Leading Manufacturer of Machine Safety Products and Guard Interlocking Systems

Product range approvals:

Conveyor Belt Alignment Switches for Explosive Environments (Die Cast)

In electrical and safety engineering, hazardous locations are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapours, dust and fibres which are combustible or flammable.

IDEM’s range of conveyor belt alignment switches have been developed to operate in explosive environments. The internal contact block has been third party approved by IECEx to the latest ATEX standards.

Conveyor Belt Alignment switches are mounted on sections of plant conveyors to protect against excessive belt drift due to an unintentional movement. They can be fitted at appropriate points along the conveyor length to ensure that should the belt position drift, the roller arm of the switch will move to a pre-determined position and cause activation of a control circuit.

Each standard sized belt alignment switch contains two sets of contacts, one which indicates a warning signal (for maintenance purposes) and the other a stop signal, disconnecting the outputs and stopping the belt.

All switches conform to European Standard IEC 60947-5-1 and provide positively operated contacts at the point of tripping. They can be used to satisfy the requirements of EN 620 with regard to conveyor control hazards caused by shifting of the belt position during running. They are available in different roller diameters to provide heavy duty performance and long life.

The rollers are also manufactured from stainless steel and are designed for use in heavy duty areas to maintain conveyor belt alignment and prevent belts running out of alignment and causing damage to both the line and products.

Product range features:

  • Material: Die-Cast Body / Stainless Steel Roller
  • Ingress Protection: IP67
  • Operating Temperature: -20C to 60C
  • Operating Torque: 3.0 – 5.0Nm
  • Warning Signal: 10 – 18 degrees
  • Stop Initiated: 15-35 degrees

Belt Alignment Switch – Explosion Proof, Heavy Duty, 35mm Diameter with 120mm Length Roller (500021)

IDEM’s die-cast heavy duty conveyor belt alignment switches are designed for use on the running edge of conveyor belts. They are suitable for both indoor and outdoor use and can withstand extreme weather conditions.
  • Body Material: Die-Cast Metal Body / Stainless Steel Roller
  • Ingress Protection: IP67
  • Contacts: 2-Pole or 4-Pole Ex Rated Contact Blocks
  • Zones: 1, 21, 2, 22
  • Ex Marking: Exd IIC T6 (-20 ≤ Ta ≤ +60C) Gb / Ex tb IIIC T85C (-20 ≤ Ta ≤ +60C) Db
NOTE: Comes with 3m of pre-wired cable (longer available on request).

Belt Alignment Switch – Explosion Proof, Heavy Duty, 35mm Diameter with 230mm Length Roller (500051)

IDEM’s die-cast heavy duty conveyor belt alignment switches are designed for use on the running edge of conveyor belts. They are suitable for both indoor and outdoor use and can withstand extreme weather conditions.
  • Body Material: Die-Cast Metal Body / Stainless Steel Roller
  • Ingress Protection: IP67
  • Contacts: 2-Pole or 4-Pole Ex Rated Contact Blocks
  • Zones: 1, 21, 2, 22
  • Ex Marking: Exd IIC T6 (-20 ≤ Ta ≤ +60C) Gb / Ex tb IIIC T85C (-20 ≤ Ta ≤ +60C) Db
NOTE: Comes with 3m of pre-wired cable (longer available on request).

Belt Alignment Switch – Explosion Proof, Heavy Duty, 50mm Diameter with 170mm Length Roller (500091)

IDEM’s die-cast heavy duty conveyor belt alignment switches are designed for use on the running edge of conveyor belts. They are suitable for both indoor and outdoor use and can withstand extreme weather conditions.
  • Body Material: Die-Cast Metal Body / Stainless Steel Roller
  • Ingress Protection: IP67
  • Contacts: 2-Pole or 4-Pole Ex Rated Contact Blocks
  • Zones: 1, 21, 2, 22
  • Ex Marking: Exd IIC T6 (-20 ≤ Ta ≤ +60C) Gb / Ex tb IIIC T85C (-20 ≤ Ta ≤ +60C) Db
NOTE: Comes with 3m of pre-wired cable (longer available on request).

Miniature Belt Alignment Switch – Explosion Proof, 22mm Diameter with 70mm Length Roller (HLM-CBA)

IDEM’s die-cast miniature conveyor belt alignment switches are designed for use on the running edge of conveyor belts. They are suitable for both indoor and outdoor use and can withstand extreme weather conditions. Unlike the larger belt alignment switches, the mini duty versions only feature a stop signal. Choice between a plastic and stainless steel roller.
  • Body Material: Die-Cast Metal Body / Stainless Steel or Plastic Roller
  • Ingress Protection: IP67
  • Contacts: 2-Pole or 4-Pole Ex Rated Contact Blocks
  • Zones: 1, 21, 2, 22
  • Ex Marking: Exd IIC T6 (-20 ≤ Ta ≤ +60C) Gb / Ex tb IIIC T85C (-20 ≤ Ta ≤ +60C) Db
NOTE: Comes with 3m of pre-wired cable (longer available on request).