MOSS offers a range of independent Mechanical On-Site Services to both
On- and Offshore industry. Our combination of state-of-the-art machinery,
equipment and technical expertise guarantee a high standard of work to meet clients' specific requirements

We have the capability and expertise to respond quickly, 24/7, to tight customer deadlines to all industry sectors. In addition, we have in-house manufacturing capabilities to create bespoke machinery to conduct complex projects. We have a pool of competent multi-skilled technicians who expertly deliver our services to our client base wherever the location. Our priorities are the quality of our service, the surrounding environment and the Health & Safety of our people.

Specialist On-Site Machining Services Hydraulic Bolt Tightening Services
FLANGE FACING
Heat Exchanger, Tube Bundle, Plate, Front and back faces of dome ends. Standard raised face and bolt face. Ring Type Joints (RTJ). Grayloc type hubs
PIPE END PREPARATION
Form tool & single point preparation of pipe ends prior to welding. All wall thicknesses and materials.
PIPE CUTTING & BEVELLING
Simultaneous, cutting and preparation of in situ pipe work. Re machining of In situ weld excavations. All materials and wall thicknesses.
MILLING
2D & 3D Milling, from Keyways through to large motor bases
STUD REMOVAL
Removal of seized and broken studs, including nimonic steels in turbine casings, valves, boilers and flange faces.
LINE BORING
Line Boring to tight tolerances in all applications.
DRILLING
Hole drilling - any material in any aspect, including confined spaces. Bearing housings bored and sleeved. Broken studs - removed
TAPPING
Tapping and re claiming of damaged threads in all applications.
BORING
Boring of pumps and vessels, open-ended and blind. Crane pivot pins- bushes. Engines and machinery buckets
TREPANNING
Trepanning of holes in all materials in various working aspects.
JOURNAL TURNING
Tight tolerance re works, Machining under size for; sleeving / weld overlay / metal spraying then machine back to original size.
HONING
Internal honing of cylinder and bores.
FLANGE INTEGRITY MANAGEMENT
Management of bolted flange connections during construction, maintenance and shutdown activities. Competent manpower and equipment to cover flange work life-cycle from break-out to testing
HYDRAULIC BOLT TENSIONING
Controlled hydraulic bolt tensioning of bolted connections with bolts from 3/4" to 4" diameter. Suitable for ANSI, API, Heat exchangers, Clamp connections
HYDRAULIC TORQUE WRENCH
Direct fit and square drive hydraulic torque wrenches to suit 1/2" to 4" bolt diameter.
NUT SPLITTING
Hydraulic nut splitting equipment to suit 3/4" to 4" bolt diameter
FLANGE SPREADING
Hydraulic flange spreading equipment capable of generating 15.5 tons force
TRAINING
In house and on site training services
TECHNICAL AND ENGINEERING SUPPORT
"24hr Workshop" Supporting our on-site capability and rental product customers
Engineering Support
CAD & IN HOUSE MANFACTURE
Application specific research, design and manufacture of purpose built portable machine tools and ancillary equipments
Spark Erosion Services
SPARK EROSION
Stud removal of Broken Taps and Drills using EDM techniques.