Line-Matched System Sizing — The QT6-15 is configured as a complete production line where every upstream and downstream station is capacity-matched so the press cycle never stalls waiting for material or pallets.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT6-15 |
| Product Type | Automatic Interlocking Brick Block Making Machine |
| Molding Method | Vibration and hydraulic pressing |
| Rated Hydraulic Pressure | 21 MPa |
| Molding Cycle | 15 s – 20 s (basis to be confirmed per block format) |
| Pallet Size | 900 × 700 mm |
| Main Machine Weight | 6,000 kg |
| Output — Hollow Block 400 × 200 × 200 mm | 1,440 pcs/h; 11,520 pcs per 8-hour shift |
| Output — Paving Brick 200 × 100 × 60 mm | 5,040 pcs/h; 40,320 pcs per 8-hour shift |
| Output — Solid Brick 240 × 115 × 53 mm | 7,680 pcs/h; 61,440 pcs per 8-hour shift |
| Control System | PLC (brand and language options to be confirmed) |
| Voltage & Frequency | Customizable to local standard (exact V and Hz to be confirmed) |
| Raw Materials | Cement, sand, fly ash, stone powder, slag |
| Automation Level | Selectable: simple line or full line configuration |
| Assembly State for Shipment | Top cylinder removed for container loading; reassembly on site |
| Warranty | 1 year (excluding wearing parts) |
| Certification | CE declaration (availability to be verified) |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for building walls | Cement, sand, fly ash, stone powder, slag |
| Interlocking brick for paving and landscaping | Cement, crushed stone, sand |
| Paving brick for sidewalks and driveways | Cement, aggregate, stone powder |
| Solid brick for load-bearing masonry | Cement, sand, slag |
| Curbstone and kerb production | Cement, coarse aggregate |
What "Pieces per Hour" Hides About Your Real Daily Output
Cycle rate only matters if the rest of the line can keep up with it.
When a quotation lists 1,440 hollow blocks per hour without stating that this figure assumes a 400 × 200 × 200 mm block on a specific pallet, buyers plan their output around a number the machine cannot sustain in mixed-format production. The press sits idle while the mixer catches up, or pallets pile up because the stacker cannot remove them fast enough. I have watched entire shifts lost because the automatic block making machine production line was quoted as a press alone, and the supporting stations were an afterthought. [NEED_CITE: block line throughput depends on slowest station in the chain]
Upstream Stations That Must Match the Press Cycle
The QT6-15 completes a molding cycle in 15 to 20 seconds, which means the mixer must deliver a fresh batch to the hopper within that same window. A simple line pairs the press with a mixer, conveyor belt, and stacker. A full automatic block making machine production line adds a cement silo, screw conveyor, cement scale, batching machine, and pallet loader — each station sized so the press is never starved of material or pallets. If the batching machine doses at a rate slower than the press consumes, the cycle stretches and the quoted output drops.
Downstream Flow and Curing Rack Handling
Once the block leaves the press on its 900 × 700 mm pallet, it must travel to the curing area without bottlenecking the next cycle. The block and pallet separator in the full line configuration removes finished blocks from pallets and returns pallets to the loader, closing the loop. If the curing rack layout or forklift capacity at the buyer’s plant was not factored into the pallet size decision, pallets accumulate on the floor and manual handling replaces the automation the buyer paid for. [NEED_CITE: pallet return loop design in automatic block plants]
Reading the Specs Against Your Actual Block Format
The rated hydraulic pressure of 21 MPa, combined with the vibration system, determines the green strength of the block as it leaves the mold — and green strength determines whether a block survives the trip to the curing rack without edge damage. The 6,000 kg main machine weight provides the mass needed to absorb vibration energy into the mold cavity rather than dissipating it into the foundation. For interlocking and paving formats where surface finish matters, the vibration force and hydraulic pressure must be tuned to the buyer’s specific mix design and local aggregate gradation, not left at a factory default. The molding cycle of 15 to 20 seconds varies by block format, and the output table in the specifications reflects this: hollow blocks yield 1,440 pieces per hour while solid bricks yield 7,680 pieces per hour on the same press, because pieces per pallet differ by format. Choosing pallet size without checking the buyer’s existing curing rack spacing and forklift fork dimensions leads to costly retrofits after installation.
