Duplex Cutters

Simple and Duplex Sheet Cutters

Heavy-Duty, High-speed, both Online and Offline Simplex and Duplex Sheet Cutters are and ideal choice for paper mills throughout the world today. To User-mills Surya means their full money-worth, while for the competitors Surya is the name to reckon with, in the world of sheet cutting.

To achieve perfectly square cut, maximum sheet production with minimum most-tolerances on cut sheets, Surya offers sheet cutters to handle 40-1000 GSM range of paper and board with suitable number of unwind stands. The unwind stands are built, keeping easy access and convenience of operator in mind. Mills can use up to 1 to16 reels at a time, depending on of course grammage of paper to be handled.

An extra conveyor replaces conventional over-lapping method and takes good care of sheet collection process. The salient feature of Surya sheet cutters is the provision of Micro-screw adjustment for effortless and silk-smooth sliding of entire cutting bed head for most efficient cost cutting operations, to ensure absolutely square-cut end product.

A well designed and precision engineered rubber grooved (manual or pneumatic) pressure roll provides for perfect gripping of the moving web, for its smooth onward movement to the cutting head. also, a perfectly engineered and critically located wooden grip roll with wooden strips in segment formation duly mounted on a steel roll ensures perfect anti-creasing action and for a smooth entry into the cutting head.

Online sheet cutters are eminently suited, particularly for papers of 100 GSM and above. Surya recommends offline sheet cutters for handling light grades of web below 100 GSM.

Technical Specifications:

Type of Sheet Cutter: Simplex or Duplex
Unwind reel width: In and up to 4000mm
Max. dia. of unwind reel stand: Usually 1200mm but up to 2000mm on demand.
Cutting speed (depending on length): upto 150 sheets/minute Max.
Cutting length range: 300 to 1650mm (as required)
Choice of drive motor: AC, DC, Eddy current
GSM range: 30 to 1000 GSM (papers to heavy boards)
Slitting arrangement: Side trimming, Center-Slitting or as required. (Manually or Pneumatically operated with heavy duty sliding arrangement for individual positioning of slitting knife system, even when machine is in operation)
Cutting accuracy: +/- 1mm Generally

Salient Features:

* Heavy duty CI main body frame to ensure sturdiness and silent operation. * Dynamically balanced rotary cutting head, for silk smooth, super-fast sheet cutting with hardened and mirror ground fly and dead knives of AISI-D3 alloy steel edge. * Dynamically balanced, nickel-plated seamless pipe rollers of heavy wall thickness for smooth and high-speed movement of paper. * Slitting station equipped with top and bottom circular shear slitting knives, made from AISI-52100 alloy steel, heat treated to 58-60 HRC, for side trimming, centre-slitting and other operations. * Mechanical or motorized (hydraulic option also available) lay-bouy table, to collect sheets to ice block perfection, for further packing operations. (Manually or pneumatically operated) * An extra throw roller for perfect sheet collection on table, after conveyor. * A well designed, maintenance free conveyor system with nylon sandwich endless belts, making sheet cutting process a pleasure. * Sheet cutter provided with safety guards and with operating platforms wherever necessary. * Mechanical or pneumatic clutch arrangement can be provided on main cutting head for engaging or disengaging the cutting head, while sheet cutting is in progress or at the time of setting up of knives. * Sheet overlapping process especially for low GSM grades of paper, by the provision of additional conveyor system for easy and smooth collection of sheets on the lay-buoy table. * Option for accurately adjusting sheet lengths by taper cone pulley system or PIV gearbox arrangement. * Surya heavy duty sheet cutter has the capability to handle a wide spectrum of webs ranging from light to heavy GSM i.e 40-1000 GSM. While handling light grammages of paper, its is effortlessly possible to use many unwind stands at a time, to maximize sheet production. * Surya Simplex Sheet Cutters come with overlapping facilities while an extra conveyor takes good care of the Duplex Sheet Cutter.