| Customization: | Available |
|---|---|
| Certification: | CE |
| Surface Treatment: | Pressure Light Glazing |
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features
1. The 12 rolls are separately driven by 12 DC motors, which allow a wide rang of speed adjustment.
2. The rolls are made of chilled cast iron with vanadium and titanium alloys. The roll face is hard and anti-wear.
3 The rolls are arranged in S form. Roll 1# and roll 4# have roll cambers that can eliminate bending impact on rolls during working process. Thus, it is possible to make products with same thickness along axial direction.
4The transmission system adopts a hard facing gear reducer, which has a compacted structure with higher transmission efficiency, lower noise and longer service life.
5The machine is equipped with emergency device. When an emergent accident occurs, the calendar will be immediately stopped to open the roll space so as to protect the operator and equipment. PLC program controller is used in electric system.
Main Data:
| Trimed Sheet Width | max 6000mm |
| Operating Speed | max 1500m/min |
| Paper Threading Speed | off-line operating:5~15 m/min |
| online operating: the same as PM and coater | |
| Working Liner Pressure | max350N/mm |
| Thermal Roll Surface Temp | 180ºC |
| Number of Calendering Rolls | 6~12 |
| Top and Bottom Roll Type | multi-zone controllable crown roll |
| Thermal Roll: shell material | alloy chilled cast iron |
| Surface Hardness | HSD72 |
| surface temp variation±1ºC | |
| Soft Roll | roll cover is imported, done by special manufacturers |
| Calendering roll loading and releasing style | bottom tank loading,and releasing |
| The loading oil tank is controlled by PLC | |
| Quick releasing and slow releasing | |
| Calendering roll quick releasing time ≤0.5s | |
| Calendering roll weight hydraulic compensating system | hydraulic entire or sectional compensation |
| Thermal roll heating system | Electrical heating, body temp linear control |
| The heads of soft roll is cooled by blowing | |
| Paper release type( off-line) | Constant tension control motor brake to release paper |
| Under emergency stop, motors generate electricity to brake | |
| Max unreel tension: 0.7~1.5N/mm | |
| Reel change flying connecting speed:20~30m/min | |
| Reel Type | constant tension control, float loading shaft type( off-line) |
| Max reel tension:0.7~1.5N/mm | |
| Paper Threading | separate threading |
| Drive | AC frequency conversion sectional drive |
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Expect the main drive, the other calendering rolls and some leading rolls, spreader rolls are equipped with auxiliary drive |
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| Electrical and hydraulic control system |
Main drive, reeling and unreeling drive are AC frequency conversion variable-speed The reeling and unreeling drive are equipped with special operation card and tension detecting feedback system. Reel and unreel emergency braking tome: 5~10s. |
| Auxiliary drive s speed and load distribution control. | |
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The oil pressure of bottom roll and controllable crown roll is controlled by PLC. The oil pressure can be tracked automatically according to the setting linear pressure. |
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| The reel loading linear pressure can be adjusted separately. | |
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Through PLC and field bus, control the machine operation and hydraulic system logic operation. All the operation can be done through the touching screen. The operation plant is equipped with buttons, knobs and indicator lights |
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| Inside and outside lifting table |
Hydraulic drive, machinery synchronization, equipped with electrical, hydraulic, machinery safety device. |
| Crane | Used for roll changing and maintaining |
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