Energy & power
6M31 series power generation engines · Weichai
Availability, price and lead time are confirmed after your enquiry. Catalogue inclusion is not a stock promise.
Enquire on WhatsAppManufacturer source ↗Technical tables use display translations outside Chinese. The linked manufacturer catalogue retains the original text. Confirm the full model and nameplate before ordering.
Specifications
- Power range kW/Ps
- 651-880/873-1180
- Maximum torque speed N·m / r/min
- 5602/1500
- Emission standard
- China Non-road Stage III
- Product series
- 6M31
- Fuel
- Diesel
- Engine type
- L type 6 cylinder, four-stroke engine
- Number of cylinders/number of valves
- 6/4
- Bore size × stroke mm
- 149×177
- Displacement L
- 18.5
- Air intake method
- Turbocharged and intercooled
- Compression ratio
- 14:1
- combustion system
- Electronically controlled high voltage common rail
- Engine size (length X width X height) mm
- 1780×1040×1721
- G weight kg
- 1627
Model variants
| Model | Displacement (L) | Number of valves in a single cylinder | Commonly used power/speed (kWm/rpm) | Standby power/speed (kWm/rpm) | Recommended common power of the unit (kWe) | Recommended unit backup power (kWe) | Technical route |
|---|---|---|---|---|---|---|---|
| 6M31D610E310 | 18.5 | 4 | 561/1500 | 610/1500 | 480 | 528 | Electronically controlled high voltage common rail |
| 6M31D640E310 | 18.5 | 4 | 580/1500 | 640/1500 | 520 | 580 | Electronically controlled high voltage common rail |
| 6M31D680E310 | 18.5 | 4 | 640/1500 | 680/1500 | 550 | 600 | Electronically controlled high voltage common rail |
| 6M31D740E310 | 18.5 | 4 | 680/1500 | 740/1500 | 600 | 660 | Electronically controlled high voltage common rail |
| 6M31D800E310 | 18.5 | 4 | 730/1500 | 800/1500 | 640 | 720 | Electronically controlled high voltage common rail |
| 6M31D880E310 | 18.5 | 4 | 800/1500 | 880/1500 | 720 | 800 | Electronically controlled high voltage common rail |