QT5-15 Hydraulic Block Making Machine for Hollow Blocks – Full Range

Mid-Tier Range Anchor — The QT5-15 anchors the Shiyue stationary block machine range, giving buyers a clear capacity step-up point between semi-automatic starters and high-output automatic lines.

Technical Specifications

Application Suitability

Why "Pieces per Hour" Means Nothing Without a Block Size Attached

The QT5-15 automatic block making machine for sale delivers different throughputs depending on the format you run — quoting a single number hides what your shop floor will actually produce. Capacity is honest only when tied to a specific block dimension and cycle time.

I once watched a buyer in West Africa take delivery of a block machine whose brochure promised impressive hourly figures. The number was calculated using river sand, but the only aggregate available on site was stone dust. Daily output fell to roughly half the expected volume. The machine was not faulty — the capacity quote simply did not match the buyer’s reality [NEED_CITE: aggregate substitution effects on block machine cycle time]. That is why every output figure listed above names the exact block size, mould cavity count, and cycle window it assumes.

Where the QT5-15 Sits in the Full Range

The Shiyue range spans mobile egg-laying machines at the entry level, semi-automatic stationary presses for smaller plants, and high-capacity fully automatic lines. The QT5-15 block machine manufacturer positions this model as the first truly automatic tier — PLC-controlled with hydraulic demolding — before buyers scale into larger-format presses. If your daily target sits between a starter workshop volume and a high-throughput plant, this is the range bracket to examine.

Matching the Press to Your Plant Footprint

At 7400 × 1950 × 2800 mm overall, the QT5-15 requires a dedicated bay with headroom for hydraulic clearance and maintenance access. Buyers planning a complete block line need to account for raw material feeding, pallet circulation, and curing rack space beyond the press itself [NEED_CITE: stationary block plant layout and auxiliary equipment space requirements]. The 1100 × 550 mm pallet size should be checked against your existing curing area dimensions and forklift capacity before the order is placed, since changing pallet size later means replacing every pallet in circulation.

Pressure, Vibration, and What They Mean for Block Density

The 21 MPa rated hydraulic pressure and 2800–4500 r/min platform vibration frequency work together to compact the mix into a dense, consistent block. Higher vibration frequency helps finer aggregates like stone dust settle tightly, while hydraulic pressure locks the shape before demolding. If your local material leans toward coarse gravel, the lower end of the frequency range may be more effective; fine fly ash blends typically respond better at the upper end. The 15–25 second moulding cycle window reflects the fact that different formats — a tall hollow block versus a flat paver — need different compaction times. The PLC control adjusts cycle parameters per mould, but the settings must be validated against your actual mix design during commissioning, not left at factory defaults.

The Cost of Configuring a Machine to the Wrong Mix

When a block machine arrives configured for a mix design the buyer cannot source locally, the choices are grim: import expensive aggregates or reconfigure the machine at the destination. Either path delays production. Voltage mismatches cause similar problems — a press wired for 380 V / 50 Hz running on a 440 V / 60 Hz supply will burn out motors within weeks [NEED_CITE: industrial motor failure from voltage and frequency mismatch]. These are not manufacturing defects; they are specification gaps that a thorough pre-order conversation would have prevented.

Why Buyers Place the QT5-15 on Their Shortlist

Shiyue focuses exclusively on block making machinery, so the press, mould, pallet, and handling equipment are specified as one matched system rather than assembled from unrelated suppliers. The QT5-15 is configured against the buyer’s actual mix design and target block format, not pulled from a catalogue default. Mould design covers the formats the buyer’s market actually sells, including custom drawings when standard options do not fit. Automation level is selectable, so a buyer can start at this tier and add stacking or cubing later. Installation support includes on-site commissioning and operator training, and wear parts lists are provided before the machine ships.

Documentation & Verification

• Line layout and capacity calculation stating the block format assumed for each output figure
• Machine specification sheet with hydraulic and electrical schematics
• Voltage, frequency, and PLC display language confirmation signed before production
• Mould drawing and format list matched to pallet specification
• Factory test record and packing photographs provided before dispatch
• CE declaration documentation where applicable to destination market

Installation, Commissioning & Support

• Foundation pad sized for 7400 × 1950 mm footprint with vibration isolation provisions
• Dedicated power circuit for 26.5 kW rated draw, voltage and frequency confirmed pre-build
• Hydraulic system filled, bled, and pressure-tested to 21 MPa during on-site commissioning
• PLC display language set and operator training conducted in agreed language
• Mould change procedure demonstrated and cycle times validated with buyer’s actual mix
• Wear parts list and first replacement schedule provided at handover

What to Prepare Before Requesting a Quote

Share your target block formats, desired daily output, and the specific raw materials available at your site — including aggregate type, gradation, and source. Confirm your facility voltage, frequency, and preferred PLC display language. If you already have pallets, curing racks, or forklifts on site, send their dimensions so the line can be configured around them.

Frequently Asked Questions

Q: How is the QT5-15 positioned against semi-automatic and higher-tier models?
A: It is the entry point into Shiyue’s fully automatic PLC-controlled tier. Below it, semi-automatic models require manual pallet handling and have lower output. Above it, larger presses offer bigger pallet sizes and higher cycle rates. The QT5-15 suits buyers who have outgrown manual operation but are not yet ready for high-capacity lines.

Q: What plant footprint should I plan for at this tier?
A: The press itself occupies roughly 7400 × 1950 mm, but you must add space for material feeding, pallet circulation, curing racks, and product stacking. A complete line at this tier typically requires a covered production bay with sufficient headroom and a separate curing area matched to the 1100 × 550 mm pallet size.

Q: Can I upgrade the automation level after installation?
A: Yes. The QT5-15 platform allows adding automatic pallet feeding, stacking, or cubing modules later. Buyers often start with a basic automatic configuration and add handling equipment as production volume grows, spreading capital expenditure across phases.

Q: What electrical and control details are confirmed before production starts?
A: Voltage, frequency, and PLC display language are agreed in writing before the machine enters production. This prevents commissioning delays caused by mismatched power supply or operators unable to read the control interface at the destination site.

Q: How do I compare output tiers to choose the right machine?
A: Look at capacity per block format, not a single generic number. Match the mould cavity count and cycle time to the specific block your market buys most. A smaller machine running the right format often outproduces a larger press cycling a format you rarely sell.