SHFJ-C Shaftless Rewinder | Dual Hydraulic Rewinding Machine for Paper, Film & Aluminum Foil Rolls

The SHFJ-C shaftless rewinder is a high-performance roll converting machine designed for integrated edge trimming, rewinding, and optional defect inspection. Its dual shaftless hydraulic unwinding and rewinding structure eliminates manual shaft insertion, dramatically reducing roll-change times and operator fatigue. The machine delivers stable, high-speed processing (up to 400 m/min) for paper products, aluminum foil, PVC, plastic films, and insulation materials—making it an ideal solution for paper product processing, printing and packaging, and flexible packaging production industries.

1. Dual Shaftless Hydraulic Structure: Maximized Roll-Changing Efficiency

Features a dual shaftless design with hydraulic unwinding and rewinding; eliminates the need for manual shaft insertion and simplifies clamping, drastically reducing roll-change times and operator fatigue. Ensures secure clamping and stable load-bearing capacity, accommodating large-diameter rolls and easily meeting continuous production demands.

2. Intelligent Edge-Trimming System: Enhanced Finished Product Quality

Equipped with a high-precision trimming mechanism to accurately trim roll edges, removing burrs and irregularities for flat end faces and tight, uniform roll structures. Includes an automatic waste removal system powered by a high-pressure blower for real-time scrap clearance, ensuring smoother production.

3. Full-Servo Constant Tension Control: Uniform Rewinding

Utilizes a full-servo drive system combined with automatic constant tension control; ensures smooth acceleration and deceleration without impact, maintaining consistent winding tightness. Effectively prevents wrinkling or stretching deformation, making it ideal for materials of varying thicknesses.

4. Intelligent PLC Control: Effortless Automation

Features a Siemens PLC intelligent control system integrating functions such as automatic length counting, alarms/stops for material depletion, preset length stops, and adjustable forward/reverse rotation. Offers fully automated management, simple operation, and stable performance, reducing the need for manual intervention and boosting productivity.

5. High-Sensitivity Automatic Edge Guiding: Stable Operation

Equipped with a high-sensitivity imported photoelectric automatic edge-guiding system that corrects material deviation in real-time. Enables high-speed, stable trimming and rewinding even with uneven raw material edges, ensuring neat finished rolls and significantly improved product quality.

6. Optional Vision Inspection: Streamlined Quality Control

Supports the addition of a synchronized vision inspection system for edge trimming; automatically identifies and marks defects via computer, completing trimming and quality inspection simultaneously. Greatly enhances inspection efficiency and reduces labor costs.

7. User-friendly splicing design for smoother operation

Dedicated splicing platforms come standard at both the front and rear of the machine, facilitating the marking of defects and the splicing/changing of materials for greater operational convenience. The rewinding unit features a hydraulic automatic unloading mechanism, making the removal of finished rolls effortless and ensuring a highly efficient, seamless workflow.

8. Customizable specifications for maximum adaptability

- Standard unwinding/rewinding diameters can be customized to requirements (standard options: 800mm/1000mm/1200mm; large-diameter models support up to 2500mm).
- Both unwinding and rewinding units support optional 3- to 6-inch air shafts; special sizes are available upon request.
- Machine working width and overall dimensions can be custom-tailored to the customer's facility layout and production needs.
- Maximum operating speed reaches 400 m/min, balancing high precision with high productivity.

Specifications showing only the width of the specific section：

Dual Shaftless Hydraulic Structure for Maximized Roll-Changing Efficiency

The SHFJ-C features a dual shaftless design with hydraulic unwinding and rewinding. By eliminating the need for manual shaft insertion, it simplifies clamping, drastically reduces roll-change times, and minimizes operator fatigue. The hydraulic system ensures secure clamping and stable load-bearing capacity, accommodating large-diameter rolls and easily meeting continuous production demands.

Hydraulic Unwinding Station

The unwinding unit supports roll diameters up to 1000mm as standard, with customizable options for 800mm, 1000mm, and 1200mm configurations. Large-diameter models can support up to 2500mm for jumbo roll processing. Optional 3- to 6-inch air shafts are available for specialized applications.

Hydraulic Rewinding with Auto Unloading

The rewinding unit handles roll diameters up to 800mm and features a hydraulic automatic unloading mechanism. Finished rolls are removed effortlessly, ensuring a highly efficient and seamless workflow without manual lifting.

Intelligent Edge-Trimming System with Automatic Waste Removal

Equipped with a high-precision trimming mechanism, the SHFJ-C accurately trims roll edges to remove burrs and irregularities, producing flat end faces and tight, uniform roll structures. An integrated automatic waste removal system, powered by a high-pressure blower, clears scrap in real time for smoother, cleaner production.

Precision Edge Trimming for Flat End Faces

The trimming mechanism processes material edges to specification, ensuring smooth, flat surfaces that optimize downstream converting operations such as printing, lamination, and slitting.

High-Pressure Blower Scrap Clearance

Trimmed waste material is continuously evacuated by a high-pressure blower system, preventing accumulation on the machine bed and maintaining production speed without interruption for cleanup.

Full-Servo Constant Tension Control for Uniform Rewinding

The SHFJ-C utilizes a full-servo drive system combined with automatic constant tension control. This ensures smooth acceleration and deceleration without impact, maintaining consistent winding tightness throughout the roll. The system effectively prevents wrinkling or stretching deformation, making it ideal for materials of varying thicknesses—from delicate films to heavy kraft paper.

