Product details
The LG25 is the gear motor we choose when the job is small and the space around the vent is tighter still. At 20 Nm and 4.5 kg it sits at the light end of the DGT gear motor series, and it is aimed at orangeries, small glasshouses, lean-to structures and compact screen systems where a larger drive simply will not fit.
Inside, a helical gear stage drives a self-locking worm gear. The helical stage keeps the motor smooth and quiet with very little vibration, while the worm stage holds a vent or screen exactly where it stopped, even when the power is cut. A mechanical limit switch is built in, so the output shaft stops at the same point every cycle. It is simple to set and can be supplied for 15, 20 or 50 rotations between end positions.
Capacity is matched to its size: DGT rates a single LG25 to pull up to 10 m of polycarbonate vent or 7 m of glass. Beyond that, we step up to one of the larger motors in our DGT climate control range. It runs from a standard 1 x 230 V supply, and the closed gearbox needs no routine servicing. A drill coupling for 1 inch inner pipe and the mounting console are included, a profile coupling can be fitted instead, and the motor can be wired to an MR906 motor relay for manual operation.
Choosing the right motor for each vent run is a sizing exercise, and it is one we do on every project. We supply, fit and commission the LG25 as main UK distributor for DGT by Senmatic, and our team stays on hand for any adjustment once the season starts.
Key capabilities
- 20 Nm torque output at 2.0 RPM on a 1 x 230 V supply
- Manufacturer-rated for up to 10 m of polycarbonate vent or 7 m of glass
- Compact, 4.5 kg unit for small greenhouses and orangeries
- Helical stage plus self-locking worm gear for quiet running
- Vent or screen held in position when power is lost
- Built-in mechanical limit switch, simple to set
- Available for 15, 20 or 50 rotations between end positions
- Closed gearbox, no routine maintenance
- Drill coupling for 1 inch pipe and console included
- Motor relay MR906 available for manual operation
Technical specifications
| Torque output | 20 Nm |
|---|---|
| Output speed | 2.0 RPM |
| Max. rotations between limit switches | 15 or 50 (0-15, 0-20 and 0-50 ranges offered) |
| Supply voltage | 1 x 230 V, 50 Hz |
| Current | 0.2 A |
| Power | 20 W |
| Max. window run (manufacturer figure) | 10 m polycarbonate / 7 m glass |
| Net weight | 4.5 kg |
| Dimensions (L x W x H) | 250 / 280 x 194 x 134 / 164 mm |
| Surface temperature | 65 °C under normal operating conditions |
| Standard coupling | Drill coupling for 1 inch inner pipe (profile coupling optional) |



