In the previous article we talked about revamping as a process aiming at making a machine safe according to the regulations in force and also modernized thanks to the implementation of new control and automation devices (retrofit). A choice of plant modernization as opposed to the purchase of a new technology, with obvious advantages such as reduced cost and a shorter plant shutdown.
Although it is always recommended to contact an expert in the field of regulations and industrial design, we are going to define some preliminary aspects to understand when to modernize industrial plants and machinery with a industrial revamping process.
The revamping hypothesis is in fact an alternative to the purchase of new machinery, therefore it can arise from arguments such as these:
Depending on the type of machinery, it is essential to evaluate how much the resolution of critical issues is possible with revamping and retrofit processes and how convenient it is.
Let’s see a case study in which a mixer for liquid chemical products (potentially explosive) presented several critical issues.The machinery, built in 2001, complied with the standards in force at the time (Machinery Directive) and:
The machine interested, however, was adequate in terms of productivity and interface with the rest of the plant. In consideration of the fact that a new machinery with equivalent performances has a cost of approximately 85.000€, we proceeded to evaluate the costs associated with the necessary revamping measures.
The measures contemplated for the adaptation to the current EHSRs in terms of protection against the risk of explosion (A), automatically resolved two more critical issues, namely the modifications to the control desk (B) and the wear and tear of the moving parts (C), with expenses shown in the following table.
There is a noticeable 57.000€ reduction of the expenses, which does not account for the plant shutdown and the costs of disposal in case of replacement with a new machine. Revamping, in this case, is very convenient.
Contact us if you want to increase production without changing plant.
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