3GH 350 Three Stage Side Channel Blower (7.5kW) designed for CNC routers and woodworking vacuum tables. Features triple impellers for ultra-high vacuum (-700 mbar) and pressure (820 mbar). 100% oil-free, durable copper motor. Factory direct pricing.
Stop Material Slipping with the Ultimate Vacuum Power.
The 3GH 350 is a heavy-duty Three Stage (Triple Impeller) regenerative blower. Unlike standard single or double-stage blowers, this unit compresses air three times internally to generate a massive vacuum force of -700 mbar.
It is the industry standard for CNC Nesting Machines and Woodworking Engraving Centers, ensuring that even small or warped boards are held down firmly during high-speed cutting. If you need maximum hold-down force without the maintenance cost of a rotary vane pump, the 3GH 350 is your best choice.
Parameter |
Specification |
Rated Power |
7.5 kW (10 HP) |
Voltage |
220V / 380V (3 Phase) |
Frequency |
50 Hz |
Rated Speed |
2840 r/min |
Max Airflow |
250 m³/h |
Max Vacuum |
-700 mbar (High Performance) |
Max Pressure |
820 mbar |
Weight |
140 KG |
· Triple Impeller Technology : The 3-stage design allows for higher pressure accumulation, bridging the gap between standard blowers and vacuum pumps.
· 100% Oil-Free & Maintenance Free: Completely dry running with no oil or carbon vanes to replace. The pumped air is clean and pollutant-free.
· Pure Copper Motor: Built with high-grade copper winding for superior conductivity, efficiency, and longer service life compared to aluminum motors.
· High-Temp Bearings: Equipped with special high-temperature resistant bearings (SKF/NSK style) to withstand the heat generated by high-pressure compression, ensuring stable 24/7 operation.
· Rugged Construction: Heavy die-cast aluminum housing (140KG) reduces vibration and noise while providing excellent heat dissipation.
· Woodworking & CNC: Vacuum hold-down for nesting machines, panel furniture production, and engraving tables.
· PCB Manufacturing: Hold-down and cleaning for printed circuit boards.
· Pneumatic Conveying: Long-distance transport of heavy granules where high pressure is required.
· Medical & Dental: Central vacuum systems requiring high suction power.
· Textile Industry: Sock knitting machines and heavy fabric handling.








