Reference Number
UM - 25443
Product
Bobst K5 Vacuum Metallizer
Location
Europe
Product Details
Brand & Model: BOBST K5
Type: Vacuum thermal evaporation with ALU
Type of production: BOPP 10-50 um, CPP 15-50 um, PET 8-50 um, LDPE 25-50 um, Nylon 12-50 um, UPVC 20-100 um.
Web width: 2.450 mm
Diameter unwinding/rewinding reels: 1.000 mm
Mechanical speed: 840 m/min
Winding Tension: 49-435 N, Max Drum Tension: 1291 N
Inch speed: 10 m/min, in forward or reverse direction.
Other details:
Unwind & Rewind Systems: 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 5×10-4 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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