ROHR2 Support

For the download of product information and brochures please see our Download page.
In case of questions concerning our software products or engineering tasks please contact us by phone, fax or email.

In case of questions regarding installation and application of our software products there are several information sources available:

ROHR2 Logo

Software manuals

The program delivery includes program manuals in pdf format (German and English).
The manuals contain a detailed description of the software functions.
The manual files are accessible by the program or in the program directory.

The  ROHR2 installation instruction provides a list of available manuals.

Download here:

ROHR2 Installation manual   Installation and system requriements

ROHR2 license manual   Activation , license modifications


The ROHR2 board is an information platform for ROHR2 and SINETZ users offering:
- The topics of the ROHR2 FAQ and SINETZ FAQ databases
- ROHR2/SINETZ support questions
- Directly posted user questions and articles.
- Questions regarding program handling
- General discussions around ROHR2 and SINETZ
- General discussions around stress analysis, stress codes and pressure loss calculation.

How to get an access to the ROHR2 board?
ROHR2/SINETZ users can access to the ROHR2 board after registration by:

  • the link to the ROHR2 board on this website
  • the ROHR2 function ROHR2 board login, see ROHR2win manual for instructions

Registration via website
For the registration to the ROHR2 board please use the Registration command on and follow the registration process.

User support/ hotline

For program users running a license under maitenance contract the user support via telephone and email is at you service:

Program system ROHR2 and SINETZ

+49 (0) 2303 332 33 44 Support in English     E-mail:
+49 (0) 2303 332 33 33 Support in German    E-mail:

Program system PROBAD

T.: +49 (0)2303 332 33-45
F: +49 (0)2303 332 33-50

SIGMA Ingenieurgesellschaft mbH
Bertha-von-Suttner-Allee 19
D-59423 Unna

Service time of the program support

The user support provides advice on installation and application of the program (hotline-service) on workdays (Mondays to Fridays) from 9.00 - 16.00 (Central European Time).

Program support closing dates:

Jan 01, 2019
April 19-22, 2019
May 01, 2019
May 30, 2019
Jun 10, 2019
Jun 20, 2019
Oct 3, 2019
Nov 1, 2019
Dec 24 - 26, 2019
Dec 31, 2019

Jan. 01, 2020