Dry Claw Operating Principle
Dry claw vacuum technology is based on a static compression system. In contrast to rotary lobes, compression happens internally by volume contraction. Inside the pumps, two claw-shaped rotors turn in opposite direction inside the cylinder wall. These rotors operate without the aid of a sealing fluid and in a non-contacting manner due to the tight machining tolerances and their unique claw shape.
As the claw-shaped rotors move, they expand a volume of air at the inlet of the pump, carrying that volume around the outside of the pumping chamber, and then compressing that volume out of the exhaust. The shape of the claw maximizes transport volume per cycle while effectively timing the opening and closing of the suction and exhaust channels against expansion and contraction of that volume.
