SHM-S Four-Axis Automatic Roll Changer and Slitting Machine | Non-Stop Turret Slitter Rewinder for Plastic Film
The SHM-S four-axis turret slitter rewinder is specially designed for non-stop plastic film slitting and rewinding. It combines a four-axis turret rewinding structure, automatic finished-roll change, hydraulic shaftless unwinding, intelligent laser core positioning, and full servo closed-loop tension control. With a maximum operating speed of 600 m/min and EPC correction accuracy of /-0.1mm, it is the ideal high-volume slitting solution for BOPP, PET, PVC, PE, and CPP flexible packaging film converters.
Core Functions and Features
Four-Axis Turret Automatic Roll Change System
The turret-type rewinding structure uses four pneumatic friction shafts that rotate to enable fully automatic roll change without stopping the machine. This non-stop production capability dramatically increases output for high-volume film converting operations, eliminating the downtime traditionally associated with manual roll changes.
Self-Adaptive Unwinding Width Adjustment
The unwinding unit is equipped with movable spreading arms for automatic width adjustment. It flexibly adapts to materials of various specifications and widths without manual adjustment, greatly improving operational convenience and reducing setup time between different product runs.
Automatic Hydraulic Shaftless Loading
The fully automatic hydraulic loading system handles the entire roll loading process without manual intervention. Available in 3-inch and 6-inch shaftless unwinding configurations, it ensures firm clamping and easy roll change while delivering stable and efficient feeding for rolls up to 1500mm diameter.
Pneumatic Splicing Table
The pneumatic splicing table enables stable and precise material splicing, smoothly connecting feeding and processing procedures. It prevents material abrasion during splicing and guarantees continuous production without film waste at the splice point.
Servo Closed-Loop Constant Tension Control
The high-performance servo drive system with built-in closed-loop tension control monitors and adjusts unwinding tension in real time. It maintains constant tension to avoid material stretching, deformation, and deviation, ensuring superior product quality across the full speed range up to 600 m/min.
Intelligent Laser Core Positioning
Equipped with intelligent laser core positioning for fast and accurate core alignment. This function shortens setup time, improves roll changing efficiency, and ensures precise positioning accuracy for each rewinding cycle, reducing material waste from misaligned cores.
Automatic Blade Change for Rewinding
Four sets of pneumatic friction shafts for rewinding are equipped with an automatic blade changing system. Blade replacement is fast and smooth with no manual operation required, ideal for mass continuous production where minimizing stoppage time is critical.
Automatic Rewind Cutting and Pressure Control
The integrated automatic cutting system finishes cutting immediately after rewinding with high precision and speed. The automatic pressure control system adjusts roller pressure in real time, keeping finished rolls evenly tensioned and neatly wound to upgrade product quality.
Automatic Finished Roll Unloading
The automatic unloading system conveys finished rolls to the designated position upon completion of rewinding. It saves labor, improves efficiency, and sustains non-stop production without requiring operator intervention for roll removal.
Optional Automatic Blade Adjustment
The optional automatic blade adjustment system can adjust blade position and spacing automatically according to production requirements. It is easy to operate and fits slitting of materials in different sizes, reducing changeover time between product specifications.
Technical Specifications
|
Model |
型号 |
SHM-S1100 |
SHM-S1300 |
SHM-S1600 |
SHM-S1800 |
|
Roll Width |
卷材宽度 |
1100mm |
1300mm |
1600mm |
1800mm |
|
Max.Unwinding Diameter |
放卷直径 |
0-1500mm |
0-1500mm |
0-1500mm |
0-1500mm |
|
Max.Rewinding Diameter |
收卷直径 |
600/800mm |
600/800mm |
600/800mm |
600/800mm |
|
Slitting speed |
分切速度 |
0-600/min |
0-600/min |
0-600/min |
0-600/min |
|
Correction Accuracy |
纠偏精度 |
±0.1mm |
±0.1mm |
±0.1mm |
±0.1mm |
|
Total Power |
总功率 |
26kw |
28kw |
30kw |
32kw |
|
Machine size |
机器尺寸 |
4100×2800×2150mm |
4400×2800×2150mm |
4950×2800×2150mm |
5150×2800×2150mm |
|
Machine Weight |
机器重量 |
5000kg |
5200kg |
5600kg |
6000kg |
Model Selection Guide
The SHM-S series is available in four standard working widths: 1100mm, 1300mm, 1600mm, and 1800mm. All models share the same 1500mm max unwinding diameter, 600/800mm rewinding diameter, 600 m/min max speed, and /-0.1mm EPC precision. Power ranges from 26kW to 32kW and machine weight from 5000kg to 6000kg. Contact Sanhui Machinery with your master-roll width and finished-roll size for model selection and a customized quotation.
