Pneumatic and hydraulic cylinders and engineering machines, automatic pneumatic and hydraulic machines, plastic spray molding machines, and mechanical holding column shaft centers, etc.
1. Material: the JIS (S45C), SAE 1045 or DIN CK45 bar is treated with precision center-less grinding technique and hard chrome plating technique after hard drawn. It is hard and abrasion proof, also corrosion proof. It is suitable for machining and lathe turning, and machining accuracy meets international standards requirements. 2. Optional product: S45C ground medium carbon steel bar. 3. Optional manufacturing Processes: Center- less grinding and hard chrome plating. 4. Surface hardness: HV 800 (minimum) up. 5. Hard chrome thickness: 20 micron. 6. Surface roughness: Ry 0.6~1.4s, Ra 0.2μm~0.4μm. 7. External diameter accuracy: h7, h8, f8.