CMM-G wind turbine gearbox oil changer (with dimensions adapted to the customer’s trailer ones)
The CMM-G unit is designed for changing oil in wind turbine gearboxes including draining, flushing and refilling. The CMM-G can also heat clean oil before refilling gearbox if necessary. The adaptation of unit’s overall dimensions to the dimensions of the customer’s trailer is a feature of this model.
The equipment is able to function with mineral and synthetic oils of the following properties:
- kinematic viscosity at 40°С, mm2/s – 8-320;
- density at 20°С, kg/m3 – 800-900;
- ISO6 4406 purity class – 14 min.
Principle of operation
It is possible to use the CMM-G unit in six operation modes:
- filling gearbox with clean oil;
- pumping used oil out of the gearbox;
- heating oil before filling the gearbox;
- draining used oil from the CMM-G unit;
- washing the gearbox inside with flushing oil;
- pumping oil from tank to tank.
To supply power to the unit you can use the built-in generator or an external three-phase alternating current network. If the generator is switched on, the possibility of unit functioning in multiple modes simultaneously is blocked.
| № |
Parameter |
Value |
| 1 |
Oil output rate, m³/h, min (at oil temperature 50°C) |
0,5 |
| 2 |
Oil drain rate, m³/h, min (at oil temperature 50°C min) |
0,25 |
| 3 |
Clean oil tank size, l, max |
1250 |
| 4 |
Flushing oil tank size, l, max |
630 |
| 5 |
Pumped oil temperature in heating mode, °C, max |
65 |
| 6 |
Output oil pressure, MPa, min |
10 |
| 7 |
Oil heater #1 power consumption, kW, max |
6,0 |
| 8 |
Oil heater #2 power consumption, kW, max |
6,0 |
| 9 |
CMM-G power consumption, kW, max |
11 |
| 10 |
Power supply: · voltage, V · AC frequency, Hz |
Customer determines parameters |
| 11 |
Overall dimensions, mm, max · length · width · height |
4960 2260 1560 |
| 12 |
Weight, kg, max |
2800 |
- unit performs all technological operations related to changing oil in wind turbine gearboxes;
- unit is based on the frame, and the unit dimensions are adapted to the customer’s trailer dimensions;
- the clean oil tank capacity has been increased to 1250 liters;
- there is a built-in generator to power the unit if grid connection is unavailable.