20L Laboratory Planetary Vacuum Mixing Machine for Battery Cell Electrode Slurry

Application Scope

l Applicable for mixing and dispersing powders and liquids of various common batteries, resulting in uniformly mixed battery slurry. Particularly suitable for high-viscosity processes.

l Applicable viscosity range: ≤1,200,000 cP.

II. Main Equipment Parameters

Lower Barrel Component

l Design Volume: 28L

l Effective Volume: 8L–20L

l Inner Diameter: 35 cm

l Inner Depth: 30 cm

l Material: Contact parts made of 304 stainless steel

l Jacket Type: Triple-layer jacket on barrel wall (for heating/cooling, with insulation layer); single-layer bottom jacket for heating/cooling

l Heating Method: Electric heater at bottom + heat transfer oil in jacket with temperature probe

l Jacket Interface: G1/2", with quick-connect coupling; pressure ≤ 0.4 MPa

l Jacket Circulation: Customer-supplied; recommended inlet temp. ≤ 8°C, water flow > 10L/min

l Discharge: DN38 plunger valve at bottom

l Ambient Temperature: -10 to +120°C

l Mobility: Caster-mounted

Stirring Component

l Working Frequency: 5–50 Hz

l Stirring Power: 2200 W

l Paddle Speed: 8–86 rpm

l Planetary Speed: 5–53 rpm

l Paddle Diameter: 194mm

l Paddle Type: Multi-layer blades with bottom scraping

l Paddle Material: 304 stainless steel (304SS)

l Linear Speed: 0.09–0.9 m/s

l Paddles: 2

l Clearance (Wall): 9±1.5mm

l Clearance (Bottom): 3±1mm

Dispersing Component

l Working Frequency: 5–50 Hz

l Power: 3 kW

l Speed: 600–6000 rpm

l Disc Diameter: 70mm

l Disc Type: Serrated

l Material: 304 stainless steel

l Linear Speed: 2.1–21 m/s

l Discs: 2

l Shafts: 1

Scraper Component

l Holder Material: 304 stainless steel (304SS)

l Blade Material: PTFE

l Scraping Speed: Same as planetary speed

l Removable: Yes (must be removed in high-viscosity process)

Base & Lifting System

l Material: High-rigidity structural carbon steel

l Lifting: Electric

l Guiding: High-precision linear guide

l Lifting Stroke: ≤45cm

Upper Barrel Component

l Material: 304 stainless steel

l Powder Inlet: DN50 with sight glass quick clamp – 1

l Liquid Inlet: Shared with powder inlet

l Spotlight Port: DN50 – 1

l Vacuum Port: G1/2" female thread – 1

l Exhaust Port: G1/2" female thread – 1

l Spare Port: ISO quick clamp 3/4" – 1

l Vacuum Gauge Port: M14×1.5 internal metric thread – 1

Control System

l Electrical Cabinet: For inverter and low-voltage components

l Manual Panel: For buttons, knobs, instruments

l Power Supply: AC 3×380V±5%, 50Hz

l Control Mode: Electric + Hydraulic

l Drive Mode: Inverter-driven speed control

l Cooling: Air + liquid cooled

l Operation: Buttons and knobs on panel

l Temperature Display: Digital, shows material temp.

l Emergency Stop: one

l Alarms: Over-temperature alarm, shutdown, mute

l Speed Display: Panel display

l Power Indicator: one

l Timer: 1 (controls both dispersing and stirring)

l Note: If HMI is selected, all controls will be integrated into the touchscreen

Safety Interlock System

l Emergency Stop: Stops machine immediately and disables all functions

l Low-Speed Stirring: Allowed during barrel lifting

l High-Speed Dispersion: Only when barrel is raised

l Safety Lock: Barrel cannot be lowered or opened during operation

l Vacuum Backflow Prevention: Special buffer tank prevents oil backflow into barrel

l Fault Shutdown: Inverter protects against overload, overcurrent, overvoltage, leakage, phase loss

l Barrel Lifting: Only allowed after reaching position

l Vacuum Release Check: Cannot descend unless vacuum is released

l Interlock for Dispersion: High-speed mode only after full barrel lift

l Locking Safety: Mechanical locking system prevents barrel from falling unexpectedly

l Dry Mixing: Paddles rotate while lifting

Other Notes

l Temperature Probe: Pt100

l Measurement: Mounted on barrel wall

l Bearings: High-speed – imported, low-speed – domestic

l Seals: O-rings for static, mechanical for dynamic (domestic brand)

l Lubricant Grease: Domestic

l Seal Oil: Imported

l Hydraulic Cylinder & Station: Domestic

l Valves: Domestic

l Vacuum Requirement: Customer-supplied, 4L/S (2X-4)

l Vacuum Holding: -0.098 MPa, >-0.085 MPa after 24h without leakage

l Total Power: >6000 W

l Weight: Approx. 1000kg

l Dimensions: L1530mm × W950mm × H1792mm (incl. cabinet)

l Color: Off-white

l Floor Load: 900 kg/m²

III. Spare & Wear Parts List

IV. Supporting Conditions