Roots-Type Blowers are positive displacement blowers with a non-contact, three-lobe rotor as their core. They feature stable airflow, controllable pressure, and high durability, making them widely used in various industrial and environmental fields.

Grand Machinery Industry, inheriting the original technology and design of the Longtech brand, provides high-efficiency, low-vibration, and durable Roots-Type blowers, trusted by customers in over 20 countries worldwide.

Product Features

✔ Stable airflow output

Fixed-volume conveying is unaffected by pressure fluctuations and can maintain stable system operation for a long time.

✔ High durability and long lifespan design

High-quality castings, precision machining, and strict dynamic balance control are employed to ensure high reliability and long-term continuous operation.

✔Low noise, low vibration

The three-bladed rotor, combined with an optimized flow channel design, effectively reduces air pulsation and minimizes noise and vibration sources.

✔ Easy to maintain and low maintenance costs

It has a simple structure, durable parts, long maintenance cycle, easy maintenance and replacement, and low cost.

✔ Reliable quality, fully inspected before shipment

Each RUSH blower undergoes performance testing, vibration testing, and final factory inspection to ensure consistent quality.

Applications

• Wastewater treatment aeration
• Aquaculture oxygen supply
• Pneumatic conveying system
• Industrial wastewater treatment
• Dust collection/filtration system
• Vacuum and positive pressure conveying
• Thermal power plants, steel mills, paper mills
• Food, chemical and pharmaceutical industries

Technical Advantages

Precision trilobed rotor

Reduces gas pulsation and pressure pulsation, improving efficiency and operational stability.

Strict dynamic balance control

This ensures low vibration and low noise even at high speeds, extending the life of bearings and gears.

High-quality materials and processing

• EN-GJL-250 High-grade cast iron body
• High-precision CNC machining
• Gears, durable bearings, and seals can be made of FKM/PTFE.

Complete testing process

• No-load test
• Vibration test (mm/s)
• Performance and airtightness testing
• Complete factory inspection report (options 2.1 / 3.1)

Product Range

• LT Series : Standard Roots Blower
• LTV Series : Vacuum Duty
• RTS Series : Spiral Type (Three-bladed Spiral Rotor, Low Noise)
• LT-W Series : Water-cooled (suitable for high temperature/high pressure environments)
• LTH Series : High-speed type (high efficiency, high air volume)
• LTU Series : Top-in, Bottom-out (European Standard Configuration)

Accessories

• Leather belt shield
• Intake muffler / Exhaust muffler
• Safety valve (Relief Valve)
• Check valve
• Vibration-resistant flexible joint
• Belt/Pulley
• IE3 / IE4 high-efficiency motors
• Common baseframe
• Control Panel (Optional)