Recoiling Lines

Gerd Wolff Recoiling Lines are engineered for the controlled and high-precision rewinding of metal strips into compact, uniform, and dimensionally stable coils. Designed for demanding coil-processing applications, our systems provide precise strip tension control, stable material guidance, consistent winding quality, and reliable coil handling throughout the production process.

Recoiling Lines can be integrated downstream of slitting, leveling, cut-to-length, rolling, coating, or other strip-processing equipment. The line configuration is customized according to material characteristics, strip width, thickness, coil weight, required winding tension, line speed, and finished coil dimensions.

Our engineering approach combines robust mechanical construction, high-performance drives, precision instrumentation, and advanced automation to achieve reliable and repeatable recoiling performance.

Precision Recoiling Technology

Controlled winding tension is one of the most important factors in producing high-quality finished coils. Gerd Wolff Recoiling Lines are designed to maintain stable and adjustable strip tension throughout the winding process.

The system can incorporate tension stands, pinch rolls, guiding systems, separator equipment, hydraulic or pneumatic components, and high-performance recoiler drives to ensure consistent coil build-up.

Precise synchronization between line speed, recoiler torque, strip tension, and coil diameter helps prevent loose winding, telescoping, strip deformation, and irregular coil edges.

The recoiler can be configured for different coil dimensions and material requirements, providing flexible production capability for a wide range of metal strip applications.

Integrated Industrial Manufacturing Process Solutions

Gerd Wolff Recoiling Lines are designed as integrated production systems in which mechanical equipment, electrical systems, drives, hydraulic systems, instrumentation, and automation operate as one coordinated platform.

The automation system continuously coordinates strip feeding, guiding, tension control, recoiling speed, torque, coil diameter, and unloading operations.

PLC-based control and HMI systems provide operators with direct access to production parameters, coil recipes, machine status, alarm diagnostics, and process information.

Advanced control functions allow the recoiling process to automatically adapt to changing coil diameter and operating conditions, supporting stable winding quality throughout the complete production cycle.

Recoiling Process

Coil Entry & Strip Feeding

The material enters the recoiling section through controlled feeding and guiding equipment. Strip alignment is continuously maintained to ensure accurate positioning before the winding process.

Strip Guiding & Alignment

Precision guiding systems maintain the correct lateral position of the strip during operation. Stable strip tracking helps produce uniform coil edges and minimizes the risk of telescoping or uneven winding.

Tension Control

The strip passes through a controlled tensioning section where the required winding tension is established. The tension system can be configured according to material grade, thickness, width, surface quality, and finished coil requirements.

Stable tension throughout the process is essential for producing tightly and uniformly wound coils.

Recoiling

The recoiler winds the processed strip onto an expanding mandrel under controlled speed and torque.

The control system continuously synchronizes recoiler speed with the incoming strip speed while maintaining the required winding tension. This provides stable coil build-up and consistent winding density.

Coil Stabilization

Depending on the application, pressure rolls, hold-down systems, separators, or other coil stabilization equipment can be integrated to maintain the correct coil geometry during winding.

Coil Unloading

Once the programmed coil dimensions or production quantity are reached, the finished coil is safely transferred to the unloading section.

Coil cars, hydraulic push-off systems, turnstiles, downlayers, and other handling equipment can be integrated according to the production layout and customer requirements.

Engineering for Performance and Reliability

Every Gerd Wolff Recoiling Line is engineered around the customer’s specific production requirements.

Key design parameters include:

• Material grade and mechanical properties

• Strip thickness

• Strip width

• Maximum coil weight

• Incoming coil dimensions

• Finished coil dimensions

• Required winding tension

• Line speed

• Recoiler torque

• Coil inner and outer diameter

• Surface quality requirements

• Coil handling requirements

• Automation and process-control requirements

This engineering-driven approach allows each recoiling system to be optimized for the specific material, production process, and finished coil requirements.

Key Features

• High-precision recoiling

• Automatic winding tension control

• Stable strip guiding and alignment

• High-performance recoiler drives

• Adjustable recoiling torque

• Hydraulic or pneumatic mandrel expansion

• Precision coil build-up control

• Telescoping prevention

• Uniform coil edge alignment

• Pressure roll and hold-down systems

• Separator and strip guiding systems

• Automatic coil unloading

• PLC-based line automation

• HMI and recipe management

• Real-time alarm and diagnostic monitoring

• Integrated safety and interlock systems

• Production data acquisition and monitoring

• Customized coil handling solutions

Flexible Recoiling Configurations

Gerd Wolff Recoiling Lines can be configured according to the upstream process and required production concept.

Stand-Alone Recoiling Line

A dedicated recoiling system for converting processed strip into finished coils with controlled winding tension and consistent coil geometry.

Slitting Line Recoiler

Integrated downstream of a slitting machine to simultaneously recoil multiple slit strips into individual finished coils. Precise tension distribution is essential for producing tightly wound and uniformly aligned slit coils.

Process Line Recoiler

Recoiling equipment can also be integrated into leveling, rolling, coating, pickling, and other continuous strip-processing lines to provide controlled exit-coil formation.

Precision Recoiling for Sensitive Materials

Special configurations can be implemented for materials where surface protection and marking prevention are critical. Non-marking tensioning and winding solutions can be selected according to the material and surface requirements.

Automation & Process Control

Automation plays a critical role in maintaining stable recoiling performance.

Gerd Wolff control systems can monitor and coordinate:

• Line speed

• Recoiler speed

• Strip tension

• Recoiler torque

• Coil diameter

• Mandrel position

• Strip position

• Hydraulic pressure

• Pneumatic pressure

• Coil length

• Production quantity

• Equipment status

• Alarm and diagnostic information

Closed-loop control allows the system to continuously adjust recoiler operation according to changing coil diameter and process conditions.

The result is consistent winding tension, stable coil geometry, reduced operator intervention, and improved production efficiency.

Complete System Integration

From mechanical engineering and manufacturing to electrical design, automation, commissioning, and after-sales service, Gerd Wolff provides complete engineering solutions for recoiling applications.

Our Recoiling Lines can be integrated with upstream and downstream coil-processing equipment to create a fully automated production system.

Whether used as a stand-alone recoiler or as part of a complete Slitting, Rolling, Leveling, Coating, or Coil Processing Line, Gerd Wolff systems are designed to deliver precise winding control, high productivity, reliable operation, and long-term industrial performance.