Success Story – Retrofit einer Härtemaschine samt Umrichter-Technik

Success Story

Retro­fit of a hard­en­ing machine includ­ing con­vert­er technology

Complete technical maintenance of a hardening plant of the automobile industry.
Plant gen­er­al view before modernization.

Def­i­n­i­tion of a project

The tech­nol­o­gy of the plant was obso­lete and the spare parts are not avail­able. The tar­get was the com­plete mod­ern­iza­tion of the total plant for hard­en­ing of dri­ve shafts in short­est downtimes.

Mechan­i­cal modernization

The equip­ment was decon­struct­ed in all sin­gle parts and all wear parts of the plant (jour­nals, con­nec­tors, seal­ing gas­kets, gear rings and guid­ing shafts) were replaced. By using new cylin­ders, valves and sup­ply units the pneu­mat­ic and hydraulic sys­tems were mod­ern­ized all around. A high­er plant dynam­ic was achieved by using ser­vo drives.

High volt­age and converter

The high volt­age trans­former as well as the con­vert­er plant of the hard­en­ing proces­sor in tran­sis­tor tech­nol­o­gy were replaced. The exist­ing sup­ply racks were revised, the water cool­ing sys­tem was modernized.

Elec­tri­cal modernization

It becomes nec­es­sary to replace the elec­tri­cal plant instal­la­tion includ­ing switch­board cab­i­net, oper­at­ing, sen­sor tech­nol­o­gy and cabling com­plete­ly. All safe­ty func­tions were real­ized by the use of safe­ty con­trol and cor­re­spond­ing dri­ve con­trollers. Via indus­tri­al PC as well as and mobile pan­els oper­at­ing was realized.

Process opti­miza­tion and Visualization

Via visu­al­iza­tion tai­lored to the plant an oper­a­tor guid­ed con­trol as well as an opti­mal process super­vi­sion of all plant con­di­tions were realized.

CE and documentation

Based on the new con­for­mi­ty dec­la­ra­tion of the plant it becomes nec­es­sary to pre­pare an exten­sive doc­u­men­ta­tion includ­ing risk eval­u­a­tion accord­ing to appen­dix VII of the EC machin­ery directive.

Contact Person
QA Geschäftsführer Christian Franssen
Christian Franssen, ppa.
Electrical Engineer
Specializations: Electrical Engineering, machine safety regulations project management
Our philosophy

Only if our systems are integrated at the customer completely they develop their entire performance potential. Therefore it is important for us that our customers are integrated in the process from the very first day of the project carry out. Communication is about it the most important connecting part between us and our customers.

Customer targets
  • Maximum production efficiency and quality
  • Stable industrial processes
  • Well trained personal
  • Low service costs
  • Most favourable conditions