VER3544 - Coating System for One Side Coated Folding Box Board - built in 2007
Basis weight range: 250 - 700 g/m2
Max production capacity: 200 Tpd
Reel trim: 2600 mm
Coating units: back side metering bar; first top layer Barflex; second top layer blade/Barflex
Coat weight: back layer 2 g/m2; top layers 12-13 g/m2

Coating section consisting of:
13 x paper rolls, 12 of them chromium plated, 350 mm, face width 3000 mm, complete with bearings, bearing housings and pulleys for ropes
Framing made of electrowelded steel to support the paper rolls, infrared drying system and steam drying hoods
3 ropes tail threading system, from post drying section to the pope reel, through the coating system
System including cast iron pulleys for ropes, mounted on antifriction bearings and adjustable bearing housings. The rope stretcher is of counter weight type
Foundation plates made of cast iron and complete with anchor bolts and levelling screws
Total length: 10 + 10 m

Coating preparation system consisting of
1. Starch/CMC preparation and storage
2. Coating preparation line and storage
3. Feeding line for first coating head, top layer, (bar)
4. Feeding line for second coating head, top layer, (blade)
5. Feeding line for third head, back layer, (metering bar)

Technical data
Starch type: modified starch
Starch supply: starch 25 Kg sacs; CMC 25 Kg sacs
Consumption: starch max 95 kg/h; CMC max 7 Kg/h
Working consistency: starch 25%; CMC 10%
Quantity per cycle: 1600 l
Number of cycles: starch max 6/24h; CMC max 2/24h
Tank capacity: starch 10 m3; CMC 3 m3

1. Starch/CMC preparation and storage line consisting of:
1600 litres cooking tank in AISI 316, 5,5 Kw
10 m3 starch storage tank in AISI 316, 2,2 Kw
13 m3/h dosing pump, 4 bar, 2,2 Kw
3 m3 CMC storage tank in AISI 316, 1,1 Kw
1600 l/h dosing pump, 4 bar, 0,55 Kw
Electric controls
Piping and valves
Walkways and ladders

2. Coating preparation line and storage technical data
Necessary chemical additives (CaCO3 60, CaCO3 90, kaolin, latex 1, latex 2, starch, CMC, color 1, color 2, antislime, antifoam, optic bleacher, NaOH, stearate, dispersant, fresh water, additives recirculation)
Coati consumption: max 1422 l/h
Additives preparation capacity: 1800 l/h
Type of preparation: automatic, with loading
Cycle capacity: 1500 l
Cycle time: 50 minutes including discharge

Line including:
Dosing unit for CMC
Dosing unit for color 1
Dosing unit for color 2
Dosing unit for optic bleacher
Dosing unit for NaOH
Dosing unit for stearate
Dosing unit for dispersant
Mixing machine, 1500 l, AISI 316, 75/55 Kw
15 m3 dosing pump, 4 bar, 4 Kw
Filter unit 100 um, 0,18 Kw
3000 lt additives residual tank in AISI 316, 1,1 Kw
Dosing pump 0-55 l/h, 4 bar, variable speed motor, 2,2 Kw
3000 lt coat storage tank in AISI 316, 1,1 Kw
Dosing pump 0-55 l/h, 4 bar, variable speed motor, 2,2 Kw
Electric controls for coat preparation
Piping and valves
Walkways and ladders

3. Feeding line for top layer (bar) technical data
Type of coating head: with bar
Working speed: up to 200 m/min
Working width: 2600 m/min
Coating area: 31.200 m2/h
Coat basis weight: 13 g/m2
Bond dry coat consumption: 405,6 Kg/h
Coat consistency: 55%
Specific gravity: 1,41 Kg/dm3
Coat consumption at 55% consistency: max 523 l/h
Pump capacity: 1-27 m3/h

Line including:
550 lt working tank in AISI 316
Dosing pump 1-27 m3/h, 4 bar, 7,5 Kw
Filter unit, 100 um, 0,18 Kw
Recirculation feedbox in AISI 316
Electric controls
Piping and valves
Walkways and ladders

4. Feeding line for top layer (blade) technical data
Type of coating head: with blade
Working speed: up to 200 m/min
Working width: 2600 m/min
Coating area: 31.200 m2/h
Coat basis weight: 13 g/m2
Bond dry coat consumption: 405,6 Kg/h
Coat consistency: 60%
Specific gravity: 1,41 Kg/dm3
Coat consumption at 60% consistency: max 460 l/h
Pump capacity: 1-27 m3/h

Line including:
550 lt working tank in AISI 316
Dosing pump 1-27 m3/h, 4 bar, 7,5 Kw
Filter unit, 100 um, 0,18 Kw
Recirculation feedbox in AISI 316
Electric controls
Piping and valves
Walkways and ladders

5. Feeding line for back layer (metering bar) technical data
Type of coating head: with metering bar
Working speed: up to 200 m/min
Working width: 2600 m/min
Coating area: 31.200 m2/h
Coat basis weight: 6 g/m2
Bond dry coat consumption: 187,2 Kg/h
Coat consistency: 35%
Specific gravity: 1,22 Kg/dm3
Coat consumption at 60% consistency: max 439 l/h
Pump capacity: 1-27 m3/h

Line including:
550 lt working tank in AISI 316
Dosing pump 1-27 m3/h, 4 bar, 7,5 Kw
Filter unit, 100 um, 0,18 Kw
Recirculation feedbox in AISI 316
Electric controls
Piping and valves
Walkways and ladders