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Greentech International (Zhangqiu) Co., Ltd. is a professional side channel blower supplier. To meet demanding industrial requirements, the company offers its high-performance 2RB 413-1HY99 bare shaft ring blower, engineered for exceptional efficiency and durability.

The impellers in the G_series machines are mounted directly on the motor shaft for non-contact compression entirely without friction. Maximum operational reliability, even at high differential pressures, is ensured by the arrangement of the bearings outside the compression chamber.

The gas is taken in through the inlet. As it enters the side channel, the rotating impeller imparts velocity to the gas in the direction of rotation. Centrifugal force in the impeller blades accelerates the gas outward and the pressure increases. Every rotation adds kinetic energy, resulting in a further increase of the pressure along the side channel. Near the exit, the side channel narrows at the rotor, sweeping the gas off the impeller blades and discharging it through the outlet silencer where it exits the side channel blower.

Core Technology & Working Principle

Continuous Kinetic Energy Transfer

As gas enters the side channel, the rotating impeller continuously imparts velocity to the medium. Centrifugal force within the impeller blades accelerates the gas outward, causing an immediate and progressive pressure increase.

Linear Pressure Build-Up

Every single rotation adds cumulative kinetic energy, resulting in a continuous, linear increase of pressure along the length of the side channel.

Smooth & Pulsation-Free Discharge

The specialized narrowing design of the side channel near the rotor effectively sweeps the gas off the impeller blades, directing it smoothly into the outlet silencer for a stable, pulsation-free discharge.

Structural Design & Operational Reliability

Frictionless & Non-Contact Compression

By mounting the impellers directly on the motor shaft, the system achieves true non-contact compression. Because there is entirely no friction within the compression chamber, internal component wear is virtually eliminated.

External Bearing Arrangement

Positioning the bearings completely outside the compression chamber ensures maximum operational reliability, even when operating under high differential pressures. This layout completely isolates critical components from processing heat and potential contaminants.

Cooler Running & Extended Lifespan

The external configuration allows for cooler running bearings, which inherently extends grease life and significantly prolongs the overall service intervals of the machine.

Key Features & Performance Advantages

100% Oil-Free Air & Environmental Friendly

The compression chamber requires no lubrication. The discharged air is completely free of oil contaminants, making the equipment highly suitable for environmental protection and sensitive applications.

Complete Dynamic Stability & Low Noise

Due to precise balancing, the equipment operates with zero vibration. This complete dynamic stability simplifies installation. Meanwhile, integrated silencing technologies effectively dampen fluid acoustics, ensuring low noise levels during operation.

Compact Dimensions & Beautiful Surface

Featuring small physical dimensions, the blower occupies minimal space. The product also features a beautifully finished surface, reflecting high-quality manufacturing standards.

Maintenance & Duty Cycle

Minimal & Simple Maintenance

With few wearing parts and extended bearing lifespans, the blower requires very little routine intervention, substantially lowering the total cost of ownership (TCO) for users.

Continuous Duty Operation

Rugged construction and optimized thermal management allow the equipment to operate safely under continuous duty (24/7 heavy-duty operation) at its rated parameters.