Quality Control / Third Party Certification

High product quality and reliability are guaranteed by the latest methods of control in material and practical testing.

To comply with the regulations of the international classification societies and relevant ISO standards is only the minimum certainty we are offering to our customers.

We ensure a superior performance of our propellers and shaftings by running continuous quality tests in our laboratory. Noise and vibration tests are carried out by own engineers as well during driving operation.

Our services and products are verified regularly. Have a look at the actual third party certifications below:

Germanischer Lloyd Certification GmbH attests that PIENING PROPELLER adopted the Quality Management System according ISO 9001:2008 for the scope development, manufacturing and distribution of propellers and shaftings as well as repair and service of drive lines and ZF-products.


Bureau Veritas:   DNV-GL

BV certificate

BV SMS-W-II-1876-E-0


GL WZ 1293 HH 4

Recognition for BV Mode II Survey Scheme   Approval of Material Manufacturers
Product range:   Product range:
Controllable and Fixed Propellers, Shaft Lines, Accessories   Propeller and parts of propellers consisting of Copper Cast Alloys - CU2, CU3 und CU 4
Lloyd´s Register:    DNV-GL

LR certificate

LR MD 00-3313-004-7a



Certificate of Approval   Recognition Certificate
Product range:   Product range: 
Copper Alloy Castings for Propellers in grades CU2, CU3 and CU4    Transfer of stamping of materials during production


Welding Workshop Approval Certificate    
Product range:    
Hull Equipment, Machinery Components, Propellers    


Further information

Mr Mathias Pein
FON +49 (41 24) 91 68 - 12
mobile +49 (171) 4 85 33 76
FAX +49 (41 24) 91 68 - 52