We Greatech is a leading manufacturer Roots Blower and Vacuum Pump in Taiwan, we are
specialized in producing of:

(A)
Tri. Lobe Roots Blower and Vacuum Pump
Bore Size: 40mm to 350mm (1” to 14”)
Air Capacity: 0.1 to 280 m3/min
Pressure:
0 to 10000 mmAq for Ones Stage Type
10000 to 20000 mmAq for Two Stage Type
As Vacuum Pump: up to –5000 mmAq

Air Cooled Type / Water Cooled Type
One Stage Type / Two Stage Type
Pressure Conveyance Type / Vacuum Type
Silence and Energy Saving Type
Soundproof Enclosure
OEM / ODM
All above are available

(B)
Silence and High Efficiency Type Roots Blower and Vacuum Pump
Bore Size: 40mm to 150mm (1.5” to 6”)
Air Capacity: 0.1 to 22 m3/min
Pressure: 0 to 6000 mmAq
As Vacuum Pump: 0 to -5000 mmAq

Advantage:
Silence, No Soundproof Enclosure is needed
Power Saving, High Efficiency
Extremely Low Vibration, Long Lifetime
No Pulley, No Belt, No Pollution
Vertical Design, Save Space
Easy Installation, Long Maintenance Period

Beside of Roots Blower, we also manufacture membrane diffuser
Disc Fine Bubble Diffuser
Tube Fine Bubble Diffuser
Membrane Material: EPDM / PE
Diameter: 220mm – 330mm
Flow: 0.016 – 0.133 m3/min

Coarse Bubble Diffuser
Membrane Material: PU
Diameter: 80mm – 144mm
Flow: 0.08 – 0.45 m3/min