Choosing the right mixer pump can make a significant difference in field batching and material placement operations. The Blastcrete D6528 Mixer/Pump combines a hydraulic spiral mixer, receiving hopper, and squeeze pump into one integrated machine designed for field batching and pumping.
With a rated output of 0-12 cubic yards per hour pump capacity, the D6528 provides variable pumping control for compatible materials. It is also available as a diesel mixer pump configuration using a Kubota V1505 29 HP water-cooled diesel engine.
D6528 Mixer/Pump Overview
The D6528 is designed to handle material from the initial mixing stage through pumping. Its system includes a 9 cubic foot hydraulic spiral mixer that hydraulically dumps into a 12 cubic foot receiving hopper.
Once the material enters the hopper, it is transferred through a 3-inch hydraulic squeeze pump. The pump has variable speed operation from 0 to 12 cubic yards per hour.
This integrated configuration makes the D6528 suitable for field batching and applications such as gypsum flooring, subject to the requirements of the material being used.
0-12 Cubic Yards Per Hour Pump
One of the key characteristics of the D6528 is its 0-12 cubic yards per hour pump capacity.
The variable-speed pumping system allows the operator to adjust material delivery within the machine's rated range. This can provide flexibility when project requirements call for different pumping rates.
Actual output can vary depending on factors such as:
Material characteristics
Mix consistency
Pumping distance
Hose configuration
Elevation
Job-site conditions
Application requirements
The 0-12 cubic yards per hour specification represents the machine's stated output range rather than a guaranteed production rate under every operating condition.
3-Inch Hydraulic Squeeze Pump
The pumping stage of the D6528 uses a 3-inch hydraulic squeeze pump driven by a heavy-duty planetary gearbox.
The pump receives material from the receiving hopper and transfers it through the pumping system. Its variable-speed design allows output to be adjusted from 0 to 12 cubic yards per hour.
The D6528 also uses pumping tubes designed for long service life, helping support repeated pumping operations when properly maintained.
Diesel Mixer Pump Configuration
For projects requiring an engine-powered machine, the D6528 can be configured as a diesel mixer pump.
The diesel power option uses a:
Kubota V1505 29 HP water-cooled diesel engine
An engine-powered configuration can provide an independent power source for field applications where an appropriate electrical supply may not be available.
The diesel configuration powers the equipment's operating systems and supports the integrated mixing and pumping process.
9 Cubic Foot Hydraulic Spiral Mixer
Before the material reaches the pump, it is prepared in the D6528's 9 cubic foot hydraulic spiral mixer.
The mixer is designed for field batching and includes a hydraulic dump system. After the mixing cycle is complete, the mixer discharges directly into the receiving hopper.
The mixer also features a clean-out door to assist with post-operation cleaning.
Mixer Features
9 cubic foot capacity
Hydraulic spiral mixing
Hydraulic dump
Clean-out door
Direct discharge into the receiving hopper
This configuration provides a direct connection between material preparation and pumping.
12 Cubic Foot Receiving Hopper
The D6528 uses a 12 cubic foot receiving hopper between the mixer and pump.
The hopper receives material from the hydraulic mixer and includes a hydraulic agitator. This creates an intermediate material-handling stage before the mixture enters the squeeze pump.
The material flow can be summarized as:
9 cubic foot mixer → hydraulic dump → 12 cubic foot hopper → 3-inch squeeze pump
This integrated process keeps mixing and pumping within one equipment package.
How the D6528 Works
The D6528 follows a straightforward field-batching sequence.
Step 1: Batch and Mix
Materials are loaded into the 9 cubic foot hydraulic spiral mixer and mixed according to the applicable material requirements.
Step 2: Hydraulic Discharge
The completed mix is hydraulically dumped into the 12 cubic foot receiving hopper.
Step 3: Hopper Agitation
The hydraulic agitator helps manage the material in the receiving hopper before pumping.
Step 4: Pumping
The 3-inch hydraulic squeeze pump moves the material through the pumping line.
Step 5: Adjust Output
The variable-speed pump can be operated from 0 to 12 cubic yards per hour, within the rated operating range.
Diesel Power vs. Electric Power
The D6528 offers two primary power configurations.
Kubota V1505 Diesel
The diesel option uses a Kubota V1505 29 HP water-cooled diesel engine.
This configuration can be useful for field operations where an independent engine-powered system is preferred.
30 HP Electric Motor
The alternative configuration uses a 30 HP electric motor with starter and disconnect.
This option may be suitable for job sites with compatible electrical service.
The appropriate configuration depends on the project's power availability, operating environment, transportation needs, and contractor requirements.
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 3-inch hydraulic squeeze pump
These specifications provide important information when evaluating the D6528 for transportation, equipment placement, and production planning.
Features of the D6528
The D6528 combines several material-handling components into one machine.
Hydraulic Spiral Mixer
The 9 cubic foot mixer provides field batching capacity and hydraulic discharge.
Hydraulic Receiving Hopper
The 12 cubic foot hopper includes a hydraulic agitator for material management before pumping.
Hydraulic Squeeze Pump
The 3-inch squeeze pump provides variable output up to 12 cubic yards per hour.
Heavy-Duty Gearbox
The squeeze pump is driven by a heavy-duty planetary gearbox.
Long-Life Pumping Tubes
The equipment uses pumping tubes designed for extended service life.
D6528 for Gypsum Flooring
The D6528 is a popular solution for gypsum flooring applications. Its combination of field mixing and pumping allows compatible gypsum flooring materials to be prepared and transferred from the job site.
The integrated system can reduce the need for separate mixing and pumping equipment while providing variable material delivery.
When using the D6528 with a particular gypsum product, contractors should follow the material manufacturer's requirements for mixing, consistency, pumping, placement, and curing.
Available Options
The D6528 can be equipped with several available 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 allow contractors to configure the machine according to their specific field requirements.
Benefits of a Diesel Mixer Pump
A diesel mixer pump can provide practical advantages for field operations where engine-powered equipment is preferred.
Independent Engine Power
The diesel configuration provides an engine-powered operating system without depending on a job-site electrical connection for the primary equipment power source.
Field Batching
The D6528 combines mixing and pumping capabilities in one machine.
Variable Pumping
The 0-12 cubic yards per hour output range provides adjustable material delivery.
Integrated Material Flow
The mixer, receiving hopper, and squeeze pump work together as one material-handling system.
Maintenance Considerations
Proper maintenance is important for reliable operation of a mixer pump. Operators should follow the manufacturer's recommended procedures for cleaning, inspection, lubrication, and servicing.
Important areas to monitor include:
Mixer and clean-out door
Receiving hopper
Hydraulic agitator
Pumping tubes
Squeeze pump
Hydraulic components
Diesel engine or electric motor
Material delivery lines
Cleaning the equipment after use can help minimize material buildup and support consistent future operation.
D6528 0-12 Cubic Yards Per Hour Pump and Diesel Mixer Pump
