Also searched as agricultural heavy duty sliding door, farm sliding door and machinery shed sliding door.
A top-hung sliding door built for big agricultural openings — wide enough for tractors and loaders, tough enough for daily farm use. Galvanized steel leaves on a heavy rolling track, manual or motorised, built to your opening from prototype to full production runs.
One idea: close a very wide farm opening reliably, with a door that slides clear instead of swinging into the yard — and keeps rolling through years of dust, weather and machinery traffic.
Machine sheds, hay stores and large livestock buildings need openings wide enough for tractors, loaders and trailed equipment. A swinging door that wide sags, catches the wind and eats yard space. A top-hung sliding door solves this: the leaves hang from a heavy overhead track and slide clear of the opening, so the full width stays usable and nothing swings into traffic or weather.
RAX builds each barn slider to your exact opening from galvanized steel leaves on a heavy rolling track, with the option of insulation, personnel pass doors and motorisation. Every unit is validated to 100,000 cycles in the RAX fatigue lab and shipped with technical drawings and an English manual so your local builder can install it without guesswork.
Cycle life of 100,000 cycles is validated in the RAX fatigue test lab. Wind performance is confirmed per project on the matching standard for your installed size and exposure; typical maximum leaf dimensions are industry-typical and confirmed on your specification.
Every door is engineered to your opening. The values below are the validated baseline; final figures are confirmed on your specification. Each row states whether the value is RAX-measured, an industry-typical range, or per project.
| Parameter | Specification | Basis |
|---|---|---|
| Door Type | Top-hung heavy duty sliding door (single or multi-leaf, single or bi-parting) | Product definition |
| Leaves | Galvanized steel sheet (0.4–1.5 mm) on a stiffened frame; optional PU foam insulated core (40–50 mm). | RAX build |
| Track & Rollers | Heavy galvanized overhead track with sealed rolling hangers; bottom guide keeps leaves aligned. | RAX build |
| Cycle Life | 100,000 cycles validated in the RAX 100,000-cycle fatigue test lab. | RAX-measured |
| Typical Leaf Size | Industry-typical single leaves up to roughly W 6,000 × H 5,000 mm; wider openings served by multi-leaf / bi-parting layouts — confirmed on technical drawing. | Industry-typical |
| Operation | Manual sliding as standard; optional motor drive with RAX servo VFD and sensing. | RAX options |
| Wind Performance | Confirmed per project on the matching standard for your installed size and exposure. | Per project |
| Operating Range | Tested from −30 °C cold storage to +50 °C desert conditions. | RAX-tested |
| Colour / Finish | Full RAL custom (common RAL9006, RAL9010, RAL7016, RAL5010); wood-grain transfer optional. | RAX build |
| Max Opening | Custom to your opening — confirm feasible span on technical layout. | Per project |
Need a wind class or insulated value evidenced for your build? We arrange the matching test data per project — see Compliance below for what is held versus arranged per project.
Validated substrates, processed in-house on an auto PU foam panel line and CNC punching / bending centre. No outsourcing of the structural parts.
Wide agricultural openings that need reliable, low-maintenance daily access.
Your builders get the full document set before the door ships — the same package our farm-builder and distributor clients rely on.
Certificates we hold today, and the project-specific test data we arrange against the matching standard. We state held versus per-project so you can tender honestly.
Rigorous 100,000-cycle fatigue testing, validated galvanized steel and aluminum alloy materials, and precision manufacturing — performed in-house, not outsourced.
Large industrial doors from prototype to container-load delivery. Start with an OEM sample and scale to container-load branded production.
Every barn slider is built to your opening and your building. Send the clear opening size, the leaf layout and whether you need insulation or a pass door (or site photos) and our engineers return a proposal, technical confirmation and lead time.
From custom engineering to container-load delivery — the document set your local installers need.
Warranty: door body 2 years · operator/motor 3 years · servo motor 5 years. Free spare parts within warranty (DHL/FedEx 5–7 days). Lead time: sample 7–15 days · standard container 12–20 days · custom first order 20–35 days.
Single sliding leaves typically reach roughly W 6,000 × H 5,000 mm; wider openings are served by multi-leaf or bi-parting layouts that stack clear of the opening. The exact feasible span for your building is confirmed on the technical layout, so send your clear opening width and height (or site photos) and our engineers will propose the leaf arrangement.
It is top-hung: the full leaf weight is carried on a heavy galvanized overhead track with sealed rolling hangers, so there is no bottom rail to collect dirt, ice or debris in the doorway. A bottom guide keeps the leaves aligned in wind. This keeps the floor clear for machinery and reduces maintenance in dusty farm conditions.
Yes. Leaves can be built with a 40–50 mm PU foam insulated core for livestock housing, workshops and temperature-sensitive stores, or left as single-skin galvanized steel for open machinery sheds where insulation is not needed. Insulated leaves also reduce condensation and draughts.
Yes. Every door is engineered to your clear opening width and height, or from site photos. Every door is built to your non-standard size, in any RAL colour. Our engineers confirm the feasible span and produce a technical proposal for approval before production.
RAX holds ISO 9001:2015, CE marking against EN 13241 (industrial door product standard) and EN 12453 (operator safety), plus SGS material reports and Product Liability Insurance. Wind class and AS/NZS 4505 / UL counterpart test data are arranged per project, not held as standing certificates.
Sample orders run 7–15 days, a standard container 12–20 days, and a custom first order 20–35 days (repeat custom orders 15–20 days). FOB ports are Tianjin and Qingdao; FCL and LCL are both supported.
Every order includes wiring diagrams, an English installation manual, FAI first-article confirmation and pre-assembly photos, a factory inspection report (speed, noise, insulation resistance, visual), the 100,000-cycle fatigue test video/report, and the CE Declaration of Conformity with the EN 13241 test report.
Send your opening size (W × H), the leaf layout and whether you need insulation or a pass door. Our engineers reply with a proposal and lead time — no obligation.
