Diener Precision Pumps Ltd

Who we are

Diener Precision Pumps is a Swiss quality manufacturer of gear pumps and piston pumps. Our privately owned engineering company, run by engineers for engineers designs and manufactures precision pumps for OEM fluid handling systems worldwide. Superior performance, long life and quality as well as a high cost-effectiveness characterize the products of Diener Precision Pumps. All piston pumps and gear pumps are tailored exactly to the individual customer application. The precision pumps are developed at our centre of innovation in Lodi, California, and are produced at the company’s headquarters in Embrach, Switzerland.

The engineers of Diener Precision Pumps are always available to answer start up questions and assist with system troubleshooting. All gear pumps and piston pumps are designed specifically for your application and are thoroughly engineered to ensure long life and trouble-free operation. We design unnecessary cost out of the products.


We design our products to improve our customer’s competitive edge in the marketplace. All new products pass specific tests in our laboratories under “customer” conditions. Our development engineers cooperate closely with our product engineers. We optimize performance, long life and product quality with the lowest possible production costs of the required gear pumps and piston pumps. Our product- and manufacturing technology is state-of-the-art

The part tolerances of our pumps are typically in micrometres, ensuring pump performance is consistent. All gear pumps and piston pumps are manufactured to ISO 9001 / ISO 13485 standards and all raw materials are 100% lot-traceable.

All our products can be permanently laser-marked with the customer’s logo to ensure they maintain control of their aftermarket and are 100% tested prior to shipment (test results are included with each pump). Environmentally friendly packaging will protect your gear pumps and piston pumps all the way to your production floor

Our values

• We have trusting relationships with our employees, customers and suppliers
• We develop and produce innovative solutions and continuously improve existing gear pumps and piston pumps.
• We are a part of customer’s development team
• We support customer’s product life cycle from the beginning to the end
• Together with our customers we define optimized gear pump and piston pump systems
• We believe in long term, trusting business relationships
• We reinvest 100% of profits into employee training, equipment and R&D
• We only use the finest quality materials
• We set a high value in simple, elegant design
• We develop our own manufacturing processes to reduce handling steps and improve workflow
• Our part tolerances are typically in micrometres, ensuring pump performance is consistent
• We produce according to medical standard ISO 9001/ ISO 13485
• We have a clean-room according to ISO Class 7
• Our raw materials are 100% lot-traceable
• All products are 100% tested prior to shipment (test results are included with each pump)
• We control quality to control costs
• The end result is a lower total cost of ownership for our customers

Our presence around the world