Description
Integrated Automation Line — The QT5-15 ships as a matched system with PLC-controlled hydraulic press, pallet feeder, brick conveyor, and sweeper specified together, not assembled from separate suppliers.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT5-15 |
| Product Type | Automatic Hydraulic Block Making Machine |
| Overall Dimensions (L×W×H) | 7100×1600×2610 mm |
| Molding Cycle | 15 s |
| Vibration Frequency | 0–60 Hz |
| Vibration Force (Exciting Power) | 40 kN |
| Rated Power | 33.5 kW |
| Mixer Model | JS500 |
| Pallet Size | 1100×550 mm |
| Total Weight | 5 T |
| Control System | PLC control system |
| Hydraulic System | High-pressure hydraulic station |
| Included Line Equipment | Pallet feeder, brick conveyor, block sweeper |
| Applied Products | Paver, solid block, hollow block, curbstone |
| Raw Materials | Crushed stones, sand, cement, dust, fly ash |
| Automation Level | Fully automatic |
| Capacity — 400×200×200 mm hollow block | 5 pcs/mould, 450 pcs/hr, 3600 pcs/8hr |
| Capacity — 400×150×200 mm hollow block | 6 pcs/mould, 540 pcs/hr, 4320 pcs/8hr |
| Capacity — 400×100×200 mm solid brick | 8 pcs/mould, 720 pcs/hr, 5760 pcs/8hr |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for commercial walls | Crushed stone, sand, cement, fly ash blends |
| Solid brick manufacturing for load-bearing structures | Dense aggregate and cement mixes |
| Paver and curbstone production for municipal projects | Fine aggregate with high cement content |
| On-site block production for housing developments | Locally sourced river sand and stone dust |
| Multi-format plants expanding an existing product range | Quick mould change across hollow, solid, and paver formats |
What "Fully Automatic" Actually Includes on the QT5-15
The automatic PLC controlled QT5-15 block making machine includes the pallet feeder, brick conveyor, and block sweeper in the base quotation — stations that other suppliers leave off the line sheet.
I have watched plant owners arrive at commissioning expecting a fully automatic line, only to find pallets being fed by hand and green blocks stacked manually on the curing racks. The gap between "automatic press" and "automatic line" is where labour costs quietly double. With this machine, the pallet feeder indexes the next board while the press completes its cycle, the conveyor carries the loaded pallet to the discharge end, and the sweeper cleans the pallet face before it returns. The PLC governs the entire sequence, which means the press never sits idle waiting for upstream or downstream stations to catch up. [NEED_CITE: typical block plant labour allocation for manual versus automatic pallet handling]
How the PLC Coordinates the Full Molding Sequence
The PLC control system on this machine manages mold closing, hydraulic pressure application, vibration timing, pallet indexing, and block discharge as a single continuous loop. Every parameter — from vibration frequency ramp to hydraulic hold time — is stored per mould profile so the operator selects a format and the machine recalls the correct recipe. This removes the variability that comes from different operators adjusting timers on the shop floor. When a plant runs two or three block formats in a single shift, that batch-to-batch consistency is what keeps compressive strength readings within tolerance across the entire production run.
Where Cycle Time and Line Speed Must Align
The automatic PLC controlled QT5-15 block making machine runs a 15-second molding cycle, but the press is only one station in the line. The pallet feeder must deliver a clean board within that same window, and the conveyor must clear the loaded pallet before the next one exits. If the mixer cannot deliver a consistent batch to the hopper in time, the press waits and the quoted cycle time becomes theoretical. The JS500 mixer included in this line is sized to keep up with the 15-second cycle at full production rate, which is the kind of station-to-station matching that determines real daily output. [NEED_CITE: station synchronization requirements in automatic block production lines]
What the Specs Mean for Block Quality
Hydraulic pressure and vibration force work together to determine finished block density, and neither alone is sufficient. The 40 kN exciting power at up to 60 Hz packs the aggregate tightly, while the high-pressure hydraulic station compresses the mix from above during the vibration window. If the vibration frequency is set too high for a coarse local aggregate, the larger stones fracture rather than settle, producing a weaker block. During a commissioning in West Africa with local river sand that was far finer than our factory test material, I spent several days re-tuning vibration frequency and hydraulic timing until compressive strength met the buyer’s standard. That is why the QT5-15 control parameters are adjustable rather than factory-locked, and why locking down the buyer’s actual aggregate before production matters.
The pallet size of 1100×550 mm sets the footprint of every block that leaves the machine, and it must match the curing rack dimensions and the forklift tine spacing already on site. A pallet chosen without regard to existing curing infrastructure forces the buyer to replace the entire rack system or handle pallets that do not seat properly.
