Description
Matched System Supply — machine, mould, pallet and handling specified together against your block format and local aggregate, not assembled from separate vendors.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-15A |
| Product Type | Fully Automatic Concrete Block Making Machine |
| Overall Dimensions (L×W×H) | 4100×1600×2600 mm |
| Rated Pressure | 16–21 MPa |
| Main Vibration Form | Platform Vibration |
| Vibration Frequency | 4200 r/min |
| Vibration Force | 55 kN |
| Pallet Size | 880×550 mm |
| Molding Cycle | 25–30 s (basis not stated in source — confirm block format and material) |
| Overall Power | 18.45 kW |
| Total Mass | 4 T |
| Demolding Method | Hydraulic |
| Factory Area | 300 m² |
| Applied Products | Concrete blocks, hollow/solid blocks, pavers, interlocking blocks, curbstone, colored pavers |
| Raw Materials | Crushed stone, sand, cement, dust, fly ash, gravel, slag |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for wall construction | Crushed stone, sand, cement, fly ash |
| Solid block manufacturing for load-bearing structures | Gravel, sand, cement blends |
| Paving block and colored paver runs | Fine aggregate with cement and pigment |
| Interlocking brick for landscape and retaining walls | Sand, crusher dust, cement |
| Kerbstone and curb units for road projects | Coarse aggregate with high-cement mix |
Why Voltage and Frequency Must Be Settled Before the QT4-15A Block Machine Ships
We confirm voltage, frequency and PLC display language in writing before the QT4-15A block machine leaves our factory, so your commissioning starts on day one.
A few years back I shipped a QT4-15 Paving Block Machine to a site in West Africa without triple-checking the local grid frequency. The control cabinet would not power up, the motor ran hot within minutes, and the contractor lost three weeks of a tight construction schedule while we sourced a matching transformer locally. That failure had nothing to do with the press itself — it was a paperwork gap. Since then, every order I handle gets a signed electrical confirmation sheet before the crate is sealed [NEED_CITE: voltage and frequency standards by export market]. The QT4-15A block machine in stock today is no exception; we hold the unit, verify your site power, and only then book the container.
Dispatch Timing You Can Build a Schedule Around
When a contractor is racing a construction milestone, vague lead-time promises do not help. We quote dispatch lead time in writing at the point of order and provide an arrival estimate based on the destination port, so you know when the QT4-15A block machine in stock will be on your floor. Stocked configurations and standard moulds are listed at inquiry, meaning the gap between payment and production start stays as short as the shipping route allows.
Container Loading and Machine Dismantling Transparency
A 4 T machine at 4100×1600×2600 mm does not walk into a 40HQ container on its own. We provide a dismantling scheme showing which sub-assemblies are separated, a loading diagram, and packing photographs before the doors close. This means your receiving team knows exactly what to expect and how to reassemble the QT4-15A block machine in stock when it arrives, cutting dock-to-floor time [NEED_CITE: container loading practices for heavy industrial equipment].
Reading the Numbers That Actually Matter on Site
The rated pressure range of 16–21 MPa and vibration force of 55 kN work together to compact the mix. Higher hydraulic pressure squeezes air from the mould cavity, while platform vibration at 4200 r/min settles fine aggregate around the coarse particles. If your local sand is fine and well-graded, lower pressure may suffice; if you rely on crusher dust with angular particles, pushing toward 21 MPa helps achieve consistent block density. The 880×550 mm pallet size dictates the footprint of every wet block leaving the press, so confirm that your curing racks and forklift tines match that span before the QT4-15A block machine in stock ships. A mismatch here means re-purchasing pallets or re-racking the entire curing yard.
The Hidden Cost of Skipping the Configuration Conversation
When a block machine arrives configured for a mix the buyer cannot source locally, the first production run fails strength tests and the plant sits idle while a new aggregate supply is negotiated. I have watched a fully automatic line lose an entire month because the original quote assumed river sand that was unavailable within a reasonable haul distance [NEED_CITE: aggregate sourcing challenges in emerging construction markets]. The same risk applies to pallet material: wooden pallets warp in humid curing rooms, while PVC pallets crack in freezing yards. These are not engineering defects — they are specification oversights that surface only after the container is unloaded.
What Stock and Delivery Discipline Looks Like Here
We focus exclusively on block machines, moulds, pallets and handling, so every item in the shipment is cross-checked for compatibility before dispatch. Standard moulds ship with the machine; additional format moulds follow on a stated lead time, not an open-ended promise. Voltage, frequency and control language are confirmed in writing, eliminating the commissioning delays that turn a fast delivery into a slow start. Factory test records are captured on the block format you intend to produce, so you see cycle performance on your product before the QT4-15A block machine in stock is crated. Packing photographs document condition at loading, giving you a baseline for any transit damage claim.
Documentation & Verification
- Line layout and capacity calculation stating the block format assumed for the QT4-15A
- Machine specification sheet with confirmed voltage, frequency and control language
- Mould drawing and format list covering every block type in your initial order
- Factory test record run on your target block format before dispatch
- Packing photographs showing machine condition at container loading
Installation, Commissioning & Support
- Foundation pad sized to 4100×1600 mm footprint with anchor bolt template supplied before arrival
- Dedicated electrical circuit rated for 18.45 kW confirmed against your local panel capacity
- Sub-assembly reassembly guided by dismantling scheme and loading photographs
- First-run cycle verification on your chosen block format with operator present
- Spare hydraulic seals and vibration motor brushes included in the initial shipment
- Mould change procedure practiced on site with your maintenance crew during commissioning
Getting the Details Right Before You Commit
Share your target block format, daily output requirement and the aggregate you can actually source locally. Tell us your site voltage, frequency and preferred PLC display language so the QT4-15A block machine in stock ships configured for your grid. If you have existing curing racks or forklifts, send the dimensions so the 880×550 mm pallet spec is validated against your yard.
Frequently Asked Questions
Q: Which QT4-15A configurations and standard moulds are currently available for immediate dispatch?
A: Stock status is confirmed at inquiry with a written list of available machine configurations and standard mould formats. Items listed as stocked ship on the quoted dispatch lead time, while custom moulds or non-standard configurations are built to order with their own timeline stated upfront.
Q: How is dispatch lead time determined and how do you estimate arrival?
A: Dispatch lead time covers final inspection, dismantling, packing and transport to the port. Arrival is estimated from the sailing schedule to your destination port and quoted in writing before you commit, so your project timeline can be planned around a known date rather than a guess.
Q: How is the QT4-15A dismantled and loaded into a 40HQ container?
A: The 4 T machine is separated into major sub-assemblies following a documented dismantling scheme. A loading diagram and packing photographs are shared before the container doors close, so your receiving team can plan reassembly equipment and floor space in advance.
Q: Can voltage, frequency and PLC display language be confirmed before shipment?
A: Yes. We require written confirmation of your site voltage, frequency and preferred control language before production or dispatch begins. This step prevents commissioning delays caused by electrical incompatibility when the machine arrives at your facility.
Q: What standard moulds ship with the machine and how quickly can additional moulds follow?
A: Standard moulds included in your order ship with the machine inside the same container. Additional moulds are quoted with their own lead time at the point of order, and we provide drawings for approval before manufacturing begins.