Siemens PLC Intelligent Control System

A Siemens PLC intelligent control system integrates automatic length counting, alarms and stops for material depletion, preset-length automatic stops, and adjustable forward/reverse rotation. This fully automated management reduces manual intervention, simplifies operation, and boosts productivity for 24-hour non-stop production.

Automatic Meter Counting & Preset-Length Stop

The PLC tracks roll length with high accuracy and supports preset target lengths for automatic shutdown, enabling unattended production runs and reducing material waste from over-rolling.

Material Depletion Alarm & Auto Shutdown

Sensors detect residual material and trigger alarm shutdown when supplies run low, preventing dry runs and protecting the machine from damage. The system also supports reverse rewinding for defect correction and splicing operations.

High-Sensitivity Automatic Edge Guiding (EPC)

A high-sensitivity imported photoelectric automatic edge-guiding system corrects material deviation in real time. Even with uneven raw material edges, the SHFJ-C maintains high-speed, stable trimming and rewinding, ensuring neatly finished rolls and significantly improved product quality. Guiding precision reaches ±0.1 mm across the full speed range.

Optional Vision Inspection System for Streamlined Quality Control

The SHFJ-C supports the addition of a synchronized vision inspection system for edge trimming. This add-on automatically identifies and marks defects via computer, completing trimming and quality inspection simultaneously. It greatly enhances inspection efficiency and reduces labor costs for manufacturers requiring automated quality assurance.

SHFJ-C Shaftless Rewinder Technical Specifications

Two standard working widths are available to match common roll sizes. Both models share the same maximum operating speed (10–400 m/min), EPC precision (±0.1 mm), and maximum rewind diameter (800 mm). Custom working widths, roll diameters (up to 2500mm), and air shaft sizes (3–6 inch) are available upon request.

SHFJ-C 1100mm Model — Standard Width Configuration

Working width: 1100mm | Max unwind diameter: 1000mm | Max rewind diameter: 800mm | Speed: 10-400 m/min | EPC precision: ±0.1mm | Power: 25 kW | Weight: 3,000 kg. Ideal for medium-width paper and film roll rewinding with edge trimming.

SHFJ-C 1300mm Model — Wide Format Configuration

Working width: 1300mm | Max unwind diameter: 1000mm | Max rewind diameter: 800mm | Speed: 10-400 m/min | EPC precision: ±0.1mm | Power: 27 kW | Weight: 3,000 kg. Designed for wider rolls in high-volume packaging and converting operations.

Compatible Materials & Industry Applications

The SHFJ-C shaftless rewinder processes a wide range of rolled materials, making it suitable for paper product processing, printing and packaging, and flexible packaging production. Its strong compatibility and flexible customization options meet the processing demands of rolls in various specifications.

Paper Products Rewinding

Compatible with woodfree paper, straw paper, coated paper, white cardstock, kraft paper, PE-coated paper, and silicone-coated paper. The machine handles varying paper thicknesses with consistent tension control, producing tightly wound, defect-free rolls.

Aluminum Foil & Flexible Packaging Rewinding

Processes aluminum foil, PVC, and plastic film rolls for flexible packaging applications. The full-servo tension control prevents stretching and wrinkling of delicate materials, ensuring roll integrity for downstream lamination and printing.

Insulation Materials Rewinding

Suitable for insulation material rolls used in electrical and construction applications. The shaftless hydraulic structure accommodates heavy, large-diameter rolls with stable, vibration-free operation.

Why Choose Sanhui SHFJ-C Shaftless Rewinder

Sanhui Machinery brings years of expertise in roll converting and rewinding equipment. The SHFJ-C reflects our commitment to intelligent manufacturing, combining a robust dual shaftless hydraulic design with full-servo tension control, Siemens PLC automation, and ±0.1 mm EPC precision. Key advantages include: 4-in-1 integrated functionality (unwind, trim, inspect optional, rewind), hydraulic auto-unloading, customizable specifications (widths, diameters up to 2500mm, air shaft options), and optional AI vision inspection. Backed by comprehensive after-sales support and global export experience, the SHFJ-C is the ideal rewinding solution for enterprises seeking to maximize efficiency and product quality.

Frequently Asked Questions About SHFJ-C Shaftless Rewinder

What materials can the SHFJ-C shaftless rewinder process?

The SHFJ-C is compatible with a wide range of paper products (woodfree paper, straw paper, coated paper, white cardstock, kraft paper, PE-coated paper, silicone-coated paper) as well as aluminum foil, PVC, plastic films, and insulation materials.

What is the maximum rewinding speed of the SHFJ-C?

The maximum operating speed is 400 m/min, with an adjustable range of 10–400 m/min to suit different material types and processing requirements.

What roll diameters does the SHFJ-C support?

Standard maximum unwind diameter is 1000mm and maximum rewind diameter is 800mm. Custom options include 800mm, 1000mm, and 1200mm configurations, with large-diameter models supporting up to 2500mm.

Does the SHFJ-C support automatic edge guiding?

Yes. A high-sensitivity imported photoelectric EPC system corrects material deviation in real time with ±0.1 mm precision, ensuring neat finished rolls even with uneven raw material edges.

Can the SHFJ-C be equipped with vision inspection?

Yes. An optional synchronized vision inspection system automatically identifies and marks defects via computer, completing trimming and quality inspection simultaneously for streamlined quality control.

What working widths are available for the SHFJ-C?

Two standard widths are offered: 1100mm and 1300mm. Custom working widths and overall dimensions can be tailored to the customer's facility layout and production needs.