Integrated Line Timing — Every station from raw material feeding to stacking is cycle-matched to the QT12-15 press so your stated daily output reflects actual production, not a catalogue promise.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT12-15 |
| Product Type | Fully Automatic Hydraulic Block Making Machine |
| Overall Dimensions (L×W×H) | 9350×2520×2950 mm |
| Net Weight | 12 T |
| Rated Power | 45.7 kW |
| Voltage & Frequency | 380V (frequency configurable to target market standard) |
| Control System | PLC (Siemens referenced, confirm against final BOM) |
| Hydraulic Pressure | 21 MPa |
| Pallet Size | 1350×850×40 mm |
| Automation Level | Full automatic (raw material feeding through stacking) |
| Output Capacity | 2,800 pcs/h based on 400×200×200 mm hollow block, 12 pcs/mould |
| Output Capacity | 3,840 pcs/h based on 400×150×200 mm hollow block, 16 pcs/mould |
| Output Capacity | 14,000 pcs/h based on 240×115×53 mm solid brick, 62 pcs/mould |
| Daily Output | 22,400 pcs/day based on 400×200×200 mm hollow block, 8-hour shift |
| Daily Output | 30,720 pcs/day based on 400×150×200 mm hollow block, 8-hour shift |
| Daily Output | 112,000 pcs/day based on 240×115×53 mm solid brick, 8-hour shift |
| Color Options | According to buyer request |
| Standards | ISO 9001:2008, CE |
| Warranty | 1 year |
Application Suitability
| Application | Material or Output |
|---|---|
| High-capacity hollow block plants | Crushed stone, sand, cement, and fly ash aggregates for 400×200×200 mm and 400×150×200 mm formats |
| Solid brick production at scale | Fine aggregate and cement mixes for 240×115×53 mm standard bricks |
| Building material manufacturers expanding format range | Paver and kerbstone mixes where hydraulic pressure and vibration are matched to density requirements |
| On-site dedicated block supply for housing projects | Locally sourced aggregate blends validated for consistent block strength across an 8-hour shift |
Why "Pieces per Hour" Means Nothing Without the Block Format
Capacity only becomes real when tied to a specific block size, mould cavity count, and pallet cycle.
I have watched buyers sign contracts based on a single headline number — say, 14,000 pieces per hour — only to discover on commissioning day that the figure assumed a small solid brick format while their market actually buys 200 mm hollow blocks. The press itself may be capable, but if the mixer cannot deliver batches fast enough, or the pallet return loop adds seconds to every cycle, the entire automatic block machine production line stalls at a fraction of the quoted output [NEED_CITE: common causes of output shortfall in concrete block plants].
How Line Stations Must Keep Pace with the Press
The QT12-15 completes a pressing cycle in a matter of seconds, which means every upstream and downstream station must be ready before the press finishes. Raw material batching and mixing must deliver a fresh charge within the press cycle window; otherwise the mould sits empty and throughput drops. Pallet feeding must place a clean, cured pallet on the conveyor in sync with the demoulding stroke. When any single station lags, the bottleneck migrates from the press to the supporting equipment, and the automatic block machine production line never reaches the capacity calculation you were shown.
Where Cycle-Time Mismatches Surface First
In my experience planning lines around presses of this class, the first symptom is never the press itself — it is the pallet return conveyor running dry or the stacker waiting for a full layer to accumulate. A mixer sized too small forces the press into idle pauses between batches. A stacking station that cannot index fast enough leaves wet blocks sitting on the pallet conveyor, risking surface damage [NEED_CITE: impact of pallet handling speed on block surface quality]. These mismatches are invisible in a quotation that lists only the press, which is exactly why we specify every station as one matched system.
Reading the Specifications That Actually Matter
Hydraulic pressure at 21 MPa determines the compaction force applied to the mix inside the mould. Combined with vibration force — which must be confirmed for your target format — it governs the density and compressive strength of the finished block. If your local aggregate contains a high clay fraction, the pressure and vibration settings must be adjusted during commissioning; otherwise blocks may crack during curing or fail drop-tests on site.
The 1350×850×40 mm pallet size is another decision that ripples through the entire plant. Your curing racks must accept this pallet dimension, and your forklift must handle the loaded weight. Ordering pallets in a size that does not match your existing curing area forces a capital expenditure on new racks or, worse, manual restacking after demoulding.
