
High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory
The ZYLAB Two-Stage Rotary Vane Vacuum Pump is specifically designed for laboratory and industrial applications, providing reliable vacuum support for devices such as vacuum filters, rotary evaporators, glass reactors, electric furnaces, and other equipment. With a focus on stability, efficiency, and protection, this...

Product Overview
The ZYLAB Two-Stage Rotary Vane Vacuum Pump is specifically designed for laboratory and industrial applications, providing reliable vacuum support for devices such as vacuum filters, rotary evaporators, glass reactors, electric furnaces, and other equipment. With a focus on stability, efficiency, and protection, this vacuum pump ensures optimal performance and long-term reliability for your vacuum systems.
Key Features
Automatic Oil-Return Prevention Valve
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Dual anti-backflow design with an automatic oil-return prevention valve.
Protects your vacuum system from oil contamination during shutdowns, ensuring clean and safe operation.
Adjustable Gas Ballast
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Multi-stage gas ballast design allows fine-tuning of vacuum levels.
Enhances handling of water vapor and other condensable gases, extending pump life and improving performance.
Integrated Cylinder Structure
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Precision-engineered monolithic cylinder body.
Proven rotary vane technology ensures stable vacuum performance and long-lasting durability.
Gear Pump Forced Lubrication
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Built-in gear pump with constant-pressure oil supply system.
Maintains reliable operation even under high suction pressure, ensuring smooth and stable performance.
Applications of Two-Stage Rotary Vane Vacuum Pump
Laboratory vacuum filtration and distillation
Rotary evaporators and glass reactors
Vacuum drying and degassing of materials
Industrial R&D and chemical processes
Electric furnaces and controlled atmosphere systems
Any vacuum system requiring stable, high-performance operation
Need More Information?
If you would like to learn more about the ZYLAB Two-Stage Rotary Vane Vacuum Pump or explore customized solutions for your laboratory and industrial applications, please feel free to contact us. Our technical team is ready to provide detailed information, professional guidance, and tailored solutions to meet your specific requirements.
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Specifications
Figures below are the manufacturer data for this model. Anything not listed is confirmed in writing with the quotation rather than estimated here.
| Model | LD-8 | LD-16 | LD-24 | LD-30 | |
|---|---|---|---|---|---|
| Pull speed | 50Hz | 8m³/h | 16m³/h | 24m³/h | 30m³/h |
| 60Hz | 9.6m³/h | 19.2m³/h | 28.8m³/h | 36m³/h | |
| Guanqi Town Extreme Limit Pressure | 5×10-2Pa | 4×10-2Pa | 4×10-2Pa | 4×10²Pa | |
| Guanqi Town Extreme – Limit Full Pressure | 5×10-1Pa | 4×10-1Pa | 4×10-1Pa | 4×10-1Pa | |
| Open the gas to limit the full pressure | 10Pa | 8Pa | 8Pa | 8Pa | |
| Motor speed | 50Hz | 1440 r/min | |||
| 60Hz | 1720 r/min | ||||
| Motor power single-phase/three-phase | 0.4/0.37kW | 1.1 kW | 1.1kW | 1.1kW | |
| Protection level | IP44 | IP44 | IP44 | IP44 | |
| Air intake and exhaust interface | KF16/25 | KF25 | KF25/40 | KF25/40 | |
| Oil quantity | 0.6-1.0L | 0.9-1.5L | 1.3-2.0L | 1.3-2.0L | |
| Working environment temperature | 10-40℃ | 10-40℃ | 10-40℃ | 10-40℃ | |
| Noise | ≤52dB | ≤58dB | ≤58dB | ≤58dB | |
| Weight | 21kg | 30kg | 35kg | 43kg | |
| Size (L * W * H) | 440x144x217 mm | 530x188x272 mm | 567x188x272 mm | 567x188x272 mm |
High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory In Detail

Processes This Unit Supports
These are the applications ZYLAB lists this model under. Each link opens the full equipment set for that process, which is useful when a project needs more than one machine.
Who Orders It
Fields this model already works in, plus what ZYLAB puts behind it: a 2-year warranty on most products, glass excluded, spare parts in stock and free application support by WhatsApp or email.
- University and institute research laboratories
Related Projects
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Ordering High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory
What is High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory typically used for?
The ZYLAB Two-Stage Rotary Vane Vacuum Pump is specifically designed for laboratory and industrial applications, providing reliable vacuum support for devices such as vacuum filters, rotary evaporators, glass reactors, electric furnaces, and other equipment. W
What warranty comes with High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory?
Most ZYLAB products carry a 2-year warranty, glass components excluded; the exact term for this model is the one printed in its specification table and repeated on the quotation. Within the warranty period any part that fails through no misuse of your own is replaced free of charge.
Can we get technical help before ordering High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory?
Yes, and it is free. Our technical staff help with model selection, troubleshooting, manuals and application questions whether or not you have ordered from us before. Write to [email protected] or message us on WhatsApp.
Which shipping methods do you use?
Sea freight for consignments over about 60 kg (11-30 days to North America, 25-33 days to Europe, 7-20 days to Southeast Asia), air freight to airport in roughly 7-10 days, and DHL, FedEx or UPS door to door in about 5-7 days for small urgent items.
How can we pay for High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory?
Bank (wire) transfer, letter of credit for larger orders, major credit and debit cards, and PayPal. Bank details are printed on the invoice; send us the transfer confirmation and we start processing straight away.
Quote For High-Performance Two-Stage Rotary Vane Vacuum Pump for Laboratory
Tell us the sample, the temperature and the atmosphere. You get the configuration, the price and the despatch date in one reply.
