The EP PolyGearbox (RPG) is a compact and light-weight reduction gearbox with a built-in limit switch system that is suitable for assembly of a locally available electric engine. The PolyGearbox is used in manually-controlled or climate-controlled ventilation and display systems in poly greenhouses. The quick and easy-to-installEP PolyGearbox is usually rainproof and windproof. The PolyGearbox has a high protection class (IP65) and can be used within an ambient temperature of 0-60 °C.
The low-noise PolyGearbox includes a gearwheel transmission and a worm wheel transmission, which are integrated within an aluminium precision housing. The self-braking worm wheel tranny means that the drive shaft is definitely locked when the decrease gearbox is not running. The completely sealed reduction gearbox has an expansion chamber with a diaphragm to keep the gear oil at a low pressure under all situations, even at high temps. Thanks to the use of an growth chamber, the PolyGearbox could be installed in any placement. There are no restrictions, because there is no dependence on a bleed connect. The sealed decrease gearbox keeps the gear oil of the PolyGearbox in ideal Gear motors for Greenhouse condition because of its entire operating life time. The PolyGearbox is ideal for discontinuous use, operating class s3-30%, with a maximum activation period of 25 minutes.
The PolyGearbox reduction gearbox comes with an FT85 engine assembly flange, to which a suitable 
IEC standard engine 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 change system is installed in an integrated chamber and is definitely enclosed by an impact-resistant plastic-type cover. The limit change system is accessible and simple to adjust. The limit switch system's maximum switching range can be 40 or 64 revolutions of the drive shaft. The cabling is linked in spring-clip connections. The PolyGearbox has an IP68 M16 x 1.5 cable gland (5-9 mm cable) for the cable feed-through.