Compact Unwind & Rewind Mechanism XN-R2R-1

Name: Compact Unwind & Rewind Mechanism XN-R2R-1

Equipment Type: Compact Benchtop Unwind & Rewind Mechanism for Small Roller Press Companion Use (Open-Loop Torque Tension Control)

Product Code: XN-R2R-1

Product Introduction:

The Compact Unwind & Rewind Mechanism XN-R2R-1 is a benchtop-scale device for unwinding and rewinding strip materials. The XN-R2R-1 can be paired with a roller press to enable lithium-ion battery cathode and anode electrode sheet rolling, and is also suitable for unwinding and rewinding of optical films, functional films, and other roll-type materials. Compared to Xnergy’s larger XN-FSJ300 servo-tension unwind & rewind system, the XN-R2R-1 is significantly more compact and lightweight (32 kg total, 0.1 kW), with simplified open-loop constant-torque tension control instead of servo automatic tension, making it an ideal companion for benchtop laboratory roller presses where a small footprint and ease of operation are preferred over precision tension control.

Main Features:

• Split-frame design — unwind and rewind are configured as two separate units; can be paired with a benchtop roller press at flexible spacing
• Active rewind with open-loop constant-torque tension control — simple, reliable tension management for benchtop operation
• Adjustable rewind torque — tension setpoint up to 50 N, manually configurable
• 3-inch core compatibility — standard core size for laboratory roll handling
• Compact, lightweight footprint — total weight 32 kg, fits on standard laboratory benchtops
• Low power consumption — only 0.1 kW total, suitable for laboratory bench wiring

Technical Parameters:

Values measured by Xnergy. Typical values for reference; not guaranteed unless otherwise specified.

Application Areas:

• Benchtop lithium-ion battery electrode roll calendering — when paired with a laboratory roller press, the XN-R2R-1 enables roll-fed cathode and anode electrode rolling with continuous unwind and rewind
• Optical film rewinding — small-batch roll-to-roll handling of optical thin films
• Functional film rewinding — small-batch roll-to-roll handling of specialty functional films
• General strip material rewinding — laboratory rewinding of strip and sheet materials up to 200 mm wide
• Benchtop laboratory roll-handling where simplified torque-mode tension control is sufficient and a compact footprint is preferred

Recommended Operating Procedure:

1. Position the unwind unit and the rewind unit at the correct distance to feed the paired roller press. The split-frame design allows flexible spacing. 2. Connect the unit to the power supply per local electrical standards (0.1 kW total). 3. Power on the unit and verify the rewind motor, torque-control system, and 3-inch shafts are all operating normally. 4. Mount the substrate roll on the 3-inch shaft on the unwind unit (max. Φ200 mm). Thread the strip material through the guide rollers (up to 200 mm wide), through the paired roller press nip, and onto the 3-inch shaft on the rewind unit. 5. Configure the rewind torque setpoint to maintain target tension (max 50 N) for stable transport. 6. Set the mechanical speed (within max 1.5 m/min). 7. Initiate continuous operation; the unwind unit pays out material under tension while the rewind unit takes up the calendered material. 8. Monitor tension and roll diameter throughout the run. 9. After the run, remove the rewound roll, clean the guide rollers and shafts, and inspect the rewind motor and shafts periodically for wear or contamination.

Maintenance:

• Frequently wipe the machine with a soft cloth dampened with alcohol to keep it clean
• Lubricate moving parts with oil to keep movement smooth
• If the machine will not be used for an extended period, wipe down the surface of moving components and apply a protective rust-prevention oil
• Periodically inspect screws, nuts, pins, and other fasteners across all parts of the machine to prevent loosening, avoiding equipment-quality issues and personal-safety incidents

Packaging & Storage:

The XN-R2R-1 ships as two separate units: an unwind unit (W400 × D250 × H280 mm) and a rewind unit (W530 × D350 × H280 mm), with a combined weight of 32 kg. Each unit includes its 3-inch shaft, drive components, guide rollers, and electrical control. Install both units on a stable laboratory benchtop or workstation in a clean, dry environment, away from corrosive atmospheres and moisture. Connect the unit to a power supply matching local electrical standards (0.1 kW). Disconnect the power supply when the equipment is not in active use. After each use, clean the guide rollers, shafts, and frame; inspect the rewind motor, shafts, and torque-control system periodically for wear or contamination.