Applicable Materials
BOPP Film Slitting
Biaxially Oriented Polypropylene (BOPP) film for packaging, printing, and lamination applications. The constant-tension servo system handles thin BOPP films without stretching or wrinkling, producing clean edge quality for downstream printing and lamination.
PET Film Slitting
Polyethylene Terephthalate (PET) film for electronics, thermal lamination, and packaging. The laser core positioning and EPC web guide ensure precise slit width accuracy for PET films used in high-precision applications.
PVC and PE Film Slitting
Polyvinyl Chloride (PVC) and Polyethylene (PE) films for flexible packaging, shrink wrap, and protective films. The four-axis turret system enables continuous high-volume production of narrow PVC and PE rolls for packaging converters.
CPP Film and Composite Films
Cast Polypropylene (CPP) film and multi-layer composite films for food packaging and lamination. The pneumatic splicing table and automatic pressure control ensure smooth processing of delicate composite film structures.
Why Choose the SHM-S
Non-Stop Production with Turret Roll Change
The four-axis turret structure eliminates production stoppage for roll changes. While two shafts are winding, the other two are being prepared. This continuous operation mode can increase production output by 30-40% compared to single-shaft slitters.
Full Automation Reduces Labor Cost
From hydraulic loading and laser positioning to blade change, cutting, pressure control, and unloading — the entire process is automated. A single operator can monitor the machine, significantly reducing labor costs for high-volume film converting operations.
Servo Closed-Loop Tension for Film Quality
The servo closed-loop constant tension system is specifically calibrated for plastic films. It prevents the stretching, deformation, and deviation that plague standard tension systems, delivering consistently high-quality finished rolls.
Customizable for Your Production Needs
Working width, roll diameter, material type, production speed, and optional control functions can be selected according to your actual production requirements. Sanhui sales engineers have over 14 years of experience and provide one-stop customized service.
Frequently Asked Questions
What is the maximum slitting speed of the SHM-S?
The SHM-S achieves a maximum operating speed of 600 m/min. The four-axis turret structure enables non-stop production at full speed, as finished rolls are automatically changed without stopping the machine. This makes it ideal for high-volume flexible packaging film production.
How does the four-axis turret roll change work?
The turret has four pneumatic friction rewind shafts arranged in pairs. While two shafts are actively winding finished rolls, the other two are in standby position. When the active rolls reach target diameter, the turret rotates 180 degrees, automatically splicing the film to the new shafts and cutting the finished rolls — all without stopping the machine.
What materials can the SHM-S process?
The SHM-S is specially designed for plastic films including BOPP, PET, PVC, PE, CPP, and composite films. The servo closed-loop tension control and /-0.1mm EPC correction ensure stable processing of thin and delicate films. For non-film materials like paper or aluminum foil, we recommend our dedicated paper slitter or aluminum foil slitter models.
What unwinding configurations are available?
The SHM-S uses hydraulic shaftless unwinding with 3-inch and 6-inch options. The movable spreading arms auto-adjust to different material widths without manual intervention. Maximum unwinding diameter is 1500mm, accommodating large master rolls for extended production runs.
What working widths are available?
The SHM-S is available in four standard widths: 1100mm, 1300mm, 1600mm, and 1800mm. Machine dimensions range from 4100x2800x2150mm to 5150x2800x2150mm, and total power ranges from 26kW to 32kW. Custom widths can be discussed with Sanhui engineering team.
Is the blade adjustment automated?
Yes. The rewinding section features automatic blade change with four pneumatic friction shafts. An optional automatic blade adjustment system can adjust blade position and spacing automatically according to production requirements, reducing changeover time between different slit width configurations.
