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During an extensive evaluation process, Viereck qualified as a Certified Excellence Partner of Bosch Rexroth. We are proud to have been offering hydraulics from Bosch for 64 years now. The high quality requirements of this partnership are the guiding principle of our company.

As a Certified Excellence Partner, we offer intelligent, safe and efficient solutions from Bosch Rexroth. We are not only certified technical experts, but also offer you excellent engineering. From design and plant engineering to assembly and commissioning, we are passionate about realizing systems and subsystems that meet the highest performance requirements.

Extensive training and qualifications on Bosch Rexroth products and applications enable us, as a Certified Excellence Partner, to apply this in-depth knowledge to all the solutions we offer.

As a Certified Excellence Partner, we are available to provide you with expert advice and sales support.

As a Certified Excellence Partner Service, we are also the experts for competent consulting and after-sales support for Bosch Rexroth products and solutions. In addition to qualified know-how, we offer you fast spare parts support and qualified repair service.

You can also benefit from our comprehensive range of services: field service, retrofit, product overhaul, system optimization, condition monitoring with predictive maintenance.

As a representative for AE service, we combine the two worlds of electrical engineering and hydraulics of Bosch Rexroth AG. From us you get the best of both worlds from one source.

Our new "PLC remote maintenance unit" allows our specialists secure access to your PLC worldwide via VPN tunnel. This makes the entire Viereck know-how available for commissioning and service operations worldwide at low cost.

Read more about the functionality on PLC remote maintenance case.

As aresult of a new partnership with the TÜV Thüringen, VIERECK now offers a testing technology where the bladder accumulators does not have to be removed from the system.

Operators of pressure storage facilities are obliged to check the safety of the facilities regularly. In some cases, an internal and pressure test is prescribed for this purpose. Up to now, the bladder accumulators had to be removed from the system and tested by a specialised company. In most cases, the inspection was accepted by the TÜV.

The TÜV Thüringen has now developed a ID-E-substitute test procedure where the substitute test can be performed at the installed system. In some cases it is not even necessary to shut down the system.

Experts from TÜV Thüringen have developed a new, technically innovative high-performance technology based on EMAT. This is a specified ultrasonic application, designed for use in the field of hydraulic accumulator cylinders.

ID-E comprehensively meets the requirements of VdTÜV Code of Practice 378.

The new procedure enables the complete testing of the pressure vessel in one test step. This test method differs clearly from other offered ultrasonic test methods and provides the operator with the legal security he expects.

Advantages of the ID-E:

• Evaluation of measurement results in real time
• integrated statement about the entire pressure bearing wall, including thread
• Detection of impermissible inhomogeneities
• Comparability with earlier / later measurements
• Testing at higher surface temperatures
• Detection of passive errors
• Testing without additional test medium
• Testing without coupling agent
• Test without 230-volt power connection (Ex hazardous areas)
• Testing without connection of a high-pressure test manometer
• Testing without conversion of the bladder accumulator
• Testing without separation of useful and disturbing noises
• Testing without transporting the plant part to the test site
• Inspection without returning the plant section to the plant
• no generation of pressure differences (as e.g. with SEP) necessary
• no damage to the bladder during the test

TÜV Thüringen is the holder of the patent. VIERECK is a contractual partner of TÜV Thüringen and is happy to carry out the tests on their premises. Please contact our service staff.

Contact partner

It is not always necessary to buy new defective assemblies. Especially with high-quality modules it is often sufficient to replace or repair wearing parts or defective components. In modern workshops, Rexroth tests and repairs assemblies according to manufacturer specifications and exclusively with original spare parts. All workshops are ISO-9001 certified and offer uniform quality standards as well as a warranty on the repaired products.

In the case of emergency and urgent repairs, our trained technicians restore the components to a functional state quickly and at optimum cost. Rexroth gives a 12-month warranty on the replaced parts. If a repair is not possible due to the existing damage, the Rexroth Service Department will automatically submit a new part offer.

A preventive product overhaul ensures the long-term availability and productivity of your machines. Experienced technicians analyse the need for action on site and, at the customer's request, carry out the replacement and commissioning of the overhauled components.

We have the largest product range worldwide for industrial hydraulics, electric drives and controls, linear and assembly technology, clamping technology and welding technology.

The long-standing, close partnership between the companies Bosch Rexroth and VIERECK in hydraulics has now been extended by a further product area. With immediate effect VIERECK takes over the area sales of service performances of the company Bosch Rexroth in the area "electric drives" (AE) in the north. The principle of close proximity of partners to customers, which has been proven in hydraulics for decades, is now also applied to the service of products in the AE area. In addition to the central contact persons in the Bosch Rexroth plants, our competent sales team will now also be available to assist you.

Contact partner: Felix Knakowski

Our hydraulic specialists are currently overhauling the flap bridges at the flood barrier of river Stör. Viereck Hydraulik supplies the complete hydraulic system for the flap bridges as well as the entire control system for the two flap bridges.

The Stör is the largest tributary of the Elbe in Schleswig-Holstein. In the lower reaches from Kellinghusen to its mouth, it is a shipping route and is subject to the influence of the tide. The water can flow in and out unhindered with the tides.
The flood barrier was put into operation in 1975 and protects the town of Itzehoe and the surrounding area from the storm tides of the North Sea. During storm surges (from water level of the Elbe 2.50 m above NHN), the gates are closed - 906 times between 1975 and mid-2014.

www.viereck-hydraulik.com

For the commissioning of hydraulic systems and piping, our hydraulic specialists have created the perfect tool for themselves: With the completion of the third flushing unit, we can now also carry out flushing work with a total of up to 750 l/min. The flushing units from Viereck have a modular design. If oil quantities greater than 250 l/min are required for large cross-sections, the units can be operated in parallel.

Hydraulic piping must be cleaned and checked for leaks on a regular basis. There are very different requirements for the "tools":

• the largest possible volume flow at relatively low pressure
• slight preheating of the oil
• continuous filtration and measurement of the degree of contamination
• cooler to avoid overheating (oil temperature increases during long flushing processes)
• final pressure test with high test pressure at low oil flow rate

Our flushing units meet all these requirements:

• powerful variable displacement pump designed for large oil quantities and high pressures
• variable flow rate, thus relatively small motor possible (facilitates the power supply at the operation sites: 63A plug for 30kW drive)
• large filters with high dirt holding capacity for reduced flushing times
• integrated cooler enables long flushing cycles
• easy transport by forklift truck and crane due to modular design of the systems
• extensive range of accessories for flexible design of the installation site
• up to 30 meters distance between flushing units and plant to be cleaned are possible

All our trainee positions have been awarded for 2019. If you’re interested, you can apply to start in 2020.

Find out more on our Jobs and Traineeships page.

In February, we delivered four 200 kW pumps to be used on-board, each with a displacement volume of 500cm3 per revolution. Our Viereck specialists took care of everything: from planning to construction, assembly through to entering the pumps into operation.

Following an exclusive training programme undertaken by our employees, we are now a certified service partner for REXROTH BOSCH. In doing so, we are further cultivating our longstanding partnership and we are also able to provide our customers with even better, even quicker service.

We greatly appreciate the trust you have placed in us.

From the 23rd to the 26th January 2018, we get to feature at the Bosch Rexroth shared stand at “NORTEC – The Trade Fair for Manufacturing in Northern Germany”.

We’d be happy to meet you at the trade fair.

Hall A1, stand 316

We have been named as the strongest distribution partner in terms of turnover by Moog for the fourth year in a row.