Huada HDV-3900 oil-lubricated twin-screw vacuum pump

Huada twin-screw vacuum pump drives the permanent magnet motor through a high-efficiency synchronous open-loop vector inverter, which drives the twin-screw main engine to rotate. Through the air intake valve, air filter and other components, it can extract air from the vacuum system according to the customer's gas demand, and can change the exhaust speed in real time to achieve a stable vacuum degree.

Huada twin-screw vacuum pump drives the permanent magnet motor through a high-efficiency synchronous open-loop vector inverter, which drives the twin-screw main engine to rotate. Through the air intake valve, air filter and other components, it can extract air from the vacuum system according to the customer's gas demand, and can change the exhaust speed in real time to achieve a stable vacuum degree.

The HDU45A is an enhanced oil-free twin-screw vacuum pump from the HDU series Type A; at the same 45 kW power rating, its maximum pumping rate is increased to 2,700 m³/h, with a maximum vacuum level of 300 mbar. It is specifically designed for applications requiring high pumping rates, such as photovoltaic laminating, CNC vacuum bonding, chemical distillation, and electronic component packaging.

Huada twin-screw vacuum pump drives the permanent magnet motor through a high-efficiency synchronous open-loop vector inverter, which drives the twin-screw main engine to rotate. Through the air intake valve, air filter and other components, it can extract air from the vacuum system according to the customer's gas demand, and can change the exhaust speed in real time to achieve a stable vacuum degree.

The 55kw permanent magenta variable  frequency compressor is high-efficiency save power machine.It is designed in the FEM strength analysis to ensure the stability and reliablility of each part,and to realize long term operation with no faults,low noise and long life.

The Huada HDW550-10D is a 0.55 kW oil-free silent direct-drive air compressor powered by a 100% copper-wire motor. It requires no lubrication, operates at an ultra-low noise level of ≤48 dB, and delivers clean, dry, oil-free compressed air. With its compact lightweight design (only 19 kg) and 10 L tank, it is ideally suited for small-to-medium dental clinics, dental laboratories, precision electronics work, and small-scale model airbrushing where air purity is critical.

The Huada HD0302(A) is a 2.2 kW (3 HP) dual-cylinder direct-connect air-cooled piston air compressor featuring a parallel twin-cylinder design where two 42 mm cylinders work in tandem to deliver a generous 0.20 m³/min displacement. Paired with a 30 L air receiver and 0.8 MPa (116 psi) working pressure, it can pressurize the tank from zero to rated pressure in approximately 90 seconds. The direct-coupled drive eliminates belt-slip losses, delivering superior mechanical efficiency over traditional belt-driven units. It is widely used in auto detailing and quick-repair shops for tire inflation, small bodywork pneumatic tool operation, finish carpentry nailer supply, wall spray painting, and other multi-tool simultaneous-operation scenarios.

The HDBS-40-150 is a 30 kW oil-free screw blower designed for industrial low-pressure air supply. Applications include wastewater aeration and pneumatic conveying. Its airflow range is 4.0–7.0 m³/min, with a pressure range of 80–150 kPa. Internal screw compression, an enclosed cabinet and forced-circulation lubrication and cooling are combined in one package. The operating point should be selected against the process airflow and backpressure requirements, with DN150 inlet and outlet flanges provided for pipeline connection.