HCP: Automatic cutting and punching machine

Automatic sample preparation for combustion analysis

The HCP processes cylindrical steel samples and enables the fully automatic production of punched pieces for combustion analysis. A slice is cut out of a cylindrical sample, which is then used to punch out the specific samples for combustion analysis. Sample management within the system is fully automated using a multi-axis handling system, without the need for manual intervention by operating personnel.

Maximum flexibility in sample shape and sample input

The HCP is characterized by its high flexibility regarding the shape of the samples and the type of sample input. It can process cylindrical samples with diameters ranging from 30 to 38 mm. Under certain conditions, it is also possible to process conical samples. The samples can be entered in various ways: manually by the operator via an input flap, by a multi-axis robot or pneumatically via a pneumatic tube connection directly from the plant to the laboratory. In the latter case, the system can receive, and process samples delivered directly without a pneumatic carrier.

Maximum efficiency in sample cutting

The cutting efficiency of the system is outstanding. The cylindrical sample is clamped in a rotating chuck and rotated at a speed of around 3300 revolutions per minute during the cutting process. The cut is made using a high-speed cutting disk, which ensures a precise and fast cut. Due to the rotation of the sample during the cutting process, even hard and tough materials can be processed without any problems. This unique cutting technology also prevents excessive heat development at the cutting edge and contributes to the durability of the cut-off disks. 

Reliable punching technology

The machine's punching unit reliably produces punched pieces that are used to determine carbon, sulphur and nitrogen content by means of combustion analysis. For punching high-strength steel, the sample can be heated by optional high-frequency induction, with a water module available for cooling. It is possible to produce up to four punched pieces weighing approximately 1 gram (depending on the thickness of the sample) simultaneously.

The punched pieces can be removed directly from the HCP using a cup. On the other hand, the samples can be transported pneumatically to a turntable magazine. Here, the operator removes the samples, processes them manually for analysis and feeds them into the measuring device. Alternatively, the punched parts can also be conveyed to the CSNLab. The CSNLab covers the entire sample preparation process, from receiving the punched pieces to sample weighing, dosing of additives and transfer of the prepared crucible to the analyzer.

A diverter system in the pneumatic transport allows the punched pieces to be routed to different destinations (magazine or CSNLab), enabling fully automatic separation of the samples for different analysis methods. This also provides redundancy if one analysis unit is not available.

Sample analysis using optical emission spectroscopy

If necessary, the remaining piece of the sample after the cutting process can be used for analysis by means of optical emission spectroscopy. The handling system places the residual piece on the output position of the system, from where it can either be picked up by a robot or conveyed to the next preparation unit via a linear transport system. The milling of the sample surface of the residual piece can be carried out with the HS-F 1000, for example.