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Product Overview

• Function: Unwinding at the front end of the strip processing line to achieve stable unwinding, high-precision tension control, and smooth feeding, with seamless integration to downstream equipment (e.g., cutting, coating, straightening, etc.).

• Applicable Materials: Steel, aluminum, and other metal strips, widely used in automotive, home appliances, packaging, and furnishings.

• Basic Structure: Reels/unwinding drum, tension sensing with closed-loop control, clamping/unwinding mechanisms, drive unit, protective cover and safety interlocks, control cabinet and HMI.

Applicable Range

• Coil diameter range (inner/outer options): commonly Ø450–Ø1500 mm (model-dependent)

• Coil width: about 80–2000 mm (depends on model)

• Thickness range: about 0.2–6.0 mm

• Maximum tension and line speed: varies by model; typical range 0–tens of kN for tension and up to about 150 m/min for line speed

• Material compatibility: steels, magnesium alloys, aluminum and other metals

Key Features and Benefits

• Stable tension closed-loop control: ensures flat, uniform tension during unwinding and reduces coil deformation

• High-speed, smooth feeding: increases line speed and reduces downtime caused by feeding instability

• Wide applicability: supports a range of coil diameters, widths, thicknesses, and materials

• Automation and intelligence: servo drive, tension sensing, data collection, remote diagnostics, predictive maintenance

• Safety and user-friendliness: emergency stop, overload protection, anti-pinch features, and an easy-to-use HMI

• Seamless integration with downstream processes: easy interfacing with cutting, coating, straightening, and other equipment to boost line throughput

• Low maintenance, modular design: easy-to-replace consumables with standardized modules for expansion

• Energy efficiency and cost benefits: servo-driven/inverter-driven design enhances efficiency and reduces long-term operating costs

Structural Composition

• Unwinder/reel and clamping mechanism: secure fixation and unwinding of the material

• Tension sensing and control system: tension sensor, servo drive, closed-loop control unit

• Drive and drive unit: servo motor or AC variable-frequency drive, matched to speed and tension requirements

• Frame and support structure: sturdy chassis, guides, center-alignment mechanism

• Safety protection and HMI: protective cover, interlocks, touch-screen HMI, emergency stop button

• Control cabinet and electrical system: fuses/disconnects, terminal blocks, cable management, grounding

Control System and Software

• Basic control: PLC + touch HMI

• Motion control: servo drive implementing closed-loop tension and unwinding speed

• Data and diagnostics: tension curve recording, equipment status monitoring, fault self-diagnosis, remote diagnostics option

• Optional extensions: interfaces with upstream/downstream equipment (SCADA, MES, cloud diagnostics), predictive maintenance algorithms

Installation and Commissioning

• Installation site requirements: level floor, adequate space, compliant with safety protections

• Commissioning: mechanical alignment, tension parameter calibration, system self-test, interface with downstream equipment

• Acceptance and Training: provide factory test reports, on-site training to ensure operators can operate independently

Maintenance and Servicing

• Routine maintenance: mechanical lubrication, tension sensor calibration, interlocks and safety system checks

• Wear parts: replacement cycles depend on usage; provide wear-part lists and replacement procedures

• Spare parts and service: OEM spare parts, remote/onsite service options during the warranty period

Common Application Scenarios

• Unwinding of thin metal sheets for automotive manufacturing and parts processing

• Front-end processing lines for appliance housings, metal packaging materials

• Front-end unwinding for downstream processes such as metal coating, straightening, punching

Quotation and Customization

• Please provide: material type to be processed, coil width/thickness range, target line speed, coil diameter range, required safety and control level, region

• We will provide specific models, parameters, lead times, and quotations based on this information

If you’d like, I can expand this into a formal product specification sheet with tabulated technical parameters, bill of materials, option lists, and a quotation template, or tailor a version more closely to your model and industry scenario. If you need, tell me the specific model, material range, target industry, and language version.