The reliable insulation of stator windings with surface insulating materials is indispensable for the separation of electrical potentials (insulation of the winding against the stator laminations), for the effective dissipation of heat loss to protect against overheating as well as for the mechanical fixation of the windings (closure of the stator slot). The so-called slot ground insulation also serves to protect the winding wire from sharp edges of the laminated core.
Faulty insulation can lead to minimised performance, a shorter service life or, in the worst case, to short circuits and thus to motor failure. To increase the efficiency of the electric motor, it is crucial to increase the slot fill factor. For this reason, modern insulation materials are becoming thinner and thinner and therefore more susceptible to damage. The quality of the insulation is therefore an important factor in fully meeting the requirements of the electric motor in terms of efficiency, reliability and service life.
The sophisticated machines from Schaeffler ELMOTEC STATOMAT for slot insulation ensure that the surface insulation materials are joined without damage and in the correct position for complete insulation of the stator slot. Our solutions fulfil the production steps of cutting the insulation paper, forming and folding the insulation sleeves and inserting the sleeves into the slot. The slot insulation can be flexibly designed with or without a collar (protects against slipping of the surface insulation material during the winding and drawing-in process).
Our slot insulation machines are designed for both vertical and horizontal loading and are available as stand-alone machines with manual loading or as an integral part of a fully automated production line. Our standard range includes slot insulation machines for pack heights from 18 to 500mm. Other pack heights are available on request.
This machine series is ideal for applications with different groove shapes.
This machine type is specially developed to cover a maximum variety of variants and is suitable for the isolation of prototypes up to fully automatic large-scale production.
Our extensive equipment portfolio, consisting of winding machines, insertion machines, forming machines and lacing machines, completes the process chain for the production of stators.
Innovative winding technology for the production of compact electric motors with maximum efficiency is a decisive building block for sustainable drive solutions in industry and e-mobility. With sophisticated automation solutions, these drives can already be realised today.