Bolting & Machining

Precision Bolting & Machining Services for Critical Assets

Our accredited specialists deliver joint integrity management, flange management, controlled bolting, ECITB training, hot bolting clamps and in-situ machining to ensure precision, compliance and asset reliability.

Contact our Bolting & Machining team

About Bolting & Machining

Our joint integrity, controlled bolting and in-situ machining team supports critical maintenance, shutdown, turnaround, and brownfield projects across onshore, offshore, and island assets. Combining specialist bolting expertise with advanced machining capabilities, we deliver precision execution where asset integrity, safety, and reliability are paramount.

Operations are governed by internationally recognised standards including ECITB and ASME PCC-1 / PCC-2, supported by digital Joint Integrity Management Systems (JIMS), three-tag tracking methodologies, and real-time project visibility. This ensures every joint is controlled, documented, and fully traceable throughout the execution lifecycle.

With one of the region's largest multi-disciplinary bolting and machining workforces and an extensive fleet of in-house equipment, we mobilise rapidly for planned and emergency scopes, providing clients with a single accountable partner for joint integrity assurance and precision machining services.

Technician performing controlled bolting on industrial flange

Bolting & Machining Capability

Our capabilities combine joint integrity management, controlled bolting and flange management, ECITB-certified workforce competency, hot bolting clamps, and in-situ machining. Together, these disciplines help operators reduce risk, improve execution quality, minimise downtime, and maintain the integrity of critical bolted connections and mechanical assets throughout their lifecycle.

Joint integrity management on industrial flange

Joint Integrity Management

Digital control and governance for every critical bolted connection, delivering improved control, reduced leakage risk, consistent execution, and complete traceability.

  • Cloud-based Joint Integrity Management System (JIMS)
  • Three-tag flange tracking and traceability
  • Real-time progress visibility and reporting
  • Dedicated Joint Integrity and QC Inspectors
  • Full audit trail from planning through handover
Controlled bolting and flange management

Controlled Bolting & Flange Management

Precision bolt loading delivered by certified technicians to ensure correct preload, prevent leaks, and support safe, consistent operations.

  • Hydraulic torquing and bolt tensioning
  • Manual and controlled bolting services
  • Flange management and joint breakout
  • Hot bolting operations
  • Offshore and subsea bolting capabilities
ECITB-certified bolting workforce training

ECITB-Certified Workforce Competency

Competency-based training and assessment aligned with international standards, reducing joint failure risk and improving execution quality.

  • ECITB-accredited training programmes
  • Competency assessment and certification
  • Workforce development for clients and internal teams
Hot bolting clamp installation

Hot Bolting Clamps

Engineered solutions enabling live bolt replacement on pressurised systems without shutdown, maintaining containment and operational continuity.

  • Live bolt replacement on pressurised systems
  • Maintains gasket compression throughout intervention
  • Designed in line with ASME PCC-1 and PCC-2 principles
  • Proven on systems tested to 1.5x design pressure
  • Standard capability up to 8-inch Class 1500 flanges
In-situ machining on industrial equipment

In-Situ Machining

Precision on-site machining to restore, modify and prepare critical equipment, reducing downtime and accelerating return to service.

  • Flange facing and serration refurbishment up to 120 inches
  • Surface milling and structural modification with laser flatness verification
  • Pipe cutting and bevelling up to 60 inches
  • Line boring and tolerance restoration up to 700 mm
  • Custom machining including 2-axis and 3D gantry machining up to 3 metres

Standards and Governance

Every activity is governed by recognised international standards, client-specific standards, competency frameworks, digital quality controls, and full audit trail processes to ensure compliance, traceability, quality assurance, and asset integrity throughout execution.

ASME PCC-1 & PCC-2 Compliant

Bolted join procedures are aligned with ASME PCC-1 and PCC-2, ensuring controlled assembly, leak prevention and integrity throughout the asset lifecycle.

ECITB-Accredited Competency

ECITB-certified technicians with ongoing assessment, practical validation and site experience verification, ensuring competency-led execution on every joint.

Client-Aligned Standards

Execution aligned with client-specific standards and frameworks, supporting consistent delivery across complex assets and operating environments.

Data-Driven Proactive Management

Cloud-based flange management with three-tag joint tracking, real-time dashboards, on-site QC inspectors, and full traceability for audits and regulatory compliance.

What Sets This Domain Apart

Multi-Disciplinary Bolting and Machining Fleet

One of the largest in-house workforces and equipment fleets in the region, enabling simultaneous multi-site execution without reliance on subcontracted equipment.

Engineering-Led Delivery

From planning through to execution, every scope is delivered with defined methodology, technical control, and a clear focus on precision and outcomes.

Customised Solutions

Flexible delivery models designed to meet project-specific requirements, supporting extended scope, non-standard conditions, and complex execution environments.

Proven Experience

Over 50 years of operational expertise delivering successful outcomes across critical industries, underpinned by strong HSE performance and execution excellence.

Connected Capabilities

Bolting and Machining is one of four core service domains within Euro Mechanical's Services Division. Many client scopes integrate our capability with complementary services to deliver safe, efficient and fully coordinated execution on complex assets.

Discuss your project with the
Bolting & Machining team.