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  • About us
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  • Grinding machines
    • Portable grinding machine for flat seats (VALVA)
    • Grinding machine for conical seats (VSK)
    • Grinding machine for lens seats (LS)
    • Portable Gate Valve Grinding Machine (SL)
    • Portable machine for high speed grinding (HSL)
    • High speed precision grinding machine (VSA)
    • Grinding table for machine and fitting parts (KS)
    • Grinding machine for safety valves (TSV)
    • Grinding machine for sealing seats (stationary) (SM)
    • Grinding consumables
  • Lapping machines
    • Lapping machine for flat seats (VALVA)
    • Transportable gate valve lapping machine (SL)
    • Lapping machine for safety valves (TSV)
    • Lapping Machine (stationary) for sealing seats (SM)
    • Stationary flat lapping machine (FLM)
    • Lapping consumables
    • Stationary ball lapping machine (ROTAGO)
  • Lathes
    • Portable lathes
      • Portable lathe (TD)
      • Portable lathe for cutting out valve seats (ASM)
      • Portable Flange Turning Machine (TDF)
      • Portable Flange Lathe (TDFI)
      • Portable lathe (TD CNC)
      • Portable flange lathe (TDF CNC)
    • Stationary lathes for fittings
      • Stationary Lathe (PDM)
      • Stationary Lathe (SPM)
    • Flange turning machines for fittings
      • OD mounted flange facer (TDF)
      • ID mounted flange facer (TDFI)
      • Flange lathe (TDF CNC)
    • CNC lathes for machining fittings
      • CNC controlled portable lathe (TD CNC)
      • CNC-controlled flange facer (TDF CNC)
      • CNC lathe (PDM)
      • CNC lathe (SPM)
  • Valve test benches
    • Custom made test benches
    • Accessories for test benches
    • Valve test benches with vertical clamping
      • Vacuum testing device for ball valves K-TEST
      • PS-T/SV-5 valve test bench
      • PS-T 10.03 valve test bench
      • PS-15 to PS-200 valve test benches
      • Vertical test benches in modular design
      • Vertical test benches in modular design for safety valves
    • Valve test benches with horizontal clamping
      • PS-H10 valve test bench
      • PS-H10 UW Valve test bench
      • PS-H7.5 to PS-H1500 Valve test benches
      • Horizontal test benches in modular design
  • More
    • Abrasives and lapping compounds
    • EFCO Rental
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    • Mobile workshop
    • More products from EFCO
    • EFCO technology with battery drive
    • Transportable circular welding machine (CW-1000)

Grinding machines for valves

  • Grinding machines

Grinding machines for advanced valve processing

EFCO's portable and stationary grinding machines for valves are suitable for a wide variety of sealing surfaces, valves and housings.
Our grinding machines can be used to repair and optimize the surfaces of fittings. Another area is surface lapping. While our grinding machines work with a firmly bonded abrasive grain, lapping uses an unbonded abrasive grain to reduce the surface roughness. This allows you to achieve a very high surface quality with shape and dimensional tolerances of just a few micrometers with the lapping machines.

Grinding machines are the key to precise valve machining. A high-quality valve grinding machine ensures that sealing surfaces fit exactly and remain durable. Transportable valve grinding machines are ideal for mobile applications, as they can be used directly on site. This saves time and minimizes downtime.

If you regularly process large components, you should use a stationary grinding machine. It enables consistent results under high loads. Particularly fine work requires a precision sanding machine that compensates for even the smallest unevenness. A robust stationary belt sander is suitable for demanding surface processing.

For even more flexibility, high-quality machines are available for hire. This allows companies to use the latest technology without having to make large investments. Whether you buy or rent, you will find the right solution for your requirements with us. Sanding machines for maximum precision and efficiency are available at all times.
VALVA Series
Transportable valve grinding machines for flat seats
Transportable valve grinding machine for flat seats
VSK Series
Transportable valve grinding machines for conical seats
Portable valve grinding machines for conical seats
LS Series
Transportable valve grinding machines for lens seats
Portable valve grinding machines for lens seats
SL Series
Transportable slide grinding machines
Portable gate valve grinding machines
HSL Series
Transportable machines for high-speed grinding
Portable machines for high-speed grinding
VSA Series
High-speed precision grinding machines
High-speed precision grinding machines
KS Series
Grinding tables for surface grinding
Grinding tables for surface grinding
TSV Series
Grinders for safety valves
Grinding machines for safety valves
SM series
Stationary sanding machines
Stationary grinding machines

Portable grinding machines

Portable lapping and grinding machines are above all required for grinding and lapping valves. They ensure flat sealing surfaces in valves as well as on valve discs and flanges. Our mobile grinding machines are characterized by their convincing concept: They are easy to operate and low-wear with a very favorable price-performance ratio. You will achieve high efficiency and profitability with these lapping and grinding machines. The drives work electrically (with 230 or 120 V and 50/60 Hz) or pneumatically.

