Large Part Machining

Oversized parts present unique machining challenges for manufacturers and suppliers in a broad range of industries. Given the special equipment and knowledge required to properly machine large parts, many manufacturers choose to outsource large part machining to a service provider with the right expertise.

Large Part Machining Services

Southern Spring & Stamping Inc. manufactures large parts (block and flat) up to 82 inches in size using a variety of industry-leading machinery and techniques. Our equipment portfolio includes:

  • Okuma Millac 852V. This machine features a gear head with variable speed capability, as well as large-diameter spindle bearings. With the Okuma Millac 852V, we can handle heavy-duty cutting and rapid machining at speeds ranging from low-to-high with large torque.
  • Okuma Genos M560. Though not specifically used for large part machining, our Genos M560 enables us to machine standard-sized workpieces or individual components from larger parts.

Southern Spring & Stamping offers a broad portfolio of capabilities for standard and large parts, including:

  • Spring and wire forms
  • Sheet metal fabrication
  • CNC machining
  • Metal stamping
  • In-house tool and die shop
  • Fourslide and vertislide presses

Value Added Services for Large Part Machining

We support our large part machining projects with several value-added capabilities, enabling us to act as a single-source provider on many projects. These additional services include:

  • Welding. Welding processes join together two separate metal surfaces into a single workpiece. At Southern Spring & Stamping, we offer MIG, TIG, and spot welding capabilities to support large part machining projects. Additionally, our welding capabilities include both robotic and laser welders.
  • Assembly. We provide fast and accurate assembly services through our team of skilled in-house assemblers and advanced equipment.
  • Powder coating. Powder coating is a popular finish used on a variety of metal parts. Our equipment includes a conveyor driven pretreatment and cleaning line, a 120′ curing oven, and will accommodate workpieces up to 50″ x 24″ x 18″.
  • Electroplating. Another popular form of metal finishing, electroplating uses an electrical current to align a thin protective layer of metal to the object. This coating can help increase thickness, durability, or simply improve the aesthetic of the product. We offer electroplating through several local trusted vendors.
  • Silk screening. We can apply custom color codes, text, images, or branding on standard or large parts with our advanced silk screen printing equipment.
  • Metal finishing. To make sure your product is the best it can be, Southern Spring & Stamping offers a variety of finishes that improve corrosion resistance, reduce friction and wear, enhance the ease of disinfecting/cleaning, or act as a paint primer.
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Parts Made From Large Part CNC Machinery

Parts Made From Large Part CNC Machinery

Large machinery and heavy equipment often require a range of parts and components beyond what a typical CNC milling or turning machine can produce. As such, large part CNC machining is considered a specialized area of manufacturing because it requires skilled machinists that understand the intricacies of large part machining, as well as specialized equipment that can hold and cut the oversized workpieces.

Some examples of oversized parts produced via large part machining may include:

  • Rings
  • Large shafts
  • Levers
  • Axles
  • Pipeline components
  • Industrial rotors

Numerous industries rely heavily on large part machining, such as:

  • Automation
  • Fluid power
  • Food processing
  • Oil and gas rigs/pipeline equipment
  • Packaging machinery
  • Power generation/renewable energy
  • Printing equipment
  • Steel processing
  • Structural components

How is Large Part Machining Different?

These factors separate large part machining from standard CNC machining:

  • Temperature. While standard-sized metal parts expand and contract with temperatures, this expansion is much more notable in very large parts. Even a few degrees can change the size of a workpiece. As such, large workpieces must have their temperature stabilized before machining can begin to ensure proper tolerances can be achieved.
  • Five-axis drilling. Machining smaller parts can often be done with three- or four-axis milling equipment. Large part machining uses a five-axis machine that handle milling and drilling at any point on the large workpiece.
  • Material stress. Machining processes, temperature variations, and various other factors during production can result in residual stress in a part. These stresses create distortions that display more prominently in very large parts.
  • Specialized equipment. Large part machining requires machine tools intended for oversized workpieces, but also require more technology than the machine tool itself. Manipulating the workpiece often requires overhead cranes or other material handling capabilities.

About Southern Spring & Stamp Inc.

Southern Spring & Stamping has been an expert in large part machining for more than 60 years. As a premier provider of metal fabrication and machining services, we strive to offer end-to-end solutions to our customers. We operate a 100,000-square-foot manufacturing facility that includes in-house tool and die capabilities and an expansive portfolio of advanced fabrication and machining equipment. To see how we can support your large part machining needs or any other metal fabrication project, please contact us today.

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