POL-2800 Core Parameters
Product Features
Wide Application
11 models available, pumping speed 300–5500 m³/h. Flexibly matches various large‑scale processes.
Energy Efficient
Industrial VFD + permanent magnet synchronous motor for precise control. 30%‑50% less energy than traditional technology – lower operating cost.
Reliable & Stable
Designed for demanding industries like metallurgy and chemicals. Ultimate vacuum ≤60 Pa meets core process requirements.
Easy Maintenance
No traditional wear parts – robust construction. Only oil change and filter cleaning needed – reduces downtime.
Low Noise
Advanced screw rotor technology plus noise‑reducing insulation and damping design – improves plant environment.
High Integration
“Plug‑and‑play” complete vacuum system with screw main unit and VFD – simplifies on‑site installation and commissioning.
Specifications
| Model | Motor Power (kW) | Input Speed (RPM) | Pumping Speed (m³/h) | Vacuum (kPa) | Shaft Power (kW) | Discharge Temp. (°C) | Oil Flow (L/min) | Oil Heat Load (kW) |
|---|---|---|---|---|---|---|---|---|
| POL-300 | 4 | 3800 | 300 | 0.06 | 4.40 | 82 | 6.06 | 3.67 |
| POL-450 | 5.5 | 3100 | 450 | 0.06 | 6.50 | 82 | 8.94 | 5.42 |
| POL-600 | 7.5 | 3300 | 600 | 0.06 | 7.52 | 82 | 10.3 | 6.27 |
| POL-750 | 11 | 3000 | 750 | 0.06 | 10.60 | 82 | 20.2 | 8.84 |
| POL-900 | 15 | 3000 | 900 | 0.06 | 12.00 | 82 | 30.3 | 10.01 |
| POL-1100 | 18.5 | 2450 | 1100 | 0.06 | 14.60 | 82 | 38.38 | 12.18 |
| POL-1300 | 22 | 3000 | 1300 | 0.06 | 19.6 | 82 | 42.42 | 16.35 |
| POL-1650 | 30 | 2700 | 1650 | 0.06 | 21.90 | 82 | 48.48 | 18.26 |
| POL-1800 | 37 | 3000 | 1800 | 0.06 | 24.90 | 82 | 52.52 | 20.77 |
| POL-2800 | 45 | 3000 | 2800 | 0.06 | 35.50 | 82 | 70.7 | 29.61 |
| POL-3800 | 55 | 3000 | 3800 | 0.06 | 46.50 | 82 | 80.8 | 38.78 |
| POL-4500 | 75 | 2300 | 4500 | 0.06 | 58.80 | 82 | 126.25 | 49.04 |
| POL-6000 | 90 | 2800 | 5500 | 0.06 | 72.08 | 82 | 151.5 | 60.11 |
Applications
Puyan oil lubricated screw vacuum pumps are widely used in:
Industrial Production
Vacuum adsorption, degassing, thermoforming, electronic component packaging – stable vacuum.
Medical Equipment
Clean, reliable vacuum for surgical suction, negative pressure drainage, medical dryers.
Laboratory
Supports vacuum drying ovens, rotary evaporators – low‑temperature drying, degassing, inert atmosphere.
Central Vacuum System
Single or parallel units generate vacuum distributed through piping to multiple terminals.
Chemical & Pharmaceutical
Vacuum distillation, solvent recovery, reactor evacuation, vacuum drying.
Food Packaging
Core component of vacuum packaging machines – quickly removes air to extend shelf life.