Field Service

Our service offer is attuned to the respective customer’s needs, for example regarding maintenance programs. Customers desire servicing intervals which are as long as possible and, between them, guaranteed disturbance-free operation. To meet these wishes, we use mobile measurement systems to assess the compressors’ statuses.

Different reasons can cause problems and failure. We perform troubleshooting and the rectification of faults, corrective repair work and repairs fast, reliable and expertly worldwide within a few days.

One of our services is preventive maintenance. This hinders that machine downtimes arise. Replace components before they fail. Fixed, plannable maintenance intervals enable customers to avoid wear, subsequent damages and unnecessary downtimes. Moreover, they extend the compressors’ working lives. With improved availability and efficiency, the overall economy of production is increased. This monitoring provides information regarding the optimum time for maintenance, saves costs and avoids downtimes. Moreover, tailor-made solutions for Condition Management and Condition Monitoring are excellent tools for wear protection.

Initially, our technicians inform themselves regarding the operational sequence as well as acute problems and anomalies for compressor diagnosis. Following this, they establish the status of the respective compressor and carry out on-site measurements under various operating conditions. After examination and analysis of the results, we make a diagnosis and discusses repair proposals with the customer.

Compressor Diagnosis Services

• recording the dynamic cylinder pressures (pressure via time and crank setting) as well as the temperatures for all cylinder stages under various compressor system operating conditions.
• recording gas pulsations in the containers and pipelines.
• examination of the vibration level on the compressor and system parts belonging to it

Checking the Thermodynamic and Mechanical Compressor System Status

• comparison of the measurement values recorded at the compressor with reference values
• calculation of the supply quantity from the pressure and temperature values for the operating conditions measured
• determination of the theoretical power consumption and comparison with the actual measurement values
• calculated verification of the stability of the individual components based on all the measurement values recorded and the stress derived from it
• calculation of the bearing load and comparison of operating data and design (e.g. in case of bearing damages)
• simulation of the various statuses to determine variances between actual and theoretical process data (pressures and temperatures)

Extended Service Offer: Telemetric Data Measurement Recording

• measurement data recording on rotating or moving components or wireless transfer of the measurement values
• measurement of the mechanical load of components (e.g. the piston rod) using strain gauges
• vibration measurements of the operative dynamics (e.g. of flywheels)
• measurement of relative movement of components during operation (e.g. coupling flanges; dynamic loading of couplings)

We support your customers with engineering methods with the question whether or to what extent an existing compressor system can be adapted to changed production processes. In addition to thermodynamic calculation, if applicable, the stability-related post-calculation of critical system components also belongs to the standard procedures.

Here, our engineers use computer programs which we have developed by our research and development department and are applied daily for designing new compressor systems.

We offer the following compressor engineering services:

• thermodynamic and mechanical compressor calculations using the inhouse simulation software KO³
• support when assessing and analyzing damages; RCFA (Root Cause Failure Analysis)
• Finite Element Model calculations (FEM simulation)
• vibration measurement, vibration analysis and assessment
• performance and approval tests for compressor systems

Fast, high-precision, contactless: 2D and 3D laser measurement has asserted itself during the past few years because it provides several considerable advantages. Therefore, we apply this precise method, if possible, for example for checking the erection of the compressor.

In detail, we use 2D and 3D laser techniques for:

• checking the compressor parts as well as form and position tolerances (e.g. prior to approval after processing a frame or cylinder)
• determination of the frame position (e.g. subsequent to reinstallation of the frame following the repair of a foundation)
• precise alignment and checking of the form and position of compressor parts in series or adjacent to each other