Rotary Screw Blower
HL618 series screw blower
Pressure: 34.5–248.2 kPa
Flow Rate: 9.05–74.8 m³/min
Shaft Power: 11.9–230 kW
Advanced rotor profile design, effectively reducing fluid dynamic losses and improving host efficiency.
Excellent internal compression characteristics with low power consumption, saving up to 30% energy compared to Roots blowers.
Air-cooled structure, capable of handling single-stage pressure up to 250 kPa without cooling water.
Oil-free design in the rotor chamber, ensuring high air quality.
The rotary screw blower is a new product developed by Shandong Zhanggu, leveraging years of design and manufacturing experience, to meet the market's demand for energy efficiency and environmental protection. This series of screw blowers features a compact structure, unique appearance, high efficiency, low noise, reliable performance, and long service life, making it highly suitable for applications requiring medium to small flow rates and high pressure. It is an ideal air source equipment widely used in industrial fields such as metallurgy, machinery, chemicals, mining, and power.
Product Features:
Advanced rotor profile design, effectively reducing fluid dynamic losses and improving host efficiency.
Excellent internal compression characteristics with low power consumption, saving up to 30% energy compared to Roots blowers.
Air-cooled structure, capable of handling single-stage pressure up to 250 kPa without cooling water.
Oil-free design in the rotor chamber, ensuring high air quality.
Low airflow pulsation level, enabling smooth operation at high speeds and high pressures with low aerodynamic noise.
Helical synchronous gears with keyless connections ensure reliable positioning and stable, safe operation across a wide range of speeds.
Large-diameter rotor shaft design, enhancing shaft stiffness and load-bearing capacity.
Four-point angular contact ball bearings combined with cylindrical roller bearings at the positioning end ensure sufficient load capacity and stability under extreme conditions, extending bearing service life.
Intermediate connection structure design for the casing ensures uniform stress distribution, improving overall load-bearing capacity; large reinforcement ribs enhance casing rigidity, ensuring reliable operation under high pressure.
Splash lubrication system with low oil agitation power consumption, ensuring stable oil supply to gears and bearings.
Unique air seal configuration provides effective sealing and long service life.
Streamlined heat sinks on the end covers improve gearbox heat dissipation.
Performance advantages
Ensuring Continuous Operation
In demanding and dusty application environments, a reliable compressed air supply is crucial for maintaining uninterrupted production. The BSG series oil-free screw blowers are designed, manufactured, and tested in compliance with GB/T 15487 standards. The fully enclosed IP54 motor ensures continuous operation even in dusty and humid conditions, delivering enhanced reliability.
Protecting Your Reputation and Production
In almost all applications, oil contamination in compressed air can lead to serious production issues and increased costs. The BSG series oil-free screw blowers set a new standard for air purity, providing superior protection for critical applications and meeting today’s increasingly stringent air quality requirements.
Convenient Installation
The BSG series oil-free screw blowers are ready for operation immediately upon delivery. The complete supply package eliminates the need for any additional customer procurement, simplifying the installation process and saving both time and costs. These blowers can be directly integrated into existing compressed air pipelines for instant startup and operation.
Market Distribution
We have 56 offices throughout the country. In addition to Taiwan, 33 provinces in the country's administrative regions have a sound sales and service network. We can provide you with timely and convenient pre-sale, sale, and after-sales service, through which we understand your needs, in order to meet customer customization requirements while continuously improving our service and quality system.