Voltage and frequency must align with the local grid before the control cabinet is wired. A PLC configured for 380V/50Hz shipped to a 60Hz market will run motors at a different speed, altering cycle times and potentially tripping thermal overloads. Confirming the PLC display language before production avoids a situation where operators cannot read fault codes on the first day of commissioning.
The Cost of Specifying the Line in Isolation
When supporting equipment is sourced separately from the press, nobody owns the cycle-time match. The mixer vendor guarantees batch size but not delivery interval. The stacker vendor guarantees layers per minute but not pallet compatibility. The result is a collection of machines that each meet their own spec sheet yet fail as a system. Buyers then spend weeks chasing which vendor is responsible for the output gap, while the plant runs at partial capacity and orders slip [NEED_CITE: disputes arising from multi-vendor block line integration].
Why Sourcing the Whole Line from One Supplier Changes the Outcome
Block machinery is our single focus, so the QT12-15 press, its moulds, pallets, and every handling station are specified as one matched system rather than assembled from separate purchase orders. We set the configuration against your actual mix design and local aggregate, not a catalogue default, because a line tuned to the wrong material will never deliver its rated output.
Mould design covers the formats your market actually sells, including custom drawings when standard cavity layouts do not fit your product range. Automation level is selectable — you can begin with semi-automatic pallet handling and add automatic stacking and cubing later as your workforce and curing space grow.
Every line layout we issue states the block format assumed for each capacity figure, so you can verify the daily output against your product mix before the contract is signed. Installation support includes operator training on the PLC interface, hydraulic adjustments, and mould change procedures, ensuring the crew can run the automatic block machine production line independently after our technicians leave site.
Documentation & Verification
- Line layout drawing showing station positions and pallet flow path for the QT12-15 configuration
- Capacity calculation sheet stating block format, mould cavity count, and cycle time per format
- Pallet specification matched to your curing rack dimensions and forklift load rating
- Hydraulic and electrical schematic with PLC I/O list for on-site troubleshooting
- Factory test record run on your target block format before container loading
- Voltage, frequency, and PLC display language confirmation signed off before cabinet wiring
Installation, Commissioning & Support
- Foundation plan accounts for the 9350×2520 mm footprint and dynamic loads from vibration
- Dedicated 45.7 kW circuit with voltage and frequency verified against local grid before energizing
- Machine shipped in dismantled state; on-site reassembly aligns press frame to pallet conveyor datum
- First-run test uses your local aggregate mix to set hydraulic pressure and vibration parameters
- Operator training covers PLC fault screens, mould change sequence, and daily greasing points
- Wear parts list identifies hydraulic seals, vibration springs, and mould liner replacement intervals
What We Need to Size Your Line Accurately
Send us the block formats you plan to produce, including dimensions and target daily volume for each. Share your local aggregate type and any lab test data on particle size and clay content. Let us know the voltage and frequency at your site, the PLC language your operators read, and the dimensions of your existing curing area and forklift capacity so we can confirm pallet compatibility before the automatic block machine production line is finalized.
Frequently Asked Questions
Q: How do I verify the stated capacity against the block format I actually sell?
A: Every capacity figure we quote names the block dimensions, mould cavity count, and pallet size it assumes. Request the capacity calculation sheet for your specific format — for example, 2,800 pcs/h based on a 400×200×200 mm hollow block with 12 cavities — and compare it to your shift length and product mix.
Q: Which supporting equipment stations are included in the line?
A: The full line covers raw material batching, mixing, pallet feeding, the QT12-15 press, wet block stacking, and curing rack handling. Each station’s cycle time is matched to the press so no single point creates a bottleneck that reduces overall throughput.
Q: Is the pallet size compatible with my existing curing racks and forklift?
A: The standard pallet measures 1350×850×40 mm. Before production, we confirm this dimension against your curing rack spacing and forklift tine width. If a mismatch exists, we adjust the pallet specification or recommend rack modifications so blocks move from press to cure without manual restacking.
Q: What voltage, frequency, and PLC language will be configured?
A: We confirm voltage, frequency, and PLC display language during the quotation stage and record them on a signed confirmation sheet. The control cabinet is wired and labeled accordingly before the factory test, so no re-wiring or language reflash is needed when the automatic block machine production line arrives at your site.
Q: Can I see the line layout and capacity calculation before ordering?
A: Yes. The line layout drawing shows every station, conveyor length, and pallet flow direction. The accompanying capacity calculation lists each block format, its cycle time, and the resulting hourly and daily output, giving you a transparent basis for your investment decision.
