Line-Centered Sizing — the QT6-15 is positioned as the cycle reference for every upstream and downstream station, so pallet handling, mixing and stacking are matched to its 14–20 second range rather than specified in isolation.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT6-15 |
| Product Type | Automatic Vibration Press Concrete Block Making Machine |
| Rated Power | 31.25 kW |
| Voltage & Frequency | Configured to buyer’s local supply (basis not stated in source — confirm voltage, frequency, phase) |
| Control System | PLC intelligent control with man-machine interface, logic control, production program, malfunction diagnosis, remote control function |
| Hydraulic Pressure | 16–21 MPa |
| Main Vibration Form | Platform vibration |
| Mould Release | Oil cylinder locking mould box to vibration table for synchronous vibration |
| Pallet Size | 850 × 680 mm |
| Cycle Time | 15–20 s (general); format-specific below |
| Output — Hollow Block | 8,640 pcs/day (basis: 400×200×200 mm, 6 pcs/mould, 16–20 s cycle) |
| Output — Porous Block | 22,400 pcs/day (basis: 240×115×90 mm, 14 pcs/mould, 15–18 s cycle) |
| Output — Standard Block | 54,400 pcs/day (basis: 240×115×53 mm, 30 pcs/mould, 14–17 s cycle) |
| Overall Dimensions (L×W×H) | 7100 × 1500 × 3000 mm |
| Net Weight | 8500 kg |
| Applied Products | Hollow/solid blocks, pavers, interlocking blocks, curbstone, colored pavers |
| Raw Materials | Crushed stone, sand, cement, fly ash, gravel, slag, dust |
| Color Paver Option | Face-color material feeding device (optional) |
| Certification | CE declaration where applicable |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for building walls | Crushed stone, sand, cement, fly ash blends |
| Solid block manufacturing for load-bearing structures | Gravel, cement, slag aggregates |
| Paving block and colored paver runs | Fine sand, cement, pigment via optional face-color feeder |
| Interlocking brick and curbstone formats | Local aggregate with cement binder |
| On-site block production for housing projects | Site-available sand, stone dust, cement |
| Porous and permeable block for drainage | Open-graded aggregate with controlled cement content |
Why Cycle Time Must Dictate Every Station on the Automatic Block Machine Production Line
A press that waits for material or pallets is a press that never reaches its rated output.
Capacity figures on paper mean little when the mixer cannot replenish the hopper fast enough or the pallet return conveyor falls one cycle behind. On a line built around the QT6-15, the 14–20 second cycle window sets the tempo for raw material feeding, mixing batch size, pallet circulation speed, and stacking interval. If any station is undersized, the press idles and daily output drops well below the calculation. [NEED_CITE: synchronization of upstream and downstream stations in block production lines]
Matching Upstream Feeding and Mixing to the Press Tempo
The QT6-15 draws a fresh batch of mixed material every cycle, so the mixer discharge rate and the raw material feeder must deliver a consistent volume within that 14–20 second window. An undersized mixer forces the press to pause, breaking the rhythm of the automatic block machine production line and reducing shift output. Sizing the mixer drum and belt feeder against the mould cavity volume and cycle rate keeps material flowing without surge or starvation.
Pallet Circulation and Downstream Stacking Coordination
Each completed block leaves the press on an 850 × 680 mm pallet that must travel through the curing rack system before the pallet can loop back. If the pallet return conveyor or the stacking station cannot clear and reset within the press cycle, the next moulding stroke is delayed. Designing the pallet loop length, rack capacity and stacker sweep speed around the QT6-15 cycle range ensures the press never waits for an empty pallet.
