customer-service

Take three: Strategies for spindle failures

Motor spindles play a main role in the machining process. This is because workpiece quality, productivity and occupational safety all depend on the motor spindles‘ level of reliability and availability. The Starrag Group therefore not only develops and constructs tailored spindles, but offers a corresponding three-stage spindle overhauls tailored to customer requirements. 

The “job description” actually sounds rather simple: The main task of the spindle is to provide speed with a perfectly coordinated torque. However, customers realise how important the performance of this task is when the spindle, which is the heart of all tool machines, does not functional optimally or even at all. “We ensure the productivity of our customers’ production processes, because our team makes sure that there is a high and stable availability of Starrag machines,” says Günther Eller, Manager of the Starrag Group’s Customer Service business unit. “Particular importance is placed on our repairs and logistics solutions, which ensure a rapid replacement in the event of a spindle failure”.

Online it is possible for a machine tools customer to fi nd hundreds of overhaul service providers within a fraction of a second. So why the Starrag Group? As a manufacturer of motor spindles, the Swiss-based Group has a significant amount of experience and expertise in overhauls. The fact that competence and responsibility are provided from a single source and that there is a contact partner for all aspects of the machine is testament to service with highly qualifi ed personnel and manufacturer quality. Since the use of spindles is as varied as the areas of application of the Starrag Group’s machine tools, the company also focuses on variety when overhauling spindles: In the event of a failure, an express overhaul or a spindle replacement can be offered.

Furthermore, three overhaul concepts that are tailored to customer requirements have been developed: Under the term ESSENTIAL, a repair is offered where the Starrag Group replaces bearings, seals, the rotary transmission and the clamping set. Eller: “This option offers you the possibility of having your motor spindle overhauled by our qualified specialist at minimal expense”. Four plus points speak in favour of ESSENTIAL: cost-effective spindle repairs, overhaul by qualified specialist personnel, exclusively original replacement parts are used and a long manufacturer warranty (spindle service life: 6,000 hours) for the replaced components. 

PRIME is the name of the second type of overhaul, in which the Starrag Group offers between 36 months (18,000 operating hours) and 12 months (6,000 operating hours) for a spindle with a full manufacturers warranty, on a sliding cost scale. In this case, the customer pays a price that is dependent upon the actual service life. The availability guarantee for a replacement spindle ensures that companies no longer have to purchase a second spindle as a precaution. Eller: “We now rely more on a well-conceived and reliable, globally pre-installed logistics process – rather than part stocking by customers, which in most parts is not very successful and expensive.”

Equally well-conceived is the FLAT RATE with its predictable fixed costs: The customer is given the option of an immediate, guaranteed replacement of faulty spindles for a fixed, flatrate annual fee. Within 24 hours, the exchange pool will send a replacement spindle that is like new. 

In addition, COLLISION PROTECTION is also offered: Collision protection systems protect machine tools against machine collisions and signifi cantly reduce the number of unscheduled spindle failures. Collision protection is also suitable for retrofi tting on machine tools. However, if a spindle fails within 24 months (or 14,000 spindle operating hours) despite the collision protection, the Starrag Group will offer a crash discount of 20 % on an as-new replacement spindle. 

But which type of overhaul should our company choose? Offer from Günther Eller, Manager of the Customer Service business unit: “We are happy to provide you with advice regarding which maintenance measures are most appropriate for your motor spindles”.