Comma-Blade Continuous Coating Machine XN-KD200

Name: Comma-Blade Continuous Coating Machine XN-KD200

Equipment Type: Pilot-Scale Comma-Blade Continuous Coating Machine with Dual-Layer Hot-Air Drying Oven, Automatic Tension Control & Photoelectric Edge Correction for Battery Electrode R&D

Product Code: XN-KD200

Product Introduction:

The Comma-Blade Continuous Coating Machine XN-KD200 is a comma-blade continuous coating machine designed for surface coating of various substrates, with particular emphasis on the lithium-ion battery industry. The XN-KD200 is engineered to deliver coating precision and consistency comparable to production-line equipment while remaining convenient for laboratory researchers. As a result, the XN-KD200 is an ideal choice for R&D and small-batch pilot trials in lithium-ion batteries, supercapacitors, nickel batteries, and other secondary batteries.

Compatible Battery Chemistries:

The XN-KD200 supports cathode and anode coating processes for: NCM (ternary), LFP (lithium iron phosphate), LCO (lithium cobalt oxide), LMO (lithium manganese oxide), graphite, silicon-carbon (Si-C), and other battery electrode chemistries.

Main Features:

• Comma-blade metering with precision adjustment mechanism — high coating accuracy (±3 μm), dual-side comma blade configuration
• Substrate tension control — automatic constant-tension control with stable web transport
• Photoelectric edge correction — installed at oven exit for accurate rewind alignment
• Dual-layer hot-air circulation drying oven — upper and lower air blowing, dual-layer independent heating arranged top and bottom, SUS304 stainless-steel construction
• Analog-signal-controlled power heating — high-precision heating with long service life, ±0.5 °C temperature control accuracy
• PLC control with touchscreen operation — convenient parameter setting, equipment fault alarms with correction guidance
• Optional solvent recovery and treatment module — for environmentally friendly operation with NMP or other regulated solvents
• Production-line-comparable coating quality at laboratory scale

Main Specifications:

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

Drying Oven (Hot-Air Circulation):

Unwind / Rewind Mechanism:

Hardware Precision:

Application Areas:

• Lithium-ion battery electrode R&D — comma-blade continuous coating for cathode and anode formulations (NCM, LFP, LCO, LMO, graphite, Si-C)
• Supercapacitor electrode coating — continuous coating for double-layer and hybrid supercapacitor electrodes
• Nickel battery electrode coating — NiCd, NiMH, and similar nickel-based battery chemistries
• Other secondary battery R&D and small-batch pilot trials — solid-state batteries, sodium-ion batteries, and emerging chemistries
• Process development and material screening for new battery chemistries
• Research institutions, universities, and corporate R&D centers requiring production-line-comparable coating quality at laboratory scale

Installation Environment Requirements:

• Machine head ambient temperature: 25–30 °C; remainder of equipment: 10–40 °C
• Machine head relative humidity: RH ≤ 35% (when coating cathode); RH ≤ 98% (when coating anode); remainder: ≤ 98%
• Power supply: Configurable according to local electrical standards; total startup power 6 kW
• Compressed air: > 5.0 kg/cm² (after drying, filtration, and pressure stabilization)

Recommended Operating Procedure:

1. Install the XN-KD200 on a stable laboratory or pilot-scale production floor meeting the installation environment requirements; caster wheels with leveling feet allow positioning. Connect the equipment to a power supply matching local electrical standards (6 kW total startup) and to the compressed air supply (> 5.0 kg/cm², dried/filtered/regulated). 2. Power on the unit and verify that the PLC + touchscreen, comma-blade station, dual-layer hot-air drying oven, photoelectric edge correction, automatic tension control, unwind/rewind air-expanding shafts, and analog-signal-controlled heating system are all operating normally. 3. Mount the substrate roll (aluminum foil 8–30 μm or copper foil 6–30 μm) onto the unwind 3-inch air-expanding shaft (max. Φ250 mm, max. 50 kg load). Thread the substrate through the comma-blade coating station, the dual-layer hot-air drying oven, the photoelectric edge correction at the oven exit, and onto the rewind 3-inch air-expanding shaft. 4. Configure the automatic tension control on the touchscreen for stable substrate transport. 5. Set the target comma-blade gap using the precision adjustment mechanism to achieve the desired wet film thickness (resulting in dry film thickness 20–200 μm with ±3 μm accuracy). 6. Set the target coating speed (within 0–0.5 m/min) on the touchscreen. 7. Set the target temperature for each independent oven section on the touchscreen (within ambient–150 °C, ±0.5 °C accuracy, ≤ ±2.5 °C single-section uniformity). Allow the heating system to stabilize before starting the run. 8. Verify the slurry viscosity (target 2000–12000 mPa·s) and solid content (target 20–85%) match the equipment specifications. 9. Load the coating slurry, then initiate the run; the substrate advances through the comma-blade station, dual-layer hot-air oven, edge correction system, and onto the rewind. 10. Monitor coating thickness, dimensional accuracy, edge correction, and tension during the run; the system displays alarm screens on the touchscreen if equipment faults occur, with corresponding correction guidance. 11. After the run, allow the heating system to cool, then remove the rewound roll. Clean all wetted surfaces with appropriate solvent (water or NMP, depending on the slurry system used) and dry thoroughly before the next run.

