Industrial doors with explosion-proof drive and control components for hazardous areas — oil & gas, chemical, pharma and dust-atmosphere facilities.
A door engineered for hazardous zones, fitted with explosion-proof motors (Ex d IIB T4) and compatible control gear so the drive system cannot ignite a flammable atmosphere. Custom built from prototype to container-load, full order flexibility, with full technical and CE documentation.
In a flammable gas or dust atmosphere, the door’s motor and controls are an ignition source unless they are built and certified not to be.
The explosion-proof door pairs a robust industrial door body with drive and control components rated for hazardous areas. Explosion-proof motors to Ex d IIB T4 — flameproof enclosures that contain any internal spark — remove the ignition risk from the drive train, and compatible control and sensing devices complete the protected system.
Door configuration follows the opening: sectional, roller or sliding bodies can be specified, with the hazardous-area classification, gas group and temperature class confirmed against your zone study. As a full-category manufacturer, RAX produces the door, operator and parts in one factory and validates every assembly through a 100,000-cycle fatigue protocol before shipping.
RAX company facts are from the approved brand brief. Hazardous-area classification and any blast resistance are confirmed per project against your zone study and applicable standard.
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 | Sectional, roller or sliding body, selected to opening and zone requirement. | Per project |
| Motor Protection | Explosion-proof motor, Ex d IIB T4 flameproof enclosure. | RAX |
| Hazardous Area | Zone, gas group and temperature class confirmed against your zone study. | Per project |
| Opening Size | Made to order; large industrial openings engineered per configuration. | Per project |
| Panel / Body | Galvanized steel or stainless skins; optional 40–50 mm PU foam core. | RAX-measured |
| Blast Resistance | Where required, engineered and tested to the project’s specified standard. | Per project |
| Cycle Life | 100,000 cycles validated in the RAX fatigue test lab. | RAX-measured |
| Controls | Hazardous-area-rated control panel and sensing devices; remote / interlock options. | RAX |
| Safety | Anti-pinch safety edge, bottom air-bag sensor and zone-compatible safety devices. | RAX |
| Finish | Full RAL custom; PVDF coating or stainless for aggressive process environments. | RAX |
Send your zone classification, gas group and temperature class — we confirm the protection concept and component selection 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: protection concept, component selection, opener matching and manual translation are all tailored to your zone 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.
The drive and control system is the part that could ignite a flammable atmosphere, so that is what we protect. Explosion-proof motors to Ex d IIB T4 use a flameproof enclosure that contains any internal spark, and the control and sensing devices are matched to the same hazardous-area requirement.
The zone classification, gas group and temperature class come from your site’s hazardous-area study. Share that documentation and we confirm the protection concept and component selection on the technical layout, so the door matches your classified zone rather than a generic assumption.
Sectional, roller and sliding door bodies can all be fitted with explosion-proof drive and control systems. We recommend the configuration to suit your opening size, duty cycle and zone requirement.
Where a project requires it, blast resistance is engineered and tested to the specified standard on a per-project basis. Tell us the requirement and we scope the structural design and test data accordingly.
Yes. We hold CE to EN 13241 and EN 12453 for operator safety, backed by ISO 9001:2015 and SGS material reports. Hazardous-area component documentation is provided per project. 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 zone classification, gas group and opening size — we return a technical layout, specification and container-ready quotation.
