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High-Speed Automatic Unwinding Machine for Film & Foil
Product Overview
This customizable unwinding machine (pay-off stand) is designed for the controlled, continuous release of roll materials such as film, foil, paper, non-woven fabric, battery electrode, or wire to downstream processes including coating, printing, laminating, and slitting. Available in high-speed web, heavy-duty coil, and compact benchtop configurations.
The system is fully customizable in web width, roll diameter, tension range, core size, and automation level. Precise tension control prevents material stretching, wrinkling, or breakage during unwinding. Active (servo-driven) or passive (brake-controlled) pay-off modes are selectable depending on process requirements. The machine can operate standalone or be synchronized with upstream/downstream equipment via PLC or relay interfaces.
Working Principle: The roll material is mounted on the unwinding shaft. The tension control system (magnetic powder brake or servo motor) applies adjustable resistance to maintain constant web tension. For active unwinders, a motor drives the shaft to actively feed material, synchronized with line speed via PID control. The web guide system ensures lateral alignment, and the dancer roller absorbs tension fluctuations for smooth unwinding.
Technical Specifications
Parameter
High-Speed Web Model
Heavy-Duty Coil Model
Compact Benchtop Model
Max web width (customizable)
Up to 1300 mm
400 - 1600 mm
200 - 350 mm
Max roll diameter (customizable)
Up to 800 mm
Up to 1000+ mm
Up to 250 mm
Core diameter (customizable)
3″ / 6″ / Custom
3″ / 6″ / Custom
3″ (76 mm)
Pay-off mode (customizable)
Active (servo) / Passive
Active (servo) / Passive
Passive (brake) / Active
Tension control type
Closed-loop PID
Closed-loop / Open-loop
Open-loop / Manual
Tension range (customizable)
0 - 200 N
0 - 500 N
0 - 50 N
Max line speed (customizable)
200 - 500 m/min
100 - 300 m/min
1.5 - 6 m/min
Web guide accuracy
±0.5 mm
±1 mm
±0.5 mm
Drive motor
Servo motor + inverter
AC motor + inverter
Stepper / Small servo
Loading method
Pneumatic / Hydraulic
Hydraulic lift
Manual
Control system
PLC + HMI touchscreen
PLC + HMI
Digital controller / PLC
Power supply
380V, 50/60Hz, 3-phase
380V, 50/60Hz, 3-phase
220VAC±10% (110V customizable)
Typical application
Film, paper, foil, label stock
Steel coils, cables, heavy webs
Battery electrode, optics, R&D
Applications
Battery industry: Lithium-ion battery electrode unwinding for coating/calendering
Printing & packaging: Paper, film, label stock for printing and laminating lines
Optical films: Functional film unwinding for coating and slitting
Textile & non-woven: Fabric roll unwinding for finishing or lamination
Wires & cables: Copper/aluminum wire pay-off for extrusion lines
Flexible electronics: Roll-to-roll processing of flexible circuits and substrates
Customization Options
This unwinding machine is highly customizable to meet your specific production requirements:
Web width & roll diameter: Customizable from 200mm to 1600mm+ width; roll diameter up to 800mm+
Core size: 3″ (76mm), 6″ (152mm), or custom core adapters
Pay-off mode: Passive (magnetic brake controlled) or Active (servo motor driven) - customizable
Tension control: Open-loop (torque control) or Closed-loop (PID with dancer/load cell) - customizable
Tension range: 0-50N up to 0-500N - customizable based on material type
Loading method: Manual, pneumatic lift, or hydraulic lift - customizable
Web guide: Manual edge guide or automatic web guide with sensor - customizable
Number of stations: Single-station or dual-station for non-stop splicing (optional)
Control interface: Standalone panel or integrated with parent machine PLC - customizable
Voltage: Standard 220V/380V, 50/60Hz, 3-phase - customizable to local requirements
Frame finish: Custom RAL color and anti-corrosion coating
Key Features
Precise tension regulation: Closed-loop PID control ensures constant tension and minimal material deformation
Active or passive pay-off: Flexible configuration for different material types and processes
Automatic web guide: Real-time lateral correction ensures precise alignment to downstream equipment
Synchronization capability: PLC or relay interface allows synchronization with upstream/downstream machines
Easy roll loading: Pneumatic/hydraulic lift or manual quick-change chuck reduces downtime
Dancer roller system: Absorbs tension spikes and ensures smooth web travel
Compact footprint: Benchtop designs save lab/production floor space
Low maintenance: Sealed bearings and robust steel frame for 24/7 operation
Standard model lead time: 15-25 days after order confirmation
Custom configuration lead time: 30-45 days (longer for custom widths or dual-station designs)
Shipping: FOB Shanghai / CIF by sea, air, or rail
Customizable: Export crating, custom labeling, destination port documentation
Frequently Asked Questions
Q1: What is the difference between active and passive pay-off?
A:Passive pay-off uses a brake (magnetic powder brake or mechanical brake) to create resistance as the downstream machine pulls the web - simpler and lower cost. Active pay-off uses a motor to drive the shaft, pushing material forward and is better for heavy rolls or when precise tension is critical. Both modes are customizable.
Q2: Can this unwinder be integrated with my existing production line (coating/printing machine)?
A: Yes. The system supports PLC or relay interfacing for speed synchronization. We can customize the control interface to match your parent machine's communication protocol.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
2000000-3000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Dongguan OSMANUV Machinery Equipment Co., Ltd. was established in 2007 and is headquartered in Dongguan, Guangdong Province, a renowned manufacturing hub within the Guangdong-Hong Kong-Macao Greater Bay Area. We are a high-tech enterprise integrating R&D, production, sales, and af... Dongguan OSMANUV Machinery Equipment Co., Ltd. was established in 2007 and is headquartered in Dongguan, Guangdong Province, a renowned manufacturing hub within the Guangdong-Hong Kong-Macao Greater Bay Area. We are a high-tech enterprise integrating R&D, production, sales, and af...
