Executive summary
The best door shrink wrap machine is the one sized to your doors: the widest leaf, the thickest frame and the number of doors per shift. A door shrink line seals PE film around each door and shrinks it tight in a hot-air tunnel, so the door ships clean and protected. Our equivalent solution covers doors up to 1,200–1,300 mm wide and 4,000 mm long. This guide shows how to size the sealer and tunnel, protect glass doors, budget power, and work out film and energy cost per door.
Industrial door packaging lines transport doors via an infeed conveyor, accommodating solid panels as well as framed glazed doors fitted with protective edge pads. The workpiece indexes into the sealing station, where roll-fed film passes through a bank of tensioned guide rollers to encapsulate the door before the heat-seal mechanism closes.
The wrapped door transfers into a forced-convection hot-air shrink tunnel, where controlled heat circulation shrinks the film tightly across both structural frames and glazed inserts. The packaged product discharges onto an outfeed roller conveyor ready for downstream stacking, while integrated safety fencing isolates the rear operating envelope.
Table of Contents
- What “best” means for a door line
- Sizing the sealer and tunnel
- Protecting glass doors and frames
- Power and air budget
- Film and energy cost per door
- Which machine type
- Selection checklist
- Safety
- Engineering FAQ
- Next step
- Related reading
- Sources
What “best” means for a door line
A machine is right for you when three things match. It takes your largest door without forcing, it keeps up with your doors per shift, and it gives a tight, clear pack without marking the finish. A machine that is too small cannot be fixed later. A machine much bigger than you need wastes floor space and power every day. Start from your door list, not from a catalogue.
Sizing the sealer and tunnel
Two sizes decide the machine: the widest door and the thickest door.
| Door range | Sealer | Tunnel opening |
|---|---|---|
| Up to 1,200–1,300 mm wide, 10–200 mm thick, up to 4,000 mm long | film 1,700 mm wide | W 1,500 × H 300 mm, L 2,500 mm |
| 700–1,100 mm wide, 20–100 mm thick | film width confirmed at quote | W 1,400 × H 200 mm, L 2,500 mm |
Leave room above the thickest door in the tunnel, so hot air flows over the top face. Door weight also matters: our sealer handles 10–100 kg doors on a working table about 800 mm high.
On heavy-duty systems such as the FHOPE-SH1200 [manufacturer rating], a triple-sealing mechanism combines one cross-sealer with two motion sealers to deliver full perimeter closure on large panel formats, supported by photoelectric detection, adjustable conveyor widths, and variable sealing heights.
Protecting glass doors and frames
Glass doors and painted frames need care at three points:
- Edges and corners: pads or corner protectors before sealing, so the film cannot cut in and the corners do not chip.
- Glass faces: an even shrink, without overheating, so the film does not stick to the glass in patches.
- Exit: pressing rollers flatten the film on all sides, and cooling fans set it before stacking.
Shrink film of 40–100 micron covers most doors, and 30–150 micron is available. Heavier, glass-filled doors need the thicker end. The sealer runs PE film and industrial standard shrink films, on a permanently heated, PLC-controlled seal bar rather than an impulse wire to ensure clean, smokeless, residue-free cuts. Dedicated models integrate two vertical discharge rollers and rapid-cooling fan arrays [manufacturer rating] to flatten side overlaps and stabilize polymer tension before doors hit transfer conveyors.
Power and air budget
Plan the supply before the machine arrives:
| Item | Sealing part | Shrink tunnel |
|---|---|---|
| Power | about 5.5 kW | about 30–37 kW, by tunnel size |
| Compressed air | 6–8 kgf/cm² (about 0.6–0.8 MPa) | n/a |
| Conveyor speed | about 0–12 m/min | about 0–8 m/min |
| Tunnel temperature | n/a | 100–220 °C |
The tunnel is most of the load. High-density insulation and continuous air recirculation keep the heat inside, which lowers the running cost during active shifts [manufacturer rating]. Air consumption per cycle is confirmed at quote.
