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Tube stock and cutting
Production starts with the steel tube and bar held in stock. Tubes are cut to the length each part needs before they go on to bending.
Fluid management systems manufacturer since 1990
Since 1990, RSS Kumru has manufactured turbo oil lines, injection pipes, hydraulic lines and fittings for passenger cars, commercial vehicles, tractors and construction machinery. Production takes place at its plant in Gebze, Türkiye, and serves original equipment manufacturers (OEMs) and the aftermarket.
RSS Kumru manufactures precision pipes and hydraulic hoses matched to OEM reference numbers — 2,600+ parts covering European passenger cars, commercial vehicles, agricultural tractors and construction machinery, including Mercedes-Benz, Caterpillar and MAN applications. Manufacturing is carried out to technical drawing for original equipment manufacturers and to OEM reference for the aftermarket.
For example 442 070 8133
Use the arrow keys to move between the parts.
We manufacture to technical drawing for vehicles and machinery newly developed by original equipment manufacturers (OEMs), and we supply OEM-referenced parts to the aftermarket. Cutting, bending, end forming and hose crimping are carried out under one roof, and every batch is checked in our measurement laboratory.
About the companyProduction began with diesel injection lines for tractors and brake pipes for passenger cars.

All processes from cutting to testing are carried out in-house at our 3,500 m² plant.

With an optical 3D scanner, a profile projector and hardness testing.
For European passenger cars and commercial vehicles, tractors and construction machinery.
Pipe and hose groups for engine, fuel, steering and hydraulic circuits. Each group holds parts matched to OEM references.
From stock material to a tested part: the steps a tube or a hose goes through in the plant.

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Production starts with the steel tube and bar held in stock. Tubes are cut to the length each part needs before they go on to bending.

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Cut tubes are bent on CNC tube benders and in a robotic bending cell. The bend sequence, angles and distances come from a program written for the part.

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Tube ends are flared, beaded or swaged so that the tube seals against its nut, its fitting or the mating part.

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Nuts, nipples and connectors are turned from bar stock on CNC lathes and finished on machining centres.

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Hose is cut to length, fitted with its ferrules and end fittings, and crimped on the hose press.

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Hose assemblies are tested under pressure in the closed chamber of the test bench.
We supply pipes, hoses and fittings to six industries.
Our products are supplied to vehicle and machinery manufacturers, spare parts distributors and wholesalers. Our export markets are Germany, Italy, the Netherlands, Belgium, Austria and Sweden in Europe and, beyond Europe, the United States, Australia, the United Arab Emirates and Iran.
Export-focused supply from TurkeyPlease send the technical drawing, sample or OEM reference number. Your enquiry will be reviewed, and we will respond with price and lead time.