More than 60 years of experience

Design

Flender-Graffenstaden gear units are designed to power your transmission needs.

- Horizontal and vertical offset parallel shaft gearboxes
- Customised mult-stage gearboxes
- Integral gears with compressor housing integration
- Welded steel plate and cast iron casing
- Single helical, double helical ro thrust colalr arrangements

Applications

Flender-Graffenstaden gear units are located wherever oil & gas compression and oil by-products transformation takes place:

- Centrifugal compressors driven by turbiens and motors
- Single stage integrally geared air and process gas compressors
- Multi stage integrally geared compressors for combined compression and expansion
- LNG compression for transport

Scope of Supply

Flender-Graffenstaden gear units can be customised to on-site requirements:

- Lubricating oil pumps
-
Turning device for start-up and slow roll
- Couplings, quillshafts and adapted coupling guards
- Nitrogen container for spare parts preservation

Engineering

Our gear units are tailored to meet your turbo expectations:

- Ratings according to API 613, AGMA 421, AGMA 6011, ISO 6336
- Hydodynamic bearings with dedicated performance determination
- Lateral vibration Calculation and analysis of every unit
- Meshing load distribution according to AGMA 927
- Modal and structural finite-element analysis of casings
- Torsional analysis of complete shaft lines

Manufacturing Process

Our gear units benefit from 60 years of in-house experience combined to state of the art manufacturing technology:

- Carburizing and nitriding
- ISO and AGMA grade 4 or better gear grinding
- CNC machine tools for cylindrical turning and high accuracy teeth grinding

Testing & Instrumentation

Our gear units are individually tested according to customer specifications and requirements:

- Standard full speed tests according to API 612
- Parial load tests
- Back-to-back load test