Jumbo / Stock Lot Slitting Machine

Jumbo Roll Slitting Machine Manufacturer in India

Label stock, sticker paper and similar materials are made in wide jumbo rolls, far wider than any label press can take. Before a converter can print, the jumbo roll has to be slit down to the press width. The same is true of stock lot rolls, the odd-width or leftover reels that are bought in bulk and need to be cut to a usable size. A jumbo roll slitting machine does this job, turning one wide reel into several narrower reels of the width the next machine needs.

RK Label Printing Machinery Pvt. Ltd. manufactures jumbo and stock lot slitting machines in Ahmedabad, Gujarat. The range on this page has two machines: the RK DS-60 Drum Slitter, which takes a 1500 mm wide roll and winds finished rolls on a drum winding system, and the RK DPS-40 Duplex Slitter, which takes a 1050 mm wide roll and winds on an up and down system. The DS-60 runs at 80 m/min and the DPS-40 at 100 m/min. Both have an electronic metre counter with auto stop, and both collect the trim with an air blower.

This page explains what these machines do, how the drum slitter and duplex slitter differ, and how to choose between them.

Model No: RK DS-60
Max Paper Width: 1500 mm
Speed: Machine Speed – 80 m/min
Machine Type: Roll To Roll Drum Slitter Machine

Drum Slitter

Model No: RK DPS-40
Max Paper Width: Paper feeding Size 1050 mm
Speed: Machine Speed 100 m/min
Machine Type: Roll To Roll Duplex Slitter Machine

Duplex Slitter

01 — What Is It

What Is a Jumbo Roll Slitting Machine?

A jumbo roll slitting machine is a roll to roll slitter built for wide, heavy parent reels. The jumbo roll is loaded on the unwinding unit, the web is guided straight, and a row of blades cuts it lengthwise into strips. Each strip is wound onto its own core on the rewinding unit, and the trimmed edge is removed by an air blower. A metre counter measures the length wound and stops the machine at the set figure.

The difference from a label slitter is scale. A label slitter handles a 320 mm printed web. A jumbo slitter handles a 1050 mm or 1500 mm parent reel, with an 800 mm unwind diameter on the DS-60 and 600 mm on the DPS-40, and needs a larger motor, a wider frame and heavier winding shafts.

Stock lot slitting is the same operation applied to leftover or odd-size reels. Converters buy such reels at a lower price and slit them to the sizes their presses and customers use.

02 — Range

The RK Jumbo Roll Slitting Machine Range

Drum Slitter (RK DS-60)

The RK DS-60 is a roll to roll drum slitter machine for a maximum paper width of 1500 mm. The unwinding unit takes an 800 mm roll and a web guide system keeps the reel in register. Slitting is by rotary blade, with an air blower for waste trimming. The rewinding unit is a drum winding type with a double winding shaft system, taking rolls up to 600 mm depending on the slitting width. A 7.5 HP three phase AC variable speed main motor drives the machine at 80 m/min. The machine is 14 ft long, 9 ft wide and 6 ft high. It suits converters and stock lot traders who handle the widest reels and need firm, even winding on the drum.

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Duplex Slitter (RK DPS-40)

The RK DPS-40 is a roll to roll duplex slitter machine with a paper feeding size of 1050 mm. The unwind is on a 3 inch air shaft, takes a 600 mm roll and has an electronic web guide and an automatic tension controller with load cell and pneumatic brake. Slitting is by rotary and normal shear blades, 10 pieces, with an air blower for waste trimming. The rewinding unit is an up and down type on 3 inch air shafts taking rolls up to 600 mm depending on the slitting width, with the slit strips shared between the two shafts so that neighbouring strips wind apart from each other. A 7.5 HP three phase AC variable speed main motor runs the machine at 100 m/min. It is 7.5 ft long, 6.5 ft wide and 4 ft high, about half the length of the drum slitter. It suits plants slitting 1050 mm reels that want a compact machine.

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03 — Key Features

Key Features of RK Jumbo Roll Slitting Machines

Wide Parent Reels

The DS-60 takes a 1500 mm wide reel from an 800 mm unwind diameter and the DPS-40 a 1050 mm reel from a 600 mm unwind diameter.

Web Guide on the Unwind

Both machines have a web guide system on the unwinding side so the wide reel runs straight into the blades.

Rotary or Normal Blade Slitting

The DS-60 slits with rotary blades and the DPS-40 with rotary and normal shear blades, each matched to the machine's width and winding style.

Drum or Duplex Rewinding

The DS-60 winds on a drum with a double winding shaft system. The DPS-40 winds on an up and down duplex system. Both take finished rolls up to 600 mm, depending on the slitting width.

Electronic Metre Counter With Auto Stop

Both models count the metres wound and stop automatically at the set length, so every finished roll carries the same length.

Air Blower Waste Trimming

The edge trim on both machines is drawn away by an air blower, keeping the winding area clear.

Variable Speed AC Drive

A 7.5 HP three phase AC variable speed main motor on both machines lets the operator match the speed to the material, up to 80 m/min on the DS-60 and 100 m/min on the DPS-40.

04 — How It Works

How Does a Jumbo Roll Slitting Machine Work?

The jumbo or stock lot reel, up to 800 mm in diameter on the DS-60 and 600 mm on the DPS-40, is loaded on the unwinding unit. On the DPS-40 the unwind is a 3 inch air shaft. The web guide senses the edge of the reel and keeps the web tracking straight as it feeds forward.

