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“ For the end user the benefits can include no re-engineering costs, due to like-for-like product replacement and no re-training of operators to use or maintain new equipment ”
of automation equipment are turning to an alternative solution for ageing equipment nearing the end of its serviceable life, namely remanufacture. Remanufacture can effectively extend the useful life of a product. Critically, this option involves the easy exchange of the unit with machine wiring and software systems unaffected. For the user, this means lower risk with no system disturbance. What’s more “REMAN” can offer fast exchange time with the process being carried out by the end-user during planned shutdown which means no loss of production. Large scale unit exchange can be planned and staggered to meet customer schedules. For example, a bank of 4-5 drives can be exchanged in an hour.
Reman’ involves the stripdown and cleaning of units, with wearable parts being replaced with original Rexroth specified components.
Units are updated to the latest levels to achieve optimum performance and reliability characteristic. Once this process is completed, a functional operation test is carried out in accordance with company quality procedures. An extended warranty of two years’ is offered on all remanufactured parts which can be increased to five years if required, subject to conditions.
For the end user the benefits can include no re-engineering costs, due to like-for-like product replacement and no re-training of operators to use or maintain new equipment. What’s more, end users should benefit from reduced manufacturing costs and improved equipment uptime with no increase in spares, which should put a ceiling on capital expenditure.
A further option is called Reman’ +5 which offers end-users a further five years through the unit’s service life. This option not only extends the product lifetime, but also guarantees component parts.
However, an optimum point exists where reman’ is possible (see figure 2). Beyond this point, typically when replacement spares products are no longer available, retrofit is the only answer.
Figure 2: Optimum time for reman
The key issue for end-users however is clearly cost. Whilst investing in new product may offer a cheaper option from a unit cost view, it is important to take into account associated costs. New products will often mean a re- engineered solution, new wiring, production downtime, replacement of all spares and retraining, with the added risks associated with the debugging of new software. Reman’ on the other hand takes out a unit and replaces with a like-for-like unit with all cabling and software being the same, ultimately offering a fast and effective solution.
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