Technical Translation Services for Plant Engineering
Specifications, process descriptions, commissioning and service documentation for international plant engineering projects - consistent across all project phases, suppliers and target markets.
EPC experience – Multi-supplier terminology – ISO-certified processes – International standards
For almost 20 years, we have been supporting plant engineering companies, EPC contractors and engineering service providers with professional translations – from the tender phase and detail engineering through commissioning and service throughout the entire plant lifecycle. Our strength lies in maintaining consistent terminology, even when multiple suppliers, project phases and target languages are involved.
Who We Work With in Plant Engineering
This page is intended for professionals who need to provide plant documentation in a process-reliable manner and ensure its usability across international markets – often over many years, multiple project phases and involving numerous stakeholders.
- Engineering / Detail Engineering – specifications, technical requirements, calculations
- Project Management / EPC Contractors – multilingual project documentation, status reports
- Commissioning & Service – commissioning records, training materials, service manuals
- Compliance / HSE – safety documentation, audit reports, communication with authorities
- After-Sales / Lifecycle Management – maintenance plans, spare parts documentation, modernization projects
Request a Quote or Speak to Our Team
Do you need technical documents translated? Send us one or two sample files, and we will provide a concrete recommendation and a quotation within 24 hours.
Typical Document Types in Plant Engineering
| Document Type | Typical Purpose | Quality Focus | Typical Outcome |
|---|---|---|---|
| Specifications / Requirements specifications | Project definition, tendering | Clear requirements, standardized terminology | Binding specifications for all stakeholders |
| Process Description / P&ID | Process documentation, engineering | Technical precision, consistency of symbols and terminology | Consistent process logic across all languages |
| Commissioning Records | Handover amd acceptance in the target market | Traceability, legal clarity | Legally reliable acceptance documentation |
| Service and Maintenance Manuals | Operation and maintenance over many years | Practical usability, ease of updating | Long-term usable service documentation |
| SCADA / Process Control System Texts | Operating logic, alarms, notifications | Context awareness, character restrictions, consistency | String-accurate and operationally reliable user interfaces |
| Audit and Compliance Documentation | Regulatory authorities, certification bodies, HSE requirements | Compliance with standards and regulatory requirements | Audit-ready and compliant documentation |
| Training and Educational Materials | Operator training, service training | Clarity, didactic structure and visual comprehensibility | Training materials that are ready for immediate use |
Safety, Standards and International Compliance
Large plants are built and operated in varying legal and regulatory environments. Their documentation must be not only linguistically correct, but also comply with the applicable standards and regulatory requirements of the target country throughout the plant’s entire lifespan.
This is especially important for safety-relevant documentation (such as explosion protection, pressure equipment, or functional safety) where normative precision, terminology fidelity, and traceability are an. Terms such as ‘Zone 1’, ‘SIL 2’, or ‘PED Category III’ are not stylistic choices; they are legally relevant. You can read more about this in our blog.
ⓘ Please note: Depending on the specific application, plants installed within the EU are subject to regulations such as the Machinery Directive 2006/42/EC, the Machinery Regulation (EU) 2023/1230 and the ATEX Directive 2014/34/EU. Outside the EU, country-specific standards may apply (e.g. ASME, GB, GOST).
Quality and Processes: ISO-Certified Workflows, Multi-Supplier Terminology and Long-Term Consistency
Plant engineering projects have three characteristics that make translation more demanding than for individual machines: multiple suppliers deliver partial documentation that needs to fit together. Projects run for years, with documentation updates at every phase. And the plant often remains in operation for over 20 years, requiring continuous updates to the service documents.
We combine qualified specialised translation with a process that is aligned to these exact requirements: terminology setup at the start of the project, translation memory for consistency over years, revision according to the four-eyes principle and, where appropriate, AI-assisted translations and post-editing for high volumes.
All certifications and quality credentials from COMLOGOS →
| Project situation | Recommendation | Why |
|---|---|---|
| Requirement specifications, specifications and contracts during the bidding phase | Specialised translation + revision (ISO 17100) | Maximum legal and technical clarity as the foundation for project execution |
| Engineering and process documentation during the project phase | Specialised translation + terminology setup + TM | Consistency across all suppliers and disciplines, reusability in later phases |
| Sehr hohe Wortmengen (z. B. komplette Servicedokumentation), kurze Deadline | AI-assisted translations + post-editing (ISO 18587) + QA | Scalable for high volumes, controllable quality and cost optimisation |
| Service and maintenance documentation over the plant lifespan | TM-based update workflows and terminology maintenance | Consistency over years, fast and cost-effective updates for modernisations |
| Safety and compliance documentation (ATEX, PED, SIL) | Specialised translation plus revision by a technically qualified translator | Normative accuracy, audit readiness and legal robustness |
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Learn moreLanguages and File Formats
Construction projects for plants are rarely in a single language: engineering work is usually in German or English Englisch, operating instructions are in the language of the operating country and service texts are often in multiple languages. For large international projects, we often work with Chinesisch, Russisch oder Spanisch for Latin American markets. Our team of experts specialising in plant engineering and process technology can deliver translations into all relevant world languages.