The sealer conveyor runs faster than the tunnel. It indexes the door quickly through the seal zone so the bar can close behind it, then hands over to the steady tunnel speed.
Film and energy cost per door
Doors per hour = tunnel speed × 60 ÷ door pitch. Energy per door ≤ tunnel power ÷ doors per hour. Take a 2.1 m door on a 2.6 m pitch at 8 m/min with a 30 kW tunnel (example):
| Check | Calculation | Result |
|---|---|---|
| Doors per hour | 8 × 60 ÷ 2.6 | about 184 |
| Energy per door, at full power | 30 ÷ 184 | about 0.16 kWh |
| Film length per door, per roll | door pitch | 2.6 m |
The tunnel does not run at full power once it is hot, so real energy use is lower. Multiply film length by film width and thickness to get film weight per door, then use your film price.
Which machine type
| Type | Fits |
|---|---|
| Automatic sealer plus shrink tunnel (e.g., FHOPE-SH1200 series) | steady door volume, full protection; features triple-sealing mechanism and adjustable envelope [manufacturer rating] |
| Sealer with motion sealing (Door Shrinking Machine with Motion Sealer) | long doors and panels sealed on the move up to W 1,250 × L 2,500 mm, 10–90 kg door weight, 6.5 kW sealing power [manufacturer rating] |
| Economic door shrink packing machine | lower volume, smaller budget; door width 600–1,250 mm, thickness 20–60 mm, with vertical edge-pressing rollers [manufacturer rating] |
| Sealing only, no tunnel | dust protection inside the plant |
Selection checklist
Ask these questions before you buy:
- What is the widest, longest and thickest door it takes?
- How many doors per hour at my door length?
- What film thickness does it run?
- What power and compressed air does it need?
- Can it take doors straight from my line, in auto and manual feed?
- What spare parts and seal blades come with it?
Safety
The machine is designed to EN ISO 12100:2010 for risk assessment, EN 415-10 for packaging machine safety, and EN 60204-1:2018+A1:2025 for electrical safety of machinery [verified against EUR-Lex/ISO/CEN, 2026-10]. Control architectures and interlocks align with EN ISO 13849-1:2023 Performance Levels (PL). Equipment powered across 380 V 3-phase circuits complies with the Low Voltage Directive (LVD 2014/35/EU, covering 50–1,000 V AC), while variable-frequency drives meet the Electromagnetic Compatibility Directive (EMC 2014/30/EU).
The hot seal bar and the tunnel are the primary physical hazards. A safety perimeter fence closes off the operating area behind the machine, and the sealing jaw incorporates anti-cut safety protection to stop motion automatically if obstruction occurs. Guarding specifications and complete CE conformity files are agreed per project.
Engineering FAQ
Q: What size doors can it pack? A: Up to 1,200–1,300 mm wide, 4,000 mm long and 10–200 mm thick on the larger model.
Q: How many doors an hour? A: Tunnel speed × 60 ÷ door pitch. At 8 m/min and a 2.6 m pitch, about 184.
Q: How much power does it need? A: About 5.5 kW for the sealer and 30–37 kW for the tunnel.
Q: Will it mark glass doors? A: Not with edge pads, an even shrink and pressing rollers at the exit.
Q: Do I need the tunnel? A: For a tight, transport-ready pack, yes. Sealing alone keeps dust off inside the plant.
Next step
- Send your door sizes, weights and doors per shift to info@fhopepack.com.
- We size the sealer, tunnel and film.
- We reply within 24 hours with a proposal and quotation.
Related reading
- Automatic door shrinking machine (product)
- Economic type door shrink packing machine (product)
- Door shrinking machine with motion sealer (product)
- Automatic film sealing machine application on panel door
- Automatic panel sealing and shrinking machine
- Door and panel shrink packaging machine
Sources
- FHOPE quotations: automatic door panel sealing and shrinking machine
- EN ISO 12100:2010; EN 415-10; EN 60204-1:2018+A1:2025; EN ISO 13849-1:2023
Last reviewed: 2026-10-29
