Precision machining on your site
Minimize downtime, maximize continuity
When a system shuts down, costs and risks can quickly mount up. Especially with large systems, disassembly, transport, and overhaul in a workshop can be time-consuming, complex, and costly—or even impossible.
On-site machining offers the solution. EMHA performs precision machining directly on-site, without dismantling critical components. With mobile machines and experienced specialists, we bring the workshop to you.
This allows installations to remain in operation as much as possible and minimizes downtime. This makes on-site machining ideally suited for situations where speed, availability, and safety are crucial.
Flange facing
Circular milling
Line boring
Milling
Drilling & tapping
Lathing
Precision machining under all conditions
Working on-site requires more than just machinery. It requires flexibility, craftsmanship, and quality control under varying conditions.
EMHA has advanced mobile machining systems and its own 3D department for precise alignment. This allows us to achieve tolerances that are normally only attainable in a workshop.
Typical applications include:
- Repair of wear or damage to critical components
- Machining of large or hard-to-reach parts
- Alignment and overhaul without disassembly
Our approach is tailored to the situation: we work safely, efficiently, and with minimal impact on your operations.
Quick and effective resolution of technical issues
Many situations requiring on-site machining are time-sensitive: damage, breakdowns, or maintenance on equipment that cannot be shut down.
EMHA is equipped to respond quickly, worldwide and 24/7 when needed. We analyze the situation on-site and determine the most effective machining approach, tailored to the technical and operational context.
The result:
- Less downtime and lower costs
- Quick return to operational status
- Sustainable repairs within specifications
From emergency repairs to scheduled maintenance: we ensure that your equipment is back up and running as it should be.
What others are saying
“EMHA provides high-quality alignment, machining, and 3D measurement services. Always on time and to the full satisfaction of everyone involved.”
Our machines
Circular milling
With our face and circular milling machines, we can perform milling operations on diameters ranging from 45 to 315 inches (Ø1100 – Ø8000 mm). We machine all types of materials, from steel and stainless steel to high-tensile steel.
Boring & tapping
Our compact drilling machines are ideal for operations that require drilling holes up to 2.5 inches (63.5 mm) in a single pass. With these drilling and tapping machines, which range from small to large, we can drill and tap holes of various diameters up to M76 and depths up to 350 mm. We can drill, spot face, tap, ream, and hone.
Flange facing
Whether it involves machining the raceways or running surfaces of roller bearings, or re-facing a worn pipe flange: thanks to our wide range of durable and portable flange machining machines, we can machine diameters ranging from 45 to 335 inches (1143–8500 mm). The machines are equipped with a head that can rotate 360 degrees and on which, depending on the diameter or the required specifications, a milling cutter or a single-point cutting tool can be mounted. Thanks to their rigidity and ease of positioning, these machines do not compromise on accuracy, whether they are used in a horizontal, vertical, or inverted position.
Lathing
Whether you’re milling O-ring grooves, repairing turbine shafts, or correcting an out-of-round gear seat on the shaft of a high-speed production machine, our portable lathes let you get the job done. Our lathes can be bolted to the end of a shaft to machine shafts and roller bearings with diameters ranging from 1.5 inches to 24 inches (38 to 610 mm). For shafts ranging from 1.5 inches to 24 inches (38 to 610 mm), the lathes can be clamped onto the shaft. Some of our lathes allow for machining in spaces with a radial clearance of 7 inches (177.8 mm). Thanks to their high power and simple setup, on-site turning can be performed with an accuracy of 0.03 mm, regardless of the diameter.
Line boring
Perfectly straight boring of propeller shafts, stern gearboxes, gearboxes, bridge pivot points, and bearing housings. Our line of portable boring machines is suitable for diameters ranging from 1.375 to 80 inches (35 to 2030 mm), with the precision of stationary machines. The use of mounting brackets, spherical bearings, self-centering mounting cones, a movable rotary drive, and a feed unit enables quick and easy setup. This allows the tools to be used at various locations, even in confined spaces. The ability to mount various face-milling tools directly onto the line boring machines enables us to machine an axial face quickly and with extreme precision. Our face-milling tools support axial face machining up to 35 inches (2030 mm).
Milling
When structures involve critical surfaces such as guardrails, foundations, or grooves, a straight and perpendicular surface is absolutely essential. To achieve this, we have highly versatile, portable (CNC) milling machines. These machines can process large surfaces, with an X-axis travel of up to 473 inches (12,000 mm) and a Y-axis travel of up to 24 inches (609.6 mm) in a single setup. The machines can be set up in various positions, from horizontal to vertical or even upside down. Thanks to the spindle’s high torque for rapid material removal and the ability to mill in virtually any position, we can guarantee a high level of fit and finish.
What else would you like to know about on-site machining?
Using modern equipment and alignment techniques, we achieve tolerances comparable to those found in a workshop setting.
These include shipping, offshore, industry, energy, and civil engineering, among others.
In cases of wear, damage, or maintenance on large components where disassembly is difficult, risky, or costly.
Yes, EMHA operates worldwide and can respond quickly to both scheduled maintenance and emergencies.
Yes, in urgent situations, we can scale up quickly and provide on-site support immediately.
Want to contact an expert directly?
Raymond Scholtz
Need help or advice?
Together we provide clarity, priority and a clear plan of actio