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Double Shaft Paper Slitter Rewinder (Duplex Surface Center Slitter)
Split the Workload. Double the Output.
When slitting thin, lightweight, or slippery paper, winding all the finished rolls onto a single shaft is a recipe for disaster—the rolls easily interlock, stick together, and become impossible to separate. Our Double Shaft Paper Slitter Rewinder solves this problem completely using an advanced Duplex (Two-Shaft) Rewinding System.
By alternating the slit paper webs between an upper shaft and a lower shaft, this machine eliminates roll interlocking entirely. It allows you to slit massive master paper rolls into dozens of narrow, flawless coils simultaneously at extreme speeds, making it the ultimate machine for high-volume paper converters.
Smart Structural Anatomy of the Machine
- The Unwind Zone: Features an automatic web-alignment sensor (EPC/LPC) that detects even a 0.1mm shift in the raw paper and instantly corrects it.
- The Slitting Zone: Ultra-sharp, hardened alloy steel knives cut the paper cleanly, generating zero paper dust.
- The Duplex Rewind Zone: Two independent, air-expanding friction shafts spin in perfect harmony, controlled by independent motors to maintain precise tension balance.
- The Trim Disposal Zone: A high-pressure air blower instantly sucks away the waste edges of the paper and shoots them into a collection bin.
The Double Shaft Advantage: Why It Is Superior
- Zero Roll Interlocking: Because adjacent paper strips are wound onto two separate shafts (odd strips on the top shaft, even strips on the bottom shaft), there is absolutely zero chance of the finished rolls sticking together.
- Differential Slip Winding: Paper rolls often have minor thickness variations across the web. Our double shaft system uses specialized friction rings that allow each individual roll to slip and adjust independently, ensuring 100% equal tightness across all rolls.
- Rapid Discharge & Reloading: While the machine is rewinding on one side of the shaft, the operator can easily prepare the cores or unload finished rolls from the other side, cutting your machine downtime by half.
- Ultra-Clean Razor & Shear Slitting: Equipped with a dual-cutting assembly that handles everything from delicate 30 GSM tissue paper to heavy 200 GSM craft paper with absolute edge perfection.
- Pneumatic Lay-on Rollers: Separate rubber press rollers apply individual, gentle pressure on both shafts, squeezing out any trapped air for a rock-solid, professional finish.
How This Machine Multiplies Your Factory Profits
- Perfect for Narrow Ribbon Slitting: If you need to make narrow paper ribbons or small tape-like paper coils, a single shaft machine cannot handle it. This duplex machine is built specifically to handle high-density narrow slitting perfectly.
- Massive Reduction in Rejections: No more ruined rolls due to overlapping or loose winding. Every single roll that leaves this machine is market-ready, reducing your factory rejection rate to 0%.
- One-Man Operation: Thanks to the fully automated tension tracking and centralized touch-screen controls, a single operator can manage the entire high-speed system effortlessly.
Technical Specifications
|
Parameter |
Specification |
|---|---|
|
Configuration Type |
Duplex (Double Shaft) Surface Center Rewinding |
|
Suitable Materials |
Thermal Paper, Kraft Paper, Writing Paper, Laminated Paper, Foil-Paper |
|
Material Thickness range |
30 GSM to 300 GSM |
|
Max Unwind Web Width |
1000 mm / 1300 mm / 1600 mm / 2000 mm |
|
Max Operational Speed |
Smooth performance up to 350 - 450 Meters / Minute |
|
Rewind Shaft Type |
Dual Pneumatic Friction Ball Shafts (Air Shafts) |
|
Minimum Slitting Width |
From 20 mm onwards |
|
Max Unwind / Rewind Dia |
Unwind: 1000 mm | Rewind: 600 mm |
|
Automation Brain |
Multi-Motor Synchronous PLC Control with Touch HMI Panel |