Our standard auger-driven transport system Ground Hopper provides reliable conveying of powders such as calcium carbonate blends, ATH blends, as well as granules and other fine particle or lightweight fillers to fill the metering hoppers of Autocaster™ and Batchmaster metering machines. Does not include self-metering. Optional Control systems can be added for additional capability.

This all new Weight-Loss Self-Metering Ground Hopper that utilizes load cells and a sophisticated PLC Control System for highly accurate weight-loss powder metering for a wide variety of metering, batching and conveying applications. Machine control is provided by a PLC-equipped Control Panel.

For applications not involving an Autocaster or Batchmaster system

Control Panel (left) and close-up of display show.

Automated metering of lightweight powder bulk filler over extended distances utilizing a positive pneumatic pressure (air) transport system.

Automatically meter and transfer lightweight filler material over extended distances with a Pneumatic-transport Ground Hopper. This eliminates the requirement for an auger, and allows the Ground Hopper to be placed in a more remote location - out of the way of the Autocaster casting system or the Batchmaster mixing station.

Now, you can supply lightweight powder fillers like CalCarb/Lightweight powder blends and ATH blends to TWO different metering hoppers from a single Pneumatic Ground Hopper with the Dual-Feed model!

Bulk filler handling systems can be integrated with your process or batching system to reduce labor, improve efficiencies, aid in material cost control, and potentially lower overhead costs.

For situations where you need your Ground Hopper to be movable or portable.

In some cases, your bulk filler handling system is not required to be a fixed location, and you may benefit by moving your Gruber Ground Hopper to where you need it for a given use. Portability offers added convenience and added value to your Bulk Filler Handling investment.

Special version Gruber Ground Hopper and Bulk Bag Suspender Frame option for use with the Batchmaster III Metering System.

Designed to handle the demanding requirements of metering large rock or highly abrasive aggregates for polymer concrete and other specialized cast polymer manufacturing applications.

The "Top-Mount" Large Aggregate Ground Hopper is an auger-screw driven conveyor, typically used to convey larger-sized such quartz, pea gravel or small rock up to as large as 3/8" (7 mm) diameter used in Polymer Concrete Casting applications. This machine is normally used to convey fillers to the filler metering hoppers included with Gruber's Autocaster™ continuous casting machine. It can also easily handle smaller aggregates such as sand, granules and very small pea gravel.

The "Top-Mount" Small Aggregate Ground Hopper is an auger-screw driven conveyor, typically used to convey smaller aggregates such as sand, granules and small pea gravel up to 1/8" diameter, as well as granular powders. This machine is normally used to convey fillers to the filler metering hoppers included with Gruber's Autocaster™ continuous casting machine.