High Efficiency Air-Cooled Dry Screw Vacuum Pump
Explore the Ever-Power F-Series: The ultimate Air-Cooled Dry Screw Vacuum Pump for industrial applications. Featuring a water-free cooling design, compact footprint, and oil-free operation. Ideal for chemical, semiconductor, and laboratory use. Get a quote for our high-efficiency vacuum solutions today.
LGB-F Series Performance Parameters
| Model | Unit | LGB15F | LGB30F(Y) | LGB50F | LGB70F | LGB110F |
|---|---|---|---|---|---|---|
| Pumping Speed (50Hz) | L/s | 15 | 30 | 50 | 70 | 110 |
| m³/h | 54 | 110 | 180 | 250 | 400 | |
| Ultimate Pressure (50Hz) | Pa | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 |
| Max Discharge Pressure | bar | 1.2 | ||||
| Motor Power (50Hz) | kW | 1.5 | 2.2 | 4.0 | 5.5 | 7.5 |
| Speed (50Hz) | rpm | 2900 | ||||
| Connection | Inlet (mm) | 50 | 50 | 50 | 65 | 65 |
| Outlet (mm) | 40 | 40 | 40 | 40 | 40 | |
| Max Design Temp | Inlet (°C) | ≤40 | ≤40 | ≤45 | ≤45 | ≤45 |
| Outlet (°C) | 100 | |||||
| Lube Oil (°C) | 70 | 70 | 65 | 65 | 65 | |
| Operating Environment | °C | ≤45 | ||||
| Noise | dB(A) | ≤73 @1m | ||||
| Circulating Water Pump Power (50Hz) | W | None | None | 110 | 110 | 110 |
| Cooling Fan Power (50Hz) | W | 127 | 127 | 130 | 130 | 130 |
*Note: Y indicates Permanent Magnet Motor.
Revolutionary Water-Free Vacuum Technology. High Efficiency Air‑Cooled Dry Screw Vacuum Pumps Designed for Flexibility and Performance.
Product Overview: The Air-Cooled Advantage
In industries where water resources are scarce or piping infrastructure is complex, traditional water-cooled pumps present significant challenges. Ever-Power solves this with the F-Series, a cutting-edge Air‑Cooled Dry Screw Vacuum Pump for Industrial Applications. Unlike standard models, these pumps do not rely on external circulating cooling water, making them a game-changer for facilities seeking rapid deployment and reduced utility costs.
This series represents a significant technological innovation in thermal management:
- Compact Models (LGB-15F, LGB-30F/Y): Utilize a unique, self-contained air-cooling system to maintain optimal operating temperatures without bulky external equipment.
- High-Capacity Models (LGB-50F ~ LGB-110F): Employ an advanced internal refrigerant circulation system. This efficient heat exchange ensures the reliability and long-term operation of the vacuum pumps even under heavy loads.
By eliminating the need for cooling water, these Industrial Vacuum Pumps offer unparalleled flexibility, allowing installation in remote locations or mobile skids where water connections are unavailable.

External dimensions drawing

Why Choose the F-Series?
Superior Performance
Effective temperature control is at the heart of our design. Through precision manufacturing, we achieve optimal pumping performance and stable vacuum levels. As premium Oil‑Free Vacuum Pumps, they prevent back-streaming and contamination, ensuring product purity.
High Efficiency
Higher production efficiency provides robust support for complex processes. The specialized screw profile minimizes energy consumption while maximizing throughput, making them a cost-effective choice for 24/7 operations.
Ultimate Flexibility
Independent of external engineering conditions like cooling towers or water chillers. The small footprint enables rapid and flexible deployment anywhere in your facility, significantly reducing installation and operating costs.

Ideal Applications for Air-Cooled Systems
The Dry Vacuum Pump Systems in the F-Series are engineered for sectors where water is either unavailable or poses a contamination risk.
- Laboratory & R&D: The small footprint and plug-and-play nature make it perfect for mobile carts and analytical instruments.
- Semiconductor Manufacturing: As Oil‑Free Air‑Cooled Vacuum Pumps for Semiconductor Manufacturing, they provide clean vacuum for load locks and transfer chambers without water line complications.
- Chemical Processing: Ideal for pilot plants and solvent recovery where water coolant might react with process gases.
- Pharmaceutical Packaging: Ensures a clean environment for blister packaging and vacuum drying.

Selection Guide: Finding Your Fit
Choosing the right Air‑Cooled Vacuum Pump depends on your process load and facility constraints:
- Assess the Load: Determine the required pumping speed. For smaller labs, the LGB-15F (54 m³/h) is sufficient. For industrial pilot lines, consider the LGB-110F (400 m³/h).
- Check Ambient Temperature: Ensure the installation site has adequate ventilation. While these are air-cooled, the ambient temperature should ideally be ≤45°C for optimal performance.
- Evaluate Gas Composition: If pumping corrosive vapors, consult us for specific coating options on the screw rotors.

Voice of the Customer
"We needed a vacuum solution for a mobile chemical testing rig. The LGB-50F was perfect—no water lines needed, just power and go. The cooling performance is impressive even in summer."
— Lab Manager, Specialty Chemical Corp.
"Switching to Dry Screw Vacuum Pumps saved us thousands in water treatment costs. The F-series runs quiet and clean, perfect for our pharmaceutical cleanroom."
— Facilities Engineer, PharmaPack Ltd.
Frequently Asked Questions (FAQ)
1. Does the F-Series require any cooling water at all?
No. The F-Series is completely air-cooled. Models up to LGB-30F use direct air cooling, while larger models (LGB-50F to 110F) use an internal refrigerant loop that is cooled by air fans, eliminating the need for external water connections.
2. What is the advantage of using a refrigerant circulation system in the larger models?
The refrigerant circulation system provides more efficient heat transfer than simple air blowing for larger pumps. It ensures the screw rotors maintain a stable temperature gap, preventing seizing and ensuring consistent vacuum performance under heavy continuous loads.
3. Can these pumps handle wet vapors?
Yes, the dry screw design allows for the passage of condensable vapors. Because the pump runs hot enough to prevent internal condensation (and lacks oil to emulsify), it is excellent for pumping water vapor.
4. What maintenance is required?
Maintenance is minimal compared to oil-sealed pumps. It mainly involves checking the gear oil (which lubricates the timing gears, not the vacuum chamber) and keeping the cooling fans/fins clean to ensure good airflow.
5. Are these pumps suitable for cleanrooms?
Yes, they are Oil‑Free Vacuum Pumps, meaning no oil mist is exhausted into the room. Their air-cooled nature also removes the risk of water leaks, making them ideal for cleanroom environments in semiconductor and medical manufacturing.
Ready to Go Water-Free?
Contact Ever-Power today for a customized quote on our air-cooled vacuum solutions.
Additional information
| edited | by hyw |
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Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port





