Products and Services

Waggonbau Graaff, based in Elze, specialises in the construction and conversion of tank cars, the design of individual wagon solutions and the manufacture of valves for rail freight wagons.

Developing and manufacturing chemical tank cars to order is our core business. Our portfolio includes unheated, insulated and heated tank cars, primarily in a variety of stainless steel designs. To build these high-end tank cars, we use stat-of-the-art production facilities to work with pressurized-vessel steel, including systems to process fine-grain structural steels and stainless steels. Our technical fittings also include a rotary pickling line for the precise treatment of internal surfaces, as well as automated welding equipment and an x-ray device to inspect circumferential and longitudinal welds to ensure the highest quality in every detail. This has been our commitment for over a century, and we see no reason to change it!

Based on modern designs, we use stainless steel and mild steel to supply our customers with innovative valve configurations for chemical, mineral oil and gas tank cars. We are also constantly developing special technical solutions, including freight wagon components tailored to your individual needs and innovative technologies to modernize your wagon fleet. Possessing all the expertise they need to develop tank cars and freight wagons from scratch, our design engineers also consistently find solutions for special transport requirements. Our experts rethink entire wagons from the ground up and manufacture to your specifications, drawing on decades of experience in wagon building and component development to do so.

Customised tank cars

We tailor tank cars to your specifications. A selection of our rail freight wagons for all kinds of applications is listed below.
Heated 77-m³ stainless steel chemical tank car

Waggonbau Graaff produces stainless steel and mild steel chemical tank cars tailored to each individual cargo. The interiors can be coated, rubber lined or enameled to suit your requirements. One example is this heated and insulated stainless steel chemical tank car with a nominal tank capacity of approx. 77 m³. It is suitable for carrying chemical goods in RID classes 3, 5.1, 6.1, 8 and 9. This model is optimised in terms of weight and volume compared to the 72-m³ and 75-m³ cars. The tank car has a tare weight of approx. 23.3 tons and can carry payloads of up to 66.7 tons. It is fitted with a six-pipe external steam heating system and a 100-millimeter-thick insulating layer. The tank car can be emptied from the top or bottom. A one-degree gradient optimises the residual emptying process.


Heated and insulated 50-m³ tank car

This 50-m³ tank car for the transport of sodium hydroxide (caustic soda) is representative of other Waggonbau Graaff tank cars with similar heating and insulation features.


Unheated 62-m³ tank car

An example of our unheated tank cars is this four-axle tank car for hydrogen peroxide (H2O2) with a capacity of 62 m³. 


Rubber-lined 64-m³ chemical tank car

Waggonbau Graaff produces mild steel chemical tank cars tailored to each individual cargo. The interiors can be coated, rubber lined or enameled to suit your requirements. Our portfolio also includes stainless steel tanks. This chemical tank car with a rubber-lined interior has a nominal tank capacity of approx. 64 m³ and is specially designed to carry hydrochloric acid in varying concentrations. However, it is equally well suited to the transportation of other products in RID classes 3, 6.1, 8 and 9. The tank car has a tare weight of approx. 22.2 tons and can carry payloads of up to 67.8 tons. On request by the customer, riser and pressure pipes complete with valves can be fitted. The tank’s gradient and sump basin allow all residue to be emptied from the tank. A spacious working platform leaves plenty of room to move around during filling and emptying.


Large-capacity 91-m³ tank car

This 91-m3 tank car is optimised for the transport of acrylonitrile. A minimal tare weight of approx. 23 tons permits an optimised tank capacity of roughly 91 m³, so that the payload of approx. 67 tons can be fully utilised for D tracks. To enhance safety in transit, the tank car is fitted with category C crash buffers in accordance with the Regulation concerning the International Carriage of Dangerous Goods by Rail (RID).


Insulated 83.5-m3 gas tank car

This 83.5-m3 gas tank car is designed to carry ethylene oxide. The stainless steel tank safeguards the required purity of the cargo. A low tare weight increases the possible payload. The tank has a capacity of approx. 83.5 m3. Thanks to a minimal gradient of 0.3 degrees, almost the entire nominal tank capacity can be used to carry payload in accordance with RID. Insulation prevents the cargo from heating up too quickly, while the highly polished insulation cover makes it easier to clean the outside of the tank car.


113-m³ gas tank car with extra-large tank capacity

A new development from Waggonbau Graaff and VTG, this 113-m³ gas tank car is designed to carry compressed liquefied gases in general and liquefied petroleum gas (LPG) in particular. Given the existence of weighbridges, many customers want these tank cars to be no more than 18 meters long over buffer and to have a maximum wheelbase of 14 meters. Besides increasing its tank capacity from 112 to 113 m³, this tank cars complies with all these customer specifications. The capacity increase was achieved by means of several adjustments, including an extension of the tank. To do this, it was necessary to move the manhole to the swept zone. Waggonbau Graaff has registered a utility model for this innovation.


Technical solutions for every requirement

There is no problem that cannot be solved! We supply you with valve fittings and special technical solutions for components. We will even build freight wagons to meet your individual needs.
We produce modern valves and equip your chemical, mineral oil and gas tank cars with our own high-quality technical components.
We develop a wide range of special solutions for the freight wagon market. Our innovations focus on underframes, superstructures and other components.
Is there something special that you need for your freight wagons? Our design department will be happy to develop customized solutions for you.
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