Swihart Industries | Manufacturing Partnerships
Services & CapabilitiesCustom CNC
Machining Services
Projects CNC Machining Services of
Ductile Iron Rear Wheels
CNC Machining of Unloader Heads
CNC Machining of Aluminum
CNC Machining of Steel
Drive Shafts
Finish Machining of HubsFinish Machining of Cast
Metal Main Frames

CNC Finish Machining of Ductile Iron Unloader Heads for the Gas Compression Equipment Industry

CNC Machined Ductile Iron Heads
CNC Machined Ductile Iron Heads
CNC Finished Machined Iron Head - Bottom
CNC Finished Machined Iron Head - Bottom
CNC Finished Machined Iron Head - Top
CNC Finished Machined Iron Head - Top

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At Swihart Industries, Inc., we provide precision CNC machining services to a variety of industries. For this project, we machined ductile iron unloader heads for our customer in the gas compression equipment industry. Unloader heads are essential in handling the pressure in a compressor; they must perform flawlessly and stand up to harsh environments in the field. Our customer is the primary manufacturer of large, round, parts for the gas compressor industry and previously did all of the machining for these unloader heads in-house. They only contacted Swihart because of capacity issues at their own facility. After receiving the finished parts from us, the customer was so satisfied with our quality, flexibility, and delivery services that they no longer machine the parts themselves, and has given us 100% of the machining business for these unloader heads.

Each unloader head measures 22.005" in outer diameter by 8.443" high. We started with the initial rough casting, and then finished the part using our precision CNC turning equipment before drilling and tapping them in our CNC milling machine. The finished pieces have a surface finish of 63 RMS on all machined surfaces and meet dimensional tolerances of +/- .004". For more information about this precision CNC machining project, see the table below, or contact us directly.

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Highlights of this Precision CNC Machining Project

Precision CNC Machining Capabilities Applied/Processes Primary:
Material Sourcing - Castings
CNC Turning Services
CNC Milling - Drilling and Tapping Services
Overall Part Dimensions OD: Ø 22.005"
Height: 8.443"
Tightest Tolerances +/- .004"
Material Used Ductile Iron
Material Finish 63 RMS on Machined Surfaces
In Process Testing/Inspection Performed Dimensional Inspection, Visual Inspection
Industry for Use Gas Compression Equipment
Volume 7
Delivery Location Mount Vernon, OH
Standards Met Customer Specifications, 2D CAD Drawing
Product Name Unloader Head

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