Semi-Float Axle Shaft
Our semi-float axle shafts have a hot forged flange and a cold extruded shaft and are designed for use in class 1, 2, and 3 pick-up trucks, vans, and sport utility vehicles. Semi-float axle shafts are also used in rear wheel drive passenger cars. All of our extruded products are ultrasonically inspected for internal defects that may develop during the manufacturing process. All of the semi-float axles produced at Mid-West are provided either milled to length, or milled to length and centered in both the flange and spline ends. Mid-West Forge also produces non-extruded semi-float flanged axle shafts for high torque racing applications.
Full-Float Axle Shaft
Full-float axles are produced with a hot forged flange only, or with a hot forged flange and hot forged spline. These axles are primarily used in class 4 through 8 trucks and both single and dual wheel pickup trucks. Mid-West Forge also produces smaller full-float axles used on standard lift trucks.
Mid-West produces a wide variety of products ranging from large and small flanged shafts, double splined shafts, and input and output shafts. All of the shafts forged at Mid-West are heated using induction heating. This heating method provides the best temperature control, short cycle times, and most consistency from piece to piece. Tight control of the heating process helps to maintain grain size integrity.
Machining, Heat Treat, and Assembly
Mid-West Forge has the capability to machine, heat treat, and assemble a variety of shafts including both full float and semi-float axle shafts.
Induction Heat Treat
We offer three distinct power ranges from 300 kW with a frequency of 10 kHz, 400 to 600 kW with a frequency from 10 kHz to 1 kHz, and 400 kW to 500 kW with a frequency from 10 kHz to 1 kHz. We can handle parts up to 125 pounds per spindle, up to 60” in length with case depths ranging from 1.5 mm to 13.0 mm. Mid-West Forge is a CQI-9 certified supplier.
We offer a 25’ continuous belt oven with a max temperature of 500°F, and a 24’ continuous belt oven with a max temperature of 800°F. Both include programmable speed and temperature controls giving us the ability to temper product immediately after the induction hardening process. We also have a 54” x 72” x 72” box oven with a max temperature of 650° allowing us to temper a wide variety of parts at various different temperatures.