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Dosing Capacitor Electrolyte with a Valveless Piston Pump
A customer needed to dose capacitor electrolyte accurately. The challenge? Intermittent dosing and chemically aggressive fluid.
Process requirements:
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6 grams per shot
-
6 seconds injection time
-
25 seconds pause between shots
-
40°C fluid temperature
-
Atmospheric pressure
The Solution
We supplied our CX-CP-SS-200-57-BJ-A-8 – a stainless steel valveless ceramic piston pump.
Why valveless? No check valves to stick, clog, or leak. Perfect for electrolyte.
Pump Specifications
| Parameter | Value |
|---|---|
| Model | CX-CP-SS-200-57-BJ-A-8 |
| Plunger dia. | 8 mm |
| Displacement | 200 μL/rev |
| Flow range | 0–100 mL/min |
| Speed range | 0–500 r/min |
| Wetted parts | SS304 |
| Connection | 6mm ferrule (custom) |
| Pressure | ≤0.3 MPa |
| Repeat accuracy | ≤0.5% |
| Max temp | ≤100°C |
| Drive | 2-phase stepper motor, DC24V, 50W |
| Mounting | Vertical (top/bottom ports) |
The Result
✅ 6g every 6 seconds – exactly as required
✅ 0.5% repeatability – consistent production
✅ No leakage – SS304 handles electrolyte
✅ No valve issues – valveless design
✅ Easy installation – 6mm ferrule fittings
Final Note
This is a real, proven solution running in production today.
Need a similar pump for your electrolyte dosing application? Contact us with your specifications.
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