| Roll Body Material |
45# Seamless Steel, 20# Steel, 42CrMoA Alloy Steel |
| Surface Finishes |
Mirror Polish, Sand, Spray, Chemical Corrosion, Laser Engraving, CNC Cutter |
| Standards |
ANSI, ASTM, ASME, DIN, GB |
| Production Capacity |
6,000+ PCS per year |
| Lead Time |
2 – 3 weeks (subject to specifications) |
Competitive Advantages
- Decades of Expertise: More than 25 years of specialized experience in roller design and manufacturing
- World-Class Quality: Rigorous quality control with complete cell-volume testing reports for anilox rollers
- Advanced Equipment: ALE fiber laser engraving machines ensuring precise cell geometry and smooth cell walls
- Lean Manufacturing: 5S management system with continuous improvement programs
- Fast Turnaround: High production capacity in China with 2-3 week standard lead times
- Custom Solutions: All products manufactured to customer technical drawings and specifications
- Global Reach: 80% – 90% export ratio serving clients worldwide with standard export packaging
Partner With Us
Whether you need a single custom embossing roller or a complete set of industrial rollers for your production line, ST. Key Machinery delivers precision, quality, and reliability. Our engineering team works closely with clients from design to delivery, ensuring every roller meets exact application requirements.
For inquiries, specifications, or a quote, please contact us through our website or reach out to our sales team directly.
Your message must be between 20-3,000 characters!