Reading the Specs That Shape Line-Wide Throughput
Hydraulic pressure in the 16–21 MPa range, combined with platform vibration and oil-cylinder mould locking, determines how quickly concrete is compacted and released. Higher vibration force shortens the compaction phase, but only when paired with adequate hydraulic clamping to prevent mould bounce. The 31.25 kW rated power covers both vibration motors and hydraulic pump demand simultaneously, so upstream electrical supply must account for peak draw across the full automatic block machine production line. Pallet size directly influences curing area footprint — a buyer whose existing forklift or rack spacing is dimensioned for a different pallet will face rework costs before the first block is sold. [NEED_CITE: relationship between vibration force, hydraulic clamping and block density]
What Happens When Line Stations Are Sized Independently
I once saw a buyer receive a well-built press only to discover the pallet feeder cycled two seconds slower than the press stroke, leaving the machine idle for roughly one in every ten cycles across a full shift. The stacking station was rated for a lighter block format, so porous blocks jammed the lift. These mismatches do not show up in individual equipment quotations; they appear only when stations run together. Specifying every conveyor speed, rack interval and feeder volume against the press cycle prevents the kind of bottleneck that quietly erodes daily output. [NEED_CITE: consequences of unsynchronized line stations on shift output]
How This Line Is Configured Around Actual Site Conditions
Every automatic block machine production line we deliver starts from the buyer’s local aggregate and target block format, not a catalogue default. The mixer, feeder and pallet system are selected after reviewing the buyer’s mix design, so the QT6-15 receives material it can compact to the required density. Pallet material — bamboo, steel or composite — is chosen against the buyer’s curing method and forklift capacity, not assumed from a standard list. Voltage, frequency and PLC display language are confirmed in writing before production begins, avoiding commissioning delays on site. The line layout drawing shows each station’s cycle contribution, giving the buyer a transparent view of where throughput is set and where capacity margins exist. Documentation includes a factory test record run against the buyer’s own mix sample, so output and density figures reflect real conditions rather than ideal laboratory blends. [NEED_CITE: factory pre-delivery testing against buyer-supplied raw material]
Documentation & Verification
- Line layout drawing with capacity calculation per block format and cycle time
- Machine specification sheet paired with pallet and hydraulic schematics
- Voltage, frequency and PLC display language confirmation document
- Factory test record on buyer’s mix design and target block density
- Mould drawing and format list covering hollow, solid and paver options
- Operation and maintenance manual with wear parts and mould replacement schedule
Installation, Commissioning & Support
- Foundation plan sized to the 7100 × 1500 mm press footprint and vibration isolation
- Dedicated 31.25 kW circuit with confirmed voltage and phase before energizing
- Pallet return conveyor aligned to buyer’s existing curing rack spacing
- PLC language set and malfunction diagnosis verified on first production run
- Operator training covering mould change procedure and cycle parameter adjustment
- Wear parts list for hydraulic seals and vibration table bearings with reorder intervals
What to Share When Requesting a Line Proposal
Provide the block formats your market sells most, along with target daily volume for each. Share a sample or analysis of your local aggregate and current mix proportions so the feeding and mixing stations are matched to real material behavior. Confirm your site voltage, frequency and any existing pallet or curing rack dimensions so the automatic block machine production line is built to fit, not adapted after arrival.
Frequently Asked Questions
Q: How do I verify the QT6-15’s daily output against the specific block format my market sells?
A: Output varies by format — for example, 8,640 pieces per day applies only to 400×200×200 mm hollow blocks at 6 pieces per mould and a 16–20 second cycle. Request a capacity table that lists every format you plan to produce with its mould cavity count and cycle time so the figures reflect your actual product mix, not a single catalogue number.
Q: What upstream mixing and feeding capacity is needed so the press is never left waiting for material?
A: The mixer and feeder must deliver a full batch within the QT6-15’s 14–20 second cycle window. We calculate mixer drum volume and belt feeder rate against your mould cavity fill volume and target cycle speed, then confirm the match in the line layout document before production begins.
Q: How should pallet size and material be chosen to match my curing area and forklift?
A: The standard pallet is 850 × 680 mm, but material — bamboo, steel or composite — affects weight, lifespan and compatibility with your curing racks and forklift tines. Share your rack spacing and forklift capacity so the pallet specification is finalized against your existing handling infrastructure.
Q: Which downstream stacking and curing rack handling stations keep pace with the press cycle time?
A: The stacker and rack handler must clear a loaded pallet and return an empty one within the press cycle range. We size the stacking lift speed, conveyor length and rack shuttle interval against the fastest cycle you plan to run, ensuring no downstream station becomes the bottleneck.
Q: What voltage, frequency and PLC language must be confirmed before the line ships?
A: The QT6-15’s electrical system is configured to your site supply, so voltage, phase and frequency must be stated in writing before assembly. PLC display language is also confirmed at that stage to prevent commissioning delays caused by unreadable diagnostics or menu text on arrival.
