Valmet Pilot Super Calender

Web width on unwind stand 24" (600) mm starting width 21.6" (550 mm)
Paper product
GSM 20-400 g/m2
Frame designed for 13 rollers
Numbers of rolls 13
Designed speed 2500 m/min
Driving speed, drives 8200 fpm (2500 m/min) process 5575 fpm (1700 m/min)
Line press in NIP max. 550 kN/m, min. 30 kN/m
Frame and load equipment 1000 kN/m
Thermal roller heating, oil + induction
Thermal roll cover heat max. 200 celsius
Main drive for 3 rolls, auxiliary use for 12 intermediate roller
12 nips
Web width 550 mm
2500 m/min
30-550 kN/m
200 ̊C

Consumption information:
1. Water Amount Pressure
Hydraulic unit 150 l/min/unit 200-500 kPa
Injection shoes 40 l/min/unit 400-600 kPa
Heating system, max450 l/min 200-500 kPa
water / air mixture – cool 14 l/h/ roll 200-500 kPa
Cooling cylinders ( water temperature + 20 Celsius ) 60 l/min/cylinder

2. Air pressure
Air edge cooling 520 Nm3 /h/roll 500 kPa
Water/air cooling, max 1 Nm3/h/roll 500 kPa
Instrument air 2,5 Nm3/h 500 kPa

3. Steam
Steam box, max 90 kg/h/box 200 kPa

Note:
When using water as a thermal medium, the following water quality standards must be observed
Residual water hardness < 0.03 mval/kg
P-value 0.5, 1.5 mval/kg
pH value 9.0 – 10.0