ERPG Gearboxes for greenhouse



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 motor. The PolyGearbox is used in manually-controlled or climate-controlled ventilation and screen systems in poly greenhouses. The quick and easy-to-installEP PolyGearbox is rainproof and windproof. The PolyGearbox has a high protection class (IP65) and can be used in an ambient temperature of 0-60 °C.

The low-noise PolyGearbox has a gearwheel transmission and a worm wheel transmission, which are integrated in an aluminium precision housing. The self-braking worm wheel transmission ensures that the drive shaft is locked when the reduction gearbox is not running. The fully sealed reduction gearbox has an expansion chamber with a diaphragm to keep the gear oil at a low pressure under all circumstances, even at high temperatures. Thanks to the use of an expansion chamber, the PolyGearbox can be installed in any position. There are no restrictions, because there is no need for a bleed plug. The sealed reduction gearbox keeps the gear oil of the PolyGearbox in optimal condition for its entire operating lifetime. The PolyGearbox is suitable for discontinuous use, operating class s3-30%, with a maximum activation time of 25 minutes.

The PolyGearbox reduction gearbox has an FT85 motor assembly flange, on to which a suitable IEC standard 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 integrated chamber and is enclosed by an impact-resistant plastic cover. The limit switch system is accessible and easy to adjust. The limit switch system’s maximum switching range is 40 or 64 revolutions of the drive shaft. The cabling is connected in spring-clip connections. The PolyGearbox has an IP68 M16 x 1.5 cable gland (5-9 mm cable) for the cable feed-through.

The PolyGearbox comes with 16 teeth 5/8”x3/8” sprockets, keys and fasteners. The accompanying chain couplings and assembly plates are available as accessories.

+86-13205713851 PolyGearbox RPG:

  • Maximum drive torque of 150 Nm or 450 Nm.
  • Rotational speeds of 3 or 5 rpm for a mains frequency of 50 Hz or 3.6 or 6 rpm for a mains frequency of 60 Hz in case of application of 4-pole electric motor.
  • Protection class IP65.
  • Can be used in ambient temperatures of 0-60°C.
  • Suitable for discontinuous use, operating class s3-30%, maximum activation time 25 minutes.
  • Equipped as standard with 16-tooth galvanised chain coupling 5/8″x3/8″.
  • FT85 motor assembly flange for installation of IEC standard motor (EN 50347).
  • Maximum switching range of limit switch system 40 or 64 revolutions of the drive shaft.
  • IP68 M16x1.5 cable gland for cable feedthrough (5-9 mm cable).