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Food industry

Sliding insulated door (negative T°) – SP500

The SP500 negative-temperature sliding insulated door will be used for the access to freezing chambers in meat cutting and food processing plants and for sub-zero storage in frozen food warehouses.

A negative-temperature sliding insulated door built to last!

A reliable, high quality door with its grade 304L stainless steel casing and frame as well as its enhanced insulation (160 mm thick door leaf), it guarantees sub-zero temperatures in refrigerated chambers are maintained.

The SP500 insulated door is made to measure and supplied ready to fit – for a new installation or to replace an existing door.

ADVANTAGES of the SP500 range of negative-temperature sliding insulated doors

  • Insulated with polyurethane foam – CFC-, HFC- and HCFC-free – density 40 kg/m3,
  • Solid and reliable for intensive use
  • Custom made
  • Facings made of pre-coated steel sheet, glass fibre-reinforced polyester or stainless steel to meet different market needs


Food industry

Cold insulation


Professional kitchen

Superior quality

Made to measure

Technical specifications of the SP500 negative-temperature sliding insulated door

Different door frames and mountings

  • Grade 304L stainless steel casing with a stainless steel thermal break inner casing,
  • Grade 304L stainless steel threshold fitted flush with the floor,
  • Entire assembly (door frame + threshold) reheated by a heater cable (220 volts).

Door leaf

  • 160 mm thick, with a polyurethane foam core – CFC-, HFC- and HCFC-free – density 40 kg/m3,
  • Reinforced with stainless steel edging profile,
  • Facings made of pre-coated steel sheet 0.75 mm thick for the SP500 model, glass fibre-reinforced polyester for the SP510 model and stainless steel for the SP520 model,
  • Replaceable EPDM perimeter seals,
  • Internal and external release handles.



Track made of anodised aluminium or grade 304L stainless steel.

SPENLE sliding isothermal door leaf drawing


  • Stainless steel kick plates,
  • Lock with key,
  • PVC or stainless steel pelmet or track cover,
  • Automatic kit.


Adaptations and variants

  • SP500: negative-temperature insulated door – pre-coated steel sheet 0.75 mm thick – RAL 9010
  • SP510 : negative-temperature glass fibre-reinforced polyester insulated door
  • SP520 : brushed grade 304L stainless steel negative-temperature insulated door


SPENLE red sliding isothermal door


Click and download the documents below

More detailed documentation including drawings, BIM files, etc. can be downloaded here.

Examples of uses of sliding insulated doors (for negative temperatures):

  • Negative-temperature sliding insulated doors in frozen food warehouses,
  • Negative-temperature sliding insulated doors in processed food freezing chambers,


blue sliding isothermal door for the food industry

See SPENLE’s other isothermal doors dedicated to the food industry