SM-850A Compact Solventless Laminating Machine
SM-850A Compact Solventless Laminating Machine
Technical specifications and configuration
1.0 Main technical parameters
The SM-850A solventless laminating machine is built for laminating plastic films and aluminium-coated films. The design is compact, efficiency is high, and performance is stable and reliable.
For the solventless process the SM-850A series applies several patented designs to the mechanical structure, the control method, the safety guarding and the appearance.
The machine takes up little floor space and has a short material path. Operation is simple, and full servo control across the machine keeps accuracy high.
Main features:
• Precise coating weight, easy adjustment. The coating unit uses an independent servo drive and linear independent adjustment, so the operator sets the adhesive amount precisely and repeats it from run to run.
• High laminating quality. The material path is designed for the process, and the patented laminating and rewinding structures keep the bond even and the roll flat.
• Ergonomic operation. The adjustable light source follows the working position, the control panel follows an ergonomic layout, and a pneumatic viewing guard keeps hands away from the rollers.
• Safe and reliable. The main electrical components meet CE safety standards, and key parts are dynamically balanced, so the machine runs smoothly at full speed.
• Easy to learn. Beyond the hardware, the machine ships with process guidance, so a new crew reaches production speed sooner and wastes less material before formal production.
1.1 Technical parameters
Laminating type | Solventless laminating |
Coating method | Five-roller coating (metering roller, transfer steel roller, transfer rubber roller, coating steel roller, coating rubber roller) |
Laminating materials | BOPP 18–50 µm; PET 12–30 µm; VMPET 12–30 µm; VMCPP 20–60 µm; LLDPE 30–100 µm; glassine 28–60 gsm; nylon 15–100 µm |
Max. laminating speed | 300 m/min |
Max. feeding width | 850 mm |
First unwind diameter | Ø600 mm |
Second unwind diameter | Ø600 mm |
Max. rewind diameter | Ø600 mm |
Paper core inner diameter | 3″ or 6″ |
Total power | 42 kW (including 9 kW heating) |
Gross weight | approx. 4,300 kg |
Overall dimensions | 2000 (L) × 2450 (W) × 2480 (H) mm |
Machine colour | Cream white |
Note: actual production speed depends on the material, the adhesive, operator skill and the quality requirement.
2.0 Main frame and configuration
2.1 First unwind unit (1 set)
1) Single-station unwind; the roll is fixed on an air shaft.
2) Paper core inner diameter 3″ or 6″ (expansion sleeve optional).
3) The unwind motor controls acceleration and braking of the roll (asynchronous servo motor, HCFA 4.4 kW, 1 set).
4) Lateral adjustment of the roll ±35 mm.
5) Maximum unwind diameter Ø600 mm.
6) Automatic unwind tension control: buffer cylinder plus floating roller, built from a precision potentiometer, a precision pressure regulating valve, an ultra-low-friction cylinder and an asynchronous servo motor, controlled centrally by a Siemens S7-1200 PLC.
7) Tension range 3–30 kg over the full width.
8) Automatic EPC system, tracking the film edge, 1 set.
2.2 First coating unit (1 set)
1) Five-roller coating: metering roller, transfer steel roller, transfer rubber roller, coating steel roller, coating rubber roller.
2) Fast-setting metering gap: the gap between the metering roller and the transfer steel roller is set in one adjustment, which shortens changeover time.
3) Transfer steel roller Ø188 mm, driven by a GSK 1.5 kW servo motor.
4) Transfer rubber roller Ø150 mm, Shore hardness A78±2°, air cylinder Ø63×25 mm, driven by a GSK 3.9 kW servo motor.
5) Coating steel roller Ø188 mm, driven by an HCFA 4.4 kW asynchronous servo motor. Its motion can be synchronous or asynchronous: in asynchronous mode the coating roller runs on its own; in synchronous mode its speed follows the web tension.
6) Web tension control: buffer cylinder plus floating roller, built from a precision potentiometer, a precision pressure regulating valve, an ultra-low-friction cylinder and an asynchronous servo motor, controlled centrally by a Siemens S7-1200 PLC.
