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Fuel Injection Systems

dedicated to high-precision

FUEL INJECTION SYSTEMS

HIGH PRECISION PARTS

(MACHINING)

HEAT TREATMENT

(HARDENING)

FUEL CLEANING

(TECHNOLOGY)

MARINE APPLICATIONS

AUTOMOTIVE APPLICATIONS

AEROSPACE APPLICATIONS

RAILROAD APPLICATIONS

STATIONARY APPLICATIONS

Welcome to DUAP

DUAP AG in Herzogenbuchsee, Switzerland, is an independent manufacturer and supplier of Diesel fuel injection systems for marine, traction, stationary and automotive applications.

Fuel Injection Systems

Fuel Injection Systems

DUAP develops manufactures and sells complete injection systems and their spare parts throughout the world.

High Precision Parts

(Machining)

High Precision Parts (Machining)

Our machining centre is equipped with «state of the art» drilling machines. They form the basis for a successful co-operation.

Heat Treatment

(Hardening)

Heat Treatment (Hardening)

We have extensive experience with the general thermal treatment processes as well as with  specific processes developed for  individual applications.

Fuel Cleaning

(Technology)

Treibstoffaufbereitung

EFICLEAN 2100. A Self contained Diesel fuel treatment system.