This production line is used to produce continuously PU insulated
sandwich panels that comply with each other to make automatic
garage doors and this PU garage door sandwich panel consists of
rigid Polyurethane foam as the core material and aluminum sheet or
color steel sheet as the top and bottom face layers. The thickness
of the PU Garage door panels is among 30-80mm, width among
300-600mm, and and length adjustable for any by clients. The
operation process of this polyurethane garage door panel production
line is as follows: PU raw materials are delivered into the mixing
head through the metering pump and then eventually injected onto
the bottom facing sheet going toward conveyors along with the top
The basic components of the production line:
1.Manual decoiler 2. Clipper 3. Film coverer 4. Embosser 5. Sheet
leveller 6. Sheet feeding 7. Pressing machine 8. Another decoiler
9. Clipper 10. Embosser 11. Forming machines 13. Pre-heating oven
14. Mobile injector 15. Laminator/Composing Machine 16.Cross-cutter
17. Roller conveyor
1.Decoiler: Used for decoiling and expanding of the steel/Aluminum
coils with max.weight of 5T or 10T (for optional use) and the width
2.Upper and lower embosser: To emboss a custom-made pattern on the
surface of steel sheet.
3.Upper and lower forming machines: With a plate-like structure
welded by steel frames and gear transmission system,forming profile
to be custom-made.
4.Hydraulic clipper: For hydraulically cutting steel or aluminum
sheet after the decoiling process. Its cutter with 900m cutting
width available and the hydraulic decoiler share one hydraulic
5.Reaction Injection machine: To meter and mix two different liquid
components in a given mixing ratio required by technical process. A
chiller and a temperature controller are equipped to meet the
temperature requirements of foaming liquid chemicals. We have both
high and low pressure machines for user's optional use.
6.Mobile injector: A servo motor is used.
7.Pre-heating oven: An oven is designed to achieve up to 80℃,
8.Pre-heating table: To heat to 40℃, temperature adjustable.
9.Double-belt laminator: Options of laminator's length: 12m, 18m,
24m, 30m or 36m; speed range: 2 to 8m/min. Materials of laminator's
conveyor plank can be either steel or aluminum as per client's
10. Hot-air circulator: Used to heat up laminator's belt conveyors
in an optional design of air circulation route which can heat to
60℃ from 20℃ in one hour. There are both furnace and electricity
heaters equipped on the line while the furnace can either use fuel
oil or steam as heating energy depending on customer's choice.
11. Side chemical sealing installation: To prevent foaming
chemicals from leaking out at panel's sides. Its running speed can
be matched up with that of laminator. Sealing width of panel is
12. Cross-cutter: With both bandsaw and disc saw machines for
optional use. (Pls refer to the introduction on cutters under
Single machine category).
(Pls refer to the introduction on cutter series under matching
13. Mobile injector: The user can choose either a servo motor or
servo motor with crank as the driving system.
1. Cooling system: To be put at the end of sandwich panel
production line for the purpose of cooling sandwich panels. It can
flip and load 4 pcs of 2.4m panels at one time. Two such systems
can load about 120 pcs of sandwich panels. Distance between the two
shafts of the system is 6m and chain pitch is 200mm.
2. Lifting and parallel moving installation with vacuum suckers: To
move panels from ready-stacking position onto a a powered roller
conveyor for the next process, whole operation automatically
controlled by PLC.
3. Packing machine of winding type: For packing sandwich panels.
The main technical parameters:
Reciprocating times of injection head per minute:more than 60
Production line speed: 2～5m/min
Maximum temperature of hot-air circulating: 70℃
Laminating length of the laminator:20 m
Maximum rising height of the top conveyor: 200 mm
External dimensions :65000×2600×2200mm
Weight :40 tons