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GM Gear-increased Single stage Blower
 
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GM series blower is a product we manufacture by introducing technologies from Kawasaki Heavy Industries Group (KHI). It is designed and calculated with our advanced optimized aerodynamic design program, applying a modular impeller meridian plane cutting technique and using efficient semi-closed and mixed-flow type 3D impellers. It is designed and manufactured on the basis of key innovative technologies including stability design software for rotor vibration with the finite element method, finite element analysis of impeller intensity, vibration design software, etc.,  as well as our decades of decades of experience in the design and manufacturing of centrifugal blowers, featuring high efficiency, energy conservation, low noise, oil-free gas transfer, less floor space, long operating cycle, easy installation, maintain and use.

 

1、Explanations on GM model (e.g. GM35)

G--Initial of the GEAR-INCREASED
M--Initial of the MIXED-FLOW TYPE
35--Equivalent diameter of the impeller (in cm)
GM 35L-------“L”for low pressure, and“H”for high pressure

2、Models of GM series blowers

GM20L     GM25L    GM35L     GM45L    GM55L    GM65L     GM75L
GM20H    GM25H    GM35H    GM45H    GM55H    GM65H    GM75H

GM series air blower is of the structure of a single-stage overhung type, axial intake and radial exhaust. Air passes through the inlet duct with silencer and enters suction pipe and inlet guide vane. This is connected by the main driver through coupling to speed-increasing gear, which increase the air pressure by driving the 3D mixed-flow semi-closed impeller rotating at high speed. The air is exhausted through the diffuser, spiral housing and diffusing pipe. The lube oil is supplied by the main oil pump which is connected directly to the driving shaft, and by the electric auxiliary oil pump when starting and shutting down. The axial thrust of the high speed rotor is transferred from the thrust collar to the low speed shaft, greatly reducing the mechanical losses.

Structure of GM series blower

• Inlet guide vane mechanism
• Diffuser
• Volute 
• High speed rotor
• Speed increasing box
• Bearing
• Bull gear
• Coupling
• Lubricant system
• 3D semi-closed mixed-flow type impeller

Main parameters of GM series product

Model

Flow Rate (m3/min)

Compression Ratio

GM20L

50-110

1.3-2

GM20H

70-110

2.0-2.5

GM25L

90-200

1.3-2

GM25H

95-180

2.0-2.5

GM35L

180-350

1.3-2

GM35H

150-320

2.0-2.5

GM45L

330-600

1.3-2

GM45H

280-550

2.0-2.5

GM55L

450-800

1.3-2

GM55H

430-750

2.0-2.5

GM65L

700-1050

1.3-2

GM65H

630-950

2.0-2.5

GM75L

900-1500

1.3-2

GM75H

850-1150

2.0-2.5

   
 

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