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
• Periodically inspect the comma blade and coating roller surfaces for wear, contamination, or signs of degradation; the hardware precision specifications (Ra 0.4 surface finish, ≤ ±1.5 μm roundness and straightness) must be maintained for consistent coating accuracy
• Periodically clean the oven nozzles and inspect the SUS304 oven for residue buildup that could affect drying uniformity

Optional Solvent Recovery System:

The XN-KD200 supports an optional solvent recovery and treatment module for environmentally friendly operation. The module captures and processes evaporated solvent (such as NMP) from the drying oven exhaust, supporting compliance with local environmental regulations on VOC discharge. Contact our team for solvent recovery configuration options matched to your specific slurry chemistry and recovery throughput requirements.

Packaging & Storage:

The XN-KD200 ships fully assembled with the comma-blade coating station, hard-chrome-plated coating roller, dual-layer SUS304 hot-air drying oven, automatic constant-tension control, photoelectric edge correction, 3-inch air-expanding shafts (unwind and rewind), PLC + touchscreen control panel, and steel frame on caster wheels with leveling feet (L1700 × W900 × H1100 mm, 570 kg net, 700 kg gross). Optional solvent recovery and treatment module ships separately if ordered. Install on a stable laboratory or pilot-scale production floor in a clean, dry environment with the specified ambient temperature and humidity. Connect the equipment to a compressed air supply (> 5.0 kg/cm²) and to a power supply matching local electrical standards. Disconnect the power supply when the equipment is not in active use. After each use, clean all wetted-surface components, dry thoroughly, and store the equipment in a clean, dry environment.

Safety:

For research and industrial laboratory use only. During operation, do not insert hands or any other body parts into the comma-blade station, rotating air-expanding shafts, idler rollers, hot-air drying oven, or any other moving or hazardous working areas 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. Do not touch the heated drying oven, coated substrate, or hot-air ducts during operation — surface temperatures up to 150 °C can cause severe burns. Always wear appropriate PPE (safety glasses, chemical-resistant gloves, lab coat, safety shoes) when handling slurries, solvents, and coated electrodes. When working with NMP-based slurries or other regulated solvents, ensure adequate ventilation, install the optional solvent recovery and treatment module if available, and follow local regulations on solvent use, recovery, and emission — NMP and similar aprotic solvents have specific exposure limits under OSHA, EU REACH, and other regional safety frameworks. Disconnect the power supply and isolate the compressed air supply before any cleaning, maintenance, or component replacement. Allow the heating system to cool to room temperature before any cleaning or sample-handling operations. 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 slurry chemistry, viscosity, coating thickness, drying temperature setpoints, drying length, substrate type, and ambient operating conditions — consult published literature and our technical team for guidance on specific comma-blade continuous coating-and-drying protocols. For researchers requiring smaller laboratory-scale roll-to-roll coating, see the Continuous Roll-to-Roll Coating Machine XN-LVC-200. For researchers requiring transfer coating, see the Laboratory Transfer Coating Machine XN-RTCA-300 (three-roll transfer coating) and Segmented Transfer Coating Machine XN-RTCA-300-3 (pilot-scale segmented transfer coating). For slot-die coating, see the Slot-Die Coating System XN-SDC, Slot-Die Extrusion Film Applicator XN-FAS-100, and Extrusion Feeding Pump XN-EFP. For benchtop laboratory film coating (non-roll-to-roll), see the Automatic Film Coater XN-VC-300 (300 mm stroke), Automatic Film Coater XN-VC-800 (800 mm stroke), Glove-Box-Compatible Film Coating & Drying Machine XN-VCH-200, Automatic Film Coater with Integrated Drying System XN-VCH-300, Automatic Film Coating & Drying Machine Plus XN-VCH-800, Bottom-Heated Film Coating Machine XN-VCHB, and Adjustable Film Applicator XN-FAT-100. For NMP solvent recovery and treatment, see the Three-Stage NMP Processor XN-NMP-3. For complete electrode preparation workflows, see also Xnergy’s related products: Planetary Vacuum Mixer for Mixing Electrode Powders, Three-Door Vacuum Drying Oven (XN-DVO-3); for downstream calendering, see the laboratory CRP / CRPE / CRPE-W / HRPE / HRPH series and pilot-scale Hydraulic-Balance Motorized Roller Press XN-HPRP-300 & Heated Hydraulic-Balance Roller Press XN-SHPRP-300; for roll-to-roll calendering, pair with the Unwind & Rewind System XN-FSJ300. For full equipment categories, see the Coating equipment category, Pilot-Scale Coating equipment category, Drying equipment category, Calendering equipment category, Pilot-Scale Calendering equipment category, Slitting & Die Cutting equipment category, and NMP Solvent Recovery equipment category. For complete electrode formulation systems, see also Cathode Materials, Anode Materials, Binders, and Current Collectors.