Laboratory Slot Die Coating Machine MR-SDCM200-1m
Model: MR-SDCM200-1m
Slot Die Coating Machine is a new type of high-precision, reliable, and stable extrusion coating machine that our company developed for power lithium batteries.
This equipment features a high-precision vertical plate structure, ensuring stable operation. It utilizes a high-speed computing central controller with a modular design, integrating digital module technology, analog control technology, and unified control technology. An advanced PID tension control system automatically maintains a constant coating tension output.
Equipped with a high-precision extrusion die from Zhongneng, the machine allows fine-tuned adjustments to the coating layer's leading and trailing edge thickness. Additionally, it includes functions such as stop-position retention, automatic fault detection and alert, and self-correction, reducing labor costs and minimizing material waste.
slot die coater Working Process：
The electrode substrate placed on the unwinding device undergoes automatic correction and PID tension control to adjust the unwinding tension before entering the coating head. The electrode is coated according to the program set by the coating system. The wet electrode then enters the oven, where it is dried by circulating hot air. After drying, the electrode's tension is adjusted by the tension system, which also controls the winding speed to synchronize it with the coating speed. The electrode is automatically corrected by the correction system to maintain its set position and is wound by the winding device.
slot die coating machine Overall Structure
Machine size: Length: 2510mm (maximum length of the machine)
Width: 1200mm (maximum width of the machine)
Height: 1250mm (maximum height of the oven)
Weight: 1.2T (Max.)
Features
* Coating Modes: Continuous coating, single-gap coating, double-gap coating, reverse overlapping coating, reverse staggered coating.
* Precision Adjustment of Extrusion Module Mechanism: Utilizes imported servo motors to drive high-precision ball screws for moving the extrusion module, with an adjustment accuracy of 0.001mm.
* Simultaneous Dual-Layer Coating: Supports concurrent application of both primer and topcoat layers.
* Full-Process Precision Web Guiding Control: Includes unwinding and rewinding correction systems to ensure accurate material alignment.
* High-Precision Constant Variable Frequency Tension Control Throughout the Process: Maintains consistent tension in both unwinding and rewinding zones.
* Energy-Efficient Oven Circulation Design: Features independent air inlet and exhaust dampers controlled by separate blowers and exhaust fans, comprising one section.
* Stainless Steel Oven Construction: The oven is constructed entirely of stainless steel, including the housing, heating elements, fans, and sealing plates. It consists of one section with a length of 2 meters.
* Durable Large-Diameter Mirror-Finished Aluminum Rollers: Equipped with imported bearings, these rollers are designed to withstand wear for over five years.
* Robust and Comprehensive Control System: Offers safety operation protection, alarm notifications, and troubleshooting assistance.
Technical Parameters
|
No. |
Name |
Specifications |
|
1 |
Overall Size |
L 2150 * D 1200 * H 1250 mm(Not include the feeding system) |
|
2 |
Power Supply |
AC380V five-wire, three-phase main wire uses 10mm² or above, neutral wire 6mm², ground wire 6mm², main power switch 100A. |
|
3 |
Air Source |
Dry gas ≧0.7MPA, 20L/min. |
|
4 |
Power |
1-section oven: startup power ≈16kW, average operating power ≈11KW/H. (depending on heating temperature) (heating tube 9KW, fan 0.75KW). |
|
5 |
Substrate Material Range |
Copper foil 6um～35um Aluminum foil 6um～35um |
|
6 |
Effective Coating Width |
Coating width ≤ 200mm, coating roller and over roller length 250mm |
|
7 |
Single-sided Coating Thickness Range |
Primer range: 25um～250um; Topcoat range: 25um～250um |
|
8 |
Coating Accuracy |
The surface density of a single surface is ≤±1.2%. (Based on the positive electrode material as the inspection standard, excluding the 8mm range of the head and tail edges) |
|
9 |
Effective Coating Length Range |
The gap coating length is 10mm~9999mm; the gap length is 5mm~9999mm, and the coating length + gap length ≧50mm. |
|
10 |
Coating Length Accuracy |
Coating length ≤±0.3mm, gap length ≤±0.3mm, average length deviation ≤±0.5mm, tail length ≤±0.5mm, coating width ≤±0.5mm, front and back alignment ≤±0.5mm. (The coating length must be less than 1000mm as standard) |
|
11 |
Suitable Slurry |
Lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, ternary battery positive and negative electrode coating process |
|
12 |
Suitable Solvent |
NMP/ Water-based |
|
13 |
Suitable Solid Content |
35-75 % |
|
14 |
Suitable Slurry Viscosity |
Negative electrode 2000~8500 Cps; Positive electrode 3000~15000 Cps; |
|
15 |
Operating Speed |
Design coating speed 0.2m/min～1.5m/min (actual coating speed is related to the coating formula); mechanical speed 0.2m/min～3m/min |
|
16 |
Drying Temperature Range |
Room temperature ~ 150 degrees Celsius, temperature deviation ≤ ± 3 degrees Celsius, each zone is independently set and controlled |
|
17 |
Winding and Unwinding Deviation Correction Accuracy |
≤±0.5mm |
Product Display
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