Matched Line Engineering — every station from mixer to curing rack is timed to the QT4-15 press cycle so the block making machine production line never starves or piles output by hand.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-15 |
| Product Type | Automatic Hydraulic Block Making Machine |
| Overall Dimensions (L×W×H) | 7100×1600×2610 mm |
| Host Machine Dimensions (L×W×H) | 2800×1800×2550 mm |
| Rated Pressure | 16 MPa |
| Main Vibration Form | Platform Vibration |
| Vibration Frequency | 4600 r/min |
| Vibration Force | 40 kN |
| Pallet Size | 950×550×20/25 mm |
| Molding Cycle | 15–25 s |
| Overall Power | 27.5 kW |
| Host Machine Power | 19.2 kW |
| General Water Consumption | 4 T/day |
| Total Mass | 5 T |
| Control System | Siemens PLC with independently developed control program (customizable) |
| Motor Brand | Siemens or ABB (buyer selectable) |
| Hydraulic System | Double proportional hydraulic valve, Calyca or Youken brand |
| Output Capacity — Hollow Brick (390×190×190 mm) | 4 pcs/mould, 720–960 pcs/h (basis: 15–20 s cycle, 4 cavities per mould) |
| Output Capacity — Porous Brick (240×115×90 mm) | 14 pcs/mould, 2520–3360 pcs/h (basis: 15–20 s cycle, 14 cavities per mould) |
| Output Capacity — Standard Brick (240×115×53 mm) | 28 pcs/mould, 5930–6720 pcs/h (basis: 15–17 s cycle, 28 cavities per mould) |
| Automation Level | Automatic (hydraulic press + vibration, PLC controlled) |
| Warranty | 1 year (excluding spare parts) |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for load-bearing and partition walls | Crushed stone, sand, cement, and fly ash blends |
| Porous brick manufacturing for thermal insulation builds | Lightweight aggregate mixed with Portland cement |
| Standard solid brick for masonry and paving | Dense sand and gravel with cement binder |
| On-site production for housing development projects | Locally sourced river sand and stone dust |
| Paving brick and road brick for municipal works | High-strength mix with fine aggregate grading |
Why the Block Making Machine Production Line Matters More Than the Press Alone
A press rated at 960 hollow blocks per hour means nothing if the pallet feeder jams every third cycle and stacking backs up the curing area.
I have seen buyers focus entirely on the host machine vibration force and hydraulic pressure, only to find that the mixer output cannot keep pace with a 15-second cycle. The hopper runs dry, the operator overrides the PLC to wait, and the quoted output drops to a fraction of the brochure figure [NEED_CITE: typical output shortfall when line stations are mismatched]. A turnkey block plant must be engineered from raw material infeed through to cured and stacked product, with every conveyor speed, mixer batch time, and pallet return interval calculated against the press cycle.
How Station Timing Eliminates the Bottleneck
The QT4-15 operates on a 15–25 second molding cycle depending on block format and mix consistency. For a block making machine production line to sustain its rated output, the raw material feed must deliver a fresh batch to the hopper within that window, the pallet feeder must present a clean pallet before the press head lifts, and the wet-side conveyor must carry loaded pallets away before the next press stroke. Each station is specified so its cycle time falls inside the press envelope rather than exceeding it.
Matching the Mixer to the Press Appetite
With an overall power draw of 27.5 kW and a general water consumption of 4 tonnes per day, the line demands a mixer that can discharge a homogeneous batch every 15–25 seconds. A pan mixer with a discharge gate sized for the QT4-15 hopper inlet prevents bridging and ensures the moisture content stays uniform across every cycle [NEED_CITE: mixer-to-press feed rate alignment in stationary block lines].
Reading the Specs That Actually Shape Your Output
The 40 kN vibration force paired with 16 MPa hydraulic pressure determines how densely the concrete compacts inside the mould cavity. Higher vibration without matching pressure leaves voids; higher pressure without sufficient vibration causes the mix to stick to the mould walls. The 4600 r/min platform vibration frequency is tuned for the 950×550 mm pallet area, distributing energy evenly so blocks at the pallet edges receive the same compaction as those in the centre. The Siemens PLC coordinates press stroke, vibration duration, and hydraulic hold in a single program loop, which means cycle time stays consistent even when the operator switches between hollow, porous, and standard brick moulds.
The Hidden Cost of Ignoring Pallet and Curing Layout
When the pallet size is chosen without checking the curing rack dimensions and the forklift already on site, pallets either do not fit the racks or require a second forklift purchase. Wet blocks stacked by hand because the automatic stacker was never quoted add labour cost and introduce handling damage [NEED_CITE: manual stacking damage rates in block plants without matched handling]. The 950×550 mm pallet on this line should be evaluated against the buyer’s existing curing infrastructure before the order is confirmed.
What You Actually Get Beyond the Press
Block machinery is a single focus here, so the machine, mould, pallet, and handling equipment are specified as one matched system rather than assembled from separate suppliers. The configuration is set against the buyer’s actual mix design and local aggregate, not a catalogue default. Mould design covers the formats the buyer’s market sells, and the automation level is selectable so a plant can start with semi-automatic stacking and add automatic cubing later.
Documentation & Verification
- Line layout drawing with capacity calculation stated per block format for each station
- Hydraulic and electrical schematic covering the full production line, not the press alone
- Factory test record run on the buyer’s confirmed pallet size and mould format
- Voltage, frequency, and PLC display language confirmation sheet signed before production
- Mould drawing and format list with cycle time per cavity count
Installation, Commissioning & Support
- Foundation plan accounts for the 5 T total mass and 7100 mm line length
- Dedicated circuit sized for the 27.5 kW overall power draw with voltage confirmed per site
- Host machine arrives assembled; pallet feeder and stacker bolt on during commissioning
- PLC program tested against the buyer’s mould set before the line is cleared for production
- Operator training covers mould change procedure and Siemens PLC fault screen navigation
- Wear parts list includes hydraulic valve seals and vibration motor bearings with reorder codes
What to Share When Requesting a Line Proposal
Provide the target block formats you plan to produce and the daily volume each format requires. Include your local raw material source and any existing curing racks, forklifts, or power supply specifications so the block making machine production line can be configured around what you already have on site.
Frequently Asked Questions
Q: How is line capacity calculated when multiple block formats share the same press and pallet system?
A: Each format is calculated separately based on its cavity count and cycle time. For example, hollow brick at 4 cavities and a 15–20 second cycle yields 720–960 pieces per hour, while standard brick at 28 cavities and a 15–17 second cycle yields 5930–6720 per hour. The line capacity is the weighted average based on your production schedule.
Q: Do pallet feeding, stacking, and curing rack handling come included, or are they quoted separately?
A: They are specified as part of the matched line. Pallet size, stacker type, and curing rack handling are confirmed during the layout stage so that every station aligns with the QT4-15 cycle time and your existing site equipment.
Q: How do you ensure the mixer output and raw material feed rate match the press cycle time?
A: The mixer batch size and discharge rate are calculated against the QT4-15 molding cycle of 15–25 seconds. If your raw material moisture content varies, we adjust the mixer timing and PLC feed parameters to prevent hopper starvation.
Q: Can the automation level be upgraded later, for example adding automatic cubing after starting semi-automatic?
A: Yes. The Siemens PLC program and line layout are designed to accept additional stations. The conveyor length and electrical capacity are specified with upgrade headroom so that automatic cubing can be added without replacing the existing equipment.
