DISCOVER

HOW THE
ZIM-MIXER WORKS

Designed for ultimate flexibility, volumetric concrete mixers carry all concrete ingredients—sand, stone, cement, and water—in individual compartments. This allows for on-demand, on-site mixing that precisely matches your unique concrete mix designs. Whether you choose a truck-mounted or stationary setup, these mixers provide the adaptability to produce concrete perfectly adjusted to any project.

THE ZIM-MIXER
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The Machine

Our patented chain feed delivery system is a positive drive mechanism that accurately and consistently delivers the dry materials to the mix auger. The Zim-Mixer is the only machine that allows for all of the ingredients, dry or liquid, to be run individually while loaded, enabling the mixer to be quickly and easily calibrated as well as off loaded without cross contamination. Our patented system also allows sand, stone, grout, or even pervious concrete to be delivered or produced at any time.

Loading

Each material is loaded into individual compartments. Cement can be loaded by bags, super sacks, or from a silo. Aggregates are typically loaded with a skid steer or a front end loader. Water can be loaded from the top of the unit or from a deck mounted port. Each liquid admixture is also stored in its own tank and dry admixtures have a separate container.

Designing

Independent fine and coarse shutter gates are used to accurately proportion these materials, once calibrated. Each delivery system has been certified to meet the ASTM C685 requirements. Different settings are used to produce specific mixes and can be adjusted on site to meet the customer’s requirements.

Operating

The operator's control panel is located at the rear corner of the machine, allowing for all of the mechanisms to be observed from one place. Each of the systems is activated from this spot, permitting the operator total control of the process.

Mixing

All proportioned materials are brought together at the auger hopper, where the mixing begins. As the materials are continuously fed to this area, the mix auger blends and mixes them into a homogenized product. Mixing paddles along the auger flighting aid in producing thoroughly blended materials.

Placing

The material delivered from your Zim-Mixer has been accurately proportioned to the exact fresh mixture required, and in the exact amount desired. Our auger positioning controls and chute options allows the operator to precisely place the material without additional labor.

Understanding the Volumetric Mixing Process

What is a volumetric concrete mixer, exactly?

A volumetric concrete mixer—also known as a mobile mixer—stores raw concrete ingredients in separate compartments rather than relying on a pre-mixed batch from a central plant. Available as a stationary unit or mounted on a truck or trailer, it mixes continuous concrete on-demand, allowing operators to pause, restart, or adjust the mix at any time.

How do volumetric concrete mixers work?

Volumetric mixers measure each raw ingredient by volume, feeding materials from dedicated bins and tanks through calibrated gates and flow meters directly into the mixing auger. As the auger discharges, it thoroughly blends the materials into a consistent, homogeneous mix—delivering fresh, specification-grade concrete in real time.