Stofzuiger Aansluitstuk | 3D Cadworks

Case studies

REALISATIE // Vacuum Nozzle

Vacuum Nozzle


Engineering and Reverse engineering

Computer-Aided Engineering (CAE)

3D Scanning, 3D Measurements and Prototyping

For a customer that operates in the nuclear sector, we designed a vacuum nozzle for underwater use. The vacuum cleaner is used to absorb stainless steel chips, which are created during the processing under water. In this way the chips do not end up at the bottom of the water bath. 

We started off with developing a model. Then we performed several flow simulations on the design. To eventually finalize the design for prototyping by means of 3D printing.


When designing the vacuum nozzle, we tested different variations by means of flow simulation in order to obtain the optimal model that meets the requirements.

One of these design requirements is that the nozzle can vacuum both large and small chips with an average suction velocity of 25m³/h, taking into account a maximum drop velocity of 0.2m/s.

To perform the flow analysis we went through several options, each time with a different size of the nozzle opening. 

Flow Simulation

A flow simulation has therefore been carried out for the various options. The results were then compiled into a technical report.

In the end, we obtained a suitable model, which will absorb water around the machining process at a suction speed of approximately 4.5 m/s and a chip drop speed of 0.2 m/s.

3D Print

Then, due to the complexity of the piece, we made a prototype with our 3D printer, so that the whole structure could be tested. To do this, we adapted the model obtained from the flow simulation, externally in function of the print-ability of the piece. We also added external parts to mount the nozzle in the system.

Case studies

Hoisting // Transport // Storage Tool Reactor Dumpnozzle-caps

New reactors at ExxonMobil can count on Innovative Hoisting Tool from 3D Cadworks.

Innovative lifting tool, developed and produced by 3D Cadworks for our customer HCI, for the (de)assembly of dumpnozzle caps of Gofiner reactors. This special hoisting tool consists of a dumpnozzle-cap gripper, which is controlled via the VHT-tool (forklift truck).

In addition, 2 storage racks were supplied with a corresponding lifting beam. Via the lifting beam, the dumpnozzle-caps, which have been removed from the reactor, are moved to the storage rack.

3D Cadworks took care of the complete development and delivery of this special lifting tool for the (dis)assembly of dumpnozzle caps with additional transport and storage tools.

The hoisting tool was delivered with accompanying user manual and certification.

Do you need engineering of special tools? Feel free to contact us.

3D Hatch

At the request of our customer, we have designed and installed a safety hatch. The safety hatch is used to be able to descend safely via the existing ladder to the lower floor. The safety hatch also serves to safely screen off the opening in the floor, both when open and closed. In addition, we have provided a manual and instruction sticker for use on the safety hatch.

The safety hatch consists of a frame, which is placed in the opening of a floor. Four panels are stored in the frame. By opening the upper panel, one can unlock the side hatches and then pull the lower panel upwards and lock it. In this way, the opening in the floor is completely safely enclosed. One can descend the stairs via the access hatch using the safety handrail. After using the safety hatch, the whole can be folded back completely and the opening is safely closed.

This safety hatch is universal and can also be purchased for implementation in your company.

Feel free to contact us for more information about the 3D Hatch.

Lifting Tool Reactor Dumpnozzle-caps

The engineering and production of this innovative lifting tool was realised by 3D Cadworks in order to guarantee safe and easy (dis)assembly of reactor dumpnozzle caps. 3D Cadworks took care of the complete development and delivery of this special tool. 

The lifting tool was delivered in a handy storage box with accompanying user manual and certification.

Do you need engineering of special tools? Feel free to contact us.

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