Reference Number
UM - 25138
Product
Bobst K5 2450 Mm Vacuum Metallizer
Year Of Manufacture
2017
Location
-
Product Details
Maximum width : 2450 mm
Type and thickness: BOPP 10~50 um, CPP 15~50 um, PET 8~50 um, LDPE 25~50 um, Nylon 12~50 um, UPVC 20 ~100 um.
Winding Tension: 49~435 N, Max Drum Tension: 1291 N.
Max line speed: 840 m/min
Inch speed: 10 m/min, in forward or reverse direction.
Power: 260 kW av. Consumption, 70 kW Standby consumption.
Unwind & Rewind Systems:
Max. roll diameter: 1000 mm x 152 mm core
Lay-on arms, can operate as ‘contact’ or ‘gap winding. Servo motors driven. Linear tracking to prevent telescoping. Contact pressure & gap distance remotely adjustable. Over-wind / under-wind selection.
Auto Tension control with load-cells, carbon fibre rollers. +/- 100% Taper Tension control.
Swing-over clamp, self-centring mech. expanding shafts.
Plasma Pre-treatment system: Max 4 kW/mtr 40 kHZ
Cooling drum: 595 mm dia. Gas wedge injection for improved heat transfer.
167 mm dia. post-Coating roll for web cooling.
Chiller: auto controlled combined heating & cooling unit, Water/glycol cooling medium.
Min. -15 C +/-1 C. 5 min. to reheat to +20 C.
Water-cooled Drum shield for process drum protection. Also, adjustable edge shield for quick changing of web width.
6 digital AC Vector drives, operates in open or close-loop tension control.
Aluminium Evaporators: works at 5 x 10-4 mbar vacuum.
26 nos. 150 x 30 x 10 mm Intermetallic Evaporators, resistance heated.
1.6~24 mm dia. 99.8% pure Al-wire. 10 kg wire reel capacity.
11~13 V, 1000 amp installed power/ evaporator.
Stepper motor, thyristor controlled for wire feed for each evaporator.
2.2 O.D. +/-5% @ 700 m/min.
2800~3800 micro-ohms cm
Water-cooled troughs below each evaporator for debris collection.
Auto adjustment of Wire feed rate thru’ Closed-loop automatic Deposition Control system, non-contact multipoint deposition monitor & computerised feed-back.
Deposition monitor measures O.D. and ohms/sq.
Vacuum Pump sets:
Max 5x10-4 mbar in Coating zones. <5 min. Pump downtime.
For Web coating: 630 cu.mtr./hr Busch NC630C dry rotary Screw Pump,
3900 cu.mtr./hr Aerzen GM 2000CMC Booster Pump,
4 x20” 17,500 ltr/sec Diffusion Pumps.
200,000 ltr/sec cryogenic Polycold Maxcool 4000.
For Web Winding:630 cu.mtr./hr Busch NC630C dry rotary Screw Pump,
3900 cu.mtr./hr Aerzen GM 2000CMC Booster Pump,
13,000 cu.mtr./hr Aerzen GL 8000CMY Booster Pump,
200,000 ltr/sec cryogenic Polycold Maxcool 4000.
All booster pumps are inverter controlled
Web Viewing Cameras: 4 nos., to view unwinding & rewinding, Monitor Screen.
Control System:
Operator console touch-screen, Remote Diagnosis system.
Operator System software, Siemens S7 PLC, Siemens WinCC SCADA.
Web coating screen, with bar chart to displays deposition profile, wire
feed rates & evaporator power levels.
Web winding screen real time to display & control of all winding parameters.
Vacuum system screen to display operation condition of vacuum pump set & vacuum performance.
Web cooling screen to show the operation status of the chiller.
Alarm screen for fault diagnosis display.
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