The World's Leading Technology In Color Management For Plastics.

We have been designing and engineering equipment for the plastics industry for the past 40 years.
Take a look at our products and get in touch to find out more.

RIVERDALE GRAVIMETRIC SYSTEM (RGS)

The RGS provides the greatest amount of accuracy and control available, which can reduce color usage and lower costs. The RGS is easy to set up and use. Calibration is not required. Our gravimetric system makes automatic metering adjustments as needed. Color change is quick and easy. The RGS can use 5 gallon pails, 30 gallon drums, or totes.

PUMP IN A DRUM (PIAD)

Every container delivered to your facility has its own pump, installed permanently in the drum or pail. The containers are sealed and never need to be opened. You can send back the empty containers through our Return For Refill™ program, which will save you money and help the environment. Pump-In-A-Drum (PIAD) is proven technology, in use by Riverdale for more than 10 years.

COLOR DELIVERY TUBES

Each color has its own tube. To minimize color lost, delivery tubes are reusable, durable. and long lasting. Equipped with quick change connectors, color changes are easy and clean. Delivery tubes are sealed with shutoffs at both ends to eliminate dripping.

THROAT ADAPTER PLATES

Custom made plates fit your machine to properly meter color into your process. Quick change connectors keep your color changes simple and clean. Now sealed to eliminate the dripping common with other designs.

PRE-MIXERS

Pre‑Mixers automatically and continuously provide thorough mixing of resin, regrind and additives as they enter the throat of the process machine. Our pre‑mixers are customized to fit your processing machine and have various throughput ranges to meet your requirements. Each of our pre‑mixers accept Riverdale Global's quick mount, patented liquid nozzle for precise liquid dose location.

MIXING NOZZLES

For applications with maximized shot sizes or limited screw/barrel mix capabilities, Riverdale Global offers customized mixing nozzles and pre‑mixers. In addition to optimized mixing, our nozzle offering can also incorporate melt filters to protect valuable hot runner systems from the risk of tramp metal contamination.

SPACER FRAMES

Our spacer frames are made from 1/4" steel and can support the weight of a hopper and loader, so they can be mounted directly over the feed throat. Color is metered in by a removable nozzle. Inside the frame, a canopy directs resin to either side the nozzle to help prevent color and resin clumping together. The spacer /  nozzle option is a good solution in situations where a slide gate prevents us from metering into the throat directly over the screw. By using a removable color nozzle, this is also a good option if you frequently change from using color to running natural resin.

PERSTALTIC, MS4

The MS4 patented Maguire peristaltic pumps are designed to accurately meter precise amounts of liquid color into the main flow of natural material directly for both molding and extrusion applications.

RGINFINITY™ REFILL OPTIONS

Refill options minimize press downtime caused by material handling, or changing out empty color containers. Built in features on our RGS controller automatically signal a refill pump to transfer material from a local or remote container to top off the color supply to the pail or drum located on the RGS platform. This option is good for presses that run extended production using a single color.