16-Station Crawler-Chain Door Foaming Line — CE / ISO 9001-certified production lines by UREXCEED. Lead time 120 – 180 days, MOQ 1 line.
16-Station Crawler-Chain Door Foaming Line
16-station crawler-chain door foaming line for mid-to-large refrigerator OEM factories (1,500–2,500 doors/shift). 30-second cycle, water-heated, 100 kW, 17 m line length × 2.5 m wide. Compact alternative to 26-station ground-rail loop for door-mix production.
Engineering reply within 24 hours
Quote + spec sheet + tailored sizing recommendation. WhatsApp answered 9 am–6 pm Beijing time.
Specifications
- Layout Form
- 16-station crawler (chain-conveyor) door foaming line
- Drive Method
- Crawler chain conveyor + pneumatic clamping per station
- Heating Method
- Water heating via mould temperature controller
- Number of Stations
- 16
- Fixture Template Size (W×H)
- 1,400 × 900 mm (door panel template)
- Footprint (Overall L×W×H)
- 17,000 × 2,500 × 2,000 mm
- Production Cycle Time
- ~30 seconds per door
- Foaming Material
- POL + Cyclopentane + ISO / POL + HCFC-141a + ISO / POL + HCFC-245fa + ISO
- Voltage / Frequency
- 380V · 50 Hz · Control voltage 24V
- Total Power
- Approx. 100 kW
- Compressed Air Requirement
- 0.5 MPa
- Best Fit Capacity
- ~1,500 – 2,500 doors per shift
- Lead Time
- 120 – 180 days
- MOQ
- 1 line
Applications
- Mid-to-large refrigerator OEM door factory (1,500–2,500 doors/shift)
- French-door / side-by-side / 4-door refrigerator door mix
- Compact factory hall where ground-rail 26-station loop is too large
- Commercial display cabinet door foaming (multi-variant chain mix)
- Door-specialty workshop feeding multiple cabinet assembly lines
The 16-station crawler door foaming line is the mid-volume sibling to the 26-station ground-rail loop. Chain-conveyor moves door fixtures through 16 heated curing stations, with throughput tuned for 1,500–2,500 doors/shift. Best fit: refrigerator OEM factories making 600,000 – 1.5M doors/year — too high for rotary 7/8-station, too low to justify ground-rail 26-station capex.
When 16-station crawler beats both rotary and ground-rail
Pick 16-station crawler when (a) your daily door demand is 1,500–2,500 (rotary 7/8 maxes at 1,000, ground-rail wastes 30%+ capacity), (b) your factory hall is 15–20 m long (rotary hub fits 6m, ground-rail needs 30m), (c) you run a 2–4 SKU door mix (crawler chain accepts more variant changes than ground-rail closed loop).
Why the 16-station crawler wins on mid-volume door production
Engineering and capex advantages over rotary 7/8 and ground-rail 26-station alternatives.
Capacity sweet spot 1,500–2,500 doors/shift fills the rotary-to-ground-rail gap
Rotary 7/8: 600–1,000 doors/shift. Ground-rail 26: 3,000–6,000 doors/shift. The 16-station crawler at 1,500–2,500 covers the underserved mid-volume range where most refrigerator OEM factories actually operate (600K – 1.5M doors/year).
Compact 17 × 2.5 × 2 m footprint — half the ground-rail envelope
Ground-rail 26-station: 230 m² floor envelope (29 × 8 m). Crawler 16-station: 42 m² floor (17 × 2.5 m). Fits factory halls where ground-rail won't — 80% of mid-size OEM factories globally.
30-second cycle keeps pace with downstream cabinet assembly
Cabinet assembly lines typically run 30–40 sec/cabinet. A 30-sec crawler door cycle matches assembly pace 1:1 — no door buffer needed, no bottleneck. Rotary 46-sec cycle creates buffer; ground-rail 20-sec cycle outpaces assembly.
Chain conveyor accepts 4–6 variant SKU mix without full changeover
Crawler chain stations accept multiple door variants simultaneously (each fixture position runs independent PLC recipe). Rotary single-station-at-a-time changeover wastes 8–15 minutes per SKU switch. Crawler runs continuous mixed batch.
How the 16-station crawler cycle runs
30-second station-to-station cycle. Each door spends ~8 minutes total in line (15 sec inject + 7.5 min cure across 15 stations + 30 sec demould).
- 1
Station 1 (Load) — 2 operators load pre-skinned door panels onto fixture trays riding the chain conveyor. Multiple SKUs can load in parallel onto different positions. ~25 sec per station feed.
- 2
Station 1 (Inject) — pneumatic clamp engages, PU mix-head injects POL+ISO+cyclopentane (1.0–1.8 kg per door). ~15 sec.
- 3
Stations 2–15 (Cure on chain) — chain conveyor carries fixtures through 14 heated curing stations. Water-circulated platens maintain 45–55°C. Foam rises and cures. ~7.5 minutes total (30 sec × 15 stations).
- 4
Station 16 (Demould) — pneumatic clamp releases, operator lifts cured door onto take-off conveyor. ~25 sec.
- 5
Downstream feed — completed doors enter gasket-fitment / hinge-mounting / final assembly. Cabinet assembly line consumes doors at matching 30-sec rate. ~10 sec transit.
FAQs — 16-station crawler door foaming line
Investment + lead time?
Operators per shift?
Can it run alongside an existing rotary 7/8 line?
What door panel sizes fit?
How does cycle time compare to rotary 7/8?
When NOT to use 16-station crawler?
Related Products
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Linear Cabinet PU Foaming Line — 6 / 8 / 11 Stations Configurable
Linear in-line PU foaming for refrigerator cabinet body. Scalable from 6-station motor-driven (~800–2,500 cabinets/shift, small-medium factories) to 11-station hydraulic (~4,000–6,000 cabinets/shift, mainstream OEM). Multi-spec mixed-line production. Cabinet size 800–2,000 mm L × 450–2,000 mm W × 450–900 mm H. Water-heated, PID-controlled.
7-To-8 Station Rotary-Door PU Foaming Line (Door-Dedicated Hub)
Rotary (hub-type) door foaming line dedicated to refrigerator and cabinet DOOR foaming. 7–8 stations · 46-second cycle · compact 33 m² footprint · ~65 kW · fast variety changeover.
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Trial run + parameter tuning to your local raw material, climate, and target product spec — until throughput meets contract.
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