The Cost of Leaving Automation Stations Out of the Quote
When pallet feeding, conveying, and sweeping are excluded from a quotation to lower the headline number, the buyer absorbs those functions with manual labour. On a line producing several thousand blocks per shift, that means two or three additional workers handling hot, heavy, wet pallets in a repetitive cycle. Fatigue drives pallet drops, cracked green blocks, and inconsistent curing rack stacking — all of which show up as breakage and customer complaints downstream. The QT5-15 includes these stations so that "fully automatic" describes the actual line behaviour, not just the press. [NEED_CITE: common causes of green block breakage before curing]
Why Buyers Choose This Configuration
Block machinery is our single focus, so the machine, moulds, pallets, and handling equipment are specified as one matched system rather than assembled from separate vendors. The QT5-15 automation level is configurable — a buyer can commission the line with the included pallet feeder and conveyor now, then add automatic stacking and cubing later as volume grows. Configuration is set against the buyer’s actual mix design, local aggregate, and target block format rather than pulled from a catalogue default. Mould design and supply covers the specific formats the buyer’s market sells, including custom drawings for non-standard formats. Installation and commissioning support includes on-site operator training so the crew understands PLC parameter adjustments from day one.
Documentation & Verification
- Line layout and capacity calculation stating the exact block format assumed for each output figure
- Machine specification sheet with hydraulic and electrical schematic for local maintenance reference
- Voltage, frequency, and PLC display language confirmation document signed before production
- Factory test record run on the buyer’s specified block format and mould
- Operation and maintenance manual with wear parts list and mould format index
- Packing photographs and customs documentation support for shipment
Installation, Commissioning & Support
- Foundation must accommodate 7100 mm machine length with clearance for pallet feeder and conveyor extension
- Dedicated electrical circuit rated for the 33.5 kW total draw, with voltage and frequency confirmed before wiring
- Machine arrives dismantled for container loading; reassembly and alignment completed on-site during commissioning
- First production run includes vibration frequency and hydraulic timing adjustment to match the buyer’s actual aggregate
- Operator training covers PLC parameter recall per mould format and mould change procedure
- Wear parts list and hydraulic seal kit supplied at delivery for the first replacement cycle
Before You Request a Quote
To configure the automatic PLC controlled QT5-15 block making machine correctly, we need to know which block formats you intend to produce and the daily volume target for each. Share your local aggregate type and source, the voltage and frequency standard at your site, and the language you need for the PLC display. If you have existing curing racks and forklifts on site, send the dimensions so we can confirm pallet compatibility before the machine is built.
Frequently Asked Questions
Q: How is daily output verified, and which block format does each capacity figure assume?
A: Every capacity figure is stated against a specific block format and molding cycle. The QT5-15 produces 450 pieces per hour based on a 400×200×200 mm hollow block at a 15-second cycle, or 540 pieces per hour based on a 400×150×200 mm hollow block on the same cycle. The capacity calculation document provided with your quotation names the exact format, mould cavity count, and cycle time assumed for each figure so there is no ambiguity at commissioning.
Q: What automation stations are included, and what is left for manual handling?
A: The base line includes the PLC-controlled press, pallet feeder, brick conveyor, and block sweeper. Pallet feed and block discharge are automatic. Stacking onto curing racks is not included in this configuration and is handled by the operator or a separate stacker unit. This is stated clearly in the line layout so the buyer knows exactly where manual labour is required before the order is placed.
Q: Can the PLC display language and control parameters be set to local electrical standards?
A: Yes. Voltage, frequency, and PLC display language are confirmed with the buyer before production begins, not assumed from a default. The hydraulic and electrical schematic is provided in the documentation package so the local maintenance team can service the machine without translating wiring diagrams after delivery.
Q: What is the mould change procedure and time per format on the QT5-15?
A: The QT5-15 platform accepts moulds for hollow blocks, solid bricks, pavers, and kerbstones. Mould change involves releasing the clamping bolts, lifting the current mould with the overhead crane, seating the new mould, and recalling the matching PLC parameter profile. The exact changeover time depends on the operator’s familiarity and the crane setup on site, which is covered during commissioning training.
Q: What is the upgrade path if production volume or format range expands later?
A: The QT5-15 line can be extended with automatic stacking and cubing equipment added to the discharge end of the conveyor as volume grows. Additional moulds for new block formats can be designed and supplied to buyer drawings without replacing the press. The PLC control system stores additional mould profiles as new formats are added to production.
