ZJP 900A Water-Cooled Roots Vacuum Pump - High-Capacity Industrial Vacuum Solution

The ZJP 900A water-cooled Roots vacuum pump delivers 900L/s pumping speed with advanced cooling technology, designed for demanding applications in vacuum coating, chemical processing, pharmaceutical production, and food processing industries.

ZJP 900A Water-Cooled Roots Vacuum Pump Product Details

Key Features

Superior Stability: Precision-balanced rotors minimize vibration

Quiet Operation: 84dB(A) noise level through optimized flow design

Energy Efficient: 15% lower power consumption than industry standards

Rapid Startup: Reaches working vacuum in under 3 minutes

Oil-Free Design: Eliminates backstreaming contamination

Overload Protection: Built-in overflow valve prevents damage

Contaminant Resistance: Special materials withstand particulate matter

Industrial Applications

Vacuum Coating: PVD/CVD, magnetron sputtering systems

Chemical Processing: Large-scale distillation, solvent recovery

Pharmaceuticals: Lyophilizers, sterile packaging

Food Processing: Freeze drying, dehydration systems

New Energy: Solar panel manufacturing, battery materials

Electronics: Wafer processing, vacuum encapsulation

Metallurgy: Vacuum melting, degassing

ZJP 900A Technical Specifications

ZJP 900A Frequently Asked Questions

1. What industries benefit most from the ZJP 900A?

Ideal for high-throughput applications including optical coating, chemical distillation, and pharmaceutical freeze drying requiring both high speed and clean vacuum.

2. How to maintain the water cooling system?

Use softened water, maintain 0.2-0.3MPa pressure, and clean quarterly. Our optional smart monitoring system automates maintenance.

3. What advantages does the 50:1 compression ratio provide?

Ensures stable performance when handling condensable gases or sudden gas load variations common in industrial processes.

4. Why choose oil-free design?

Eliminates hydrocarbon contamination critical for coating purity, pharmaceutical safety, and food-grade applications while reducing maintenance.

5. How is the 900L/s capacity maintained long-term?

Our patented three-lobe rotor design with ≤0.02mm machining tolerance retains 95%+ of initial pumping speed over time.

6. Is 7.5KW sufficient for 900L/s operation?

Advanced rotor profiling reduces internal losses, delivering 20% better efficiency than conventional designs at this capacity.

7. What's special about the DN250 inlet?

Minimizes flow resistance for rapid evacuation in coating and metallurgy applications. Optional flow straighteners further optimize performance.

8. Can it handle corrosive gases?

Standard models suit general industrial gases. We offer 316L stainless steel and fluoropolymer-sealed versions for aggressive media.

9. How is the 84dB(A) noise level achieved?

Through: ① Helmholtz resonators ② Composite sound insulation ③ Vibration isolation mounts ④ G2.5 dynamic balancing.

10. Why pair with liquid ring pumps?

Ideal for steam-heavy processes like distillation - the liquid ring handles >90% of vapor load, protecting the Roots pump.