Piston Fillers

There are two types of piston fillers that are available namely check valve and rotary valve.

Check Valve Piston Filling Machines

A check valve piston filler works on a check valve principle that opens the infeed valve on the draw stroke then forces the draw side check valve closed while opening the discharge valve on the dispense stroke as can be seen clearly by the animation to the right.

The big advantage of a check valve filling system is it can self prime and draw product directly from a drum or other container without need for pumping or otherwise transferring product to another vessle. Simply drop the hose into the drum, adjust the fill volume and start filling product with excellent accuracy of +/- one half percent.

Check valve piston fillers work well with most any free flowing liquid (meaning it pours easily), but does not work well on thicker products or products with particulates in them as they can foul the valves.

Check valve piston filling machines are available as tabletop models, inline systems or rotary high speed models. Please give us a call so we can review your application.

Rotary Valve Piston Filler

Rotary valve piston filling machines can do all of the "hard" jobs like filling pastes and products with particulates such as cottage cheese, potato salads, peanut butter, salsas and many other chunky products.

The concept is actually rather simple in that the hopper flood feeds the rotary valve which connects between the hopper and cylinder on the draw stroke and then flips ninty degrees between the cylinder and discharge tube on the dispense stroke, as can be seen in the animation on the right. Because the rotary valve can be hollowed out, large particles of up to one half inch (sometimes larger) can pass through without damage.

Rotary valve piston filling systems are available as benchtop, automatic inline, and rotary high speed systems and can be sized for your range of filling needs up to a 10:1 ratio and maintain its amazing +/- one half percent accuracy.

Flow Master Semi-Automatic Check Valve Piston Fillers

Flow Master 250	Flow Master 1000	Flow Master 4000
fills from 25ml to 250ml production - 5 to 50 per min. no hopper needed models up to 10 nozzles can be automated   Video Flowmaster 250	fills from 100ml to 1000ml per cycle smaller volumes with change parts no hopper needed models up to 10 nozzles can be automated many options available	fills from 240ml to 4000ml per cycle smaller volumes with change parts no hopper needed models up to 6 nozzles can be automated many options available

Flow Master Automatic Inline Check Valve Piston Filling Systems

Automatic Flow Master 2 Head Piston Filler

Automatic Flow Master Piston Filler Available 4, 6 or 8 Head Models

10 foot Conveyor (Stainless Steel Construction) Automatic Bottle indexing system Available sizes as above (always use the largest size if smaller sized change parts are needed). All Air Logic, except conveyor motor.  Suitable for Hazardous location with air drive conveyor motor. Speed of 20 - 40 bottles per minute (speeds are determined by bottle size, product, and neck opening) Options:  Diving nozzles, Cutoff nozzles, supply tank with lid, wash down motor, and many more

10 Foot Conveyor (Stainless Steel Construction) Automatic Bottle indexing system All Air Logic, is suitable for Hazardous Location with substituion of standard conveyor motor with air driven motor. Available filling ranges as above 30 Gallon Hopper Options:  Diving nozzles, Cutoff nozzles, supply tank with lid, wash down motor, and many moreOptions:  Diving nozzles, Cutoff nozzles, supply tank with lid, wash down motor, and many more

Fill Master Semi-Automatic Tabletop Rotary Valve Piston Fillers

Fill Master 240 Piston Filler	Fill Master 1000 Piston Filler	Fill Master 4000 Piston Filler
Fills 2 ml to 240 ml (.01oz - 8 oz) Production - 5 to 50 per minute 5 gallon hopper models up to 10 nozzles can be automated many options available	Fills 30  ml to 1000 ml (1oz - 1 Liter) smaller and larger volumes with change parts 12 gallon hopper models up to 10 nozzles can be automated many options available   Video Fillmaster 1000	Fills 240  ml to 4000  ml smaller volumes with change parts 10 or 20 gallon hopper models up to 6  nozzles can be automated many options available

Fill Master Automatic Inline Rotary Valve Piston Fillers

Automatic rotary valve piston fillers are available in models of 2, 4, 6, 8, and 10 head inline machines.  Standard hopper sizes range from 10 to 50 gallon, but all are upgradeable for up to 100 gallon.

Many options are available including: hopper lid, level control, diving nozzle mechanism, product agitator, heated hopper, heated valve block, Teflon product contact parts, wash down motor and controls, positive cut-off valves (of several types).

A typical automatic machine includes a 10 foot stainless steel constructed conveyor, bottle indexing system, and all pneumatic logic, making it very attractive for total washdown or hazardous environments (with replacement of conveyor motor for washdown motor, or air drive motor for hazardous locations).

Call today and our sales engineers will help advise you on the correct machine and options to meet your production requirements.

High Speed Rotary Piston Fillers

For higher speed requirements it is necessary to move away from the inline piston filling systems and instead to rotary filling machines. In this format, filling systems can be designed for an almost unlimited number of production requirements.

To learn more about our high speed piston fillers please go to our rotary filling page.

Oftentimes high speed systems are combined into a sort of monoblock often called dual-modal, or tri-modal where filling and capping (dual) and rinsing (tri) are built on a single platform. To the left is an example of a dual-modal system with a rotary piston filler and capper.