Portable gate valve grinding machines

Grinding machines must not only work precisely, but also be flexible in their use for processing sealing surfaces. Transportable grinding machines offer maximum flexibility and precision. Transportable slide gate grinding machines (SL) have been specially developed for grinding and lapping slide gate wedges, slide gates, non-return valves and flanges. The contact pressure can be precisely regulated using an optional digital rocker. This patented unit ensures consistent results.

The swing check adapter is an ideal addition for non-return flaps with a large angle of inclination. Those who need to process particularly hard seat surfaces rely on the HSL transportable valve grinding machine with high-speed driven spindles (SLA). This solution enables fast and effective material processing.

The machines are easy to set up and dismantle. A specially developed clamping block facilitates assembly. You can also obtain this technology at short notice from our rental department. Whether precision grinding machine or valve grinding machine, with the right tools you can achieve perfect results with maximum efficiency.

Stationary grinding machines

Grinders are an indispensable part of precision metalworking. Stationary grinding machines offer maximum stability and precision for workshop use. The KS grinding table is ideal for surface grinding valve disks, valve wedges and other components. The workpiece guide remains precise thanks to the fixed stop. The aluminum sanding plates can be fitted with self-adhesive sanding paper discs.

The SM series impresses with its well thought-out concept. This stationary sanding machine has a particularly robust and modular design. A second tilting or rotary table can be retrofitted at any time. This allows the machine to be adapted to changing requirements.

Portable sanding machines are a flexible addition for those who want to work on the move in addition to stationary solutions. Precision surface grinders are the best choice for extra precision. Our rental service allows you to use modern sanding machines at short notice. This ensures the best results with maximum efficiency.

Grinding machines for lens seats

Grinding machines are indispensable for precise lens seats. If you need to grind metal pipe ends with 140° lens seals in accordance with DIN 2696 and BASF, we offer portable grinding machines. These can be centered quickly and enable high-quality repairs with high efficiency.

Our valve grinding machines are electrically or pneumatically operated and designed for DN 8-DN 200 (1/4"-8"). If you are looking for a permanent solution, you can also use a stationary grinding machine. Precise results can also be achieved with a precision grinding machine.

For maximum flexibility, we also offer a rental service. This gives you access to modern sanding machines at any time without having to make a long-term investment.

Grinding machines for grinding conical sealing surfaces

Grinding machines are ideal for the precise grinding of conical sealing surfaces. We offer mobile machines with special tools that have been specially developed for shut-off, high-pressure and control valves. Our portable grinding machines can be used to precisely machine angles between 30° and 90°.

A stationary grinding machine is suitable for stationary applications, guaranteeing maximum precision. If you require particularly fine surfaces, you can use a precision grinder. If other seat angles are required, we will be happy to advise you on individual solutions.

We also offer a rental service so that you can use the latest sanding machines flexibly. Our focus is always on efficiency, quality and ease of use.

Grinding machines for safety valves

Grinding machines are crucial for the machining of safety valves. With the EFCO TSV, we offer a portable grinding machine equipped with an eccentric. This enables precise lapping and grinding of sealing surfaces.

Thanks to two separate drives, the machine produces an absolutely flat surface with an intersecting grinding pattern. Stationary users can also use a valve grinding machine or a precision grinding machine. Both variants deliver exact results for the highest safety requirements.

Our rental service is available for flexible applications. This gives you access to high-quality grinding machines without having to make a long-term investment. This keeps your processing efficient and precise.

Concrete application example of our grinding machines

Grinding machines are crucial when it comes to the tightness of valve surfaces. By grinding and lapping, our machines ensure smooth surfaces that guarantee a tight seal - even at high pressures and temperatures in power plants or the chemical industry.

Valve grinding machines that deliver precise results are particularly efficient. A stationary grinding machine is suitable for workshop work, while portable grinding machines can be used directly on site.

If you need a solution at short notice, you can use the latest grinding machines through our rental service. This allows you to remain flexible and reliably achieve the best results for demanding machining tasks.

Where to rent a grinding machine?

Professional sanding machines are rarely available as a standard solution. Special adaptations and additional accessories are often required to adapt the machines optimally to the respective requirements.

With our rental service, you can rent an EFCO sanding machine. With our grinding machine rental service, you can use the latest grinding technology and see the high precision and performance of our machines for yourself.

