Fengchao QDYG is a high-pressure coolant-pump family with an integrated variable-frequency motor arrangement. It is presented for deep-hole machining and coolant delivery through cutting tools, with a maximum outlet pressure of 3 MPa.
QDYG variable-frequency coolant pumps — official family illustration; supplied configuration must be confirmed.
Published specifications
Manufacturer catalog data
Family maximum outlet pressure3 MPa
Catalog example nominal flow2 m³/h
Catalog example immersion length723 mm
DriveIntegrated variable-frequency motor
Primary dutyHigh-pressure machine-tool coolant
FamilyQDYG variable-frequency coolant pumps
Product details
The catalog model example QDYG2/240-723 identifies a nominal flow of 2 m³/h and a standard immersion length of 723 mm. This designation is an example configuration; required flow at pressure and the actual tank geometry must be matched before selecting the hydraulic stack and immersion arrangement.
The material schedule lists stainless components for the base, impellers, diffusers and tie rods, with a high-strength stainless shaft, cast-iron outlet and carbon-steel coupling. The frequency-controlled drive permits adjustment to changing machine demand, but pressure, available coolant and filtration remain operating limits.
SELECTION NOTES
Specify the operating duty
Provide tool coolant demand at pressure, coolant formulation, temperature, filtration level and tank drawing. Confirm immersion length, controller interface, pressure control and operating speed range.
Published limits may describe different configurations within a series. Confirm that the required operating conditions are valid together.
