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Keller-Heartt has Truegard Propylene Glycol Heat Transfer Fluids in both Inhibited and Food Grade! Order Today!
Propylene Glycol Available. Order Today!

Frequently asked questions

Find answers to common questions about our products and services
  • Bar feed oil is a specialized lubricant designed for automatic bar feeding systems used on CNC lathes, Swiss-type machines, and multi-spindle screw machines. It lubricates the bar stock as it travels through guide bushings and collet areas, reducing friction and preventing galling or surface damage during the feeding process.

  • This oil is intended for use with automatic bar feeders paired with CNC turning centers, Swiss-type lathes, and multi-spindle screw machines that rely on a continuous oil bath or circulating lubrication system to coat bar stock as it feeds.

  • Bar feed oil is generally dispensed through the bar feeder's built-in oil reservoir or recirculating lubrication system, which continuously coats the bar stock as it advances through the feed channel and into the machine spindle - it is not a manual hand-applied lubricant.

  • A 55-gallon drum is best suited for high-volume production environments running bar feeders continuously, as it reduces the frequency of refills and typically lowers the per-gallon cost compared to pails or jugs. Shops with lower throughput may find a smaller container size more practical to avoid extended storage of opened product.

  • A full Technical Data Sheet (TDS) for TRUEGARD Bar Feed Oil is available via the product listing and outlines the key performance properties, application guidance, and handling information you should review before use.