Vertical Lift Overhead Sectional Door Large Span Factory High Lifting Industrial Door

Different from conventional curved‑track sectional overhead door, vertical‑lift version uses complete straight vertical track system. When opening, all panels rise straight upward and stack vertically near upper wall, without curved transition. This solution is perfect for factories where ceiling space is occupied by piping, crane or production equipment, while sufficient vertical headroom above door lintel is available. Reinforced hardware and balance system bear heavy weight of large‑span door panels.

40‑50mm PU‑foam steel sandwich panels, add internal reinforcing ribs for large‑span width to improve anti‑bending performance under wind‑load condition.

Heavy‑gauge galvanized steel straight vertical tracks, special reinforced bracket set fixed on upper wall, bear full impact and weight from door panel movement.

Multi‑group high‑strength torsion springs; for extra‑heavy oversized door, counter‑weight balance system can be adopted to guarantee smooth lifting operation.

Heavy‑duty industrial motor matched door total weight; full set safety protection including spring‑break protection, rope‑break protection, bottom safety edge and photoelectric infrared sensor.

EPDM rubber sealing for top, side and bottom position, reduce dust, wind and rain infiltration into factory workshop.

• Straight vertical lifting, no curved track, adapt workshop ceiling occupied by crane, pipeline and equipment
• Reinforced ribbed panel and heavy‑duty hardware support large‑span oversized opening dimension
• Panels keep vertical after opening, will not occupy ceiling hanging‑object space
• Complete multi‑safety protection for heavy‑weight large‑size industrial door
• Flexible options: vision windows, wicket door, counter‑weight balance system, high‑wind‑resistance reinforcement

1. Raw‑material incoming inspection for thick steel sheet, PU foam and heavy‑load hardware.
2. CNC cutting, bending and reinforcing‑rib welding for large‑span panels.
3. High‑pressure PU foam injection forming.
4. Surface powder‑coating treatment.
5. Heavy‑duty track, bracket and balance‑system component pre‑assembly.
6. Full‑load lifting simulation test before packing and shipment.

Large‑span panel bending‑resistance test; track‑bracket load‑bearing verification; spring fatigue‑cycle test; whole‑door repeated lifting test; wind‑load simulation check; safety‑device trigger‑function test.

Heavy‑industry manufacturing plant, machinery assembly workshop, large‑equipment maintenance workshop, truck‑bay factory building, workshop with overhead crane or complex ceiling pipeline layout.

Enough vertical headroom above lintel equal to door opening height; upper bearing wall must bear track‑bracket load; concrete anchoring points for heavy hardware; reserved industrial‑grade power supply. We provide structural‑load requirement and installation drawing for civil‑work coordination.

Monthly: Clean vertical track debris; lubricate heavy‑load rollers and hinge joints.
Quarterly: Check spring or counter‑weight system fastening condition; inspect all bolts of reinforced brackets; check sealing strips ageing condition.
Half‑yearly: Full functional test for motor and all safety protection devices; tighten loose fasteners.
Yearly: Professional inspection for balance‑system performance for large‑weight vertical‑lift door.