Tectra Automation and Hytec recently joined forces in a project to upgrade an out of use vehicle parts press in the production line of MA Automotive, a motor parts manufacturer in Pretoria. The old 201 press needed improved functionality, with more user-friendly electrical controls and increased capacity.
Hytec upgraded the hydraulics, pumps, valves and electronic control valves, while Tectra Automation was responsible for the new control components. The machine was previously a hard-wired relay and contactor control system that required a lot of cabling and was difficult to reconfigure. A Profibus system was used to minimise cabling between machines and control. The new system included a Bosch Rexroth L40 PLC with VEP40 colour touch screen. The client was very happy with the user friendliness of the interface,” says Venter.
The hydraulic manifold block supplied by Hytec
Hytec provided the hydraulic manifold block and worked together with the client to integrate the old hydraulics into the new. The press was recipe driven with the parameters programmed in. The client’s requirements were to regulate and influence the speed and force of the press. Hytec was able to do this by installing Bosch Rexroth A4V750 horsepower controlled pumps.
Benefits of the new system are stepless programming with no mechanical components to maintain and the ability to make program changes on-site.
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