The Draper Expert 56G Polycarbonate Automatic Grease Feeder is a precision lubrication device designed for stationary machinery requiring consistent, low-pressure grease application. This compact automatic feeder delivers grease at a constant discharge rate of 1-2 PSI through its 1/8" BSPT threaded connection, eliminating the need for manual regreasing on suitable equipment. The transparent polycarbonate body allows instant visual monitoring of grease levels and simplifies maintenance, with inline refilling achieved using any standard grease gun. Compatible with NLGI 0 to NLGI 4 specification greases, the unit operates reliably across an impressive temperature range of -23°C to 121°C, making it suitable for both cold stores and heated production environments. Versatile mounting capabilities allow installation in any orientation—horizontal, vertical, or inverted—ensuring constant lubrication regardless of machinery configuration. Three interchangeable springs (blue for light, silver for medium, and red for heavy applications) enable precise feed rate adjustment to match different grease viscosities and ambient temperatures. Ideal for conveyors, presses, packaging equipment, and other non-vibrating machinery where automatic lubrication reduces maintenance intervals and prevents bearing failure. Features and Benefits: • Optimum amount of grease applied at a constant discharge of 1-2 PSI • Inline refilling by using a standard grease gun • Suitable for use with NLGI 0 to NLGI 4 grease • Designed for use on machinery with no vibration • Supplied with three springs for adjusting the feed rate ideal for different viscosities and operating temperatures • Can be mounted in any position including horizontal, vertical or upside down Contents: 1 x Polycarbonate Automatic Grease Feeder, 56g/2oz