Unwind & Rewind System XN-FSJ300

Name: Unwind & Rewind System XN-FSJ300

Equipment Type: Automated Servo-Tension Unwind & Rewind System with Photoelectric Edge Correction for Roll-to-Roll Electrode Calendering and Film Handling

Product Code: XN-FSJ300

Product Introduction:

The Unwind & Rewind System XN-FSJ300 is an automated unwind-and-rewind device suitable for roll-to-roll rewinding and slitting of strip materials. The XN-FSJ300 has its own independent electrical control system implementing automatic unwind and rewind functions, and can be paired with a hydraulic roller press to enable lithium-ion battery cathode and anode electrode sheet calendering. The system can also be used for rewinding and slitting of optical films, functional films, and other roll-type materials. With servo automatic tension control, photoelectric edge correction, and a split-frame two-unit design, the XN-FSJ300 provides flexible integration with calendering, coating, or slitting equipment for continuous roll-to-roll processing.

Main Features:

• Servo automatic tension control — 0–30 N range on both unwind and rewind units
• Photoelectric automatic edge correction — on both unwind and rewind, providing excellent rewind alignment of ±0.5 mm
• 3-inch air-expanding shaft loading — quick and secure roll mounting on both unwind and rewind
• Self-contained independent electrical control system — operates standalone or paired with calendering/coating equipment
• Split-frame design — unwind and rewind are configured as two separate units, allowing flexible spacing for paired equipment
• Continuous running — at mechanical speeds up to 6 m/min
• Can be operated jointly with a hydraulic roller press — for inline electrode roll calendering

Technical Parameters:

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

Application Areas:

• Lithium-ion battery electrode roll calendering — when paired with a hydraulic roller press, the XN-FSJ300 enables inline unwind, calendering, and rewind of cathode and anode electrode rolls
• Optical film rewinding and slitting — roll-to-roll handling of optical thin films
• Functional film rewinding and slitting — roll-to-roll handling of specialty functional films
• General strip material rewinding — laboratory and pilot-scale rewinding of strip and sheet materials up to 350 mm wide
• Process development requiring controlled tension and edge alignment during winding

Recommended Operating Procedure:

1. Position the unwind unit and the rewind unit at the correct distance to feed the paired equipment (e.g., a hydraulic roller press). The split-frame design allows flexible spacing. 2. Connect both units to the power supply per local electrical standards (1 kW). 3. Power on both units and verify that the servo tension control, photoelectric edge correction, 3-inch air-expanding shafts, and independent electrical control systems on both units are all operating normally. 4. Mount the substrate roll on the 3-inch air-expanding shaft on the unwind unit (max. Φ250 mm). Thread the strip material through the guide rollers (up to 350 mm wide), through the paired equipment (e.g., the roller press nip), and onto the air-expanding shaft on the rewind unit. 5. Configure the servo tension setpoint on each unit (within 0–30 N) for stable transport. 6. Configure the photoelectric edge-correction sensors for both unwind and rewind to maintain target ±0.5 mm alignment. 7. Set the mechanical speed (within max 6 m/min). 8. Initiate continuous operation; the unwind unit feeds material at the configured tension while the rewind unit takes up the calendered or processed material. 9. Monitor tension, edge alignment, and roll diameter throughout the run. 10. After the run, remove the rewound roll, clean the guide rollers and shafts, and inspect the servo motors, photoelectric sensors, and air-expanding 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-FSJ300 ships as two separate units: an unwind unit (W410 × D790 × H530 mm, ~200 kg) and a rewind unit (W650 × D790 × H530 mm, ~237 kg). Each unit includes its 3-inch air-expanding shaft, servo motor with automatic tension control, photoelectric edge correction system, guide rollers, and independent electrical control panel. Install both units on a stable laboratory or pilot-scale production floor in a clean, dry environment, away from corrosive atmospheres and moisture. Connect each unit to a power supply matching local electrical standards (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 servo motors, photoelectric sensors, air-expanding shafts, tension-control system, and edge-correction 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 air-expanding 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 system. Keep loose clothing, hair, and jewelry away from the rotating shafts, guide rollers, and servo motors. 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, smoke, 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 equipment configuration, and operator technique — consult our technical team for guidance on specific unwind/rewind protocols. The XN-FSJ300 is a roll-handling platform designed to be paired with calendering, coating, or slitting equipment for continuous roll-to-roll processing. For researchers exploring complete lithium-ion battery electrode preparation workflows, see Xnergy’s calendering equipment lineup: the heated vertical CRPE series with 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; the heated horizontal HRPH series — XN-HRPH-100, XN-HRPH-150, XN-HRPH-200, and XN-HRPH-250; the ambient-temperature motorized vertical CRPE series — XN-CRPE-100, XN-CRPE-150, XN-CRPE-200, and XN-CRPE-250; and the motorized horizontal CRPE-W series — XN-CRPE-100W, XN-CRPE-150W, XN-CRPE-200W, and XN-CRPE-250W. For pilot-scale roll-to-roll coating equipment commonly paired with the XN-FSJ300, see the Comma-Blade Continuous Coating Machine XN-KD200, Laboratory Transfer Coating Machine XN-RTCA-300, Slot-Die Coating System XN-SDC, and the full Pilot-Scale Coating equipment category. For complete electrode preparation workflows, see also 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, Planetary Vacuum Mixer for Mixing Electrode Powders, and Three-Door Vacuum Drying Oven (XN-DVO-3). For complete electrode formulation systems, see also Cathode Materials, Anode Materials, Binders, and Current Collectors, plus the full Calendering equipment category, Coating equipment category, Drying equipment category, and Slitting & Die Cutting equipment category.