Products Description
This intermittent coating and roller pressing machine is a versatile three-roller transfer coating system designed for both continuous and intermittent coating applications, followed by high-precision rolling. It is specifically engineered for the surface coating and rolling processes of various substrates, offering researchers a user-friendly solution that ensures exceptional coating accuracy and consistency, aligning with industrial production standards. With its superior drying performance, this equipment serves as an ideal tool for the research and development of advanced energy storage technologies, including lithium-ion batteries, supercapacitors, nickel-based batteries, and other secondary battery systems.
Technical Parameters
| Main features | |
| No. | Features |
| 1 | It can switch freely to realize continuous and intermittent coating. |
| 2 | Base material tension control, stable belt running, equipped with rectifying device. |
| 3 | Hot air oven, up and down double-sided blowing, high quality drying effect. |
| 4 | Three roller transfer coating with wide coating window. |
| 5 | Comma scraper metering, with precise adjustment mechanism, to achieve high coating precision. |
| 6 | Optional solvent recovery and treatment device. |
| 7 | Roll integral gantry frame, CNC precision machining, to ensure high precision and high stability. |
| 8 | The roller is made of imported cold-rolled chrome molybdenum material by heat-treated surface chrome plating and cryogenic treatment, with high internal and external hardness and good wear resistance. |
| 9 | American original imported hydraulic system, automatic control rolling pressure. |
| 10 | Patented hydraulic balanced rolling mechanism, stable pressure maintaining, good rolling uniformity in transverse and longitudinal direction. |
| 11 | Inclined block type roll gap adjustment device, surface display adjustment. |
| 12 | PLC touch screen is convenient to control parameter setting. |
| 13 | Roll continuously to avoid cutting waste. |
| 14 | The winding mechanism is equipped with an automatic deviation rectifying device to ensure that the edge of the material after rolling is neat. |
| Coating function | |||
| No. | Item | Technical parameter | Remark |
| 1 | Suitable system | NCM, LFP, LCO, LMO, Graphite, Silicon carbon and other systems battery coating | |
| 2 | Coating method | Continuous and intermittent coating | Transfer coating machine |
| 3 | Oven section | 1m/section | |
| 4 | Coating speed | 0~0.5m/min | Depending on the drying state |
| 5 | Base material thickness | Al foil : 8～30um, Cu foil : 8～30um | |
| 6 | Roller width | 330mm | |
| 7 | Effective coating width | ≤280mm | |
| 8 | Coating roller | Φ120mm | |
| 9 | Squeegee roller | Φ80mm | |
| 10 | Coating accuracy | ±3um | |
| 11 | Weight accuracy of double-sided coating (mg/cm2) | Coating center value ±1.0% | |
| 12 | Suitable for slurry viscosity | 2000~12000 (mPas) | |
| 13 | Single side coating dry thickness range | 20-200μm | |
| 14 | Solvent properties | Oily solvent | |
| NMP(s.g=1.033,b.p=204℃) | |||
| Aqueous solvent | |||
| H2O/NMP(s.g=1.000,b.p=100℃) | |||
| 15 | Suitable for solid content range | 20~85% | |
| 16 | Coating size accuracy (mm) | L≤±1, W≤±0.5 | L: length direction |
| W: width direction | |||
| *Introduction to the structure of coating parts： | |||
| 1. Integral unwinding, machine head mechanism： | |||
| No | Item | Technical Parameters | Remarks |
| 1. | Over roller installation structure | Steel frame firmly installed | |
| 2. | Over roller surface treatment | Surface oxidation of metal aluminum roll | |
| 3. | Tension control system | Automatic control of constant tension, tension range 0 ~ 50N, servo motor control | |
| 4. | Correction method | Automatic EPC control,Stroke 50mm | |
| 5. | Feeding Unwinding material method | The material roll is fixed by a 3-inch inflatable shaft； | |
| Unwinding single air expansion shaft | |||
| 6. | Maximum unwinding diameter | Ф250mm | |
| 7. | Maximum load of inflatable shaft | 80Kg | |
| 8. | Number of unwinding and inflation shafts | 1Pcs | |
| 9 | Main drive motor | Servo motor | |
| 10 | Roller surface treatment | Surface oxidation of metal aluminum roll | |
| 11 | Scraper structure | Double-sided comma scraper | |
| 12 | Coating roller (steel roller) | Hard chrome plating | |
| 13 | Back roller (rubber roller) | The surface is wrapped with imported EPDM | |
| 14 | Scraper intermittent height adjustment | Manual adjustment; | |
| 15 | Single head position | Installation and operation before drying tunnel | |
| 2. Coating drying tunnel | |||
| No | Item | Technical Parameters | Remark |
| 1. | Oven structure | Double-layer independent heating, arranged up and down | |
| 2. | Oven length | 1 meter / section | |
| 3. | Material | SUS304 stainless steel | |
| 4. | Temperature control | Divided into normal working temperature control, over-temperature monitoring and alarm protection control, and cut off the heating main power supply; each section is completely independent control | |
| 5. | Heating method | Analog signal control power heating, hot air circulation structure | |
| 6. | Heating power of single section oven | 6KW | |
| 7. | Temperature in drying tunnel | Design Max150 ℃, temperature difference in single section oven≤ ± 2.5 ℃ | |
| 8. | Blowing method | Upper and lower air blowing, common heating body for upper and lower air chamber | |
| 9. | Wind nozzle structure | The nozzle slot is slotted by a special mold | |
| 10. | Fan control | Contactor control | |
| 11. | Heating control | solid state relay | |
| 12. | Fan material | SUS304 stainless steel | |
| 13. | Solvent recovery system | Optional | |
| *Roller winding function： | |||
| 1 | Rolling purpose | Roller press the battery material coated on aluminum foil or copper foil | Remark |
| 2 | Maximum opening thickness of rolling mill | 2 mm | |
| 3 | Rolling width | Max 300 mm | |
| *Roller winding parameters： | |||
| 1 | Rolling force | Max. 35T（Can be customized to increase） | Remark |
| 2 | Mechanical speed | Max.10m/min | |
| 3 | Roll diameter: | Ф200 mm；Material：9Cr3Mo | |
| 4 | Roller surface hardness | ＞HRC65 | |
| 5 | Roller surface width | 330 mm | |
| 6 | Pushdown mode | Hydraulic | |
| 7 | Rolling accuracy | ±2.5 um | |
| 8 | Maximum opening of rolling mill | 2 mm | |
| 9 | Reducer and gear box | Modular | |
| 10 | Rolling mill motor | AC frequency conversion motor | |
| 11 | Winding | With correction function and tension control function | |
| *Control System： | |||
| No | Item | Technical Parameters | Remark |
| 1 | Main control system | Touch screen, PLC, servo system | |
| 2 | Operation mode | Manual, automatic, emergency stop; the whole machine can be operated before and after | |
| 4 | Alarm situation | When the device fails, the touch screen will display the corresponding correction screen | |
| *Hardware accuracy | |||
| No | Item | Technical Parameters | Remarks |
| 1. | Scraper | Round jump≤ ± 1.5um, Ra0.4, straightness≤ ± 1.5um | |
| 2. | Coating roller (steel roller) | Round jump ≤ ± 1.5um, Ra0.4 straightness≤ ± 1.5um | |
| 3. | Glue roll | Round jump ≤10um，straightness≤10um | |
| 4. | Roll | Round jump≤ ± 2um, Ra0.4, straightness≤ ± 2um | |
| 5. | Deviation correction | ±0.2mm | |
