Description
Matched to your cycle — the QT4-15A block machine in stock ships only after voltage, frequency, and pallet sizing are confirmed against your site, so it runs the day it is powered on.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-15A |
| Product Type | Fully Automatic Concrete Block Making Machine |
| Overall Dimensions (L×W×H) | 4100×1600×2600 mm |
| Total Mass | 4 T |
| 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 |
| Demolding Method | Hydraulic |
| Factory Area Required | 300 m² |
| Automation Level | Fully Automatic |
| 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 housing projects | Crushed stone, sand, cement, fly ash |
| Solid block manufacturing for load-bearing walls | Gravel, sand, cement, slag |
| Paving block and colored paver runs | Fine aggregate, cement, pigment |
| Interlocking brick and curbstone forming | Sand, dust, cement mixtures |
| On-site block production for contractors | Locally sourced aggregate and cement |
Why the Voltage Question Must Come Before Dispatch
A stocked machine that cannot be powered on arrival is not fast delivery — it is a delayed project.
I spent years moving between the Pearl River Delta dispatch warehouse and overseas project sites, and the most expensive delays I have seen had nothing to do with shipping times. One contractor ordered a QT4-15 block machine in stock for a tight deadline, confirmed the deposit on a Monday, and had the machine on a vessel by the end of the week. It arrived at a 440V three-phase site with a 380V electrical cabinet. A transformer took three weeks to ship from China while an entire crew stood idle. [NEED_CITE: voltage and frequency standards by export market] The QT4-15A block machine in stock avoids this trap by forcing the voltage and frequency confirmation into the order process before the machine leaves the factory floor, not after it clears customs at your port.
Dispatch Readiness Starts at the Factory Gate
When you need a QT4-15A block machine in stock, the clock starts the moment the deposit lands. This unit is configured for prompt dispatch with its hydraulic demolding system and platform vibration assembly tested as a complete machine. The 4 T total mass fits within a standard container load, meaning dismantling for shipment follows a documented sequence and reassembly at your site does not require specialized rigging beyond what a typical block plant contractor already has on hand.
Container Loading and Arrival Timing
The advantage of ordering a machine that is already built and tested is that container loading photographs and packing lists are generated from an actual unit, not a production schedule. Buyers working against a construction milestone or a committed site handover date receive a dispatch lead time in writing along with an arrival estimate for their destination port. [NEED_CITE: typical ocean freight transit times for industrial machinery] The QT4-15A block machine in stock is dismantled, secured, and documented so that customs clearance at arrival does not become a second bottleneck after the ocean transit.
What the Specs Mean on Your Production Floor
The 16–21 MPa rated pressure working together with 55 kN vibration force at 4200 r/min determines how densely the concrete mix is compacted into the mould. Higher compaction density translates directly to block strength, which is what your local building code inspectors will test. The 880×550 mm pallet size is not an arbitrary number — it must match the curing racks you already have or plan to build, and the fork spacing on the forklift that will move wet blocks from the press to the curing area. A mismatch here means blocks are handled by hand or pallets are replaced at additional cost before the first production run. The 18.45 kW overall power draw tells your electrician what dedicated circuit the machine needs, and whether your existing transformer has the headroom or if a separate supply line must be pulled to the plant floor.
The Hidden Cost of Skipping Pre-Shipment Confirmation
Rushing a machine out the door without confirming the destination electrical standard, PLC display language, or pallet compatibility creates problems that surface only after the machine is bolted to your factory floor. A control panel in the wrong language slows every mould change and troubleshooting session. A pallet size that does not match your curing rack spacing forces a capital expense you did not budget for. [NEED_CITE: common commissioning delays in exported block machinery] These are not defects — they are configuration errors that could have been caught before the container was sealed.
Why Source This Machine Here
Block machinery is the single focus of this operation, so the QT4-15A is specified as one matched system — press, mould, pallet, and handling — rather than assembled from separate suppliers who have never spoken to each other. Configuration is set against your actual mix design and local aggregate, not a catalogue default that may not reflect what you can source within fifty kilometers of your plant. Standard moulds for the formats your market actually sells are stocked alongside the machine, so you are not waiting for a custom tooling run after the press arrives. Automation level is selectable, meaning you can start with the fully automatic QT4-15A and plan an upgrade path for stacking and cubing as your output grows. Documentation arrives with the machine — not weeks later by email — so your customs broker and installation crew have what they need from day one.
Documentation & Verification
- Factory test record on your specified block format before dispatch
- Voltage and control language confirmation sheet signed off pre-shipment
- Machine specification sheet with pallet size and pressure ratings
- Mould drawing and format list matching your order configuration
- Packing photographs and container loading record for your file
- Customs documentation support package for destination clearance
Installation, Commissioning & Support
- 300 m² factory area requirement confirmed against your site plan before shipment
- 18.45 kW power draw verified against your local supply and dedicated circuit capacity
- 4 T machine dismantled for container loading with documented reassembly sequence
- 880×550 mm pallet format matched to your existing curing racks and forklift equipment
- PLC display language confirmed to operator preference before the control cabinet ships
- Hydraulic and electrical schematics provided for your on-site maintenance team
What We Need to Move Forward
To confirm availability and generate an arrival estimate for your port, share your destination country, local voltage and frequency standard, and the block format you plan to run first. If you already have curing racks and material handling equipment on site, send the pallet dimensions and forklift specifications so the configuration matches what is already on your floor.
Frequently Asked Questions
Q: Is the QT4-15A block machine currently in stock or built to order?
A: The QT4-15A is held as a stocked model ready for prompt dispatch. Standard moulds for common block formats are also available from inventory. Before placing a deposit, confirm the specific mould configuration you need so the complete package ships together rather than requiring a second consignment for tooling.
Q: What is the dispatch lead time after deposit confirmation?
A: Once the deposit is confirmed and pre-shipment details such as voltage, frequency, and PLC language are verified, the QT4-15A is prepared for container loading within a short turnaround. Dispatch lead time is provided in writing at the quotation stage so you can plan your site preparation and crew scheduling against a known date.
Q: How is the machine loaded into a container for shipment?
A: The QT4-15A at 4 T total mass is dismantled into major assemblies and secured within a standard container. Container loading photographs are taken and shared with the buyer before the container is sealed. The dismantling sequence is documented so reassembly at your site follows a clear procedure without guesswork.
Q: Can I get an arrival estimate before placing the order?
A: Yes. Once your destination port is confirmed, an arrival estimate covering ocean transit and expected delivery window is quoted upfront. This allows you to align your construction milestone or site handover date with the machine’s expected arrival, reducing the risk of crew idle time.
Q: What documentation comes with the machine for customs clearance?
A: The shipment includes a packing list, commercial invoice, machine specification sheet, and factory test record. Additional customs documentation support is provided to match the import requirements of your destination country, helping your broker clear the consignment without delays at the port of entry.
