Custom machined PTFE, PEEK and metal sealing rings and gaskets

Drawing-Based Sealing Components

Custom Machined Seals and Gaskets

Upload your drawings for a quote on custom seals and gaskets machined from engineering plastics or metals to your dimensional and inspection requirements.

  • Made to Drawing
  • Plastics and Metals
  • От прототипа до повторных заказов
  • Inspection by Agreement
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Типы продукции

Custom seals and gaskets type

Non-standard sealing parts manufactured for valves, pumps, fluid systems, vacuum equipment and industrial assemblies.

Custom machined stepped sealing ring
01

Sealing Rings

Round, stepped and grooved rings made to defined diameters and mating dimensions.

Custom machined flange gasket with bolt holes
02

Custom Gaskets

Flat, flange and irregular gaskets with custom profiles, holes and thicknesses.

Custom machined metal valve seat insert
03

Valve Seats and Inserts

Machined seats and sealing inserts for valves, pumps and fluid-control assemblies.

Custom machined split backup ring
04

Backup Rings

Support rings that help maintain seal position and reduce extrusion into clearance gaps.

Custom machined wear and guide ring
05

Wear and Guide Rings

Support components that guide piston or rod assemblies and help limit metal-to-metal contact.

Custom machined insulating seal and spacer
06

Insulating Seals

Custom parts combining sealing with electrical isolation or spacing functions.

Выбор материала

Materials Matched to Operating Conditions

Material selection should consider the contact media, temperature, pressure, motion, wear and mating components. Final suitability must be confirmed against the actual application.

ПТФЭ и ПТФЭ с наполнителем

Often selected for chemical resistance and low friction. Creep and thermal expansion must be considered.

  • Виргинский ПТФЭ
  • Модифицированный ПТФЭ
  • С стеклонаполнителем
  • Carbon-Filled
  • Bronze-Filled

Инженерные пластики

Options for strength, wear resistance, dimensional stability, insulation and chemical compatibility.

  • PEEK
  • POM
  • ПВДФ
  • PCTFE
  • UHMW-PE
  • PA / нейлон

Металлы

Used for metal gaskets, support rings, spacers and structural sealing components.

  • Нержавеющая сталь
  • Алюминий
  • Медь
  • Латунь
  • Бронза

Экспертиза проекта

Details That Affect Fit and Sealing

Reliable sealing starts with clearly defined mating dimensions, operating conditions and acceptance criteria.

Weldo reviews manufacturability against the drawing. Final sealing performance and application validation remain the customer’s responsibility.

01
Operating Conditions and Motion

Identify the media, temperature, pressure and whether the seal is static, reciprocating or rotary.

02
Gland, Mating Dimensions and Clearance

Define shaft, bore, groove, compression target and extrusion gap.

03
Critical Geometry and Sealing Surfaces

Specify diameters, thickness, datums, roundness, flatness, finish, chamfers and radii.

04
Material Movement and Inspection

Account for creep, recovery, moisture and thermal change, with conditioning requirements stated where needed.

Механическая обработка и контроль качества

Control the Features That Matter

Weldo uses CNC turning, CNC milling, multi-axis machining and supporting processes to produce drawing-defined sealing components.

Our ISO 9001 quality system supports drawing review, material-document checks, first-article inspection, in-process checks and final inspection.

Drawing and Quality Review

  • Critical dimensions and datum structure
  • Material grade and supporting documents
  • Контроль первой единицы продукции и контроль в процессе производства
  • Final reports agreed during quotation

Achievable tolerances depend on material, geometry, wall thickness, workholding and inspection method.

Обзор проекта

Request a Quote for Custom Machined Seals

Send your drawing, material requirements and operating conditions. Our team will review the part and confirm an appropriate machining and inspection route.

  • Drawing or 3D model
  • Материал и количество
  • Operating conditions
  • Требования к осмотру
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Вопросы по проекту

Часто задаваемые вопросы

Key information for sourcing drawing-based sealing components.

Can you manufacture a seal from a sample?

A sample can support the initial review, but production requires an approved drawing with defined dimensions, material and acceptance criteria.

Which material is best for a machined seal?

The correct material depends on the media, temperature, pressure, motion, wear and mating structure.

What tolerances can you achieve?

Tolerances are confirmed after reviewing the material, size, wall thickness, geometry and inspection method.

Do you manufacture rubber O-rings?

This page covers CNC-machined plastic and metal sealing components. Molded rubber O-rings are outside this stated machining scope unless separately confirmed.