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Pumps for use in dialysis machines

Magnetic drive gear pumps are part of the Precision Mechanics business unit and cover, among other things, medical technology, analytics and diagnostics market areas. The more demanding limit values of the delivery characteristics of various applications can be covered.

As a Swiss SME, Diener AG has stood for precision and quality since 1955 and identifies itself through specific basic technical knowledge, a high degree of specialization in production and in-depth experience in measurement technology. 

This package makes it possible to meet complex manufacturing requirements and to act as a comprehensive service provider worldwide. 

Magnetic drive gear pumps are part of the Precision Mechanics business unit and cover, among other things, medical technology, natural science and the food industry. With ever more demanding limit values ​​for the delivery characteristics of Newtonian fluids, the requirements for the development of new systems increase. 

The example of the Silencer 1000 gear feed pump shows a successful customer-specific development with adapted characteristics. The product industrialization of the Silencer 1000 from a single source took place starting with the conceptual design of the pump layout up to the individual "one-piece-flow" assembly. 

Competent project planning in combination with the technical know-how of those involved in the project achieve individual approaches for the implementation of tailor-made technical specifications and their documentation. This is done in close cooperation between Diener AG and the subsidiary Diener Precision Pumps Inc. in Lodi (CA, USA) already during the planning and target definition of the project and provides the basis for the fulfilment of complex orders for gear pumps.

The individual components are designed taking chemical, mechanical and tribological attributes into account, functionally designed and adapted to the conveying characteristics in the overall system by means of high-precision fits. The tools developed independently by Diener AG for the design of various gears and the generation of a pump layout enable optimal pump design based on the requirements. 

The high-precision manufacturing infrastructure of Diener AG allows the machining of combinations of the tightest form and position tolerances, which contribute to a precise prediction of the performance already in the production of prototypes. 

The fine assembly of Diener AG enables the assembly of unique and complex systems already at the prototype level. The equipment and brackets, which are prefabricated using rapid prototyping (3D printing), contribute to the efficient assembly of the pumps. 

The preparation (running-in of the pump) and testing of the pump performance takes place immediately afterwards, whereby the uniqueness of each individual pump type is reflected in the customer-specific test procedures and limits. The extensive metrological know-how and decades of experience enable autonomous conceptual design and construction of individual test stands. 

The variety of test procedures and limits as well as various manipulated and controlled variables and their combinations, which increase with the constant further development of the product portfolio, can be transferred to superordinate generic test sequences. 

This enables an economical full control of all pump batches with adapted customer documentation as well as individual laser marking up to the packaging of the end product. 

Following the prototyping of the gear pump, which goes directly or after several iterations into the validation and release of the product, the engineering at Diener AG, in close cooperation with Diener Precision Pumps Inc., makes a smooth and efficient transition from one development phase to the next. The constant improvement of the product enables a smooth change from the pilot series to the large series production. 

Professional project support and implementation, constant innovation and process optimization guarantee that the high quality standards are met, starting with the product idea through to the packaging of the product.

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