

Overview
About Carl KRAFFT & Söhne GmbH & Co.
Who we are
Established in 1870, KRAFFT have become a reliable PARTNER in the paper industry. Today, our worldwide involvement caters for the needs of a multitude of industries and applications. QUALITY is our major aspect, which is why all our production is supervised according to the quality management standard DIN ISO 9001. This ensures that stagnation will not occur and that our customers can be assured that by choosing KRAFFT, you are choosing a progressive company. SERVICE is not a catchword to KRAFFT, but is the basis of our culture. With our own fleet of vehicles, we can keep our promise to deliver on time. Our highly skilled and experienced specialists have, at their disposal, a facility equipped with the most modern fabrication machinery. We have combined our experience of traditional mechanical engineering with the most up-to-date CAD design and the finite elements method. Coupled with the extreme competence of one of the leading suppliers, this places KRAFFT as being the ideal provider of rollers, drums, cylinders and, indeed, any heavy turning component. We are capable of producing rolls, grinding and dynamically balancing on a massive scale up to. - 5 500 mm Maximum Diameter - 15 000 mm Maximum Length - 130 tons Maximum Weight Repair Service KRAFFT are pleased to offer a roll repair service, including journal renewal, surface plating and dynamic balancing. Each roller, that enters the shop, undergoes a full inspection when the costs for repairing any reported defects are estimated. Erection Department We have a team of experienced fitters who are at your disposal. Our coverage is world-wide. As well as providing roll removal and installation, our team is highly proficient in work involving the modernization of existing plants and the dismantling and erection of production facilities. Project and Design Engineering Engineering has been at the heart of our business for 130 years. Our design engineers work with our customers in a close partnership to produce unsurpassed results. Whether the requirement is for rollers or for complete modernization of your plant, you can be confident in our assurance that we can more than meet your expectations.
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Düren, Germany
Member since 2003
Employees50 - 100
Certificates1
Turnover20 - 50 Mil.
Year of foundation1870
Competencies
Technologies
Finishing
| Technologies | Lotsize | Length | Width | Height | Diameter | Weight | Material thickness |
|---|---|---|---|---|---|---|---|
External cylindrical grinding | 1–999 | 1,000–5,800 mm | from 0 mm | from 0 mm | 80–400 mm | 0–1,200 kg | from 0 mm |
Welding
| Technologies | Lotsize | Length | Width | Height | Diameter | Weight | Material thickness |
|---|---|---|---|---|---|---|---|
Inert gas shielded arc welding (MIG/MAG) | 1–100 | 500–15,000 mm | 300–6,000 mm | 300–6,000 mm | 100–6,000 mm | 0–100,000 kg | 5–200 mm |
Inert gas shielded arc welding (TIG) | 1–100 | 500–15,000 mm | 300–6,000 mm | 300–6,000 mm | 100–6,000 mm | 0–100,000 kg | 5–200 mm |
Manual electrode welding | 1–100 | 500–15,000 mm | 300–6,000 mm | 300–6,000 mm | 100–6,000 mm | 0–100,000 kg | 5–200 mm |
Submerged-arc welding | 1–100 | 500–15,000 mm | 300–6,000 mm | 300–6,000 mm | 100–6,000 mm | 0–100,000 kg | 10–200 mm |
Turning
| Technologies | Lotsize | Length | Diameter |
|---|---|---|---|
Turning | 1–100 | 500–15,000 mm | 300–5,500 mm |
Welded constructions / Structural Steelwork
| Technologies | Length | Width | Height | Diameter | Weight | Material thickness |
|---|---|---|---|---|---|---|
Welded constructions (weldments) | 500–10,000 mm | 300–6,000 mm | 300–6,000 mm | from 0 mm | 0–100,000 kg | from 0 mm |
Machine frames / bases / racks | 500–10,000 mm | 300–6,000 mm | 300–6,000 mm | from 0 mm | 0–100,000 kg | from 0 mm |
Surface Treatment
| Technologies | Lotsize | Length | Width | Height | Diameter | Weight | Material thickness |
|---|---|---|---|---|---|---|---|
Surfacing / build-up welding | 1–100 | 500–15,000 mm | 300–6,000 mm | 300–6,000 mm | 100–6,000 mm | 0–100,000 kg | 5–200 mm |
Assembly
| Technologies | Length | Width | Height | Diameter | Weight | Material thickness |
|---|---|---|---|---|---|---|
Industrial / On-site-assembly | from 0 mm | from 0 mm | from 0 mm | from 0 mm | 0–100,000 kg | from 0 mm |
Materials
Steel
Structural steelCase hardening/tempering steelStainless steel (rust-proof V2A)Stainless steel (rust-proof V4A)Tool steel
Heavy metals
Copper-zinc alloys (brass)Copper and copper alloys
Cast metals
Cast steelCast iron
Industries
Information technology (hardware)Aerospace and aviation industryAutomotive and vehicle constructionPlant engineering and constructionChemical industryMilitary engineeringMeasurement and control technique, laboratory equipmentPower generation and transmission industryPrecision engineering, mechatronics and opticsRailway and rail vehicles industryConstruction and architectural suppliesBuilding, agricultural and forestry machinery manufacturingMechanical engineeringShipbuilding industryPaper and printing machinery industryApparatus engineeringBoiler, container and tank construction Packaging industryHousehold appliance industrySpecial purpose machinery manufacturingElectrical industryMachine tool manufacturingHydraulic and pneumatic industryFurniture industryMining and tunnel engineeringOffice machinery and suppliesTelecommunication industryAutomation and control engineeringDrive and gear engineeringFittings engineeringLighting industryAir conditioning, refrigeration and ventilation industryMedical technologyClean room technology
Certificates
ISO 9001:2008
Parts & Machines
Machinery (1)
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Heinumat
ManufacturerHeyligenstedt
ControlPhilips
Technology
Turning
1 Machinery
Turning1
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