The Hidden Cost of a Line That Stops Waiting
When upstream and downstream stations are not included in the quotation, the buyer discovers after commissioning that blocks are stacked by hand, pallets are moved with wheelbarrows, and the real throughput is a fraction of the cycle-rate figure. I have seen plants where the press could run another shift per day, but the curing area was too small for the pallet size chosen, forcing the line to shut down early. The cost is not the missing equipment — it is the lost production weeks while the buyer sources and installs the stations that should have been in the original line layout. [NEED_CITE: common causes of block plant commissioning delays]
Why This Line Is Specified as a Matched System
Block machinery is the single focus of the supplier, which means the press, mold, pallet, and handling equipment are specified as one system rather than assembled from separate vendors. The line configuration is set against the buyer’s actual mix design, local aggregate, and target block format — not a catalogue default. Pallet size is confirmed against the buyer’s curing area and forklift before production begins. Voltage, frequency, and PLC display language are locked in before the machine leaves the factory, eliminating the commissioning stall I experienced on a European install where the panel shipped in Chinese. Mould design covers the formats the buyer’s market actually sells, with custom drawings available.
Documentation & Verification
- Line layout and capacity calculation stating the block format assumed for each output figure
- Machine specification sheet with pallet size, pressure rating, and cycle time by format
- Hydraulic and electrical schematic for on-site troubleshooting and spare parts ordering
- Voltage, frequency, and PLC display language confirmation signed before production
- Factory test record on the buyer’s target block format before dispatch
- Wear parts and mould list with part numbers for first replacement order
Installation, Commissioning & Support
- Foundation plan sized to the 6,000 kg main machine weight and vibration load
- Power supply matched to confirmed voltage and frequency before the QT6-15 ships
- Top cylinder reassembly on site after container unloading, with alignment check
- PLC parameter setting and molding cycle tuning to the buyer’s mix design on day one
- Operator training covering mold change procedure and daily maintenance schedule
- Wear parts list provided at handover so spares are on site before first replacement is due
What to Include in Your Inquiry
Send your target block formats with dimensions, the daily output you need per format, and the raw materials available locally with sieve analysis if possible. Include your workshop dimensions and curing area layout so pallet size and line footprint can be matched. State your site voltage, frequency, and preferred PLC display language to avoid rework after the automatic block making machine production line arrives.
Frequently Asked Questions
Q: How is line capacity verified when different block formats run on the same press?
A: Each output figure is tied to a specific block format and pallet layout. The capacity calculation in the line layout document states the format, pieces per pallet, and cycle time assumed, so you can plan daily production honestly rather than relying on a single headline number that only applies to one block type.
Q: What upstream and downstream stations must be included so the QT6-15 press cycle time is not bottlenecked?
A: At minimum, a mixer and conveyor must deliver material within the 15–20 second cycle. The full line adds cement silo, batching machine, pallet loader, and block-pallet separator. Each station is sized so the press never waits for material or pallets, maintaining the cycle rate across the entire shift.
Q: How do I confirm pallet size and material against my existing curing racks and forklifts?
A: The 900 × 700 mm pallet dimension is checked against your curing rack spacing, rack height, and forklift fork width before production. If your existing infrastructure uses a different size, the pallet specification is adjusted so the line integrates with your plant without rack or forklift modifications.
Q: What voltage, frequency, and PLC language configuration is confirmed before shipment?
A: Your site voltage, frequency, and preferred PLC display language are confirmed in writing before the QT6-15 enters production. This prevents the commissioning delay that occurs when a control panel arrives in a language the local operators cannot read or on a voltage that does not match the site supply.
Q: How are raw material feed configurations matched to my locally available aggregates and mix design?
A: The batching machine and mixer are configured for the materials you can source locally — cement, sand, fly ash, stone powder, or slag — and the vibration and pressure settings are adjusted to your mix. This avoids the situation where the machine is set for an aggregate that is unavailable at your site.
