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EPAF for pumping coolant lubricants
 

Cooling lubricant delivery with variable speed electric motor - pump unit EPAF

Large working range for the delivery of coolant lubricant with an EPAF unit (drill characteristic curve)
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Machine tools are becoming more and more powerful. This also means that the requirements placed upon the cooling lubricant circuits in the machines are also increasing.

Voith Turbo offers an innovative system for the delivery of cooling lubricants:

The EPAF variable-speed motor pump unit with the IPNE/IPME internal gear pump which was specially developed for the delivery of low-viscosity media. Due to its renowned high efficiency, the IPME pump type is particularly suited as a delivery pump for the cooling lubricant circuit in machines with internally cooled tools. A pressure-dependent drive speed control allows cooling lubricant to be delivered as and when it is required. Pressures up to 100 bar can be generated.


Comparison of efficiency between a Voith IPME internal gear pump and screw pumps.

Benefits that impress:

 EPA/EPAF unit with internal gear pump type IPNE/IPME
Feature Benefits

Significantly higher efficiency than in conventional cooling lubricant feed systems with screw pumps

One internal gear pump covers a considerably larger working range (pressure, delivery)

Accurate attainment of the most varied operation points of the tools (drill characteristic curve)
Less coolant and reduced cooling capacity in the cooling lubrication circuit
Improved energy efficiency
Reduced energy consumption
Lower connection power

Reduced operating costs

One internal gear pump replaces several screw pumps Component reduction (no control valves)
Lower probability of failure
Lower and adapted speeds Low noise emissions
Internal gear pump has a compact design Less space required
Supply of cooling lubricant to the tool controlled by pressure Automatic wear compensation
Automatic wear detection
Product information for the IPNE/IPME internal gear pump
Product information for the EPAF variable-speed motor pump unit
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