Also specified as: Fabric Megadoor Hoisting Door and Fabric Heavy Duty Hoisting Door — very large fabric curtain doors that lift vertically to close giant openings.
A fabric hoisting door for the largest openings — hangars, shipyards and heavy industry — where multiple reinforced fabric panels lift vertically on a cable system. Custom engineered from prototype to container-load, full order flexibility, with full technical and CE documentation.
Beyond a certain span, rigid doors become impractical. A fabric hoisting door closes very large openings with a light, wind-braced curtain that lifts clear.
Vertical lifting fabric doors use horizontal fabric panels carried on a cable-and-drum lift system, so a door tens of metres wide and many metres high stays light enough to operate reliably. Horizontal wind bracing lets the curtain resist load without a heavy rigid leaf, and the whole assembly parks vertically above the opening, leaving the full width and height clear for aircraft, vessels and oversized loads.
The curtain is cut from heavy-duty PVC-coated fabric with reinforcement and optional insulation, vision strips and edge sealing. Drive is by electric winch with servo / VFD control and full safety devices. As a full-category manufacturer, RAX engineers the structure, curtain and drive in one factory and validates every door through a 100,000-cycle fatigue protocol before shipping.
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 | Vertical lifting fabric (megadoor) — multi-panel curtain on cable-and-drum lift. | Per project |
| Opening Size | Made to order for very large openings; spans of tens of metres engineered per project. | Per project |
| Curtain | Heavy-duty PVC-coated fabric (0.9–1.2 mm and up) with reinforcement and bracing. | RAX-measured |
| Wind Load | Wind bracing sized to site pressure; class selected per opening and confirmed on technical drawing. | Per project (EN 12424) |
| Lift System | Electric winch with cable-and-drum lift; servo / VFD control for smooth travel. | RAX |
| Insulation | Optional insulated curtain and sealed edges for thermal separation. | RAX |
| Cycle Life | 100,000 cycles validated in the RAX fatigue test lab. | RAX-measured |
| Safety | Anti-drop devices, slack-cable detection, photo-eye / light-curtain and emergency stop. | RAX |
| Operating Temperature | Validated from −30 °C to +50 °C (cold storage to desert duty). | RAX-measured |
| Finish | Full RAL curtain colors; vision strips and printed branding on request. | RAX |
Span, height, wind bracing and lift sizing are finalized on the technical layout we issue before production — engineered to your specific opening.
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: structure, curtain, drive and manual translation are all tailored to your opening and 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.
Very large openings — spans of tens of metres and considerable heights — are the core use case, because the light reinforced fabric curtain stays operable where a rigid door would be impractical. Exact span and height are engineered to your structural interface and confirmed on the technical layout.
Horizontal wind bracing members run through the curtain, transferring load into the side towers so the light fabric resists pressure without a heavy rigid leaf. The bracing is sized to your site wind pressure and the class is confirmed per project against EN 12424.
An electric winch raises and lowers the curtain on a balanced cable-and-drum system, with servo / VFD control for smooth travel. Anti-drop devices and slack-cable detection protect the lift, and the door parks vertically above the opening to leave it fully clear.
Yes. An insulated curtain with sealed edges is available for thermal separation, and vision strips can be added for daylight and visibility. We tailor the build to your environmental and operational needs.
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 span, height and wind data — we return a technical layout, specification and container-ready quotation.
