Special-purpose machinery. Made in Germany.

STF combines welding expertise, demanding mechanical machining and the assembly of large, heavy steel components. This creates special-purpose machinery solutions for customers whose applications require precision, load-bearing capacity and reliability to work together.

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Made in Germany Manufacturing expertise for demanding industrial projects
Heavy fabrication Focus on large, heavy and complex steel components
From a single source Welding technology, machining, assembly and service from a single source

Engineering capability

Special-purpose machinery for tasks that are not off the shelf.

When components are large, heavy or particularly demanding, the interaction of manufacturing expertise, mechanical precision and robust project execution is decisive. This is where STF serves as a partner to leading suppliers in heavy and special-purpose machinery.

Heavy fabrication

Safely manage large steel components

STF handles the production and assembly of large, heavy and complex steel components with industrial process reliability.

Machining

Welding technology and mechanical machining

Welding requirements and demanding mechanical machining are planned as one integrated manufacturing task.

Project

Everything from a single source

Customers receive know-how, implementation and service from one reliable partner instead of working across many separate interfaces.

Partner

For leading suppliers in heavy and special-purpose machinery

STF works for customers worldwide and aligns production and assembly processes with demanding industrial projects.

Manufacturing expertise

Welding technology and mechanical machining run as one process.

In heavy and special-purpose machinery, quality is not determined by a single manufacturing step. Design, welding sequence, machining, handling and assembly must interlock so that complex steel components function reliably in the end.

Welding requirements Robust execution for heavy components where load-bearing capacity, dimensional stability and clean workmanship are decisive.
Mechanical machining Machining steps are planned to match component geometry, assembly sequence and the required accuracy.
Assembly of large components Complex steel components are prepared with handling, interfaces and subsequent integration in mind.
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Large welded steel assembly under overhead cranes in a production hall
At STF, heavy steel components are considered as a production and assembly task from a single source.

Portfolio excerpt

Workshop-oriented solutions for heavy and complex components.

The images are from STF Group mechanical and plant engineering and show typical project environments: steel fabrication, machining and assembly of large assemblies.

Large welded steel assembly in an industrial hall

Heavy welded assemblies

Robust steel structures for mechanical and plant engineering projects with high requirements for execution and handling.

Mechanical machining of a round steel component in a production system

Mechanical machining

Demanding machining steps are integrated into the production sequence so that component function and assembly readiness are aligned.

Large steel frame structure in a workshop hall

Assembly of complex components

Even large and difficult-to-handle components are prepared, assembled and processed as complete systems with project reliability.

Project workflow

From the requirement to the assembly-ready component.

STF combines planning, production and service in a structured workflow. This keeps technical requirements, quality and schedules transparent across the entire project path.

  1. 01

    Understand requirements

    Component, specification, material, tolerances, welding requirements and assembly logic are evaluated together.

  2. 02

    Plan production

    Welding sequence, machining, handling of heavy components and quality control are precisely coordinated.

  3. 03

    Manufacture components

    Steel fabrication, mechanical machining and assembly come together in a coordinated industrial production environment.

  4. 04

    Hand over the project

    The result is an assembly-ready component with documented quality and reliable service throughout the project.

Industrial partner

A reliable production partner for demanding mechanical engineering projects.

STF Group positions itself as a partner to leading large-scale suppliers in heavy and special-purpose machinery. The added value lies in vertically integrated implementation: expertise, production and service come from one reliable source.

Interfaces

Less friction in the project

Connected responsibilities simplify coordination, quality assurance and project control.

Quality

Precision in heavy fabrication

Mechanical machining and assembly are planned so that function, dimensional accuracy and subsequent integration are aligned.

Production area with cutting system and overhead crane in STF mechanical engineering

Heavy project, clear point of contact

Are you planning a special-purpose machine or a complex steel assembly?

Talk to STF about requirements, components, production steps and the appropriate path to implementation.

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