Top Hung Industrial Folding Door Floor Track Free Bi Parting Folding Gate

Top‑hung industrial folding door is specially developed for sites where ground track cannot be arranged. The whole door weight is supported by overhead hanging track mounted on lintel or steel frame, no rail reserved on floor, keeping ground surface fully flat for forklifts and heavy‑duty vehicles pass through unobstructed. Multi‑leaf bi‑parting folding structure, door leaves stack to both sides of opening when fully open. Manual and electric driving modes available. Widely applied in logistics bays, vehicle washing workshops, heavy‑forklift passageways and other industrial sites requiring barrier‑free floor surface.

Different from conventional ground‑track folding doors, top‑hung folding door cancels ground guiding rail. All door‑panel weight is transferred to upper overhead hanging track via heavy‑load hanging roller assemblies. Multi‑leaf panels fold sideways and stack compactly beside doorway. This design eliminates ground obstacles, avoiding track wear, debris accumulation and vehicle collision risk. It is ideal solution for industrial passages with high‑frequency heavy‑vehicle traffic.

Galvanized / carbon / stainless‑steel door panels (insulated filling optional); heavy‑duty overhead hanging track; high‑load hanging roller assemblies; reinforced hinges; full‑perimeter rubber sealing system; manual push‑pull or electric motor‑driven unit; position limit switches; anti‑collision rubber buffer; emergency‑stop & manual release for power‑off situation; optional polycarbonate observation windows; optional remote‑control and access‑control interlock.

• Floor‑track‑free design, keep ground completely flat for heavy‑vehicle & forklift traffic
• Avoid ground‑rail damage, debris jamming and vehicle‑collision risk
• Overhead hanging bearing structure, multi‑leaf bi‑parting side‑stack folding
• Manual / electric dual‑driving modes, expandable with remote‑control interlock
• Multiple panel‑material choices, thermal‑insulation filling optional
• Custom dimensions for different industrial opening sizes

Steel panel cutting & forming → welding treatment → anti‑rust pretreatment → powder‑coating / painting; overhead hanging‑track processing; heavy‑load hanging‑roller and hinge accessories production; insulation filling (if required); door‑panel assembly; hanging‑roller‑hinge installation; driving‑unit matching; sealing‑parts assembly; whole‑door movement debugging; safety‑function testing; export‑standard packing.

Panel dimension tolerance inspection; welding‑quality check; surface‑coating adhesion test; hanging‑roller load‑bearing test; full‑stroke opening‑closing cycle test; limit‑switch calibration; power‑off manual‑release function verification; pre‑shipment overall safety inspection.

• Logistics bay with frequent forklift in‑and‑out
• Vehicle washing workshop requiring flat unobstructed floor
• Heavy‑equipment maintenance bay passage
• Industrial plant gate where ground track cannot be embedded

Lintel or steel‑structure frame must satisfy door‑set total weight bearing requirement. Reserve enough side stacking space for folded door‑leaves on both sides of opening. Prepare power‑supply for electric‑driven configuration. We provide load‑bearing reference data and fabrication drawings for local installation team.

Inspect overhead‑track fixing fastener tightness regularly. Check hanging‑rollers and hinges working status every 6‑12 months. Lubricate overhead‑track and moving hinge‑roller components. Check sealing‑strip aging condition. Test emergency‑stop and manual‑release function, replace worn accessories timely.