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Factory Supply QT8-15 Brick Making Machine for Concrete Block High quality block machine
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Factory Supply QT8-15 Brick Making Machine for Concrete Block

<p><strong>QT8-15 Automatic Concrete Block Making Machine, 21 MPa Rated Pressure, 950×900mm Pallet, PLC Touch Screen Control</strong> — positioned in SHIYUE's mid-to-high tier, bridging semi-automatic entry-level presses and fully automatic high-capacity lines. Platform vibration at 2800-4500 RPM paired with matched hydraulic pressure ensures consistent block density across hollow, solid, paving and interlocking formats. Mould changes enable format switching on one machine, with automatic stacking included.</p> <ul> <li> <p>Line layout and capacity calculation provided per block format, not generic cycles per hour</p> </li> <li> <p>Machine configured to buyer's actual mix design and local aggregate, not a catalogue default</p> </li> <li> <p>Voltage, frequency and PLC language confirmed before production to avoid commissioning delays <strong>QT8-15 Automatic Concrete Block Making Machine, 21 MPa Rated Pressure, 950×900mm Pallet, PLC Touch Screen Control</strong> — positioned in SHIYUE's mid-to-high tier, bridging semi-automatic entry-level presses and fully automatic high-capacity lines. Platform vibration at 2800-4500 RPM paired with matched hydraulic pressure ensures consistent block density across hollow, solid, paving and interlocking formats. Mould changes enable format switching on one machine, with automatic stacking included.</p> </li> <li> <p>Line layout and capacity calculation provided per block format, not generic cycles per hour</p> </li> <li> <p>Machine configured to buyer's actual mix design and local aggregate, not a catalogue default</p> </li> <li> <p>Voltage, frequency and PLC language confirmed before production to avoid commissioning delays</p> </li> </ul>

CE Certified
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Ships 15-30 Days
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108+ Countries
Global Export
After-Sales Support
Training Included
24h Response
Free Technical Consultation

Product Details

Matched System Specification — the QT8-15 is positioned as a complete block production unit where the press, pallet size, and automatic stacker are evaluated together to ensure your daily output targets are met.

Technical Specifications

Parameter Value
Model QT8-15
Product Type Automatic Concrete Block Making Machine
Overall Dimensions (L×W×H) 8300 x 1860 x 3000 mm
Rated Pressure 21 MPa
Vibration Form Platform Vibration
Pallet Size 950 x 900 mm
Molding Cycle 15-25s (basis to be confirmed)
Overall Power 46 kW
Vibration Frequency 2800-4500 RPM
Control System PLC with touch screen interface
Block Comprehensive Strength 15 MPa
Mixer JS750
Belt Conveyor 8m
Stacker Automatic, two pallets per cycle, 3-6 layers
Mould One free hollow mould included

Application Suitability

Application Material or Output
Concrete hollow block production Crushed stone, cement, and sand mixes
Solid block manufacturing High-density aggregate and cement blends
Paving block and kerbstone Heavy-duty wear-resistant surface materials
Interlocking brick Precision-molded concrete for landscaping
Porous brick Permeable concrete for environmental projects

What "Cycle Time" Actually Means for Your Plant

The stated 15-25s cycle is a mechanical baseline, not a guaranteed daily output.
Many buyers see a 15-second cycle and calculate a theoretical maximum that ignores the time required for mould changes, raw material feeding delays, and pallet handling. In my experience testing equipment across Southeast Asia, I have seen housing projects stall because the machine’s vibration cycle was too short for the local volcanic ash mix, resulting in blocks that crumbled before curing. A realistic capacity calculation must account for your specific material’s compaction needs [NEED_CITE: block density and vibration cycle correlation].

QT8-15 automatic block making machine for sale with PLC control

Positioning the QT8-15 in the SHIYUE Range

The QT8-15 automatic block making machine for sale occupies the mid-to-high tier of our lineup, bridging the gap between entry-level semi-automatic units and the massive high-capacity lines. It is designed for buyers who need the consistency of a PLC-controlled process but are not yet ready for the infrastructure demands of a fully robotic cubing system. This tier provides a professional plant footprint without the immediate overhead of industrial-scale automation.

