Efficient material handling begins with the right combination of mixing capacity and receiving capacity. The Blastcrete D6528 Mixer/Pump brings these two functions together with a 9 cubic foot hydraulic mixer and a 12 cubic foot receiving hopper, creating an integrated system for field batching and pumping.
Designed for field applications, the D6528 can pump up to 12 cubic yards per hour. Its hydraulic spiral mixer, receiving hopper, agitator, and 3-inch squeeze pump work together to move material from the mixing stage to the pumping stage in an organized process.
Understanding the D6528 Mixer/Pump
The D6528 is designed for contractors who need to batch and pump material at the job site. Rather than using independent machines for mixing and pumping, the D6528 combines both operations into one equipment package.
The system starts with a 9 cubic foot hydraulic mixer. After the material has been mixed, the mixer hydraulically dumps into the 12 cubic foot receiving hopper.
From the hopper, the material enters the D6528's 3-inch hydraulic squeeze pump. The pump has variable-speed operation from 0 to 12 cubic yards per hour.
This configuration is particularly suited to gypsum flooring applications, where controlled material mixing and delivery are important parts of the installation process.
9 Cubic Foot Hydraulic Mixer
The 9 cubic foot hydraulic mixer is the primary batching component of the D6528. Its hydraulic spiral mixing system is designed to prepare material in the field before transferring it to the receiving hopper.
A hydraulic dump system allows the mixer to discharge material directly into the hopper. This eliminates the need for manual transfer between the mixing and pumping stages.
The mixer also includes a clean-out door, providing a practical feature for cleaning and routine equipment maintenance.
Key Mixer Features
The D6528's hydraulic mixer includes:
9 cubic foot mixing capacity
Hydraulic spiral mixing system
Hydraulic dump
Mixer clean-out door
Integrated operation with the receiving hopper
The combination of mixing and hydraulic discharge helps create a straightforward material flow through the machine.
12 Cubic Foot Receiving Hopper
Following the mixing stage, material is transferred into the 12 cubic foot receiving hopper.
The hopper provides a larger capacity than the mixer, giving the system additional room to receive material before it enters the pumping stage. A hydraulic agitator is included to help manage material within the hopper.
The receiving hopper serves as the transition point between mixing and pumping. This makes it an important part of the D6528's overall material-handling system.
Receiving Hopper Features
The 12 cubic foot receiving hopper includes:
12 cubic foot capacity
Hydraulic agitator
Direct material transfer from the mixer
Material feeding into the squeeze pump
The combination of the 9 cubic foot mixer and 12 cubic foot hopper creates a coordinated batching and pumping workflow.
How the 9 Cubic Foot Mixer and 12 Cubic Foot Hopper Work Together
The D6528's material-handling process can be summarized in four stages.
1. Mixing
Materials are prepared in the 9 cubic foot hydraulic mixer.
2. Hydraulic Dumping
Once mixing is complete, the hydraulic system dumps the material into the receiving hopper.
3. Hopper Management
The 12 cubic foot receiving hopper holds the material and uses a hydraulic agitator to assist with material management.
4. Pumping
The material is transferred through the 3-inch hydraulic squeeze pump and delivered toward the application area.
This integrated workflow allows the D6528 to perform field batching and pumping with one machine.
3-Inch Hydraulic Squeeze Pump
After the material reaches the receiving hopper, it is pumped through a 3-inch hydraulic squeeze pump.
The pump is driven by a heavy-duty planetary gearbox and offers variable-speed operation. Its output can range from 0 to 12 cubic yards per hour.
Variable pumping speed gives operators the ability to control material delivery according to the requirements of the project and operating conditions.
The D6528 also uses pumping tubes designed for long service life, supporting repeated pumping operations.
D6528 Specifications
Specification D6528
Length 204 inches
Width 88 inches
Water Tank Height 89 inches
Mixer Height — Dump Position 86 inches
Charging Height 48 inches
Output Capacity 0–12 cubic yards per hour
Mixer Capacity 9 cubic feet
Receiving Hopper Capacity 12 cubic feet
Pump Size 3 inches
The machine's dimensions and capacities should be considered when planning transportation, equipment placement, and job-site access.
Why Mixer and Hopper Capacity Matters
The relationship between mixer capacity and hopper capacity is important in an integrated batching system.
The 9 cubic foot hydraulic mixer provides the material preparation capacity, while the 12 cubic foot receiving hopper provides space for the mixed material before pumping.
Because the hopper has a larger stated capacity than the mixer, it can accommodate the material discharged from the mixer while providing a dedicated stage between mixing and pumping.
This arrangement helps separate the mixing and pumping stages within the same machine while maintaining a continuous material-handling process.
D6528 for Gypsum Flooring Applications
The D6528 is a popular solution for gypsum flooring applications. Its combination of hydraulic mixing and pumping allows contractors to prepare and transport compatible gypsum flooring materials directly at the job site.
The 9 cubic foot mixer provides field batching capability, while the 12 cubic foot receiving hopper and 3-inch squeeze pump support material delivery.
For specific gypsum products, contractors should always follow the material manufacturer's requirements for mixing, consistency, pumping, application, and curing.
Power Options
The D6528 is available with two primary power configurations.
Kubota V1505 Diesel
The diesel configuration uses a Kubota V1505 29 HP water-cooled diesel engine. This provides an independent engine-powered option for field applications.
30 HP Electric Motor
An electric configuration is also available with a 30 HP electric motor with starter and disconnect.
The appropriate power option can depend on job-site conditions, electrical availability, transportation considerations, and contractor requirements.
Available Options
Contractors can configure the D6528 with several additional options:
Pendant or wireless remote
150-gallon water tank with 2-inch flow meter
Mounted spare tire
Hydraulic pressure washer
Dual axles
Mounted air compressor
These options can help adapt the machine to different field operating conditions.
Maintenance and Cleaning
Regular cleaning and maintenance are important for equipment that handles pumpable flooring materials.
The D6528's mixer clean-out door provides access for cleaning the mixing system. Operators should also maintain the hopper, pump, pumping tubes, and hydraulic components according to the manufacturer's recommended procedures.
Proper cleaning after use can help prevent material buildup and support reliable future operation.
A Complete Mixing and Pumping System
The D6528 combines a 9 cubic foot hydraulic mixer, a 12 cubic foot receiving hopper, and a 3-inch hydraulic squeeze pump in one integrated machine.
This configuration provides contractors with a complete path from field batching to material pumping:
9 cubic foot mixer → 12 cubic foot receiving hopper → 3-inch squeeze pump → application area
The variable pump output of 0 to 12 cubic yards per hour adds flexibility to the material delivery process.
D6528 with a 9 Cubic Foot Hydraulic Mixer and 12 Cubic Foot Receiving Hopper
