Precision Machined
Plastic Components
Plastic Components
The global market for Teflon was worth almost $2 billion in 2020. The unique properties of Teflon make it useful in many industries. Are custom Teflon parts the answer to your project’s needs?Severna is a leading manufacturer of precision Teflon components. Learn more about custom made Teflon parts and our manufacturing capabilities below. You’ll find out how to get the right parts for your application.
Teflon is the brand name for polytetrafluorethylene (PTFE). It’s a synthetic polymer made from carbon and fluorine. Teflon is a common material for consumer and industrial uses.
A custom made Teflon part ensures that the component meets your exact specifications. You can customize it to meet your requirements. You don’t waste time looking for parts that may not be available from a vendor. Custom parts don’t have a minimum order size. You can make a prototype or a small quantity.
After your first order, Severna has your part specifications on file. We’re ready right away when you need replacements.
Teflon parts that can be machined include:
The softness and density of PTFE make it easy to machine. However, it has some challenges like a risk of burrs and a high coefficient of expansion.
Severna is an experienced manufacturer of plastics including Teflon. We design our processes to get the best results from the material.
The properties of Teflon make it well-suited for many applications. Teflon can withstand extreme heat and cold. It’s the most chemically-resistant plastic available.
PTFE repels water and oil. It has a low coefficient of friction. It’s a good thermal and electrical insulator.
It’s very resistant to weathering.
Teflon is most familiar in the consumer market as a coating. Parts made from Teflon have uses in industries including aerospace, transportation, chemical, and medical as well as in the military.
Screw machining produces precision Teflon parts for use in many industries and applications. Our machinery includes CAM-driven Swiss screw and CNC machines. Swiss screw machining is a good option if you need small diameter custom made Teflon parts. Our CAM screw machines handle parts up to 1″ in diameter. The CNC machines handle parts up to 3″ in diameter.
A Swiss screw machine is a type of lathe. It mounts the component on a rotary slide. The slide turns, which lets the machine cut the part to your specifications.
Swiss screw machining uses a guide bushing to reduce the distance between the main spindle and the cutting tool. The workpiece has less bending and less deflection at the cutting surface. Swiss screw machining allows for very tight tolerances in the machined components.
Severna can work to manufacturing tolerances as tight as +/-.0005″.
Screw machining has many benefits for your custom parts. You have more design versatility. Very small or complicated screws are possible. We can produce part features as small as .008″. Swiss screw machines can incorporate different cutting tools. You can have different machining operations for different elements on the component.
The machine can perform several operations at once. The cycle time is faster. Our large inventory of materials helps ensure a fast turn-around for your Teflon part.
A vertical milling machine has a vertically-oriented spindle. The spindle holds the cutting tool against the workpiece while also rotating the tool.
Milling machines are complementary to lathes. Lathes rotate the workpiece to make a cylindrical cut. Mills make straight cuts by moving the workpiece into a rotating cutter. Vertical milling is well-suited for many types of components. Severna has milling machines with 3, 4, and 5 axes. Vertical milling processes include:
We offer additional capabilities like rotary tables, pallets, and high-speed machining. We can make custom work-holding fixtures to meet the requirements for your PTFE parts.
Centerless grinding is ideal for cylindrical components like rings, rollers, and pins.
Centerless grinding removes material from the outer diameter of the workpiece. A work blade supports the workpiece between the regulating wheel and the grinding wheel. The regulating wheel drives the part while the grinding wheel removes material.
Centerless grinding doesn’t hold the workpiece mechanically.
Centerless grinding can achieve perfect roundness and better straightness. It allows tighter dimensional tolerances. It can give a smoother surface polish.
These advantages only apply with proper setup of the grinding system. Severna’s experience working with PTFE ensures correct setup conditions. You get the best possible results for your Teflon part.
CNC turning is a good option for parts with revolved profiles, like bolts and washers. It’s a common choice for components with a single axis, like straight shafts, disks, and sleeves. Turning uses lathes to remove material from the outer diameter of a rotating workpiece. The workpiece moves while the cutting tool stays in place.
Severna’s turning machines have 5-axis and live tooling. This gives us extensive capabilities including:
We can design and manufacture custom turning tools and accessories to meet your needs.
When you work with Severna, you know you’re getting the highest possible quality. We inspect our parts with our Vertex Microvue Precision Measuring System as well as standard metrology equipment. Severna holds AS 9100 and ISO 9001 certification. We follow a range of industry specifications and standards including:
We’re committed to total quality management and always strive for improvement. Our goal is to provide you with the best quality and service in the industry.
Custom Teflon parts have applications in many industries. You can count on Severna for high-quality components and competitive prices. Our machining capabilities for Teflon will turn your designs into reality.
Contact us today for a quote on your custom Teflon parts.