Mechanical Climate Components

DGT LG25 Gear Motor

A compact 20 Nm gear motor weighing 4.5 kg, running from a standard 230 V single-phase supply. It suits short vent runs and small screens in orangeries and small glasshouses where space is tight.

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Download the data sheet (PDF)
Main UK DistributorDesign & installation included in every quoteSupported by the team that installs it

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)

Download the data sheet (PDF)

Main UK Distributor

Every product here is supplied through Sitetech as the main UK distributor for DGT by Senmatic — with manufacturer backing behind every installation.

Designed, installed, supported

We don't ship boxes. Each system is specified for your site, installed by our team, and supported by the same people afterwards.

Data sheet on every product

Full technical specifications are a click away — download the PDF data sheet from any product page and check it against your site.

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