Assembly Capabilities


A 50 Square metre Class (6) 1000 Clean Room Facility.

Assembly & Test.

Located between our High Precision Machining Centres and Toolroom facilities, its position allows for seamless transfer of parts from manufacturing to assembly. The BS EN ISO 14644 Class 6 (1000) Clean Room Facility is tempareature, pressure, humidity and particulate contaminant controlled to levels well within its class.

The facility is equipped with a helium leak test machine, nitrogen gas supply, component vacuum packing and computer management fully encorporated into our system, as well as ultrasonic cleaning tanks in a supporting clean area.

Occupying over 50 sq m, this facility has been designed to handle the changing requirements and expansion needs of our customers for the forseeable future. This unit is highly suited to the assembly and testing of precision laser sub assemblies as well as complex space and medical components.

To ensure total quality, our people have been trained to the highest level, with accreditation fully recognised by the Scottish Society for Contamination Control and the Clean Room Industry Board. This includes operators, maintenance and quality staff, who have the knowledge and skills to maintain, audit and utilise this facility in accordance with stringent operating procedures.


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Castle Precision are a high quality turnkey supplier of complex machined components and assemblies to leading multinational customers in the high tech sectors of Europe and North America.

Our Virtual Factory Tour displays one of the foremost independent production facilities in Europe and the range of capabilities available to our customers.

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60 years of Castle

Castle’s 60 for 60 is a series of activities, events and initiatives to celebrate our 60th Anniversary and mark our commitment to customers, staff, suppliers and the community.

60th Anniversary

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History & Heritage

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Plant List

Plant List

Castle is able to offer a comprehensive solution to all of your machining requirements and has a sustained programme of investment into the latest machine tool technology.

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