What Is the Cemen Tech CD2 Volumetric Mixer?

The Cemen Tech CD2 Volumetric Mixer allows contractors to produce fresh concrete on demand, directly at the jobsite. Instead of committing to a full ready-mix truckload, operators can batch the exact amount needed, helping reduce waste, eliminate unnecessary trips, and maintain greater control over concrete quality and production schedules.

4Rivers Equipment's Bret Bollmeier demonstrates the Cemen Tech CD2 during a live concrete pour in Commerce City, Colorado, showcasing how volumetric concrete mixing can help contractors improve flexibility, efficiency, and jobsite productivity.

Seeing the Cemen Tech CD2 Volumetric Mixer in Action

Concrete projects rarely go exactly as planned.

Weather conditions change. Crews move faster or slower than expected. Concrete quantities fluctuate. When that happens, traditional ready-mix deliveries can leave contractors with excess material, costly delays, or additional trips to the batch plant.

The Cemen Tech CD2 addresses those challenges by allowing operators to produce fresh concrete precisely when and where it's needed.

In this live demonstration, Bret Bollmeier walks through the CD2's features, material handling systems, controls, and concrete production process during an actual pour.

For contractors looking to improve efficiency while reducing waste, seeing the machine operate under real jobsite conditions provides valuable insight into how volumetric concrete production works.

Why Are Contractors Switching to Volumetric Concrete Mixers?

One of the biggest advantages of a volumetric concrete mixer is flexibility.

Unlike traditional ready-mix trucks that carry pre-mixed concrete, a volumetric mixer stores raw ingredients separately and combines them only when concrete is needed.

This approach gives contractors greater control over:

• Concrete quantity
• Mix design consistency
• Production timing
• Material utilization
• Jobsite logistics

When project requirements change, operators can immediately adjust production without waiting for another delivery or worrying about leftover material hardening in the truck.

For contractors managing multiple pours, remote projects, utility work, municipal construction, or infrastructure jobs, that flexibility can create significant operational advantages.

How Does the Cemen Tech CD2 Volumetric Mixer Work?

The CD2 keeps concrete ingredients separated until the moment they're required.

Inside the machine, operators store:

• Sand
• Aggregate (rock)
• Cement
• Water
• Supplementary cementitious materials
• Admixtures

Using the machine's automated controls, the system measures each ingredient and combines them in real time before delivering fresh concrete through the auger system.

Because the material is batched as needed, contractors can produce a small amount for a minor project or continue mixing for larger pours without interruption.

This helps eliminate one of the most common sources of waste in concrete construction: over-ordering material.

What Are the Key Features of the Cemen Tech CD2 Volumetric Mixer?

The CD2 was designed to help contractors simplify concrete production while maintaining consistent quality.

Cemen Tech CD2 Specifications

• Carrying capacity: 8 to 10 cubic yards
• Material capacity: Up to 10 cubic yards
• Water tank capacity: 510 gallons
• Cement bin capacity: 115 cubic feet
• SCM bin capacity: 80 cubic feet
• Separate storage for supplementary cementitious materials
• AP-Touch™ touchscreen control system
• Auto-Washout™ automated cleanup system
• 170-degree auger swing with Auto-Stow™
• 360-degree swivel discharge chute
• Automated admixture systems with digital flow meters
• Precision volumetric batching technology

Together, these features help operators maintain accuracy while simplifying day-to-day production.

How Does the AP-Touch™ Control System Improve Concrete Production?

Producing a consistent concrete mix starts with controlling the inputs.

The AP-Touch™ control system allows operators to choose and manage mix designs directly from the machine interface.

This enables crews to:

• Select preprogrammed mix recipes
• Monitor production
• Adjust output as needed
• Track material usage
• Maintain consistency between loads

When contractors need multiple mix designs on a single project, the ability to quickly switch between recipes can improve efficiency and reduce downtime.

How Does the CD2 Help Reduce Concrete Waste?

Concrete waste impacts both profitability and sustainability.

