Tonkee Machinery Logo
SG025 Hydraulic Pump Parts
| SG025 Main Pump Parts | SG015 Main Pump Parts | Hydraulic Pump Repair Kit (Universal for Target Models) | |
|---|---|---|---|
| Applicable Excavator Models | KOBELCO SK60, Hyundai R55, Hitachi ZAX70/EX60-5 | Same as SG025 (optimized for low-displacement pumps) | KOBELCO SK60, Hyundai R55, Hitachi ZAX70, Hitachi EX60-5 |
| Applicable Pump Type | Gear pump/vane pump (main pump of target excavators) | Gear pump/vane pump (smaller-displacement main pump) | Matches original main pump type of each excavator model |
| Core Components (Parts) | Rotor, stator, vane, pressure plate, drive shaft | Rotor, stator, vane, bearing, oil seal | 1. Wearing parts: Rotor, stator, vane, pressure plate 2. Sealing parts: O-rings, oil seals, gasket sets 3. Fasteners: Bolts, washers (stainless steel) |
| Material | – Rotor/stator: High-strength cast iron (HT300) with quenching treatment (hardness: HRC 50-55) – Vane: Carbon fiber-reinforced PTFE – Bearing: Chrome steel (SUJ2) |
Same as SG025 (adjusted for size) | Same as SG025/SG015 parts (sigilli: Nitrile rubber/NBR for oil resistance) |
| Operating Pressure Range | 20-25 MPA (continuous); 28 MPA (peak) | 18-22 MPA (continuous); 25 MPA (peak) | Consistent with original pump (20-28 MPA, depending on model) |
| Operating Temperature Range | -20°C ~ 80°C | -20°C ~ 80°C | -20°C ~ 80°C |
| Recommended Hydraulic Oil | ISO VG 32-68 anti-wear hydraulic oil (HLP/HV) | ISO VG 32-68 anti-wear hydraulic oil (HLP/HV) | ISO VG 32-68 anti-wear hydraulic oil (HLP/HV) |
| Oil Cleanliness Requirement | ISO 4406 Class 18/15 | ISO 4406 Class 18/15 | ISO 4406 Class 18/15 |
| Peso (Approx.) | 1.2-1.5 kg (per set of core parts) | 0.8-1.0 kg (per set of core parts) | 2.0-2.5 kg (complete kit) |
