The LC-type Roots oil pump is composed of components such as the pump body, cover, shaft, gears, rotor, packing, and pressure cover. The LC-type Roots oil pump comes in two forms: with belt drive and gear reducer drive, and can operate in reverse. Oil-resistant seals are fitted at both ends of the shaft, with a return oil device in the middle to prevent air intake or oil leakage.

This pump is available in two types: one with a drive and gear reducer, and the other with a reversible action. Both ends of the shaft are equipped with skeleton oil-tight seals, and a return oil device is installed in the middle to prevent air intake or oil leakage.

The LC type Roots oil pump features the following characteristics:

1. Not sensitive to dust and steam content in the extracted gas.

2. The rotor does not require lubrication; the pump chamber is oil-free.

3. Low vibration, good rotor dynamic balance, no exhaust valve.

4. Low driving power, minimal mechanical friction loss.

5. Compact structure, with minimal land area required.

6. Low operation and maintenance costs.

7. High suction capacity over a wide pressure range.

8. Fast start-up, ready to operate immediately;

LC Type Root Oil Pump Working Principle:

Inside the pump chamber, there are two "8"-shaped rotors mounted perpendicularly on a pair of parallel shafts, driven by a gear set with a ratio of 1 to rotate synchronously in opposite directions. Between the rotors and between the rotors and the inner wall of the pump casing, there is a certain gap, allowing for high-speed operation. As a positive displacement vacuum pump without internal compression, the Roots pump typically has a low compression ratio, hence high and medium vacuum pumps require a priming pump. The ultimate vacuum of the Roots pump depends not only on the pump's structure and manufacturing precision but also on the ultimate vacuum of the priming pump. To achieve a higher ultimate vacuum for the pump, the Roots pumps can be used in series.

LC Type Rotor Pump Parameter Sheet: