CD/CG250 CD/CG350 Series Heavy-Duty Hydraulic Cylinder
The series are single-acting differential cylinders including 14 bore sizes and 28 specifications conbined depending on 4 velocity ratioes. Three types of them, front flange mounting, mid-body trunnion and sub-plate mounting type cylinders can be built as double-rod and double-acting constant speed ones. Together with that, with or without cushioning at their both ends, there are 28 specifications and 384 kinds of cylinder. The mounting types and dimensions of this series cylinders are in conformity with ISO 3320 and especially suitable for operating under bad working and heavy-loading conditions. They are widely used in steel works foundry,forging and machine-building industries.
Operating Pressure (Mpa) |
Series CD/CG250: 25, Series CD/CG350: 35 |
Applicable Media | Mineral oil, phosphate ester, and water - glycol |
Operating Temperature (°C) |
- 30 ~ + 100 |
Medium Viscosity (cSt) |
2.8 ~ 380 |
Operating Speed (m/s) |
0.5 (up to 15m/s with special seals) |
Sealing | Dynamic sealing: Type A uses V-type seal group, suitable for high-speed and high-pressure conditions. Type T uses low-friction sliding combined seal, suitable for low-speed and low-pressure conditions. Static sealing: Domestic O-ring is adopted |
Connecting Type of Cylinder Head and Barrel, Air Vent Valve | Type A: Threaded, Flange connection; Type B: Welded cylinder bottom structure, threaded connection at the rod end. One - way valve with plug at the end |
Thread of Oil Port Connection | For all cylinder bores: GB metric fine - thread, also available in British pipe thread standard BSP Whitworth thread, namely Chinese cylindrical pipe thread G |
Mounting Type | Types A, B, C, D, E, F are available |
Piston Rod Material | High-tensile-strength steel and stainless steel X22CrNi17, with hard chromium plating on the surface |