Welcome to Kreft & Röhrig GmbH in Troisdorf!


Your innovative partner for technical hard chrome plating and cylindrical grinding.

How to contact us directly:

Phone: +49 (0) 22 41 / 97 37 8-0

eMail: beeckmann (et) kreft-hartchrom.de

Technical hard chrome:

Protective chrome plating

Protective chrome plating

with a chrome plating of 5-10 µm

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Dimensional chrome plating

Dimensional chrome plating

with a chrome plating of approx. 30-50 µm

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Excess chrome plating

Excess chrome plating

with a chrome plating of 0.1-0.5 mm

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Repair chrome plating

Repair chrome plating

with a chrome plating of 0.15-0.5 mm

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Multilayer chrome plating

Multilayer chrome plating

with a chrome plating of 50-150 µm

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Matt hard chrome plating

Matt hard chrome plating

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Other dimensions and weights on request.

Pre- & post-treatment:

External cylindrical grinding

External cylindrical grinding

Workpieces
Ø 50-600 mm up to 3,000 mm length
Ø 50-500 mm up to 4,000 mm length

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Belt grinding

Belt grinding

Workpieces Ø 80-600 mm up to 4,500 mm length

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Polishing

Polishing

max. workpiece dimensions and weights on request

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Demagnetising

Demagnetising

Workpieces 500 x 700 mm up to 5,000 mm length

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Other dimensions and weights on request.

Other processing techniques:

Sandblasting

Sandblasting

Max. workpiece dimensions and weights on request

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Dehydrogenating

Dehydrogenating

Workpieces max. 1,000 x 1,100 mm up to 3,000 mm length

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Arc spraying

Arc spraying

Workpieces up to Ø 500 mm, up to 4,000 mm length
max. layer thickness: 20 mm

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Other dimensions and weights on request.

Typical industries for which we offer surface finishing solutions:

Mechanical engineering

Mechanical engineering

Typical workpieces: Pump rotating assemblies, pinions, shafts, tools, bolts, rings, casing parts, rotors, etc.
 
SMC mould making

SMC mould making

Typical workpieces: All mould parts whose surfaces are to be hardened and tempered for product contact.
 
Hydraulic systems

Hydraulic systems

Typical workpieces: Piston rods, cylinders, pump parts, etc.
 
Plastics technology

Plastics technology

Typical workpieces: Wide slot nozzles, blow heads, extrusion screws, spiral distributors, etc.
 
Pharmaceutical & medical technology

Pharmaceutical & medical technology

Typical workpieces: Pallet tools, rollers, mixer parts, etc.
 
Food technology

Food technology

Typical workpieces: Rollers, mixer parts, etc.
 

Quality


We are certified according to DIN EN ISO 9001:2015. Regular audits ensure that we deliver the highest possible quality. The constantly increasing quality requirements of our customers call upon us to continuously optimize our processes.
 

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Environment


Environmental and nature conservation is close to our hearts and is pursued vigorously. This is why we deal openly with the issue related to the handling of hazardous substances and are subject to constant monitoring by public authorities. This means our devices for the protection of air, soil and water are regularly checked.

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Kreft & Röhrig today:

Since 1963 we have been manufacturing high-quality, technical hard chrome plating for a wide variety of applications.
 

We offer cylindrical grinding, belt grinding, polishing, sandblasting and demagnetising for all surface treatment with hard chrome.
 

Optimized processes ensure compliance with delivery deadlines and maximum flexibility. Today, customer satisfaction, social commitment and environmental awareness are the cornerstones that define Kreft & Röhrig.
 

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Kreft & Röhrig

Quality

Quality

Constant checks ensure the high quality of our surface finishes.
Adherence to delivery dates

Adherence to delivery dates

Short production times and optimized processes enable us to meet our delivery deadlines.
Flexibility

Flexibility

Our optimized production processes enable us to react very flexibly to the deadlines of our customers.
Customer satisfaction

Customer satisfaction

High quality, adherence to delivery dates and flexibility are essential to achieving our most important goal: high customer satisfaction.