Fence FCL Series Dry Claw Vacuum Pump
Dry Claw Vacuum Pumps and Claw Air Compressors efficiently and economically generate non-contact vacuum or compressed air.
This capability stems from the internal compression principle in their rotating claw design. Gas undergoes pre-compression within
the compression chamber before being discharged. Compared to conventional rotor blower designs without internal compression,
dry claw pumps demonstrate significant energy savings and superior operational efficiency.
Claw Technology
The precision-engineered claw elements feature optimized high-precision profiles that roll together without contact, synchronized
by precision gear sets. This compression process remains completely dry and wear-free. Specialized seals isolate the compression
chambers from the gear housing. The claw rotors control medium transport through coordinated opening and closing of inlet/outlet
channels, eliminating the need for sealing fluids within the compression chamber.
Both claw vacuum pumps and compressors operate on a static compression system. Unlike rotary mechanisms, compression occurs
internally through volumetric contraction rather than rotor movement.
The claw pump configuration comprises two counter-rotating rotors operating in the compressor housing with micron-level clearances,
maintained through precision gearing synchronization. As the claws move past the suction port and axial intake channel, gas enters the
compression chamber.
During rotor rotation, gas progressively moves from the suction side to the pressure side. Compression occurs through gradual reduction
of the inter-rotor volume until the lower rotor exposes the discharge channel. This "internal compression" mechanism achieves pressure
differentials exceeding 60% efficiency.
Following pre-compression, the gas discharges through the pressure port. To dissipate heat generated during compression, cooling air
circulates between the compression housing and acoustic cover before exiting the system.