| Input / format | Typical content | Note: |
|---|---|---|
| Word / Excel | Requirement specifications, specifications, reports QA: figures, units, consistency | QA figures, units, consistency |
| InDesign / IDML | Service manuals, training materials | Layout check after translation |
| FrameMaker / MIF | Long technical documentation | Structure, variables and cross-references remain intact |
| XML / DITA / CCMS exports | Modular plant documentation, reuse | Ideal for updates over the plant lifespan |
| AutoCAD / DWG texts (extracted) | Circuit diagrams, P&ID, layout plans | Translation via extracted text files, controlled reintegration |
| COMOS / SmartPlant exports | Engineering-Datenbanken, P&ID | Structured handover via export and reimport into the system |
| UI strings (CSV / JSON / SCADA exports) | Operating texts, alarms and messages for process control systems | Context check, length restrictions, special character handling |
| PDF / reference material | Regulatory correspondence, legacy documents, references | Usable as a reference; translation from an editable format |
ISO 9001, ISO 17100, ISO 18587, tekom membership and LICS certification demonstrate independently verified quality standards for multilingual technical documentation.
In plant construction, audit and compliance requirements are part of everyday business. This is why we consistently work in line with certified processes, , which means traceable quality, documented procedures and qualified resources for every project.
- Qualified translators: native speakers with a background in plant engineering, process technology or engineering
- Documented project management: traceable procedures and transparent communication at every stage of the project
- Four-eyes principle: revision by a second qualified translator accordance with ISO 17100
What Our Clients Say About COMLOGOS
As one of the world's leading companies in the demanding field of impregnation and drying of electrical components, we work with COMLOGOS for our translation needs. Our collaboration with COMLOGOS and their translations is characterised by high quality and consistently reliable delivery times.
Our manuals now speak the right language worldwide, thanks to COMLOGOS's precise and reliable translations. A real asset for our international presence!
FAQs about Plant Engineering Translations
Throughout the different project phases, translation requirements vary considerably. During the tendering phase, specifications and contracts are common. In engineering, process descriptions and technical specifications are often required. Construction and commissioning involve records, training materials and correspondence with authorities, while operation and maintenance rely on service manuals and maintenance instructions. Safety, compliance and SCADA-related documentation frequently complement these document types.
At the beginning of a project, we establish a central glossary and translation memory that are accessible to all relevant disciplines and suppliers. This ensures that terminology remains consistent throughout the entire project – regardless of which supplier delivers a specific document. The result is greater clarity, fewer misunderstandings and reduced coordination effort during commissioning.
Plant engineering projects often span several years. We maintain translation memories and terminology databases that grow continuously throughout the project lifecycle. Previously approved translations can therefore be reused efficiently, helping to save time and costs while ensuring that engineering, commissioning and service documentation remain linguistically consistent.
Typical documents include operating and maintenance manuals, safety and warning information, commissioning records, training materials for local operators, as well as documentation required by regulatory authorities or for audits. Depending on the country and type of plant, additional compliance-related documentation may also be necessary (e.g. pressure equipment, explosion protection or food safety documentation).
Industrial plants are often operated for 20 years or more, with regular modernizations, expansions and updates to service documentation. We continuously maintain translation memories and terminology databases to ensure that every update can be implemented quickly, consistently and cost-effectively in all relevant languages.
English remains the dominant language of engineering, while German plays a central role within the DACH region. Depending on the project location, Chinese, Russian, Spanish, Portuguese, French and Arabic are also frequently required. In large international projects, documentation is often translated into five to ten languages simultaneously.
Pricing depends on several factors, including word count, the amount of repeated content (translation memory leverage), the complexity and safety relevance of the material, the required file preparation effort and the desired level of quality assurance (e.g. revision, terminology management or post-editing). In long-term projects, the initial setup of translation memories and terminology resources often pays off across subsequent project phases.
Ideally, provide one or two sample files from your current project phase, such as specifications, process descriptions or service documentation. Please also indicate the required target languages and provide the available source formats (e.g. Word, InDesign, XML or CCMS exports). If available, existing terminology lists or glossaries are also helpful.
Planning a Multilingual Plant Engineering Project?
Please send us 1–2 sample files from your current project phase—such as a requirements specification, a procedure description, or a service document. We’ll recommend the best approach and a suitable language strategy for your target markets, and provide you with a clear, no-obligation quote—including a plan for reusing content across all project phases.
Response usually within one business day · Confidential handling of your files · Free of charge and without obligation