We offer the rental of EFCO grinding technology, EFCO turning technology and EFCO testing technology. This allows you to remain flexible and rely on proven quality for your machining processes.
Do you have questions about our products?
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Questions and answers about grinding machines and grinding

Which grinding machines are suitable for processing fittings?

Grinding machines are indispensable when it comes to the precise machining of valves. Stationary and portable valve grinding machines in particular ensure exact sealing surfaces and perfect function. Stationary grinding machines that ensure maximum precision are ideal for stationary work. Mobile applications require transportable grinding machines that can be used flexibly on site.

Precision is crucial for fittings. This is why precision grinders are required to achieve fine surfaces. A good grinding machine processes different materials efficiently and reliably. With a high-quality stationary grinding machine, repeatable results can be achieved.

The choice of the right machine depends on the application. While a stationary belt sander ensures robust processing, sanding tables provide a stable work surface. If you are looking for durable and powerful sanding machines, we have the right solution for you.

What are the advantages of using mobile sanding machines?

Sanding machines are indispensable in many areas. Mobile models offer a major advantage because they can be used flexibly. In contrast to stationary sanding machines, they can be used directly on site. This saves time and reduces downtime.

A mobile grinding machine enables precise machining without the need to transport heavy components. Mobile machines are an efficient solution, especially for large fittings. They are handy and easy to operate without compromising on performance.

While a stationary grinding machine is ideal for series work, mobile versions offer maximum flexibility. A compact grinding machine can also be used as a mobile unit to machine valve seats quickly and accurately. For particularly fine work, a precision grinder is ideal for achieving exact results on the move. If you need quality and mobility, mobile sanders are the perfect solution.

How do you extend the service life of grinding machines?

Grinders are robust tools, but good maintenance is crucial for a long service life. Regular cleaning removes dust and deposits that can affect the mechanics. Stationary sanders in particular quickly collect sanding dust, which can block moving parts.

Controlled use ensures that the machine is not overloaded. A stationary sanding machine should always be operated with the correct abrasives to avoid unnecessary wear. Re-clamping components also increases precision and extends the service life.

With a precision grinding machine, exact adjustment of the guides is important to ensure consistent results. High-quality lubricants prevent friction and protect the machine from wear. Anyone using a precision surface grinder should ensure regular maintenance. This will ensure that the machine remains reliable and works precisely and efficiently for years to come.

Which grinding machines are suitable for valve seats?

Grinding machines are suitable for machining valve seats. Precise technology is required to ensure that sealing surfaces fit perfectly. Valve grinding machines ensure exact surfaces and prevent leaks. Transportable valve grinding machines for flat seats are particularly efficient, as they can be used directly on site. This saves time and facilitates the maintenance of large components.

Anyone who regularly works on valve seats should use a stationary grinding machine with high precision. These machines guarantee consistent quality and are optimized for continuous use. A precision grinding machine enables fine adjustments to be made so that the valve seats seal precisely.

Grinding tables also provide a stable work surface for exact results. Precision surface grinders are a reliable choice for more specialized tasks. If you are looking for durable and efficient grinding machines for valve seats, you will find the right solutions for maximum precision here.

What is the difference between manual and automatic sanders?

Sanding machines are available in manual and automatic versions. Both variants have their advantages. A manual sanding machine offers full control over the sanding process. They are particularly indispensable for custom-made products or special adaptations. Those who want to work flexibly often opt for portable sanding machines that can be easily adapted to different components.

Automatic precision sanding machines, on the other hand, work with high repeat accuracy. They ensure consistent results and save time, especially in series production. A stationary grinding machine with an automatic function can process large quantities efficiently.

There are special valve grinding machines for valve processing that work either manually or automatically. Precision surface grinding machines also deliver perfect surfaces, whether manually or programmed. Anyone looking for durable grinding machines will find the optimum solution at EFCO.

How can I buy or rent grinding machines from EFCO Maschinenbau GmbH?

You can buy or rent grinding machines from EFCO Maschinenbau GmbH. Our range includes various models for machining valves, flanges and other components. Whether stationary grinding machines or mobile solutions, we offer the right technology for every application.

If you are looking for a long-term solution, you can purchase a grinding machine directly. If you only need a machine for a specific project, you can take advantage of our flexible rental service. This gives you access to state-of-the-art technology without high investment costs.

Our team will advise you individually so that you make the right choice. Whether you buy or rent, we supply high-quality sanding machines that work reliably and precisely. Contact us directly for more information. We will find the best solution for your requirements.
EFCO Maschinenbau GmbH
Otto-Brenner-Straße 5-7 52353 Düren Germany
+49 2421 9890
+49 2421 989119
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EFCO Maschinenbau GmbH
Otto-Brenner-Straße 5-7 52353 Düren Germany
+49 2421 9890
+49 2421 989119