Soap Extruder For Sale: Double Vacuum Stripper (Model 325) 92000
If you’ve been shopping for a double-vacuum plodder that won’t blink at 2 tons per hour, this China-built Model 325 is the one many plant managers keep whispering about. It’s technically called a Double Vacuum Stripper, but in day-to-day production it behaves like a robust, low-nonsense twin-stage vacuum extruder for bar soap noodles. To be honest, what surprised me most was the consistency of bar density after long shifts—operators like that.
At-a-glance specs
| Model | Double Vacuum Stripper (Model 325) 92000 |
| Origin | China |
| Capacity | ≈ 1,000–2,000 kg/h (real-world use may vary) |
| Motor Power | 15 kW + 30 kW, variable speed |
| Dimensions (L×W×H) | 4300 × 1080 × 2500 mm |
| Weight | ≈ 2850 kg (datasheet notes “2850kw”; likely a typo) |
| Typical Vacuum Level | up to −0.095 MPa |
Process flow and where it fits
Material: toilet soap or syndet noodles, pigments, fragrance. Method: twin-stage de-aeration and extrusion. Flow: noodle feed → first-stage compression → vacuum chamber → second-stage extrusion → die plate → strip forming → cooling/conveying → cutter/stamper. Testing: density (ASTM D792), moisture by KF (ASTM E203), pH of aqueous extract (USP <791>), surface roughness of strip (ISO 4287) and visual defect rate. Service life is typically 8–12 years with scheduled overhauls; liners and screws are wear items.
Why factories pick this machine
- Stable bar density and low air entrapment for crisp stamping.
- Variable-speed 15/30 kW drives help tune torque vs. throughput.
- Compact 4.3 m footprint vs. some bulkier European plodders.
- Energy use around 0.015–0.030 kWh/kg in typical runs.
Industries: personal care, hotel amenities, contract soap makers. Certifications often requested: ISO 9001 for the factory, CE for machinery safety, electrical conformity to IEC 60204-1. Many customers say commissioning is pretty straightforward—half a week if utilities are ready.
Customization options
Contact parts in SS304 or SS316, die shapes (oval, rectangular, hotel mini-bars), upgraded vacuum pump, quick-change die holder, inline cooling plate, and PLC/HMI with recipe presets. For color-heavy SKUs, I’d specify easy-clean access doors—saves hours.
Vendor snapshot: how it stacks up
| Vendor | Origin | Model/Capacity | Warranty | Certs | Lead Time |
|---|---|---|---|---|---|
| RS (Model 325) | China | 1–2 t/h | 12 months | ISO, CE (on request) | 6–10 weeks |
| Mazzoni LB | Italy | ≈1–3 t/h | 12 months | CE, ISO | 14–20 weeks |
| Binacchi | Italy | ≈1–2.5 t/h | 12 months | CE, ISO | 12–18 weeks |
Field notes and real feedback
One mid-size Asian contract maker swapped in this unit in Q2 and reported defect scrap down from 2.8% to 0.9% after dialing vacuum to −0.092 MPa. Changeover (die + color) averages 20–30 minutes, which is decent. Noise is surprisingly tame compared to older belt-driven plodders.
Good to know: keep noodles in the sweet spot of moisture (≈12–16%) for clean surface finish and fewer lamination lines. That tip came straight from a night-shift supervisor who’s seen it all.
What to ask before you buy
- Bar sizes and die shapes needed for your SKUs?
- Utilities: 3-phase power, vacuum pump capacity, air for cutters?
- Compliance: ISO 22716 alignment for cosmetics GMP; CE marking for plant safety.
- Spare kit: screws, bushings, seals—get them bundled.
If you’re screening vendors, shortlisting this model as your primary Soap Extruder For Sale and keeping a European unit as a benchmark is a practical approach. Budget-smart, but still production-grade. In fact, for many plants in growth mode, it’s the most balanced Soap Extruder For Sale option right now.
Citations
- ISO 22716: Cosmetics — Good Manufacturing Practices (GMP). International Organization for Standardization.
- Directive 2006/42/EC on Machinery (CE). Official Journal of the European Union.
- ASTM E203: Standard Test Method for Water Using Volumetric Karl Fischer Titration. ASTM International.
- IEC 60204-1: Safety of machinery — Electrical equipment of machines. International Electrotechnical Commission.
