Technical development and manufacturability
Aircraft maintenance transport trolley
Douna developed and built a custom transport and storage trolley for safely moving and storing high-quality aircraft components.
- 300 kg in total
- 50 kg
Project archive
Projects in practice.
Explore cases by the type of solution Douna has delivered.
13 projects visible
CNC machining: milling and turning
Component for a truck manufacturer
A custom component for a truck manufacturer, fully turned and milled by Douna from S355J2+N.
- Truck manufacturing
- S355J2+N
CNC machining: milling and turning
Precision ring for wheel production
An inner ring made from 1.7225 for a wheel flowforming machine, machined and externally chrome-plated by Douna.
- Wheel flowforming machine
- 1.7225
Components for the process industry
Thin-mesh stainless steel canisters for petrochemicals
Combining fine stainless steel mesh and a rigid frame in one canister. For this 316L stainless steel series, Douna used TIG welding, spot welding and purpose-made fixtures.
- Petrochemical industry
- 316L stainless steel and fine stainless steel mesh
Subsea & offshore
Large-part machining for ocean energy
A large main rotor blade for a scale prototype by Equinox Ocean Turbines, to which Douna contributed CNC large-part machining.
- Equinox Ocean Turbines
- Ocean energy and offshore
Hydrogen technology
Demonstration electrolyser at Eelde
A decentralised demonstration electrolyser at Groningen Airport Eelde, to which Douna contributed production, assembly and technical realisation within the WAviatER consortium.
- WAviatER
- Groningen Airport Eelde
Large-part milling and turning
Large turned workpiece for further machining
Douna carried out the agreed turning operations on a large industrial workpiece; Stork Turbo Blading performed the remaining machining.
- Stork Turbo Blading
- Turning
Components for the process industry
Automatic Probe Chargers
Two Automatic Probe Chargers for automated sampling in the blast furnace process, engineered, manufactured and assembled by Douna.
- Danieli Corus
- 2 machines
Subsea & offshore
Lifting and tilting yoke for a container
A custom lifting and tilting yoke for a 6.5-tonne container, developed by Douna with positive-fit lifting points and self-locking mechanisms.
- 6.5 tonnes
- 0–80°
Components for the process industry
ESMER flowmeters for a customer application
Two customer-specific ESMER Multi-Phase Flow Meters, developed, built, tested and calibrated by Douna for a client in the Middle East.
- ESMER Multi-Phase Flow Meter
- 2 units
Technical development and manufacturability
Test unit for heating boilers
A customer-specific test unit for central heating boilers, designed and built by Douna to the customer's requirements.
- Testing heating boilers
- Engineering, fabrication and assembly
Components for the process industry
Custom sandwich cutting machine
A delivered sandwich cutting machine, designed by Douna Engineering and built by Douna Machinery with precision components from Douna Precision.
- Food industry
- 50 sandwiches per minute
Components for the process industry
Development of the ESMER flowmeter
A compact ESMER Multiphase Flowmeter, developed and built with contributions from Douna Engineering, Douna Machinery and Petroleum Software Ltd.
- Petroleum Software Ltd., London
- Oil and gas / process industry