Design Center

Are you thinking of using a wire form in your assembly? Would it help if you knew the typical design constraints related to wire forming?

If your answers to these questions are “YES” then this section of our site is here for you! We cannot be design responsible for a customer’s part, but we have set this list up to let our customers and potential customers know what our wire and tube bending capabilities and limitations are as well as make them aware of what drives cost in a design. 

If your application allows you to stay within these parameters, then you can be assured that your cost will be lower than if your design requires you to fall outside of these loose guidelines. These are meant to be suggestions to simplify your design and are in by no means the only way to do things.

Clark Engineering does not assume responsibility for your design through use of these suggestions as it cannot verify its interaction with other components or it’s functional intent. Our focus is making parts to customer prints, adhering to all specifications mutually understood from print requirements.


Max major diameter and length for high speed threading = ½”OD and 4”length of threads
Blank length must be less than 36” long
Roll threading up to ¾ OD threads
Cut threading up to 1” OD threads

CNC turning

5C pneumatic collet closer (leaves no jaw marks on the mart)
1.125” max Diameter spindle through integrated feeder”
24” max blank length
4th-axis turning available

Cold heading / Forming

Max wire / Rod diameter = 9/16”
Max feature length = 3.5”
Max part length for coil feed headers = 7” OAL
Max blank length for magazine feed headers = 48” OAL

Vertical CNC Machining

Low Carbon Steel, high carbon steel, tool steel, stainless steel, aluminum, and brass experience
Max cutter diameter = 1”
Max X-axis travel = 22”
Max Y-axis travel = 16”
Max Z-axis travel = 18”
Currently limited to 3-axis CNC machining


No maximum outside diameter or wall thickness for straight parts
Maximum CNC bending Diameter of 1.5”
Diameters above 1.5” will only be considered for dedicated high volume application

Materials and Finishing

Solid round steel is the most economical option for most designs. We currently produce parts with a solid square profile and a solid Hexagon profile per the customers design if needed.

Clark Engineering has experience and currently produces parts from low to medium carbon steels, stainless, aluminum, brass, copper, pre-galvanized, and more.

Although we do not plate or provide finish on our parts in house, we have our own trucks and make milk runs to outside processing with finishes like Clear and yellow Zinc, Epoxy and Acrylic E-coat, powder coat, phosphate and oil, black zinc, etc. These are the types of finishes we use daily. Contact sales or engineering for a finish that is not listed.

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