Description
Stocked QT4-15A block machines dispatched within days, not weeks — we hold complete units with standard moulds ready to load, so your project timeline stays intact while other buyers wait on manufacturing slots.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-15A |
| Product Type | Fully Automatic Hydraulic Block Making Machine |
| Overall Dimensions | 7100×1600×2610 mm |
| Molding Cycle | 15-25 s |
| Vibration Frequency | 4600 r/min |
| Exciting Force | 40-50 KN |
| Rated Power | 18.45 kW |
| Mixer Model | JQ350 |
| Pallet Size | 850×550×25 mm |
| Net Weight | 3 T |
| Applied Products | paver, solid block, hollow block, curbstone |
| Raw Materials | crushed stones, sand, cement, dust, fly ash |
| Control System | PLC control system |
| Automation Level | Fully automatic (hydraulic station, pallet feeder, brick conveyor, block sweeper) |
| Output Capacity (Hollow Block 400×200×200 mm) | 408 pcs/hr (4 pcs/mould) |
| Output Capacity (Hollow Block 400×150×200 mm) | 510 pcs/hr (5 pcs/mould) |
| Output Capacity (Solid Brick 240×115×53 mm) | 2100 pcs/hr (18 pcs/mould) |
| Voltage & Frequency | Configurable (basis to be confirmed) |
| Hydraulic Pressure | (basis to be confirmed) |
| Mould Change Time | (basis to be confirmed) |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production | Crushed stone, sand, cement, and fly ash mixes for structural walls |
| Solid brick manufacturing | Dense aggregate blends for load-bearing and partition walls |
| Concrete paver production | Fine aggregate and cement for pedestrian and light-traffic surfaces |
| Curbstone forming | Coarse aggregate mixes for road edging and drainage channels |
What "In Stock" Actually Means for Your Project Deadline
A QT4-15A block machine in stock means the unit is built, tested, and sitting on the factory floor waiting for container loading — not queued for a production slot that may slip.
When contractors in Cameroon or Nigeria face a construction start date that will not move, waiting eight weeks for a machine to be manufactured is not an option. I have seen project timelines collapse because a buyer assumed "available" meant "ready to ship," only to discover the machine still needed to be built. A genuinely stocked unit eliminates that gap between order confirmation and the day the container leaves the port.
[NEED_CITE: typical lead times for built-to-order versus stocked concrete block machinery]
Dispatch Timing You Can Plan Around
When we confirm a QT4-15A block machine in stock is available, the dispatch lead time is measured in days, not months. The machine has already completed its factory test cycle, the hydraulic station has been pressure-checked, and the PLC control system has run through its program sequences. What remains is the packing, container loading plan, and customs documentation preparation — tasks that proceed on a predictable schedule once your voltage and language requirements are confirmed.
Container Loading and Pallet Count
The QT4-15A fast delivery package includes the machine, hydraulic station, pallet feeder, brick conveyor, and block sweeper as one matched set. With a net weight of 3 T, the unit fits into a standard 20GP container alongside approximately 500 pallets of 850×550×25 mm dimensions. Nude packing secures the press and ancillary stations, and packing photographs are provided before the container doors close.
Arrival Estimates Quoted Before Commitment
[NEED_CITE: ocean freight transit times from Chinese ports to West and Central African destinations]
We state the estimated arrival window from dispatch to your destination port at the quotation stage, not after you have committed. This allows you to coordinate site preparation, foundation curing, and raw material stockpiling against a known timeline. The QT4-15A block machine in stock model removes the manufacturing variable from your project plan, leaving only shipping and port clearance — factors we quote transparently.
Why Voltage and Language Confirmation Must Happen Before Dispatch
I once shipped a QT4-15 unit to a site where the control panel defaulted to English, but the operators only read French. Commissioning stalled on day one, and I had to flash the PLC remotely overnight to get the line running. With a stocked machine, this confirmation step is even more critical — the unit is ready to ship now, which means your voltage, frequency, and display language must be locked in before it leaves the factory. There is no production window to make adjustments later.
Matching the Pallet Size to Your Existing Curing Infrastructure
The 850×550×25 mm pallet dimension on the QT4-15A was selected to fit standard curing racks and forklift setups common in African block plants. If your site already operates with different pallet dimensions, confirming compatibility before dispatch avoids the situation where freshly pressed blocks have nowhere to go. This is a detail that surfaces quickly when the machine arrives and the pallet feeder starts cycling.
What the Molding Cycle Means Across Different Formats
[NEED_CITE: relationship between molding cycle time and aggregate mix design in block production]
The 15–25 second molding cycle applies across hollow blocks, solid bricks, pavers, and curbstones — but the actual cycle within that range depends on the format and your mix design. A 400×200×200 mm hollow block at 4 pieces per mould will sit at a different point in that range than a 240×115×53 mm solid brick at 18 pieces per mould. Understanding where your primary product falls within the cycle helps you plan daily output realistically.
