When Should You Choose On-Site Machining?

Deciding between on-site machining and workshop repairs is a critical consideration for asset owners and maintenance teams. While workshop machining has its place, there are many situations where in-situ machining is the more practical, cost-effective, and safer option.

Understanding when to choose on-site machining can significantly reduce downtime, cost, and operational risk.

Situations Where On-Site Machining Is the Best Option

1. When Equipment Is Too Large or Fixed to Move

Large assets such as:

• Turbine casings

• Engine blocks

• Large gearboxes

• Structural components

are often impossible or extremely costly to remove. In-situ machining allows repairs to be completed without dismantling the asset.

2. When Downtime Must Be Minimized

Removing equipment for workshop repairs can take weeks once disassembly, transport, machining, and reinstallation are considered.

On-site machining:

• Eliminates transport time

• Reduces outage duration

• Enables repairs during shutdown windows

This is particularly critical in marine, oil and gas, power generation, and nuclear environments.

3. When Alignment Must Be Maintained

Removing components can introduce alignment errors when reinstalled. Line boring and flange facing carried out in situ ensures machining is performed in the component’s true operating position, improving accuracy and long-term reliability.

4. When Safety Risks Must Be Reduced

Heavy lifting and transport introduce safety risks. On-site machining:

• Reduces crane operations

• Minimises manual handling

• Limits movement of heavy components

This can significantly improve site safety.

When Workshop Repairs May Be More Suitable

Workshop machining may be preferred when:

• Components are small and easy to transport

• Extensive re-manufacture is required

• Surface treatments or processes cannot be performed on site

An experienced on-site machining provider will advise honestly on the most appropriate solution.

Why Choose Reekie Machining for On-Site Machining?

Reekie Machining has been delivering on-site machining services since the early days of the industry. With decades of experience, purpose-built equipment, and a global project history, Reekie is trusted to assess each situation and recommend the most effective repair strategy.

Clients choose Reekie Machining for:

• Proven expertise in in-situ machining

• Highly skilled on-site machinists

• Precision equipment and processes

• Experience in critical and regulated industries

Making the Right Choice

Choosing between workshop repairs and on-site machining isn’t just about convenience — it’s about cost, safety, accuracy, and downtime. For many critical assets, in-situ machining provides the fastest and most reliable route back to service.

With its pioneering heritage and modern capabilities, Reekie Machining remains the trusted choice for on-site machining solutions worldwide.