7) Coating rubber roller Ø150 mm, Shore hardness A80±2°, air cylinder Ø63×50 mm, coating air pressure 0–0.6 MPa.
8) Coating unit temperature control: one mould temperature controller, 1 set.
9) Coating unit rollers run on imported high-precision bearings.
10) Stainless steel waste adhesive tray, 1 set.
11) Coating unit safety system, 1 set, with three measures:
• Safety viewing window: opening the guard sounds an alarm; with the window open the machine runs at low speed only, and it returns to full speed once the window is closed.
• Safety pull cord: pressing or pulling the cable stops the machine if the operator leans in or falls.
• Wedge guard: sits between the transfer rubber roller and the coating steel roller and keeps hands out of the nip.
2.3 Second unwind unit (1 set)
1) Single-station unwind with automatic clamping; air shaft with two roll positions.
2) Paper core inner diameter 3″ or 6″ (expansion sleeve optional).
3) The unwind motor controls acceleration and braking of the roll (asynchronous servo motor, HCFA 4.4 kW, 1 set).
4) Lateral adjustment of the roll ±35 mm.
5) Maximum unwind diameter Ø800 mm.
6) Automatic unwind tension control: buffer cylinder plus floating roller, built from a precision potentiometer, a precision pressure regulating valve, an ultra-low-friction cylinder and an asynchronous servo motor, controlled centrally by a Siemens S7-1200 PLC.
7) Tension range 3–30 kg over the full width.
8) Automatic EPC system, tracking the film edge, 1 set.
2.4 Laminating unit (1 set)
1) Independent asynchronous servo drive (HCFA motor 4.4 kW), 1 set.
2) Laminating steel roller Ø200 mm, strictly dynamically balanced.
3) Laminating rubber roller Ø150 mm, Shore hardness A82±2°, strictly balanced.
4) Laminating air pressure 0–0.6 MPa.
5) Laminating unit temperature control: domestic mould temperature controller.
2.5 Rewinding unit (1 set)
1) Single-station rewinding; the roll is fixed on an air shaft with a fixed rewinding frame.
2) Paper core inner diameter 3″ or 6″ (expansion sleeve optional).
3) The rewind motor controls acceleration and winding of the roll (asynchronous servo, HCFA motor 5.5 kW, 1 set).
4) Maximum rewind diameter Ø600 mm.
5) Automatic rewind tension control with a load cell, controlled centrally by a Siemens PLC.
6) Tension range 4–40 kg over the full width.
7) Tension taper range 0–100%.
8) Heavy-duty rewind pressure roller, 1 set.
3.0 Other important equipment
1) All guide rollers are aluminium alloy, Ø110 mm, dynamically balanced and surface treated.
2) All air cylinders are AIRTAC, Taiwan.
3) Bearings across the machine are Japanese (NSK or equivalent).
4) PLC: Siemens S7-1200 series.
5) Touch screen, 10 inch, 1 set.
6) Tool box, 1 set.
7) Foot pedal jog switch for cleaning the coating unit, 1 set.
8) Roller temperature control, 1 set, Chinese brand, 9 kW total, one mould temperature controller driving two circuits:
• Coating unit: metering roller, transfer steel roller and coating steel roller, 1 circuit.
• Laminating unit: laminating steel roller, 1 circuit.
9) Link between the main machine and the automatic adhesive mixer: the laminating machine and the SMI-40 mixer communicate, so the line protects itself. If the mixer faults or runs short of adhesive, the main machine alarms, slows down or stops.
10) SMI-40 standard automatic adhesive mixer, 1 set: fully digital, accurate ratio, even mixing, stable running and simple operation.
4.0 Site requirements (supplied by the user)
1) Power: 380 V, 50 Hz.
2) Air: maximum pressure 0.7 MPa.
3) Water: pressure 2–4 kg/cm².
Note: if the site power does not meet the requirement above, a voltage transformer must be supplied separately.
