⚙️ ZSV SERIES – OIL-FREE DRY CLAW VACUUM PUMPS
🔷 Product Overview
The ZSV Series is a range of rotary positive-displacement vacuum pumps featuring two claw-shaped rotors with precisely matched profiles.
The rotors are driven and synchronized by high-precision timing gears, maintaining a small internal clearance without metal-to-metal contact between:
➡️ The two rotors
➡️ The rotors and the pump housing
This non-contact design enables 100% oil-free operation, low vibration, minimal wear, and clean vacuum generation for industrial processes.
📌 Key Specifications
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Pumping speed: 108–1,080 m³/h
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Ultimate pressure: 80–200 mbar
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Motor power: 3–22.2 kW
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Motor speed: 3,000–3,600 rpm
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Cooling method: Air-cooled or water-cooled
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Inlet connection: 1¼ inches to 3 inches
🔄 Operating Principle
As the two claw-shaped rotors rotate synchronously:
➡️ The inlet chamber volume increases, drawing gas into the pump.
➡️ The gas is trapped between the rotors and the pump housing.
➡️ The chamber volume progressively decreases, compressing the gas.
➡️ The compressed gas is discharged through the outlet.
Since the rotors do not make direct contact, lubricating oil is not required inside the pumping chamber. This design significantly reduces friction, operating temperature, mechanical wear, and maintenance requirements.
✅ Key Advantages
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💧 100% oil-free operation
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🌿 No oil mist contamination in the exhaust gas
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🔇 Low noise and vibration
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⚙️ Non-contact rotors with minimal wear
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🔧 Low maintenance requirements
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🌡️ Low operating temperature
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🕒 Long service life
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⚡ Stable and efficient continuous operation
🏭 Industrial Applications
✨ Vacuum Coating
Used in surface coating, vacuum metallization, glass treatment, metal processing, and industrial component coating systems.
💻 Semiconductor Industry
Provides clean vacuum for semiconductor production lines, wafer handling, surface treatment equipment, and cleanroom systems.
💊 Pharmaceutical Industry
Suitable for vacuum drying, material conveying, concentration, degassing, and pharmaceutical manufacturing processes.
🚗 Automotive Industry
Applied in leak testing, system evacuation, component processing, vacuum forming, and automated assembly lines.
♻️ Industrial Exhaust Gas Treatment
Suitable for extracting and conveying dry gases, corrosive gases, toxic gases, radioactive gases, or dust-laden gases when the system materials and operating conditions are correctly selected.
🧪 Vacuum Degassing
Used to remove air and dissolved gases from oil, plastics, chemicals, molten metals, and other industrial materials.
📊 ZSV Series Technical Specifications
| Model |
Pumping Speed at 50 Hz |
Pumping Speed at 60 Hz |
Ultimate Pressure |
Motor Power at 50/60 Hz |
| ZSV110 |
108 m³/h |
130 m³/h |
150 mbar |
3/3.6 kW |
| ZSV140 |
140 m³/h |
165 m³/h |
150 mbar |
3/3.6 kW |
| ZSV180 |
180 m³/h |
215 m³/h |
150 mbar |
4/4.8 kW |
| ZSV250 |
252 m³/h |
300 m³/h |
80–200 mbar |
5.5/6.6 kW |
| ZSV360 |
360 m³/h |
430 m³/h |
80–200 mbar |
7.5/9 kW |
| ZSV650 |
648 m³/h |
775 m³/h |
80 mbar |
11/13.2 kW |
| ZSV900 |
900 m³/h |
1,080 m³/h |
80 mbar |
18.5/22.2 kW |
High-capacity models use water cooling to achieve a lower ultimate pressure and maintain a stable operating temperature.
🛠️ HOP NHAT HCM – Industrial Dry Vacuum Solutions
Hop Nhat HCM Air Compressor Company supplies ZSV Series oil-free dry claw vacuum pumps together with comprehensive technical services:
✔️ Model selection based on required pumping speed and vacuum level
✔️ Supply of complete pumps and replacement spare parts
✔️ Installation, maintenance, and repair services
✔️ Consultation for pumps operating in series or parallel
✔️ Integration into automated production lines
📞 Contact Hop Nhat HCM Air Compressor Company for professional consultation and a suitable model based on your actual operating conditions.