SHLB-C Aluminum Foil Slitter

1. 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 (custom parameters available). The hydraulic unwinding unit runs more 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.

2. Rewinding System: Differential Shaft Rewinding (Quality Assurance)

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 (tight core & loose outer layer) 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.

II. Overall Core Structure & Performance
1. 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 ±0.05 mm, meeting micron-level processing requirements for lithium battery foil, pharmaceutical foil and other materials.
2. 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.
3. 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.
4. Environmental & 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.
III. Summary of 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.

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

IV. Application Fields

New Energy Industry: Slitting of lithium battery aluminum foil and current collectors for power batteries.

Packaging Industry: Household food aluminum foil, cigarette packaging aluminum foil and composite flexible packaging aluminum foil.

Pharmaceutical Industry: Pharmaceutical PTP aluminum foil and drug packaging aluminum foil.

Electronics Industry: Capacitor aluminum foil and electromagnetic shielding aluminum foil.

Specifications showing only the width of the specific section: