Pump Ink & Filtration Systems

This industry workhorse is low maintenance, takes a lot of abuse, and delivers ink in a non-pulsating flow. Graymills centrifugal models provide in-tank circulation to keep the material in the tank blended. Available with electric or air motors, with a Quick Demountable motor option. Flow is easily controlled by the use of valves, or in the case of air motor models, by the flow of air to the motor.

H/M/G Series Features & Benefits

• Agitor® keeps solids in suspension and maintains proper viscosity
• Tri-Rod Construction eliminates hard-to-clean ink build-up
• Teflon® coated for quick clean up and longer operating life
• Corrosion-resistant stainless steel
• Celcon® Impellers are durable, abrasion resistant, and chemically inert to printing solvents
• Low pump down
• Designed to easily connect with reducer fittings to allow multiple pipe and tubing sizes
• Wide variety of standard and explosion-proof motor options let you configure to your specific press requirements

These air driven pumps operate by the movement of two flexible diaphragms that move back-and-forth, alternately filling and emptying two chambers. As each chamber is emptied, the ink is pushed toward the print deck. A variety of applications are possible, because the inlets and outlets can be configured in different ways. Good for corrugated bottom printers. Pump function produces a pulsating flow, so Graymills surge suppressor filters are strongly recommended.

Features & Benefits

• Diaphragm pump inlets and outlets can be configured to meet the pumping requirements for bottom-printing corrugated lines, flexo, and gravure presses
• The unique slide valve design helps prevent stalling even at low speeds
• Easy maintenance
• No air line lubrication needed
• Self priming with the ability to pump liquids containing small solids

It is amazing how much contamination finds its way into the ink supply. This can lead to quality issues and if the material is metallic or hard (dried water-based ink, blade material, ceramic chips), roll scoring can result. Graymills filters, designed specifically for ink applications, mount inline to prevent contamination from reaching the print deck. A magnet at the inlet of the filter pulls metallic material out of the ink. A 10x-power rare earth magnet is optional for filters and is also available on an adjustable bracket that hangs in the ink container or pan. Surge suppressor models are available for diaphragm and peristaltic pumps.

Features & Benefits

Superflo® ink filters are designed to overcome the typical pressure drop and reduced ink flow due to clogging that occurs with ordinary filters. A permanent magnet (optional rare earth megaMAG available) suspended over the intake port traps ferrous particles which find their way into the ink and diffuses the flow outward into the filter screen flutes. Filtered material is trapped on the inside of the removable/reusable stainless steel filter cartridge.

Stainless steel filter cartridges are available in four different mesh screens recommended for the following applications:

• Corrugated printing: 30 mesh (590 micron)
• Line printing: 60 mesh (250 micron) or 100 mesh (149 micron)
• Process printing: 60 mesh (250 micron) or 100 mesh (149 micron)
• Varnishes, coatings, adhesives: 150 mesh (99 micron) or 250 mesh (58 micron)

Features & Benefits

A rare earth magnet in a smooth stainless steel casing, with 10x the pulling power of a standard magnet; megaMAG™ is able to attract metal particles from within the filter body or ink tank. Unlike other rare earth magnets, megaMAG’s domed end design with no crevices releases particles easily when cleaning.

Retrofits to all existing Superflo® filters and surge suppressors.