You have a roll of material thats too wide for your die cutter, printer, laminator or other roll-fed processes. Now what?
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You want to reduce material cost and inventory. You can do so by buying standard-size rolls and slitting them into the exact size you need.
We build top quality slitting machines for the converting industry. In converting, slitting refers to the process cutting large rolls of material into narrower rolls.
The large roll is typically referred to as the master or parent roll. A slitting machine converts a master roll into one or more narrower rolls.
Because of economies, master rolls are often made as large as possible. When these master rolls are not the correct size for your requirements a slitting machine can reduce their width or even their yardage to fit your process.
Almost any flexible material is a candidate for slitting.
Some of the common materials are:
There are two distinct types of slitting machines: roll slitters and slitter rewinders. Both are commonly referred to as slitting machines. Yet both have distinct differences.
Each has its advantages depending on your slitting requirements. We offer a wide range of slitters. We produce both roll sitters and slitter rewinders.
Roll slitters have a variety of names such as:
Roll Slitters use a large circular blade or fixed band blade to cut all the way through a roll of material. This machine cuts down through the core the material was wound on.
The core of most master rolls is a 3 (7.62cm) ID paper core. The master roll does not need to be unwound. You can skip the time-consuming process of aligning slitting blades and empty cores.
Rosenthal Roll Slitters are designed to operate in manual models. An operator positions and pulls the blade through the roll of material.
This video is a demos a manually operated Rosenthal Super Roll Slitter in use.
Automatic models are PLC controlled with auto-positioning and cutting.
These types of slitters are ideal for cutting various types of materials. Materials that are suitable for slitting include:
Roll slitters have several advantages over slitter rewinders, including:
Watch this video of a manual Band Slitter in operation.
Slitter Rewinders slit the master roll into any desired width rolls. They first unwind the master roll then pass the entire web through a series of slitters. Afterward, it rewinds each section onto a new core.
Slitter rewinders have an unwind for holding the master roll. They have a multi-blade slitting station with adjustable slitting heads. This helps cut the wide material into the required widths. They also include single or duplex rewind shafts. These shafts are for holding the empty cores to rewind the slit material.
Slitter rewinders can be outfitted with various slitting styles. Razor Slitting, Shear Slitting and Score Slitting (also known as Crush Slitting) are the most common methods.
Slitter rewinders can not only cut material into narrower rolls but can rewind material from one roll to another.
A digital counter lets you measure the amount of material you rewind.
A slitter rewinder can be configured to your specific industry needs and budget.
Basic Features:
A basic slitter rewinder will have features including:
Available Upgrades:
You will get efficient and thoughtful service from Eastsign.
An upgraded slitter may have other options including:
Differential shafts are adjustable to allow tension on the same shaft to balance from one slitting roll to the next. This is especially important when material thickness varies across the web.
Slitter Rewinders have the following advantages over roll slitters:
We build slitter rewinders, manual roll slitters, automatic roll slitters, and rewinders. Each machine is built to order in the USA.
Companies large and small use Rosenthal Slitters for converting a wide variety of materials.
Examples of Materials Suitable for Slitting Include:
adhesive vinyl
tape
premask
wovens and non-wovens
banners
awnings
tents
fabric and felt
leather and suede
film
foam and foam tape
gaskets
rubber
paper
PVC
polyester
polyethylene
polyurethane
and many other materials
If youd like to see other Rosenthal Slitting Machine products in action, visit our YouTube channel.
A closer look at the three main types of slitting; Razor, Shear and Score.
There are three main slitting methods for slitter rewinders and it is important to understand which method or methods work best for your material mix. The following is a look at the 3 main types, their advantages, and the products on which they generally work best.
Razor Slitting uses razor blades mounted at an angle in individual holders or as multiples in cassettes to slit the moving web. There are two main types of razor slitting; Razor-in-Air (top) and Razor-in-Groove (bottom). The former requires no extra support at the slitting area and is better for slower speeds. The latter uses a roll with grooves that provide additional support at the point of slitting for higher running speeds. Razor slitting has low tooling costs, with simple adjustment and maintenance. Its generally best used for thin films and light foils.
Shear Slitting uses a male and a female circular knife to create a rotating scissor effect on the incoming web. The female knives are shaft mounted and the male knives can be in individual holders (left) or shaft mounted (right). This method of slitting provides excellent slit quality at high speeds, reduced dust generation, and great knife longevity. Shear slitting can be used on a wide variety of materials including, but not limited to: films, paper, laminates, tapes, textiles, foils and more.
Score Slitting or Crush Cutting is likely the most widely used form of slitting, especially for older slitter rewinders. This method uses a rotating knife pressed against a hardened roller, sometimes referred to as an anvil roll or crush roll. As with razor slitting, the adjustment is simple when changing from one slit width to the next. Much like shear slitting, this can be used on a variety of materials as well including tapes and self-wound adhesives, textiles, non-wovens, foams, rubber and more.
Each of these three slitting methods have proven their effectiveness in the industry. If your material mix lends itself to more than one form of slitting, consider having multiple in one machine. At Elite Cameron it is common for us to supply machines with two, generally shear and razor or score and razor, but weve also supplied machines with all three forms of slitting.
The company is the world’s best Slitting Machine Manufacturer supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.