The EP PolyGearbox (RPG) is a compact and lightweight reduction gearbox with an integrated limit switch system that is suitable for assembly of a locally available electric electric motor. The PolyGearbox is utilized in manually-controlled or climate-managed ventilation and screen systems in poly greenhouses. The quick and easy-to-installEP PolyGearbox is definitely rainproof and windproof. The PolyGearbox includes a high protection class (IP65) and can be used in an ambient temperature of 0-60 °C.
The low-noise PolyGearbox includes a gearwheel transmission and a worm wheel transmission, which are integrated in an aluminium precision housing. The self-braking worm wheel transmitting means that the drive shaft is usually locked when the reduction gearbox isn’t running. The fully sealed reduction gearbox comes with an expansion chamber with a diaphragm to keep carefully the gear essential oil at a low pressure under all situations, even at 
high temperatures. Thanks to the use of an expansion chamber, the PolyGearbox can be installed in any placement. There are no restrictions, because there is no dependence on a bleed plug. The sealed decrease gearbox keeps the gear oil of the PolyGearbox in ideal condition for its entire operating life time. The PolyGearbox is suitable for discontinuous use, working course s3-30%, with a maximum activation period of 25 minutes.
The PolyGearbox reduction gearbox has an FT85 engine assembly flange, to which the right IEC standard electric motor can easily be installed (EN 50347).
The PolyGearbox has a rotating limit switch system with operating switches and circuit breakers (NC contacts) for turning off at the end positions. The limit switch system is installed in an included chamber and is enclosed by an impact-resistant Gear motors for Greenhouse plastic cover. The limit change system is accessible and easy to adjust. The limit switch system’s maximum switching range is usually 40 or 64 revolutions of the drive shaft. The cabling is connected in spring-clip connections. The PolyGearbox comes with an IP68 M16 x 1.5 cable gland (5-9 mm cable) for the cable feed-through.