Air blower AHG series

screwsingle-stagefor wastewater treatment

AirHorse AHG Series Oil-Free Double Screw Blower – Energy-Saving Positive Displacement Blower

Short Description:
AirHorse AHG series oil-free double screw blowers are high-efficiency, low-noise positive displacement blowers designed for 24/7 continuous operation. Using internal compression, PMSM motor technology, VSD control and advanced silencing, they reduce energy consumption by 25–60% compared with traditional Roots blowers, while delivering clean, oil-free air for wastewater treatment, food manufacturing, pharmaceutical, biological engineering, spraying, plating, textile and pneumatic conveying applications.

Product Description:
Introduction
Guangzhou AirHorse Compressor Co., Ltd. is a high-tech enterprise specializing in the R&D and production of air compressor and screw blower system equipment. The AirHorse AHG series oil-free double screw blower is designed to meet modern energy-saving and environmental protection requirements.

The AHG series offers high efficiency, low speed and low noise. It helps users save energy up to 60% and obtain purer, oil-free air. It is widely used in food manufacturing, biological engineering, wastewater treatment, pharmaceutical, spraying, plating, textile and other industries for drying, dust removal, fermentation, evaporative distillation and pneumatic conveying.

Applications:
AirHorse oil-free screw blowers are widely used in:

Wastewater treatment / sewage treatment

Food manufacturing

Pharmaceutical industry

Biological engineering

Spraying industry

Plating industry

Textile industry

Drying

Dust removal

Fermentation

Evaporative distillation

Pneumatic conveying

Key Benefits:
High reliability – designed for 24-hour continuous operation

Energy-saving internal compression – saves at least 30% energy compared with Roots blowers; up to 60% at higher pressure

High-efficiency VSD control – permanent magnet synchronous frequency technology for further energy saving

Oil-free air – cleaner air output for sensitive processes

Low noise – normally controlled at 60–85 dB

Low pulse and long life – stable exhaust, low vibration, extended equipment life

True air flow – Roots blower nominal flow is generally about 5% lower than true air flow

24-hour running – high-efficiency cooling and lower operating temperature

Intelligent control – 7-inch color touch screen, remote operation, multi-machine control and multiple protection functions

Energy-Saving Performance
Compared with traditional Roots blowers:

At 0.5 bar: energy consumption reduced by about 25%

At 0.8 bar: energy saving reaches about 35%

At higher pressure: energy saving can reach up to 60%

Outlet temperature: about 20% lower outlet temperature rise

Temperature rise per 0.1 bar: Roots blower about 10°C; screw blower about 8°C

Noise: Roots blower can reach 116–118 dB even with silencer; AirHorse screw blower is usually controlled at 60–85 dB

Air flow: Roots blower nominal flow is generally about 5% lower than true air flow; screw blower provides true air flow

Energy Saving Case: 45 kW / 0.4 bar

Screw blower air flow: 43.5 m³/min FAD

Roots blower air flow: 33 m³/min nominal, 30 m³/min FAD, actual use 26 m³/min

Result: same power and pressure, air flow is 30% higher, and energy saving is more than 50%

Technical Advantages
Independent R&D team with proprietary technology

High quality control and reliable after-sales support

Suitable for harsh environments with high temperature difference, dust and high humidity

Systematized design with excellent performance components

Lower operating failures

Higher exhaust pressure and more flow output

Energy consumption ratio is in the advanced range of the blower industry

Main Components & Features
PMSM Motor
High-efficiency permanent magnet synchronous motor, large starting torque. Specially designed according to blower performance curves to improve efficiency and reduce specific power. The motor can run for a long time at 55°C. Protection class: IP54.

Silencing System
Silencer combined with low-noise screw air end. Drive components use vibration insulation construction. Intake and exhaust noise are reduced, creating a low-noise production space.

Air Filter
Intake air filtration accuracy reaches 15 μm. Pressure loss does not exceed 500 Pa. Clean intake air, low pressure drop, high efficiency. Intake sound design and soundproof cover make the whole machine quieter.

Control System
7-inch color touch screen with friendly interface and easy operation. 24-hour warning notice, remote operation support, intelligent dynamic display, failure analysis and recovery, multi-machine joint control, reverse protection, multi-point temperature detection and control protection, automatic load factor adjustment and other protection functions.

Frequency Converter
High-quality frequency converter for soft start, variable frequency speed control, improved running accuracy, power factor change, and over-current / over-voltage / over-load protection.

Systematization
Excellent performance parts are combined through systematic design, greatly reducing operating failures. Achieves higher exhaust pressure, more sufficient air output, and advanced energy consumption ratio in the blower industry.

Technical Specifications

Product type: Oil-free double screw blower / positive displacement blower

Working pressure: 0.4–1.5 bar

Air flow: 129–7,000 m³/h for listed AHG-10A to AHG-150A models

Motor power: 7.5–110 kW / 10–150 HP for listed models; larger AHG 30–425 series: 22–315 kW / 30–425 HP

Motor type: Permanent magnet synchronous motor (PMSM), IP54

Motor temperature: Can run continuously at 55°C

Noise level: Usually 60–85 dB

Outlet temperature rise: About 8°C per 0.1 bar; about 20% lower than Roots blower

Energy saving: ≥25% at 0.5 bar; ≥35% at 0.8 bar; up to 60% at higher pressure

Air filter accuracy: 15 μm

Air filter pressure loss: ≤500 Pa

Control: 7-inch color touch screen, remote operation, multi-machine control

VSD: Available

Port size: DN100–DN300

Dimensions: Approx. 1550×900×1400 mm to 2450×1430×2231 mm depending on model

Weight: Approx. 520–3250 kg depending on model

Certifications: CE, ISO 9001, UL

Altitude: Standard specifications suitable for below 1,000 m; customized configurations available for above 1,000 m

Selected Models

AHG-20A-4

Pressure: 0.4 bar

Air Flow: 1080 m³/h

Motor Power: 15/20 kW/HP

Port Size: DN100

Dimensions: 1550×900×1400 mm

Weight: 750 kg

AHG-30A-8

Pressure: 0.8 bar

Air Flow: 855.1 m³/h

Motor Power: 22/30 kW/HP

Port Size: DN100

Dimensions: 1750×1100×1700 mm

Weight: 875 kg

AHG-50A-10

Pressure: 1.0 bar

Air Flow: 1210 m³/h

Motor Power: 37/50 kW/HP

Port Size: DN100

Dimensions: 1750×1100×1700 mm

Weight: 1250 kg

AHG-75A-6

Pressure: 0.6 bar

Air Flow: 2845 m³/h

Motor Power: 55/75 kW/HP

Port Size: DN200

Dimensions: 2250×1430×2000 mm

Weight: 1650 kg

AHG-100A-4

Pressure: 0.4 bar

Air Flow: 5404 m³/h

Motor Power: 75/100 kW/HP

Port Size: DN200

Dimensions: 2450×1430×2231 mm

Weight: 2400 kg

AHG-150A-4

Pressure: 0.4 bar

Air Flow: 7000 m³/h

Motor Power: 110/150 kW/HP

Port Size: DN300

Dimensions: 2090×1460×2300 mm

Weight: 3250 kg

Why Choose AirHorse AHG Series?
Oil-free double screw blower with internal compression

Up to 60% energy saving compared with Roots blowers

24/7 continuous operation

Low noise, low pulse, low vibration

PMSM motor and optional VSD control

Intelligent touch-screen control and remote operation

Suitable for harsh environments with high temperature, dust and high humidity

CE, ISO 9001 and UL certifications

Strong after-sales service network