The web passes the slitting station, where the blades, rotary on the DS-60, rotary and normal shear on the DPS-40, are set at the required widths and cut the web into strips. The trimmed edge is drawn away by the air blower.

The strips then wind on the rewinding unit. On the DS-60 the strips wind on the drum winding system with its double winding shafts. On the DPS-40 they are split between the upper and lower shafts of the duplex system. The electronic metre counter measures the length and stops the machine at the target. The operator unloads the finished 600 mm rolls, fits fresh cores and starts the next set.

05 — Applications

Applications

Slitting jumbo rolls of label stock - bringing 1500 mm or 1050 mm parent reels down to press width.

Stock lot converting - cutting leftover or odd-width reels to sizes that sell.

Sticker paper suppliers - preparing reels for label printers in the widths they order.

Paper reel slitting - narrow reels for smaller printing and converting machines.

Feeding narrow web presses - keeping a flexo or tower press supplied with correctly slit reels.

Metre-counted reels - every finished reel wound to the same set length with auto stop.

06 — Materials

What Materials Can It Run?

These machines slit adhesive jumbo rolls and paper reels into ready-to-print label stock. The DS-60 handles reels up to 800 mm in diameter and 1500 mm wide. The DPS-40 handles reels up to 600 mm in diameter and 1050 mm wide. If you slit film, laminates or unusual substrates, share a sample with RK. The company runs a trial on the customer's own material before almost every order and confirms the blade and winding setup for it.

07 — Selection Guide

How to Choose the Right Jumbo Roll Slitting Machine

01How wide are your parent reels?Reels up to 1500 mm need the DS-60. Reels up to 1050 mm can run on the DPS-40.

02How do you want the finished rolls wound?The DS-60 winds on a drum with double winding shafts. The DPS-40 winds on an up and down duplex system.

03How much floor space do you have?The DS-60 needs about 14 ft by 9 ft. The DPS-40 needs about 7.5 ft by 6.5 ft.

04What power is available?Both machines use a 7.5 HP three phase main motor.

05What speed do you need?The DS-60 runs at 80 m/min and the DPS-40 at 100 m/min.

06What finished roll diameter do you need?Both take finished rolls up to 600 mm, depending on the slitting width.

07Do you need length control?Both have an electronic metre counter with auto stop.

08 — Why RK

Why Choose RK Label Machines?

RK Label Printing Machinery Pvt. Ltd. has manufactured printing and converting machinery since 1995 from its head office in GIDC Vatva, Ahmedabad, with three manufacturing units in Gujarat. Its jumbo and stock lot slitters are built by the same team that makes its label slitters, flexo presses and die cutters, so the machine that prepares your reels comes from the same supplier as the machine that prints them.

Building printing and converting machinery since 1995.

Three manufacturing units in Gujarat and customers in 23+ countries.

A trial on the customer's own material before almost every order.

Two proven models, drum and duplex, covering 1050 mm and 1500 mm reels.

Label slitters, inspection machines and presses from one manufacturer.

09 — Price

Jumbo Roll Slitting Machine Price in India

The price of a jumbo roll slitting machine depends on the model, the DS-60 drum slitter or the DPS-40 duplex slitter, and on any options. Prices are quoted ex-works Ahmedabad with GST at 18 percent extra. Engineer travel and stay for installation and training at your site are borne by the customer. Tell RK your reel width, reel diameter, the finished widths you need and your monthly volume, and the team will recommend a model and send a quotation.

10 — FAQ

Frequently Asked Questions

A roll to roll slitter built for wide parent reels. It cuts a jumbo reel of label stock or paper into narrower reels, trims the edge and winds each strip on its own core.

The same machine used to slit leftover or odd-width reels, bought as stock lots, down to sizes a converter can use or sell.

RK Label Printing Machinery Pvt. Ltd. manufactures the RK DS-60 drum slitter and RK DPS-40 duplex slitter in Ahmedabad, Gujarat.

The RK DS-60 drum slitter takes a 1500 mm reel and winds on a drum with double winding shafts. The RK DPS-40 duplex slitter takes a 1050 mm reel and winds on an up and down system.

The DS-60 takes an 800 mm unwind diameter and a 1500 mm width. The DPS-40 takes a 600 mm unwind diameter and a 1050 mm width. Finished rolls are up to 600 mm on both, depending on the slitting width.

The DS-60 runs at 80 m/min and the DPS-40 at 100 m/min.

The DS-60 is 14 ft long, 9 ft wide and 6 ft high. The DPS-40 is 7.5 ft long, 6.5 ft wide and 4 ft high.

Both machines have a 7.5 HP three phase main motor.

The price depends on the model and configuration and is quoted ex-works Ahmedabad with GST at 18 percent extra. Ask RK for a quotation with your reel details.

Get the Right Jumbo Roll Slitting Machine for Your Production

Tell RK Label Machines the width and diameter of your parent reels, the finished widths you sell or feed to your presses, and your monthly volume. The engineering team will recommend the DS-60 or the DPS-40 and send a quotation for your jumbo roll slitting machine.

+91 99789 43687 info@rklabelmachines.com

Get a Customized Machine Quote

Our engineers are ready to help you choose the right production line. Send us your requirements for a detailed proposal.

+91 99789 43687 info@rklabelmachines.com