QT12-15 Hydraulic Automatic Block Machine for Hollow Block and Solid Brick – Full Range

Single-focus line integration — every QT12-15 unit ships with pallet, mould and handling matched as one system, not assembled from separate suppliers.

Technical Specifications

Application Suitability

Why the Capacity Number on the Brochure Is Not Your Daily Output

Real daily throughput depends entirely on which block format and mould cavity count the machine actually runs.

When I first started on the assembly floor here in Shandong, I watched buyers take a single headline figure and sign the purchase order. Months later they would call saying the full automatic concrete block making machine for sale they received was underperforming. The truth was usually simpler: the brochure number assumed a 62-cavity solid brick mould, while their market demanded 12-cavity hollow blocks. The QT12-15 automatic block machine manufacturer specification sheet above lists each capacity with its exact block dimension and cavity count so there is no guesswork. [NEED_CITE: capacity calculation standards for concrete block machinery]

Where the QT12-15 Sits in the Automatic Range

This model occupies the top tier of our full automatic block machine range. Buyers stepping up from mid-output lines will notice the larger 1350×850 mm pallet and the 21 MPa hydraulic circuit. The footprint demands a dedicated bay with curing rack space proportionate to that pallet size.

Matching the Press to the Formats Your Market Sells

A buyer in West Africa once asked us to quote this automatic block machine manufacturer platform for only 400×200×200 mm hollow blocks. We pointed out their neighbouring market was shifting to 400×150×200 mm, and including the second mould would let them run whichever format had orders that week. The mould change system on the QT12-15 is designed for this kind of format switching within a single shift. [NEED_CITE: block format demand shifts in regional construction markets]

Reading the Hydraulic and Vibration Numbers Together

Hydraulic pressure at 21 MPa pushes the mix into the mould corners, while vibration force settles the aggregate particles into a dense matrix. If vibration is too low for a stiff mix, the block edges crumble on demoulding. If vibration is too high for a wet mix, the block slumps before curing begins. The QT12-15 vibration frequency is set against the buyer’s actual aggregate and cement ratio, not a catalogue default. The 45.7 kW total power rating tells the buyer whether their site transformer can support continuous two-shift operation before the machine leaves our workshop. Pallet size 1350×850 mm must align with the curing area forklift the buyer already operates; specifying a different pallet dimension later means replacing an entire rack fleet.

The Cost of Skipping the Voltage Conversation

We have seen machines arrive at port and sit for weeks because the buyer’s grid runs at 60 Hz while the motor was wound for 50 Hz. The QT12-15 voltage and frequency are configurable, but only if confirmed before production starts. PLC display language follows the same logic — an operator who cannot read the fault codes will call the technician for every minor alarm, turning a simple sensor reset into a lost morning of output. [NEED_CITE: voltage and frequency standards by export market]

Why Buyers Source This Platform Here

Block machinery is our single focus, which means the press, mould, pallet and handling are specified as one matched system. The configuration is set against your actual mix design and local aggregate, not a catalogue default. Mould design covers the formats your market sells, including custom drawings when a regional standard demands non-standard dimensions. The automation level is selectable, so a buyer can begin with the QT12-15 in a semi-automatic pallet handling arrangement and add automatic stacking and cubing as volume grows. Installation support includes operator training on your site, and wear parts availability is confirmed before the first replacement cycle is due.

Documentation & Verification

• Line layout and capacity calculation stating each block format and mould cavity count assumed
• Machine specification sheet with voltage, frequency and PLC display language locked before production
• Mould drawing and format list showing exact block dimensions included in the quotation
• Factory test record demonstrating actual cycle time per format before dispatch
• Hydraulic and electrical schematic for local maintenance team reference
• Packing photographs and customs documentation support for smooth port clearance

Installation, Commissioning & Support

• Foundation slab sized to the 9350×2520 mm footprint with vibration isolation pads under the press section
• Dedicated electrical circuit matching the confirmed voltage and the 45.7 kW rated power draw
• Machine dismantled into container-load sections with reassembly supervised on site
• PLC parameters tuned to your mix design during first-week commissioning runs
• Operator training covering mould change, fault code reading and daily greasing points
• Wear parts and mould list supplied so first replacements are ordered before stock runs out

What to Send with Your Inquiry

Tell us the block formats your market sells today and the ones you expect to add within two years. Share your local aggregate source, cement type and the curing area dimensions you have available. Confirm your site voltage, frequency and the language your operators read on a screen, so the QT12-15 arrives ready to run instead of waiting for an electrician and a translator.

Frequently Asked Questions

Q: How is each capacity figure calculated, and which block format does it assume?
A: Every output number in the table above is tied to a specific block dimension and mould cavity count. The 2,800 pcs/h figure, for example, assumes a 400×200×200 mm hollow block with 12 cavities per mould. Daily output figures further assume an eight-hour shift. We provide a written capacity calculation with each proposal so the buyer sees the exact basis.

Q: Where does the QT12-15 sit in the full automatic range?
A: It occupies the top output tier for buyers who need continuous high-volume hollow block and solid brick supply. First-time buyers often start one tier lower to match initial market demand, then step up as offtake contracts grow. Our range covers every tier so the investment matches the buyer’s current stage.

Q: How do I confirm voltage, frequency and PLC language before production?
A: Send us your site electrical specification and the language your operators read. We lock these values into the purchase contract, wind the motors to your frequency, and configure the PLC display before assembly begins. This prevents the machine sitting idle at port waiting for a transformer or a software reload.

Q: Can I start semi-automatic and add full stacking later?
A: Yes. The QT12-15 platform supports a semi-automatic pallet handling arrangement at the start, with automatic stacking and cubing modules added once volume justifies the investment. The mechanical and electrical interfaces are present from day one, so the upgrade is a module install rather than a press rebuild.