Status: Need is Closed

Explosion proof covers with glass insert

Request Number

Point of Contact
Need was closed on
Aug 22, 2018

We are seeking a cover solution (EX-proof) of our products. The solution can be chosen freely based on the possible approaches listed below.

Important for us is a waterproof solution accordingly to IP65 – IP 68 standard.

The cover has to be resistant against a reference pressure of 12.5 bars. This can be proven by a onetime testing up to 50 bars or a 100% testing of 12.5 bars. The whole cover needs to be tested accordingly IEC EN60079.


To fulfil these requirements, we are using our existing design (Ø 81) at the moment, which consists of the following parts:

Part 1: Aluminum / Stainless Steel cover part

Part 2: Glass window

Part 3: Sealing Compound

Part 5: Wafer Spring

Part 26: O-Ring

The annual demand is around 30.000pcs.


At the moment the assembly (including the sealing) and testing is done manually.

This leads to high efforts and potential failures.

It is possible to have a look at the manual process in our manufacturing facility to have a common understanding.

Key success Criteria
  • Grade of automation
  • Clear process flow
  • Low-maintenance of process / machines
  • FPY > 99%
  • Cost efficient
Possible Approaches
  1. New Design

Create a new design which has the EX-thread (M75) and a glass cover to allow a look at the display (see product picture). You can provide us the full assembled covers.


  1. Optimize the assembly process of our design (described previously)

Create a process or a machine which works with our existing design. You can provide us the full assembled covers or all information for the related machine / process.

Due Date
Sep 21, 2018
Items to be submitted

We are looking for concise, non-confidential proposals. The proposal should:

  • Describe the technical approach
  • Include a description of the responding organization or team and their experience.

To respond, please use the Respond button located to the right of this page.


Please note that only non-confidential information can be accepted. By submitting a response you represent that the response does not contain and will not be deemed to contain any confidential information of any kind whatsoever.  By submitting a response, you acknowledge that Siemens, in its sole discretion, may select or reject a response or any portion thereof.


Your NineSights community profile should contain all required information in order to provide us with appropriate contact information for your responses. For questions about NineSights privacy and security, please feel free to post in our Community Help forums.

Gallery Moderator(s)
Stephen Clulow
Request Number
Preferred Collaboration Types
Area of Interest