Get renewed service life from used rotors and
shafts at a fraction of the cost of new replacement with GasFlo's component
remanufacture program.
GasFlo's flame spray experts are skilled in remanufacturing components from
Alcatel, Leybold, Edwards, Kinney, Stokes and Busch vacuum pumps. In our
process, a powdered stainless steel and nickel composite is melted and
applied to areas on a shaft worn by seal or bushing contact.
Combustion at the flame spray gun nozzle creates a steady air stream that
draws the composite powder from a hopper and through the gun. As
the powder ejects from the gun into the high temperature flame, it melts and
gets carried to the rotor surface at high velocity. The hot material
impacts the steel surface of the shaft (see photo to right) where it rapidly
cools and forms a hard coating. During the process, the temperature of the
rotor itself is kept relatively low to prevent distortion or metallurgical
changes.
The first step in the procedure is proper surface preparation to ensure that
the sprayed material forms a strong bond with the shaft. Critical areas
such as vane slots are masked off to prevent adhesion of over spray. After
the right amount of material has been applied, the shaft or rotor assembly
is allowed to cool. Once cooled, each treated area is ground to precise
dimensions and surface finish to ensure proper performance in the vacuum
pump. Finally, the entire shaft or rotor assembly is deburred and polished.
The new stainless/nickel surface is more resistant to corrosion and abrasion
than the original shaft material. Pump rebuilders have noted how much
longer remanufactured rotors perform versus original rotors in corrosive
applications.
Above: Worn E2M40 1st stage rotor - note grooves from shaft seal contact
Below: The same area resurfaced with our flame sprayed stainless steel and
nickel composite. This rotor was returned to serviceable condition at just
over 25% the cost of a new rotor!
How to take advantage of this service:
Contact Eric Maskrey for a quote or for an RMA number to reference on your
shipping label.
Normal turnaround is 7-10 working days. GasFlo may be able to offer
immediate availability by exchanging your approved components for
remanufactured stock on hand.
Eric Maskrey / Tel: 973-808-9115 /
Emaskrey@gasflo.com
