Deep-freeze industrial doors engineered to seal at −30 °C and below — heated tracks, cold-flexible seals and high-density insulation that will not ice up.
A cold storage door built for extreme low-temperature duty: thick insulated panels, anti-freeze heated frames and fast operation that limits warm-air ingress. Validated from −30 °C cold storage to +50 °C desert, custom built from prototype to container-load, full order flexibility.
In a deep-freeze room, a door that ices up or leaks warm air burns energy and stops the line. This range is engineered specifically for extreme cold.
Every detail is chosen for low-temperature duty: a high-density PU foam core for thermal resistance, silicone rubber seals that stay flexible when ordinary rubber goes brittle, and a heated frame and track that prevent condensation from freezing the door shut. Fast powered operation keeps the opening time short, so warm, moist air cannot flood the room and form ice.
RAX validates cold storage doors from −30 °C up to +50 °C, so the same engineering discipline covers both deep freeze and the desert-duty heat that breaks lesser doors. Configuration can be a fast vertical-lift door for high-traffic routes or an insulated sliding door for larger openings — selected to your throughput and opening size.
RAX company facts are from the approved brand brief. Industry-typical values are labeled in the Basis column and confirmed against your technical layout.
Every door is engineered to your opening. The values below are the validated baseline; final figures are confirmed on your specification.
| Parameter | Specification | Basis |
|---|---|---|
| Door Type | Insulated fast vertical-lift or insulated sliding door, selected to throughput and opening. | Per project |
| Temperature Range | Validated from −30 °C to +50 °C; deep-freeze rooms down to −30 °C and below on request. | RAX-measured |
| Panel | High-density PU foam core, 40–50 mm and up, with galvanized or stainless steel skins. | RAX-measured |
| Thermal Performance | Insulated construction supporting up to U-value 0.33 W/m²K panel-level thermal performance. | Marketing value |
| Anti-Freeze | Heated frame / track option prevents condensation icing and freeze-lock. | RAX |
| Sealing | Cold-flexible silicone rubber perimeter seals; double-seal compression on request. | RAX |
| Cycle Life | 100,000 cycles validated in the RAX fatigue test lab. | RAX-measured |
| Operation | Fast powered operator with servo / VFD drive; radar, geomagnetic and light-curtain sensing. | RAX |
| Safety | Anti-pinch safety edge, bottom air-bag sensor, photo-eye / light curtain. | RAX |
| Finish | Full RAL custom; food-grade stainless steel skins available for hygiene zones. | RAX |
Room temperature, throughput and opening size drive the configuration — we confirm panel thickness, heating and sensing on the technical layout before production.
Validated substrates, processed in-house on an auto PU foam panel line and CNC punching/bending centre.
Match the door to the opening duty — keep each card to one line.
Your installers get the full document set before the door ships.
Certificates we hold today, and the project-specific test data we arrange against the matching standard.
Rigorous 100,000-cycle fatigue testing protocols, validated galvanized steel and aluminum alloy materials, and precision servo-drive manufacturing — documented on every order.
Large industrial doors from prototype to container-load delivery.
OEM/ODM is the core of what we do: panel thickness, heating, opener matching and manual translation are all tailored to your room and your market — under NDA protection.
From custom engineering to container-load delivery — the document set your local installers need.
Door body 2 years · operator / motor 3 years (servo motor 5 years) · free spare parts within warranty, DHL/FedEx 5–7 days · tooling & technical drawings archived up to 5 years.
Doors are validated from −30 °C cold storage up to +50 °C desert duty, and deep-freeze rooms at −30 °C and below are handled with the right panel thickness, seals and heated frame. Tell us your room set-point and we engineer the build to match.
A heated frame and track option keeps guides and seals free of condensation ice, so the door never freezes shut. Cold-flexible silicone rubber seals stay elastic at low temperature where ordinary rubber goes brittle and leaks.
For frequent forklift traffic we recommend a fast vertical-lift door — short open time limits warm, moist air ingress that causes ice. For larger openings an insulated sliding door is used. We select the configuration to your throughput and opening size.
Yes. Stainless steel 304/316 skins are available for hygiene and washdown zones, with easy-clean surfaces and sealed edges. We tailor the finish to your HACCP or GMP environment.
Yes. We hold CE to EN 13241 and EN 12453 for operator safety, backed by ISO 9001:2015 and SGS material reports. A Declaration of Conformity and test report ship with every order.
Every door is custom-engineered to your specification. Samples run 7–15 days, a standard container 12–20 days, and a first custom order 20–35 days (repeat orders 15–20 days). FOB ports are Tianjin and Qingdao, FCL and LCL.
Door body is covered for 2 years and the operator / motor for 3 years (servo motor 5 years). Free spare parts within warranty ship by DHL/FedEx in 5–7 days, and OEM projects are protected under NDA.
Send your room temperature, opening size and throughput — we return a technical layout, specification and container-ready quotation.
