Custom rings from electrical-insulation materials
We manufacture sealing, insulating, and structural rings to customer drawings.
The main method is CNC turning. Precision up to 0.01 mm on individual diameters and ring height is confirmed after review of the material, size, wall thickness, and drawing requirements.
Product photos
Which rings we make
We make rings with outer and inner diameters, chamfers, grooves, steps, flanges, and specified height. For thin-walled and large-diameter rings we separately verify possible machining deformation.
PTFE rings are chosen for chemically resistant seals; glass-textolite and EPGC — for electrical insulation; cast nylon and textolite — for structural and antifriction tasks.
Technical parameters
| Parameter | Value |
|---|---|
| Method | CNC turning |
| Diameter tolerance | Up to 0.01 mm on selected dimensions after drawing review |
| Outer diameter | From [to be specified] to [to be specified] mm |
Materials
| Material | Grades | When to use |
|---|---|---|
| PTFE | Ф-4, PTFE | Seal rings in aggressive environments; mind mechanical limitations |
| Glass-textolite | STEF, EPGC | Insulating rings in electrical equipment units |
| Cast nylon | PA-6, PA-6-MO | Structural and anti-friction rings |
| Textolite | A, PT, PTK | Structural rings and friction elements |
Where they are used
Rings are used in hydraulic and pneumatic systems, pump equipment, transformers, motors, electrical-insulation nodes, and machine building. For sealing rings it is important to specify the environment, temperature, pressure, and requirements for mating surfaces.
Quality control
- outer and inner diameters;
- height;
- flatness and parallelism of end faces if specified;
- grooves, chamfers, collars;
- surface quality.
Send drawing for a quote
If marked as urgent, we reply within 6 hours during business hours. If you submitted after 5 pm, the quote comes in the morning.