SHLB-C Aluminum Foil Slitter | Hydraulic Shaftless Heavy-Duty Metal Foil Precision Slitting and Rewinding Machine

The SHLB-C Aluminum Foil Slitter is designed for aluminum and copper foil precision slitting. It combines hydraulic shaftless unwinding (50% faster roll change), differential speed shaft rewinding with independent tension control, and cemented carbide shear knives achieving /-0.05mm burr-free slitting tolerance. Equipped with CCD and ultrasonic dual web guiding, PLC touch screen control, industrial dust collector and CE-compliant safety guards. Max speed 600 m/min. Compatible with double-zero foil, lithium battery current collector foil, pharmaceutical PTP foil, household foil and capacitor shielding foil across four width models from 1100mm to 1800mm.

Unwinding System: Shaftless Hydraulic Loading

Efficient Loading

Adopting hydraulic shaftless unwinding instead of cumbersome clamping with traditional air expansion shafts. The hydraulically driven expansion mechanism directly fits large-diameter aluminum foil rolls, cutting loading time by 50%. It enables single-person fast operation and greatly improves production line preparation efficiency.

High Load Stability

Specially designed for heavy-weight and large-diameter aluminum foil rolls. The hydraulic unwinding unit runs smoothly, completely preventing material deviation caused by equipment vibration and ensuring continuous and steady material feeding.

Precision Tension Control

Equipped with pneumatic brakes and an intelligent closed-loop tension system, it realizes accurate tension adjustment from high to low speed. It delivers stable conveying for ultra-thin double-zero aluminum foil and heavy-gauge aluminum foil, eliminating stretching, wrinkling and fluttering during unwinding.

Rewinding System: Differential Shaft Rewinding

Constant Tension Synchronous Rewinding

Adopting differential speed shafts as the core component, tension of each rewinding station can be adjusted independently. When multiple rolls are rewound simultaneously after multi-knife slitting, uniform tension and consistent tightness of all rolls are guaranteed, thoroughly solving common problems such as uneven tightness and roll collapse.

Wide Compatibility

The differential shaft features excellent elastic cushioning performance, suitable for rewinding materials of different widths and types, including pure aluminum foil and composite aluminum foil. It effectively protects roll edges and ensures neat, warp-free edges of finished rolls after slitting.

Convenient Roll Change

Combined with pneumatic press rollers and automatic cutting device, roll change is accurate and efficient. No manual trimming of material ends is required after roll replacement, enabling seamless transition to the next process.

Core Structure and Performance

High-Precision Slitting Mechanism

Constructed with cemented carbide circular knives and shear-type knife holders, featuring long service life and burr-free slitting. The knife position is adjusted via precision lead screws and digital regulating mechanism, with slitting width accuracy up to /-0.05mm, meeting micron-level processing requirements for lithium battery foil, pharmaceutical foil and other materials.

Intelligent Web Guiding System

Fitted with high-precision CCD and ultrasonic web guiding devices to track material edges in real time and automatically correct running tracks. It maintains accurate slitting positions even at high operating speeds and avoids edge material waste.

Intelligent Control System

Equipped with industrial PLC and touch screen HMI for intuitive and easy operation. Multiple sets of production process parameters can be stored and recalled with one click. The machine is integrated with self-diagnosis and emergency stop safety protection functions, supporting 24-hour continuous production.

Environmental and Safety Design

Standard equipped with industrial dust collectors to collect aluminum powder generated during slitting and keep the workshop clean. The whole machine is fitted with fully or semi-enclosed safety guards, complying with CE and other international safety standards to protect operators.

Technical Specifications

Application Fields

New Energy Industry

Slitting of lithium battery aluminum foil and current collectors for power batteries. The /-0.05mm slitting precision and burr-free edges meet the stringent requirements of battery manufacturing for consistent electrode foil quality.

Packaging Industry

Household food aluminum foil, cigarette packaging aluminum foil and composite flexible packaging aluminum foil. The differential shaft rewinding ensures uniform roll tightness for downstream packaging processes.

Pharmaceutical Industry

Pharmaceutical PTP aluminum foil and drug packaging aluminum foil. The constant-tension control and CCD web guiding deliver the edge quality and dimensional accuracy required for pharmaceutical blister packaging.

Electronics Industry

Capacitor aluminum foil and electromagnetic shielding aluminum foil. The high-speed operation at 600 m/min with precision slitting supports high-volume electronics component manufacturing.

Core Advantages

Ultra-High Efficiency

The combination of shaftless hydraulic loading and differential shaft rewinding realizes fast loading, stable rewinding and zero loss during roll change, minimizing non-production downtime.

Superior Precision

It performs excellently in slitting ultra-thin and extra-wide aluminum foil, with industry-leading smoothness and finish of finished roll edges at /-0.05mm tolerance.

Wide Application

Compatible with full ranges of aluminum foil including double-zero foil, single-zero foil, household aluminum foil, lithium battery aluminum foil, pharmaceutical aluminum foil, and copper foil.

Durable Performance

The frame is welded with thickened steel plates, core transmission parts are precision-manufactured, and imported electrical components are adopted. The equipment features low failure rate and stable long-term operation.

Frequently Asked Questions

What is the maximum slitting speed of the SHLB-C aluminum foil slitter?

The SHLB-C achieves a maximum operating speed of 600 m/min, making it one of the fastest aluminum foil slitters in its class. It maintains slitting precision of /-0.05mm even at high speeds, suitable for high-volume continuous production.

What slitting precision does the SHLB-C achieve?

The SHLB-C uses cemented carbide circular knives with shear-type holders and precision lead screw adjustment, achieving slitting width accuracy of /-0.05mm with burr-free edges. This meets the micron-level processing requirements for lithium battery foil, pharmaceutical foil and other precision applications.

What types of aluminum foil can the SHLB-C process?

The SHLB-C is compatible with double-zero foil, single-zero foil, household aluminum foil, lithium battery aluminum foil, pharmaceutical PTP aluminum foil, capacitor shielding foil, and copper foil. It handles both pure aluminum foil and composite aluminum foil materials.

How does the hydraulic shaftless unwinding system work?

The hydraulic shaftless unwinding uses a hydraulically driven expansion mechanism that directly fits large-diameter aluminum foil rolls without traditional air expansion shafts. This cuts loading time by 50%, enables single-person operation, and provides smooth material feeding without vibration-induced deviation.

What is the differential shaft rewinding system?

The differential speed shaft allows each rewinding station to have independently adjusted tension. When multiple rolls are rewound simultaneously after multi-knife slitting, uniform tension and consistent tightness are guaranteed, solving common problems like uneven tightness and roll collapse.

What working widths are available for the SHLB-C?

The SHLB-C is available in four standard working widths: 1100mm (SHGS-FT1100), 1300mm (SHGS-FT1300), 1600mm (SHGS-FT1600), and 1800mm (SHGS-FT1800). Maximum unwinding diameter is 1500mm and rewinding diameter is 600/800mm. Custom widths are available on request.