Oil-Free Screw Vacuum Pump Technology | China Suppliers & Factory for High-Performance Vacuum Solutions
01
Simple and compact structure
Composed of counter-rotating screws, pump body, end cover, sealing components, etc., the structure is very simple
02
Independently produced and manufactured
Independently produced and manufactured, with over 40 patent technologies, rated as a high-tech enterprise and a science and technology enterprise, and has passed ISO9001 quality management system certification
04
Provide three corrosion-resistant material options
Nickel-phosphorus alloy, Hastelloy alloy, Teflon
05
Dry operation
Dry operation, easier to recover solvents
Product Parameters
| Model Number |
Vacuum Extraction Rate (L/S) |
Power (KW) |
Limiting Pressure (Pa) |
Speed (rpm) |
Cooling Water (L/min) |
|---|---|---|---|---|---|
| LGB-10 | 10 | 1.1 | 5 | 2900 | 0 |
| LGB-15 | 15 | 1.5 | 5 | 2900 | 0 |
| LGB-20 | 20 | 2.2 | 5 | 2900 | 0 |
| LGB-50 | 50 | 5.5 | 5 | 2900 | 8 |
| LGB-80 | 80 | 7.5 | 5 | 2900 | 10 |
| LGB-120 | 120 | 11 | 5 | 2900 | 12 |
| LGB-150 | 150 | 15 | 5 | 2900 | 14 |
| LGB-200 | 200 | 18.5 | 5 | 2900 | 18 |
| LGB-220 | 220 | 22 | 5 | 2900 | 20 |
| LGB-300 | 300 | 30 | 5 | 2900 | 25 |
| LGB-400 | 400 | 37 | 5 | 2900 | 30 |
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Frequently Asked Questions
Q
What is the vacuum extraction rate range available in the LGB series pumps?
The LGB series covers a wide vacuum extraction rate range from 10 L/S (LGB-10) up to 400 L/S (LGB-400), making it suitable for a broad range of industrial vacuum applications with varying capacity requirements.
Q
What is the limiting pressure for all LGB series models?
All models in the LGB series share a uniform limiting pressure of 5 Pa, ensuring consistent and reliable vacuum performance across the entire product lineup regardless of the model size.
Q
Do all LGB series pumps operate at the same speed?
Yes, all LGB series models operate at a standard speed of 2900 rpm, which ensures stable rotational performance and consistent vacuum output across all capacity variants.
Q
Which LGB models require cooling water, and how much is needed?
Smaller models (LGB-10, LGB-15, LGB-20) do not require cooling water (0 L/min). From LGB-50 onwards, cooling water is required: LGB-50 needs 8 L/min, with requirements increasing progressively up to 30 L/min for the LGB-400 model.
Q
How much power does the largest LGB-400 model consume?
The LGB-400, the highest-capacity model in the series with a vacuum extraction rate of 400 L/S, has a power consumption of 37 KW. Power requirements across the series scale proportionally with the extraction capacity.
Q
How do I select the right LGB model for my application?
Selecting the right LGB model depends on your required vacuum extraction rate (L/S), available power supply (KW), and whether your facility can provide cooling water. For light-duty applications with lower throughput, the LGB-10 to LGB-20 range is ideal. For high-volume industrial processes, the LGB-200 to LGB-400 models are recommended. Always consult the specifications table and your application requirements before making a selection.











