Wenzhou Sanhui Machinery Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of center surface slitter rewinder in China. With abundant experience, we are able to meet the needs of the majority of our customers. Welcome to wholesale customized center surface slitter rewinder at competitive price from our factory.
This Center surface slitter rewinder is fitted with three separate drive motors and built with a central rewinding framework, specialized in precision slitting and rewinding of various rolled substrates. It is compatible with raw materials including PE, PP, PET, BOPP, PVC film, aluminum-plastic composite film, kraft paper and heavy kraft board. Boasting high automation and steady operation, this Center surface slitter rewinder is widely applied to production lines for flexible films, paper products and multi-layer composite packaging materials.
The unwinding unit adopts a split shaftless hydraulic feeding design, supporting both 3-inch and 6-inch paper cores with a maximum outer diameter of 1200 mm for raw mother rolls. Hydraulic components automatically lift, lower and lock the material rolls, while magnetic powder brakes deliver stable basic tension. The machine comes standard with a Bat Technology web guiding controller, which tracks web edges, printed register lines and color markers in real time with a guiding accuracy of ±0.1 mm. Customers pursuing superior processing standards may upgrade to original German E+L web guiding equipment. Convenient control buttons are installed near the unwinding zone, allowing operators to start, stop and adjust speed on-site and cut down labor workload. A balance roller is mounted between the unwinding and traction sections to automatically fix uneven tension on both sides of the web, greatly improving the processing precision of the whole Center surface slitter rewinder.
Both the traction mechanism and two rewinding stations are equipped with MSK asynchronous servo motors matched with German Rexroth frequency converters, with timing belts transferring torque smoothly. Built-in encoders capture real-time operational data, limiting the length measurement error within 0.001 meter. Practical functions such as automatic stop at preset lengths and total output statistics are available. A dedicated edge blowing fan is integrated to continuously blow away tiny burrs generated during cutting. Ten groups of high-speed steel circular cutters are equipped to produce smooth, burr-free cutting edges, which is one of the core advantages of our Center surface slitter rewinder.
The rewinding zone features a dual-station central winding structure paired with two automatic differential air-expansion shafts, and the maximum outer diameter of finished rolls reaches 600 mm. Two independent servo units regulate rewinding tension separately. Encoders feed real-time roll diameter data back to the PLC program, which dynamically adjusts taper tension to fundamentally eliminate defects such as material stretching, wrinkling and uneven winding layers. A side pneumatic pusher transfers finished rolls onto a flip unloading rack for simple and time-saving roll removal, optimizing the working efficiency of the Center surface slitter rewinder.
The overall electric control system consists of a Siemens PLC host and an MCGS touch screen under bus control mode. A reserved Ethernet communication port enables remote online fault inspection. The system integrates full sets of control programs including inertia compensation, roll diameter conversion, audible and visual fault alerts, as well as parameter storage and recall. Core machine parts are sourced from well-known premium brands: Schneider low-voltage electrical fittings, Omron proximity sensors and precision NSK bearings from Japan. Cylinders and linear guides are made of robust, wear-resistant materials to extend the equipment's service life and reduce maintenance frequency for the Center surface slitter rewinder.
This model offers an effective processing width of 1600 mm and handles rolls with thickness ranging from 0.012 mm to 0.3 mm. Its maximum operating speed hits 300 meters per minute with adjustable tension between 0 N and 300 N, and the total power consumption stands at around 23 kW. The machine runs stably and continuously in workshops where the ambient temperature does not exceed 40°C and relative humidity stays below 60%. Optional attachments such as a waste edge recycling rewinder and static eliminator can be installed on demand to flexibly meet diversified production and processing demands of different clients.
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