Hydraulic Pressure and Vibration Force as a Matched Pair
The 4600 r/min vibration frequency and 40–50 KN exciting force work together with hydraulic pressure to compact the mix into the mould cavity. If your local aggregate includes a high proportion of fine dust or fly ash, the vibration characteristics interact differently with the mix than they would with coarse crushed stone. The QT4-15A’s hydraulic station is configured at the factory, but knowing your actual raw material blend helps us confirm the pressure setting matches your target block strength.
The Cost of Arriving Without a Loading Plan
When a machine ships without a confirmed container loading plan, you may find that ancillary equipment — the pallet feeder, brick conveyor, or block sweeper — was left behind or packed in a way that makes on-site reassembly difficult. I have seen situations where the hydraulic station arrived in one container and the pallets in another, delaying commissioning by weeks while the buyer waited for the second shipment. A stocked machine with a pre-confirmed loading plan avoids this fragmentation.
Why Documentation Completeness Matters at Customs
[NEED_CITE: customs documentation requirements for industrial machinery imports in African markets]
A QT4-15A block machine in stock still requires complete documentation before it clears your destination port. CE declarations where applicable, customs documentation support, and the factory test record must all accompany the shipment. Missing paperwork does not just delay clearance — it can result in demurrage charges that erode whatever time advantage you gained by buying stocked equipment.
Why Procurement Starts With Stock Verification
We hold QT4-15A units and standard moulds as a matched inventory, meaning the machine and its tooling are specified together rather than sourced separately. Dispatch lead time is stated in writing at inquiry, not estimated vaguely. The container loading plan and packing photographs are provided before shipment so you see exactly what is inside. Voltage, frequency, and PLC display language are confirmed against your local supply before the machine leaves.
Documentation & Verification
- Factory test record on your specified block format before dispatch
- Voltage and frequency confirmation sheet matched to your local grid
- PLC display language setting documented prior to shipment
- Packing photographs showing container loading arrangement
- CE declaration where applicable for your destination port
- Customs documentation support package for import clearance
Installation, Commissioning & Support
- Foundation requirements based on 7100×1600 mm footprint and 3 T operating weight
- Dedicated power circuit for 18.45 kW rated load with confirmed voltage and frequency
- Nude packing dismantling sequence documented for on-site reassembly
- PLC control system parameter setting against your mix design and block format
- Operator training covering mould change procedure and daily maintenance checks
- Wear parts and mould availability list provided at commissioning
What We Need to Confirm Your Dispatch Window
To move from inquiry to confirmed dispatch on a stocked QT4-15A, provide your target block format and daily output requirement so we match the correct standard moulds from inventory. Confirm your local voltage, frequency, and the PLC display language your operators will need on site. If you have existing curing racks or forklifts, share the specifications so we verify pallet compatibility before loading.
Frequently Asked Questions
Q: Which QT4-15A configurations are in stock right now and what is the dispatch lead time?
A: We hold fully automatic QT4-15A units with the hydraulic station, PLC control, pallet feeder, brick conveyor, and block sweeper as a matched set. Standard moulds for hollow blocks, solid bricks, and pavers are stocked alongside. Dispatch lead time is stated in writing at inquiry and measured in days once voltage and language are confirmed, not weeks of manufacturing.
Q: How is the machine packed and loaded into a 20GP container, and how many pallets ship with it?
A: The QT4-15A is nude-packed into a standard 20GP container with the press, hydraulic station, and ancillary equipment secured for ocean freight. Approximately 500 pallets of 850×550×25 mm are included in the same shipment. Packing photographs documenting the loading arrangement are provided before the container is sealed and dispatched.
Q: What is the estimated arrival time from dispatch to my destination port?
A: Arrival time depends on your specific port and current shipping schedules, and we quote this estimate at the quotation stage before you commit. This allows you to coordinate site preparation and raw material procurement against a known timeline. The stocked machine removes manufacturing delay, leaving only transit and port clearance variables.
Q: Can I order additional moulds from stock along with the machine, or do custom moulds require separate lead time?
A: Standard moulds for common hollow block, solid brick, and paver formats are held in stock and can ship with the QT4-15A in the same container. Custom mould designs based on your specific drawings require a separate manufacturing lead time, which we state at inquiry. This allows you to receive the machine and begin production while custom tooling is completed.
Q: What voltage and frequency configurations are available from stock versus built-to-order?
A: Stocked QT4-15A units can be configured to your required voltage and frequency before dispatch, and the PLC display language is set to match your operators. This confirmation must happen before the machine leaves the factory, as there is no production window to make adjustments later. We verify your local supply specifications at inquiry to ensure compatibility on arrival.
