ROBOSLIT® OHP Dual Turret Slitter Rewinder - Over Head Path

The ROBOSLIT® OHP (Over Head Path) Dual Turret Slitter Rewinder offers the best hygienic environment and is especially indicated for pharmaceutical and food industries. The overhead path also offers an easier web passage and better access to key areas of the machine while it runs at its rated speed of 800 m/min. A rewind changeover sequence, almost all of which is accomplished with the machine in operation, enables the machine to consistently deliver output levels that are 1.6 to 2.5 times as compared to duplex machines.

Dual turret rewinds with a 30 seconds changeover
Unwind unit separated by a bridge
Hygienic work environment due to overhead path
Easy web threading and free cutter access
Horizontally pressured lay on rolls
Pneumatic swivel arm off loader
Integrated SCADA system, complete with various reports, logs and value added features
Advanced material handling options
Speeds upto 800 m/min

Specifications of ROBOSLIT® OHP

Position , type of unwind Separate
Maximum web width 1300 mm (1650 mm)
Maximum unwind diameter 1000 mm (1200 mm)
Unwind core inner diameter 76 mm and 152 mm
Maximum rewind diameter 600 mm
Rewind core inner diameter 76 mm (152 mm/70 mm on request)
Minimum slit width 50 mm (25 mm)
Maximum machine speed 800 m/min
Materials handled Plastic films, flexible packaging laminates
(Paper and Aluminum foil based laminates on request)

Standard Features

Unwind Shaftless with motorised self centering
Unwind reel loading Electro mechanical unwind floor lift
Unwind reel rotation Bi-directional
Unwind tension control Servo motor and load cell feedback
Web guide equipment Digital line guide with a motorized actuator
Slitting technique Standard- pneumatically actuated Razor in groove, razor in air
On request- pneumatically actuated, tangential, spacer less rotary cutting mode for paper
Trim removal Standard- ventury blower, rigid air duct with traversable trim pick up points
On request - trim rewinder
Rewinding technique Differential rewinding through slippage of ball locks controlled through diameter feedback influenced by an adjustable taper
Lay on assembly "S" wrap, pneumatically pressured, on a horizontal carriage
Slit reel displacement By pneumatic retraction of support arms and motorised ejection; release of reels aided by slow reverse rotation of shafts
Off loader type Swivel arms
On request- one touch off loader to transport the ejected reels to floor/ pallet level
Drive 4 nos. vector controlled servo motors for unwind, main and dual turret rewind sections
Machine stop conditions Rewind diameter / unwind diameter / meterage counter / manual intervention / emergency
Rewind core positioning Laser assisted for upto 10 cores
Static management Elimination through use of active ionizing bars with HVAC power source for each rewind section
Operator interface Touch screen HMI- rewind and unwind ends

Possibility of Optional Features

Shear cutting mode – tangential, for paper and aluminum foil based laminates
Electro-mechanical, linear floor lift for unwind reel
Splice table at unwind for registered joints
Rewinding on 152 mm/ 70 mm ID rewind cores
Motorized ejector for displacing the rewind reels on to the off loader
One touch off loader to transport the ejected reels to floor/ pallet level
Trim winding unit for the compact accumulation of trim waste

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