Because the CD2 mixes concrete only when it's needed, contractors can avoid producing excess material that would otherwise require disposal.

Waste Reduction Benefits

• Produce only the quantity required
• Reduce returned concrete
• Minimize material loss
• Lower transportation costs
• Reduce jobsite cleanup

For many contractors, waste reduction alone can create significant cost savings over time.

What Makes the CD2 Valuable for Changing Jobsite Conditions?

Construction rarely follows a perfect schedule.

Field conditions often require adjustments to volume, timing, or mix design.

The Cemen Tech CD2 provides flexibility by allowing operators to:

• Increase or decrease production instantly
• Modify output based on demand
• Produce multiple quantities throughout the day
• Adapt to schedule changes
• Respond to evolving field conditions

This level of control can help crews stay productive without relying on additional material deliveries.

How Does the Split-Bin Design Improve Mix Flexibility?

One standout feature of the CD2 is its split-bin configuration.

The machine includes dedicated storage areas for cement and supplementary cementitious materials (SCMs), such as fly ash.

This allows contractors to create specialized concrete mixes designed to meet specific project requirements.

Depending on the application, SCMs may help support:

• Performance requirements
• Mix consistency
• Project specifications
• Material flexibility

For contractors working on municipal, commercial, or infrastructure projects, this added versatility can be a major advantage.

What Happens During the Live Concrete Pour?

During the demonstration, Bret shows the complete production process from material storage to final placement.

Viewers will see the CD2:

• Select an established mix design
• Produce approximately 0.28 cubic yards of concrete
• Continuously mix material through the auger system
• Adjust production in real time
• Deliver fresh concrete on demand
• Complete the washout process after production

The demonstration offers a practical look at how volumetric concrete mixing functions in a real-world environment rather than a controlled showroom setting.

Why Contractors Work with 4Rivers Equipment for Concrete Equipment Solutions

At 4Rivers Equipment, we've spent decades helping construction professionals find equipment solutions that improve productivity, control costs, and keep projects moving.

Our team works closely with contractors across Colorado, New Mexico, and Texas to understand jobsite challenges and recommend equipment that aligns with operational goals.

Whether you're evaluating volumetric concrete mixers, looking to reduce concrete waste, or searching for more flexible production capabilities, our equipment specialists can help you determine whether a solution like the Cemen Tech CD2 fits your operation.

Our focus is never simply on equipment. It's on helping customers solve real jobsite challenges more efficiently.

Watch the Cemen Tech CD2 Volumetric Mixer Demonstration

If you're researching volumetric concrete mixers, mobile concrete production, or on-demand concrete solutions, this episode of The FourCast provides an up-close look at how the Cemen Tech CD2 performs during a live pour.

See the machine in action and learn how contractors are using volumetric technology to gain more control over quality, production, and project schedules.

To learn more about available equipment, request a demonstration, or discuss your concrete production needs, contact your local 4Rivers Equipment representative.

Common Questions About the Cemen Tech CD2 Volumetric Mixer

What is a volumetric concrete mixer?

A volumetric concrete mixer stores raw materials separately and mixes concrete on demand at the jobsite, allowing operators to produce the exact quantity needed.

How much concrete can the Cemen Tech CD2 carry?

The CD2 offers an 8 to 10 cubic yard carrying capacity, with up to 10 cubic yards of material storage.

Does the Cemen Tech CD2 reduce concrete waste?

Yes. Because concrete is mixed only when needed, contractors can avoid excess production and reduce leftover material.

Can the CD2 change mix designs during a project?

The AP-Touch™ control system allows operators to select and manage mix designs, providing flexibility for different project requirements.

What types of contractors benefit from a volumetric concrete mixer?

Utility contractors, municipalities, infrastructure crews, commercial construction companies, and concrete professionals often benefit from the flexibility and efficiency provided by volumetric concrete production.

Is the Cemen Tech CD2 available through 4Rivers Equipment?

Contact your local 4Rivers Equipment representative to learn about equipment availability, demonstrations, and solutions for your operation.