Safety:

For research and industrial laboratory use only. During operation, do not insert hands or any other body parts into the shafts, guide rollers, or any moving components to prevent personal injury. Operation by two or more persons simultaneously is not allowed to avoid accidental injury. External (third-party) technical personnel and unauthorized persons must not disassemble the equipment under any circumstances. Always wear appropriate PPE (safety glasses, lab coat, close-fitting sleeves) when operating the unwind & rewind mechanism. Keep loose clothing, hair, and jewelry away from the rotating shafts and guide rollers. When handling battery electrode rolls that may have absorbed solvent residues or contain reactive materials, wear chemical-resistant gloves and operate in a well-ventilated area. Stop operation immediately if any binding, unusual resistance, abnormal motor sound, or damage to the material is observed; inspect the machine before resuming operation. Disconnect the power supply before any cleaning, maintenance, or component replacement. Refer to the included user manual for complete safety and operating instructions.

Note: Specifications listed above are typical and for reference only. Actual performance depends on the specific roll material, roll diameter, roll weight, tension setpoint, paired roller-press configuration, and operator technique — consult our technical team for guidance on specific unwind/rewind protocols. The XN-R2R-1 is a compact benchtop roll-handling mechanism designed to be paired with a laboratory roller press for continuous strip-feeding. For higher-throughput, larger-roll, or pilot-scale applications requiring servo automatic tension control and photoelectric edge correction, see the larger Unwind & Rewind System XN-FSJ300 (0–30 N servo tension, ±0.5 mm alignment, Φ250 mm roll, 6 m/min, 1 kW). For researchers exploring complete lithium-ion battery electrode preparation workflows, see Xnergy’s laboratory calendering equipment lineup — the manual vertical CRP series: Manual Vertical Roller Press XN-CRP-100, XN-CRP-150, XN-CRP-200, and XN-CRP-250; the motorized vertical CRPE series: XN-CRPE-100, XN-CRPE-150, XN-CRPE-200, and XN-CRPE-250; the motorized horizontal CRPE-W series: XN-CRPE-100W, XN-CRPE-150W, XN-CRPE-200W, and XN-CRPE-250W; the heated horizontal HRPH series (up to 130 °C): XN-HRPH-100, XN-HRPH-150, XN-HRPH-200, and XN-HRPH-250; the heated vertical HRPE series (dual-zone independent heating up to 130 °C): Heated Vertical Roller Press XN-HRPE-100, XN-HRPE-150, XN-HRPE-200, and XN-HRPE-250; and the dual-servo differential-speed heated platform XN-HRPE200-W (up to 150 °C with asynchronous top/bottom rollers). For pilot-scale roller presses, see Hydraulic-Balance Motorized Roller Press XN-HPRP-300 (50T, ambient) and Heated Hydraulic-Balance Roller Press XN-SHPRP-300 (50T, heated to 130 °C). For researchers exploring complete lithium-ion battery electrode preparation workflows, see also Xnergy’s related products: Automatic Film Coater XN-VC-300, Automatic Film Coater XN-VC-800, Glove-Box-Compatible Film Coating & Drying Machine XN-VCH-200, Automatic Film Coater with Integrated Drying System XN-VCH-300, Slot-Die Coating System XN-SDC, Laboratory Transfer Coating Machine XN-RTCA-300, Comma-Blade Continuous Coating Machine XN-KD200, Planetary Vacuum Mixer for Mixing Electrode Powders, and Three-Door Vacuum Drying Oven (XN-DVO-3), plus the full Calendering equipment category, Pilot-Scale Calendering equipment category, Coating equipment category, Pilot-Scale Coating equipment category, Drying equipment category, and Slitting & Die Cutting equipment category. For complete electrode formulation systems, see also Cathode Materials, Anode Materials, Binders, and Current Collectors.