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Pallet gate used in opening with inward opening doors

Client: Clean Room Construction Company

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Requirement: Pallet Gate for a high-level doorway. 


  • Inward opening doors for pallet loading.
  • Very low headroom due to external overhang and even less headroom inboard of doors with sloping beam and light fittings.
  • Narrow ledge outboard of doors when closed made externally mounted gate impossible.
Sigma pallet gate for doorway
Sigma Gate shown closed outside clean room doors


  • Supply of  Sigma model combination low headroom double pivot edge gate mounted outboard of doors with pull down inner gate.
  • The connection of mechanism between both gates made through drilled holes in wall either side of door frame.
  • To save space when not in use, the side frames were made shorter than the pallet. The inner gate height allowed gate to swing back over to clear the rear of the pallet
  • Design allows the operator to open doors with edge barrier closed. This allows them to pull down the inner gate safely
  • Protects all personnel on the upper level whilst pallet loading is carried out.  Once the pallet has been safely landed the operator can fold back
    up the inner gate which closes the edge gate allowing safe access to the pallet.
  • Successful installation carried out by the client.
Sigma pallet gate for doorway Sigma pallet gate for doorway Sigma pallet gate for doorway
Sigma gate open outside clean room doors Sigma gate with open inner gate in clean room Sigma gate with inner gate shut in clean room


Customer feedback:

'Very impressed - I'm sure we will do business again in the future.
Jim Muir

Sigma Gate Features and benefits:

  • Galvanised Tubular steel construction
  • Supplied ready for simple installation (Partially dismantled for shipment)
  • High load clearance 
  • Clear of floor edge when open or closed
  • Balanced action provides easy opening
  • All parts are replaceable
  • Separates people from moving loads and falling from unprotected edge
  • Allows clear view of operation
  • Reinforces sense of security
  • Failsafe operation
  • The Sigma gate has a unique folding mechanism. 

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The pallet gate design and manufacturing services (To ISO 9001)  provided by our in-house mezzanine barrier division meet the recommendations of the Health and Safety Executive

 Do you need help in providing a suitable HSE recommended double barrier system for you loading operation? - We here to help!

 You can select from many different models in the Safety Pallet Gates section of this website.  You will also find a helpful 'How do I select the right pallet gate?' guide.  Or on each of the model pages, there is detailed information on what the model does and the full dimensions etc.  Plus there is a specific enquiry form for custom application for you to use. 

Not sure which model you need?

 You can use our easy-to-use online Enquiry Form - Just select the one which covers your particular application to tell us what your exact requirements are and we will provide a no-obligation, competitive quotation for the right type of safety gate to meet your safety requirements.  Alternatively, you can call our sales team to discuss your problem in more detail.  For the UK call 0161 223 1990 or International  calls to +44 161 223 1990 or by email to