Machine Control System

Entire machine is controlled and supervised by PLC/PPC. The ‘BUS SYSTEM’ for machine automation maintains tight synchronization between PLC/PPC and drives, providing fast, reliable, and errorless communication. Master control panel consists touch screen operator interface located at rewind side and slave control panel at unwind side provide easy access

Frame Structure

Carefully and methodically machined strong and sturdy heavy duty steel frame structure machined on CNC-VMC, maintains accuracy over long dependable life. Distinctively designed structure ensures less vibration even with optimum line speed. All components undergoes extensive tests, ensures optimum performance and longer equipment life.

‘integral’ Shaftless Unwinder

Unwinder with hydraulic operated reel lifting system consists of two solid arms mounted on precision linear guide ways, which allows lateral displacement for web guiding. This arm assembly is mounted on a hydraulic operated pivoting steel fabrication for pickup of the parent reel from the floor level to working position. Mechanical self expanding chucks suitable for 76mm and 152mm cores are provided.

Unwind Tension Control

Automatic web tension control system on unwind consists of latest generation AC digital drive, servo motor and pair of load-cell. The system maintains tension precisely through out the reel run up to the core diameter.

Web Guiding System

Digital web guiding system maintains precision alignment of the web entering the draw unit. The web is guided by edge and printed (continuous or broken) lines. The system consists of true color line sensor and PMDC motor etc.

Draw Unit

By using latest generation AC digital drive and servo motor, web tension control is maintained precisely. The draw unit pulls the substrate from unwind and isolates the tension between unwind and rewind.

Draw unit mainly composed of AC servo motor and drive, mat chromium plated steel roller and pneumatically loaded rubber covered nip roller.

Rewind Tension Control

Hi-performance differential winding system consists of AC digital drive, servo motor, load-cells, ultrasonic sensor etc. The system allows the operator to enter the set tension, taper tension and over speed values according to the nature of substrates and the system will maintain the desired tension automatically.

Differential Winding System

Hi-performance differential winding system utilizing ‘Ball lock’ units, ensures constant tension regardless of different width of the reel being rewound on the same shaft. Normal web profile variation is automatically compensated by the differential winding system. It also increases productivity and minimizes ‘downtime.’

Lay-on Rollers

Each rewinder is equipped with pneumatically operated lay-on assembly, consists of PU coated rubber rollers and backing rollers on a pair of arms mounted over linear guide ways.

The linear displacement of the arms allow desired positioning of lay-on and also provide ease to replace different widths of rubber rollers.

Slit Reel Unloading

Pneumatically operated shaft supporting arms facilitate quick unloading of the slit reels from differential shafts to unloading stand. The unloading stand provides support to cantilevered differential shafts during unloading operation.