Application

Joining an assembly whose visible surface is worth as much as its function

In medical technology, assembly is part of a validated process. A part that has to be set down and regripped is not merely awkward – it is a step the work instruction does not provide for.

Component
Drive unit, generator, column, module
Weight
15 to 80 kg
Movement
lift, rotate, join
Accuracy
fit in tenths of a millimetre
Frequency
20 to 80 a shift
Environment
assembly, partly cleanroom ISO 7
01 — The task

Every movement is documented. Including the one that goes wrong.

Take sub-assemblies such as drive units, generators or columns from supply, guide them to the assembly station and join them into frames or housings. The weights are moderate, the requirements are not: the joints are tight, the visible surfaces delicate, the sequence has to be the same every time, and in cleanroom areas the handling must not burden the particle balance.

02 — The solution

How we solve it

Reproducible means guided

In validated production a work step should run the same way every time. A device with stops, detents and defined end positions makes the correct movement the easiest one – and describable in the work instruction. What by hand happens at different speeds and accuracies depending on force and skill becomes a step that can be verified and documented.

Low-particle from the start

Cleanroom capability cannot be retrofitted. Guides are enclosed, plain bearings in the product area replaced by rolling bearings, open lubrication points removed, drives extracted. Added to that are low-abrasion materials withstanding the usual disinfectants – alcohols and oxidising cleaners are the commonest cause of early failure of seals and pads.

Rotate instead of setting down

Many assemblies have to be accessible from below or from the side for assembly. A damped rotation unit in the mount saves setting down and regripping: the operator turns the part into the desired position with two fingers and it stays there. That is not only faster but also the step that disappears from the documentation – because it does not happen.

03 — What changes

At the workstation afterwards

  • The sequence is reproducible and describable in the work instruction.
  • Visible surfaces stay free of scratches and marks.
  • Setting down and regripping disappear – one step less in the process.
  • The design does not burden the particle balance in the cleanroom.
  • Materials withstand the disinfectants in use.
Frequently asked questions

Frequently asked questions

The weights are small – is it worth it?

Often yes, but for different reasons than elsewhere. It is rarely about the load and mostly about repeatability, freedom from scratches and not having to set a part down and regrip it. Where that does not matter, we say no.

Is the device cleanroom-capable?

In the appropriate design yes. Cleanroom capability is not a property of a catalogue product but a construction: enclosed guides, suitable materials, extracted drives, no open lubrication points. We settle the class with your quality assurance.

Does the device have to be validated?

As a rule not the device but the process it sits in. We supply the documents you need for that: material certificates, cleaning and maintenance instructions and a description of the sequence that can be taken into your work instruction.

Contact

Let's talk about your project.

One short conversation usually settles more than three quotations. Call or write — you will reach an engineer directly.

Reach Entracon

How can we help?

Chat is not staffed right now. We are back for you tomorrow from 08:00. Just request a call-back – we'll get back to you.
Send an e-mail info@entracon.de
Or call us directly +49 234 5414010