Geso Systems Launches Upgraded PMS Series Small Screw Compressor, High-Pressure Piston Compressor Unit & Gas Booster

1.Introduction

GESO, a trusted manufacturer of industrial gas systems, today announces the launch of three new product lines for 2026: the significantly enhanced PMS Series small screw compressor, the BG Series small high-pressure piston compressor (350 bar), and the modular gas booster.

Drawing on direct customer feedback from extreme climate markets including Russia  Southeast Asia and Africa, these products deliver tangible improvements in energy efficiency, operational reliability, and intelligent control. Among them, the PMS Series represents the most substantial upgrade over conventional small-power screw compressors—directly addressing long-standing industry pain points in efficiency, transmission loss, and control precision.

2.PMS and its technological upgrade points

The PMS Series is not an incremental refresh but a comprehensive re-engineering of existing single-stage screw compressor platforms. Below is a direct comparison against conventional GESU small screw models（e.g., standard BAE-series units currently available on the official website

Comparison Dimension	Conventional Small Screw Compressor (BAE-series, etc.)	New PMS Series Upgrade
Motor Type	Asynchronous induction motor, IE4 energy efficiency class	IE5 synchronous permanent magnet motor
Whole-machine Energy Efficiency	Grade 2 or Grade 3	National Grade 1 energy efficiency
Transmission Method	Belt drive (5–8% parasitic loss)	Direct drive – zero transmission loss, fewer failure points
Control Technology	Basic VFD or fixed frequency	Vector control VFD with real-time flow matching
Intelligent Features	Limited monitoring capability	Smart HMI touch interface + RS485 Modbus + remote start/stop
Climate Adaptability	Standard configuration	Optional -40℃ cold kit and 45℃ high-temperature package
Certifications	Basic	CE, GCCA, EAC – export-ready

IE5 Permanent Magnet Motor vs. Induction Motor / IE5

Conventional small screw compressors widely use asynchronous induction motors（IE4 or lower）. The PMS Series adopts an IE5 synchronous permanent magnet motor, delivering superior efficiency across the entire load range, especially under partial load conditions where traditional motors suffer significant efficiency degradation. The IE5 motor also enables smoother operation, lower noise, and a more compact footprint.

Direct Drive vs. Belt Drive

A key upgrade separating the PMS Series from typical small screw compressors is the elimination of belt drive. Belt drive systems, while common in entry-level units, incur 5–8% parasitic power loss and require regular belt tensioning and replacement. The PMS Series adopts direct drive: the motor is directly coupled to the airend. This design transmits 100% of motor output to compression, eliminates a major failure point, and significantly reduces maintenance requirements.

Intelligent Vector Control 

The PMS Series features vector control VFD technology, which precisely matches compressor output to real-time demand. This stands in contrast to simpler VFD or fixed-frequency systems, which often respond slowly to load swings, leading to wasteful unloaded running or pressure overshoot. With vector control, pressure stability is maintained within a narrow band, and energy waste is minimized.

All-Climate Readiness

Drawing on field experience in Russia and Southeast Asia, the PMS Series is available with optional climate-specific packages: a -40℃ cold kit for Siberian winters（including low-temperature lubricant, electric preheating, dual-stage starter motor, and heated drain valves）, and a 45℃ high-temperature package adapting to tropical ambient conditions. Optional EAC certification and MSK-64 Grade 7 seismic rating are also offered for projects in demanding regulatory environments.

3. Small High-Pressure Piston Compressor (BG Series)

The BG Series is a compact, portable high-pressure piston compressor capable of delivering up to 350 bar (5075 psi). It is designed for applications where portability and high pressure are paramount.

Applications include:

• Breathing air (meets EN12021 standard) for firefighting and rescue

• Sports and leisure – paintball, high-pressure air rifles, rescue throwers

• Industrial testing – pressure vessel and pipeline leak testing

• Military and aerospace – on-site high-pressure charging for pneumatic systems

• Key features: small piston design, easy to move, suitable for frequent start-stop cycles, with optional filtration for breathing-grade air.

4. Modular Gas Booster

The GESO gas booster is designed to amplify existing low-pressure air or nitrogen to high pressure without replacing the entire compressor station. It is a cost-effective solution for intermittent high-pressure demands.

Specifications:

• Max outlet pressure: 40 MPa (5800 psi)

• Pneumatic drive option – no electricity required, suitable for hazardous areas (Ex-proof available)

• Media compatibility: air, nitrogen, argon, natural gas

• Compact modular design – easily integrates into existing pipelines

• Typical uses: valve and pipeline pressure testing, boosting nitrogen from a low-pressure generator for thermoforming or heat treatment, small-scale industrial gas cylinder filling.

5. Service & Availability

• Local support: Spare parts hubs in Moscow, Ho Chi Minh City, Jakarta – 24-hour dispatch for consumables

• Remote monitoring: Standard IoT module for fault alerts and remote diagnostics (PMS and gas booster)

• Lead time: PMS – 25 days; BG high-pressure piston units – 20 days; gas boosters – 15 days

For technical data or customized quotes for PMS series low-power screw air compressors, BG series high-pressure piston compressors, or gas booster compressors, please contact us immediately.