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CNC Machining.

Machined components are produced in-house. Flanges, covers, sealing surfaces and connection details are machined to the tolerances that oil-tight transformer construction requires.

In-House Machining Sealing Faces Customer-Specified Features
A TSY operator at the control panel of a CNC milling machine cutting a steel part under coolant
Stage 03 · Machined components

Sealing faces that seat on assembly

Machining covers cutting, drilling, threading and boring operations, including custom thread patterns, grooves and bores specified by the customer.

Sealing faces are machined so that gasketed joints seat correctly on assembly. On a transformer tank this is not a cosmetic detail: the tank has to stay oil-tight for the service life of the transformer inside it.

Keeping machining in-house means machined parts and welded assemblies are planned together rather than coordinated across suppliers, which shortens the path between a design change and a finished part.

Machined features are inspected with measuring equipment before parts move to assembly.

  • Cutting, drilling, threading and boring operations in-house
  • Custom thread patterns, grooves and bores to the customer specification
  • Machined features measured before assembly
A gloved operator measuring a machined flange with a digital caliper
Before assembly

Measured before it moves

A machined flange is finished when it seats on the assembly it was made for, not when it leaves the machine.

Machined features are measured before parts move to assembly. A dimension corrected on the bench costs far less than the same dimension found on a welded tank.

Because machining and welded fabrication are planned together rather than coordinated across suppliers, a machined flange and the assembly it seats on are prepared as one job.

Thread patterns, grooves and bores that the customer specifies are produced to the drawing supplied with the order, and the same drawing is what the measurement is checked against.

Around the machine shop

Where machined
parts come from
and go.

Machining sits between the documentation that defines a part and the assembly that receives it.

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Technical Preparation

The drawings supplied with the order are reviewed for manufacturability and turned into the documentation machining works from.

Technical preparation

Welded Fabrication

Machined components are welded into the tank body together with plates, stiffeners and flanges.

Production processes