Plastic Slitting Machine

Product Overview

Jiuyi Machinery builds heavy-duty plastic slitting machines engineered to convert wide master rolls of flexible films, laminates, and technical substrates into high-precision narrow rolls. Built on annealed steel frames (30 mm to 50 mm thickness) with closed-loop tension feedback, these systems eliminate edge burrs, material elongation, and telescoping rewind defects during high-speed production runs.

Machine Types

Duplex Slitter Rewinder

Employs dual independent rewind shafts driven by dedicated torque motors. Configured for BOPP, PET, PE, and cast films requiring distinct tension profiles across lanes.

Turret Slitter Rewinder

Integrates an automatic indexing mechanism for continuous, non-stop roll changes, eliminating downtime in high-output plants.

Cantilevered / Razor Slitter

Utilizes razor blades in air-groove housings or shear assemblies. Purpose-built for thin-gauge films, release liners, and adhesive tapes.

Heavy-Duty Sheet Slitter

Features reinforced structures and hydraulic roll-loading arms for thick extrusion sheets and woven geotextiles exceeding 3 mm gauge.

Key Features

Closed-Loop Tension Regulation:

Siemens PLC interfaces with load cells and magnetic powder/servo brakes to automatically scale torque as roll diameters fluctuate.

Automatic Web Guiding (EPC/LPC):

Ultrasonic and optical sensors track reference lines or edges, commanding a linear actuator to maintain lateral alignment within +/-0.1 mm.

Programmed Knife Positioning

Motorized direct-drive shear holders position automatically via pre-loaded coordinates to minimize setup error.

Laser Core Alignment

Synchronized laser projectors cast exact core placement coordinates onto the rewind shaft, removing manual measurement steps.

Trim Evacuation

High-velocity Venturi suction blowers extract edge trimmings in real-time, preventing accumulation in the rewind zone.

Technical Specifications

Model Parameter	JY-SL-1300	JY-SL-1600	JY-SL-2000
Max. Unwinding Width	1300 mm	1600 mm	2000 mm
Max. Unwinding Diameter	800 mm (Opt. 1000 mm)	800 mm (Opt. 1000 mm)	1000 mm
Max. Rewinding Diameter	600 mm	600 mm	800 mm
Mechanical Speed	500 m/min	500 m/min	400 m/min
Working Speed	400 m/min	400 m/min	300 m/min
Min. Slitting Width	30 mm	30 mm	50 mm
Slitting Tolerance	+/-0.15 mm	+/-0.15 mm	+/-0.2 mm
Total Power Load	22 kW	25 kW	32 kW
Net Machine Weight	Approx. 4.5 Tons	Approx. 5.2 Tons	Approx. 6.8 Tons

Applications

Flexible Packaging: BOPP, PET, CPP, LDPE, HDPE, and nylon films for vertical form-fill-seal (VFFS) and barrier pouches.

Barrier Webs: Aluminum foil laminates, metallized films, and multi-layer co-extruded structures for food and pharmaceutical packaging.

Industrial Substrates: Lithium-ion battery separators, PVC cable wrap, optical window films, and release liners.

Non-Wovens & Paper: Spunbond/meltblown non-woven webs, thermal paper, kraft stock, and coated label substrates.

Customization

Jiuyi Machinery alters base platforms to interface with established factory power grids and spatial layouts.

Unwind Mechanics: Shaftless hydraulic floor-pickup stands for master rolls up to 2 Tons, eliminating overhead crane dependency.

Slitting Assemblies: Interchangeable knife cassettes for rapid changeovers between circular shear knives, razor blades, and crush-cut pneumatic wheels.

Rewinding Shafts: Differential friction rings for inconsistent web thickness profiles; air-expansion and slip shafts configurable per run.

Automation Extensions: Automated finished-roll unloading trees, inline automatic core loaders, and computer vision inspection integration.

Company Advantages

01/

Rigid Structural Engineering: Main frames utilize annealed thick-wall steel plates (30 mm to 50 mm) machined on large-scale CNC boring mills to absorb vibration during high-speed acceleration.

02/

Tier-1 Electrical Architecture: Standard builds integrate Siemens or Schneider PLCs, servo drives, and low-voltage switchgear for local parts availability and stable communication.

03/

Balanced Rotary Components: All unwinding, pulling, and rewinding rollers undergo dynamic balancing to G2.5 grade, preventing centrifugal vibration at speeds exceeding 400 m/min.

04/

Direct Factory Control: In-house machining centers, strict component traceability, and transparent manufacturing schedules provide direct technical accountability from blueprint to delivery.

Manufacturing & Quality Control

CNC Machining Centers

Frame plates, roller journals, and cutter housings are processed on floor-type boring machines to maintain perpendicularity and coaxial tolerance within 0.02 mm.

In-House Roller Production

Aluminum guide rollers are hard-anodized, dynamically balanced, and coated with low-friction polymers to prevent scratching on delicate optical films.

Full-Load Factory Testing

Every machine undergoes a 4-hour continuous dry-run and simulated material test under operational tension prior to crating, verifying torque response and thermal limits.

Traceability & Documentation

Complete material mill test certificates, electrical schematics, PLC source code access (upon request), and QC logs are delivered with each unit.

Installation & After-Sales Support

Global On-Site Commissioning

Experienced mechanical and electrical engineers travel to client facilities for installation, leveling, line integration, and operator training.

Remote Diagnostic Support

Machines equipped with secure industrial router modules allow engineers to access PLC parameters remotely for troubleshooting and software updates.

Spare Parts Inventory

Standard replacement items-including shear blades, pneumatic seals, proximity sensors, and bearings-are stocked in central warehouses for immediate dispatch.

Maintenance Documentation

Comprehensive technical manuals and video tutorials cover routine preventive maintenance, bearing lubrication intervals, and tension calibration procedures.

FAQ

Q: What is the minimum slitting width achievable on standard machines?

A: The standard minimum slitting width is 30 mm using standard shear knife assemblies. Narrower strips down to 10 mm require specialized spacer configurations and razor blade holders.

Q: How does the machine prevent telescoping on uneven film rolls?

A: Telescoping is prevented through closed-loop tension control combined with independent differential friction rings on the rewind shaft, which slip independently to compensate for thickness variations across the master roll.

Q: What electrical power supply is required for export units?

A: Machines are custom-built to match regional power standards, including 380V/50Hz/3Ph, 415V/50Hz/3Ph, or 480V/60Hz/3Ph, complete with CE-compliant or UL-certified electrical panels.

Q: What is the standard lead time from order confirmation?

A: Standard machine models require 60 to 75 days for manufacturing, dynamic balancing, and factory testing. Custom lines with automated handling systems require 90 to 120 days.

Q: How do engineers handle overseas installation and training?

A: Engineers arrive on-site with complete tooling kits to oversee mechanical anchoring, electrical hookup, trial runs, and full operational training for your technical crew over a 5 to 10-day period.

We're professional plastic slitting machine manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade plastic slitting machine from our factory. Contact us for quotation.