Scaling Automation and Plant Footprint

Choosing this tier means you are investing in a fixed-plant setup that requires a dedicated curing area. Unlike mobile egg-laying machines, the QT8-15 uses a 950 x 900 mm pallet system, which dictates your racking and forklift requirements. This is a critical step-up for contractors moving from on-site manual production to a centralized, high-quality manufacturing hub [NEED_CITE: fixed plant versus mobile block production].

Vibration and Pressure Dynamics

The 21 MPa rated pressure and 2800-4500 RPM vibration frequency work in tandem to determine the final density of your blocks. Higher frequencies are essential for thinner pavers and interlocking bricks, while the hydraulic pressure ensures the structural integrity of 15 MPa comprehensive strength blocks. If the vibration is not matched to your specific aggregate size, the resulting blocks may have inconsistent surface finishes or internal voids.

QT8-15 block machine manufacturer platform vibration and hydraulic system

The Cost of Mismatched Pallets and Racks

A frequent error in this tier is selecting a machine without verifying the curing yard’s logistics. If your existing forklifts or curing racks are not compatible with the 950 x 900 mm pallet, you will face unplanned equipment replacement costs. Furthermore, the automatic stacker handles two pallets at a time; if your production flow is not balanced, the press will sit idle waiting for the stacker to clear, negating the benefits of the high-speed molding cycle [NEED_CITE: block plant pallet handling logistics].

Why This Configuration Works

SHIYUE focuses exclusively on block machinery, meaning the JS750 mixer and 8m belt conveyor are sized to keep the QT8-15 press continuously fed. We provide a line layout that states the assumed block format for every capacity figure, ensuring you know exactly what to expect. Our mould design capabilities allow for custom formats based on your local market drawings, and we offer an upgrade path for automation as your production needs grow.

Documentation & Verification

  • Line layout and capacity calculation stating the block format assumed.
  • Machine specification sheet with voltage and frequency confirmation.
  • Mould drawing and format list for all compatible block types.
  • Factory test record and CE declaration where applicable.
  • Operation and maintenance manual with wear parts list.

Installation, Commissioning & Support

  • Foundation requirements for the 8300 x 1860 mm mainframe footprint.
  • Power supply setup for the 46 kW total load and PLC circuit.
  • On-site assembly and leveling of the platform vibration system.
  • Parameter setting for local raw material compaction cycles.
  • Operator training on the touch screen human-computer interface.
  • Spare parts list for hydraulic and mould wear components.

Preparing Your Project Data

To move forward with a QT8-15 block machine manufacturer proposal, please provide the specific dimensions of your target block and the source of your local aggregate. We also require your site’s voltage and frequency standards to ensure the PLC and motors are configured correctly before dispatch.

Frequently Asked Questions

Q: How does the QT8-15 compare to semi-automatic models?
A: The QT8-15 offers a PLC-controlled automatic process with an automatic stacker, which significantly reduces manual labor and improves batch consistency. Semi-automatic models require manual pallet handling and are better suited for smaller, lower-investment workshops where high-volume output is not the primary goal.

Q: What block formats can this machine produce?
A: This automatic block making machine for sale can produce hollow, solid, paving, kerbstone, interlocking, and porous bricks. The cycle time and daily output will vary depending on the height and complexity of the specific mould installed on the platform.

Q: What is the required plant footprint?
A: You must account for the 8300 x 1860 mm machine dimensions, the JS750 mixer area, and a substantial curing yard for the 950 x 900 mm pallets. A fixed-plant setup requires more initial space planning than mobile alternatives.

Q: Can the automation level be increased later?
A: Yes, the system is designed to allow for future upgrades. You can begin with standard automatic stacking and later integrate more advanced batching or remote diagnostic features as your production volume and technical expertise expand.

Q: How do I ensure the voltage matches my site?
A: Voltage and frequency are not universal; you must confirm your local industrial standards before we begin production. We configure the 46 kW power system and PLC display language to match your specific regional requirements.

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