Precision Micro-Concave Coating Machine for Battery Separator

• After-sales Service: 1year
• Warranty: 1year
• Type: Coating Production Line
• Coating: Powder Coating
• Substrate: Steel
• Certification: CE
• Model NO.: TOB-W400-2.4
• Condition: New
• MOQ: 1 Set
• Roller Width: 400mm
• Mechanical Speed (No Load): Max:5m/Min
• Oven Temperature: Max:140ºC
• Transport Package: Standard Export Packing
• Trademark: TOB
• Origin: China

Product Description

Precision Micro-Concave Coating Machine For Battery Separator

Functions and principles

This battery separator coating machine is used for precision coating of lithium-ion battery separators. It mainly consists of an unwinding part, a machine head part, an oven part, a traction and winding part and an electronic control part. Apply the stirred slurry evenly on the substrate to ensure that the size and weight are within the process range. After drying, it is rolled up to make preliminary preparations for the subsequent processes.

 

Process flow

Substrate unwinding →Tension stabilization→Micro-gravure coating→Drying→Tension stabilization→Correction→Rewinding

 

Substrate parameters

Item	Battery Separator
Substrate	PE, PP
Width (mm)	100~320
Thickness(µm)	8~30

 

 

Slurry parameters

Item	Ceramic slurry
Material	Al2O3
Solvent	Deionized water
Solid content(wt%)	3~15
Slurry specific gravity(g/cm3)	0.6~2.0
Viscosity(mPa.s)	500-2000

 

 

Coating parameters

Item	Battery Separator
Coating method	Continuous coating
Coating width (mm)	Max:300
Single side coating thickness(µm)	1~10
Single side coating weight (g/m2)	10~25
Coating speed (m/min)	0.5~3

 

 

Equipment specifications

Item	Content
Roller width	400mm
Mechanical speed (no load)	Max:5m/min
Unwinding specifications	Roll diameter: Max.φ200mm. Load bearing: Max.100kg. Reel specifications: Inner diameter 3 inches, approximately 76.2mm, length≤450mm. Reel material: metal, ABS plastic, paper tube.
Winding specifications	Roll diameter: Max.φ200mm. Load bearing: Max.100kg. Reel specifications: Inner diameter 3 inches, approximately 76.2mm, length≤450mm. Reel material: metal, ABS plastic, paper tube.
Oven heating method	Electric heating
Oven structure	2 sections × 1.2m/section = 2.4m, single layer
Oven temperature	Max:140ºC

 

Environmental requirements

Item	Content
Dimensions	The equipment is about L (4.0m) × W (2.1m) × H (1.9m) (width includes electrical cabinet, length does not include operating space)
Power requirements	Three-phase AC380V±10%, 50Hz, earth wire. Equipment power: 35KW, number of main power supplies: 1.
Compressed air	Compressed air pressure:≥0.6MPa, pressure fluctuation±1% (clean air after water removal, oil-free, filtering and pressure stabilization). Compressed air consumption: 10m³/h, number of interfaces: 1/unit. Interface trachea specification: Φ12mm.
Environmental	Ambient temperature: 25±5ºCfor the coating part (according to the buyer's process requirements). Relative humidity: 10%~30%RCH (according to the buyer's process requirements). Cleanliness: Class 100,000 (according to the buyer's process requirements).
Ground requirements	Total weight of coating machine: about 1.3 tons; Cement floor or terrazzo floor, flatness±5mm/m2, load-bearing capacity≥500kg/m2.
Oven air volume	Maximum exhaust air volume, at 140ºC: positive pole 1800m2/h, negative pole 1800m2/h. Maximum fresh air volume, at 60°C: positive pole 1500m2/h, negative pole 1500m2/h.