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Plant support – next level

S+C On-Site Services

Specialists for shutdowns, turnarounds, emergency repairs, and component replacement

During your shutdown or turnaround, you are in the best hands with us. We take care of everything – from blinding to de-blinding of your furnace.

We are your partner for emergency repairs, overhauls, maintenance and modernization of furnaces in steam cracker, steam reformers and direct reduction of iron ore (DRI) plants. Schmidt + Clemens On-Site Services support you during your shutdown. In this field, S+C has gained worldwide experience by completing more than 200 projects in 30 countries.

We're not just available to you as a general contractor, we also offer our services individually. S+C offers the specific support needed during a planned plant shutdown or turnaround, in emergency cases or within a new plant construction project. We bring our knowledge exactly where it’s needed most – into your plant.

Project Management
for Turnarounds and Shutdowns

Our project management goes far beyond just planning your projects. We offer you an extensive service package, from bidding stage until plant startup.

We are pleased to take over all disciplines such as insulation work, non-destructive testing (NDT), hanger and catalyst work, etc. We provide the necessary personnel and equipment to successfully finish the job.

Replacement of components
Fast, safe and reliable
Mechanical activities
Mechanical work at the highest level of quality
Welding supervision
Supervision of all welding work on site
Welding procedure specifications
Extensive WPS library – ready to meet your needs

What sets us apart

Practical advantages that make the difference on site

Whether as a general contractor or as a specialist – Schmidt + Clemens delivers measurable value on site. Our clients benefit from global orientation, technical precision and a project culture focused on safety, quality, efficiency and transparency.

Global network of qualified welders & specialists

We deploy exclusively experienced professionals from our international pool – quickly, flexibly and precisely where they’re needed.

Specialized tools and innovative processes

Our equipment is purpose-built for shutdown conditions – including custom welding and purging equipment, cutting systems and rigging solutions.

Solutions for exceptional and challenging projects

We are used to working on complex systems and materials under the most difficult conditions. The fact that we are usually on the critical path of a project is our daily motivation to provide you the best possible solution.

Full documentation and quality assurance

Traceable on the highest quality level – from pre-checks and WPS compliance to final inspection and handover protocols.

Why working
with Schmidt + Clemens?

More than 60 years of welding experience at the highest level of quality.

Schmidt + Clemens – Services and Advantages

Reliable solutions from the world market leader for high-alloy tube systems

Schmidt + Clemens provides the planning and execution of your maintenance activities on individual components or entire cast tube systems for steam cracker, steam reformers or DRI plants.

We are pleased to take over all disciplines: project planning and management, welding, machining, heat treatment, insulation work, non-destructive testing (NDT), hanger and catalyst work, etc. We provide the necessary personnel and equipment to successfully finalize the job.

We are the world market leader for tube systems made of high-alloyed, special materials. As a contractor, we have specialized in working on furnaces in ethylene crackers, steam reformers and DRI plants. This unique combination ensures shortest possible downtime for maximum plant availability.

Plant Support – Next Level

As a general contractor, S+C offers comprehensive carefree solutions

Plant shutdowns are complex, technical and management endeavors. They not only create high costs – shutdowns are extremely time sensitive. We strive to optimize our activities within the shutdown, reducing planned downtime and avoiding delays.

Our experts offer advice all along the way, from the planning stage to setting up the construction site to starting up the plant and putting it back into operation – day and night from the very first second. S+C is there, we ensure that you'll only work with highly qualified professionals with worldwide working experience and unique skill sets, who always focus fully on the economical and safe installation in your plant.

In addition, S+C takes care of equipment, technology and planning down to the smallest detail. With our support, your plant is in safe, experienced and competent hands during every shutdown. We develop the best solution for every situation and strive toward one singular goal – to make your plant as efficient, economical and safe as possible.

However, we're not just available to you as a general contractor, we also offer our services individually.

Try us and experience how supportive, cost-effective and reliable cooperation can be.

Project execution at the highest level of quality

More than 60 years of experience at the highest level of quality.

Dow Chemical

A tube bundle had to be replaced. This bundle was installed horizontally in a radiation zone of a furnace.

Small installation openings allowed very limited pre-assembly of the coil, only. The pre-assembled tubes and the return bends had to be introduced into the firebox individually.

This resulted in extensive lifting, welding, and testing activities.

INEOS

The project involved replacing the inlet and outlet manifolds as well as the coils connecting them. The coils were made from bent centricast tubes.

Extensive machining work had to be carried out on site before the old manifolds could be removed. This work had to be carried out with a high degree of precision to enable the new parts to be welded in the exact position.

During that time, the ongoing coronavirus pandemic placed particularly high demands on our employees.