Description
Stocked configuration ready for dispatch — the QTJ4-40 block machine ships with voltage confirmed against your local grid before it leaves the factory floor, avoiding the three-week transformer wait that can derail a project timeline.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QTJ4-40 |
| Product Type | Semi-Automatic Concrete Block Making Machine |
| Molding Cycle | 40 s |
| Rated Power | 9.5 kW |
| Overall Dimensions (L×W×H) | 1350 × 1460 × 1800 mm |
| Net Weight | 1 T |
| Pallet Size | 850 × 450 mm |
| Vibration System | Bed mould vertical vibration + upper mould compression vibration |
| Automation Level | Semi-automatic (top die push-pull, automatic scraper) |
| Voltage | Configurable to local supply (exact voltage and frequency to be confirmed before dispatch) |
| Raw Materials | Concrete, sand, cement, fly ash, lime, gypsum |
| Theoretical Productivity (400×200×200 mm hollow block, 4 pcs/mould) | 360 pcs/h, 2800 pcs/day (basis to be confirmed) |
| Theoretical Productivity (400×150×200 mm hollow block, 5 pcs/mould) | 450 pcs/h, 3600 pcs/day (basis to be confirmed) |
| Theoretical Productivity (225×112.5×60 mm solid brick, 9 pcs/mould) | 800 pcs/h, 6400 pcs/day (basis to be confirmed) |
Application Suitability
| Application | Material or Output |
|---|---|
| On-site hollow block production for building contractors | Crushed stone, sand and cement mixes |
| Small workshop solid brick manufacturing | Fly ash, lime, gypsum and cement blends |
| First block plant setup by entrepreneurs | Locally available aggregates with standard cement ratios |
| Immediate stock replenishment for distributors | Standard hollow block and solid brick formats |
Why the Voltage Question Must Be Settled Before Dispatch
An unsigned electrical confirmation sheet is the most common reason a stocked machine sits idle on arrival.
I once watched a QTJ4-40 block machine in stock arrive at a European site only to trip the main breaker the moment the operator switched it on. The local supply was 400V three-phase at 50Hz, but the machine had been wired for a different standard based on an assumption rather than a signed document. A replacement transformer took three weeks to source, and the contractor’s crew stood around a silent machine while the project clock kept running. That delay was entirely preventable with a single confirmation step before the container was sealed [NEED_CITE: voltage and frequency standards by export market].
Dispatch Timing That Matches Your Project Deadline
Buyers working against a construction schedule cannot absorb an eight-week production cycle. The QTJ4-40 block machine in stock is held as a complete unit with standard moulds and pallets, meaning the dispatch window is measured in days for container loading rather than months for fabrication. The lead time is quoted at the inquiry stage so the arrival estimate can be built into your project plan from the start.
Container Loading and Machine Dismantling for Transit
Shipping a block machine is not simply a matter of rolling it into a container. The QTJ4-40 is dismantled to fit standard container dimensions, with the vibration table, mould assembly and control panel secured separately to prevent transit damage. The packing photograph set sent before dispatch shows the exact loading configuration, so the receiving team knows what to expect when the container doors open [NEED_CITE: container loading standards for heavy industrial machinery].
How the 40-Second Cycle and Dual Vibration Shape Block Density
The 40-second molding cycle pairs bed mould vertical vibration with upper mould compression vibration. This dual action compacts the concrete mix from both directions, which directly influences block density and demoulding strength. The semi-automatic top die push-pull mechanism and automatic scraper reduce the physical effort required from the operator compared to fully manual machines, while keeping the machine footprint compact at 1350 × 1460 × 1800 mm. The 850 × 450 mm pallet size should be checked against the curing racks and forklift capacity already present at the buyer’s site, because a mismatch here forces a separate equipment purchase after arrival. The 9.5 kW rated power requirement means a dedicated circuit is needed, and this should be confirmed alongside the voltage and frequency configuration.
The Cost of Skipping Pre-Shipment Electrical Confirmation
Assuming the voltage is standard without written confirmation leads to commissioning delays that cascade through the entire project. A machine wired for the wrong frequency runs motors at incorrect speeds, which affects vibration force and ultimately block quality. The contractor then faces a choice between sourcing a transformer locally at a premium or waiting for a replacement unit to be shipped, both of which extend the period before the first saleable block leaves the line [NEED_CITE: motor speed and frequency relationship in industrial drives].
Why Procurement Through This Channel Works for Deadline-Driven Buyers
The QTJ4-40 is specified as a matched system — machine, mould and pallet are configured together rather than assembled from separate sources, which eliminates compatibility gaps at installation. Stock availability means the factory test is performed on the actual unit that ships, not a demonstration model, and the test record travels with the machine. Voltage and control language are confirmed in writing before dispatch, removing the most frequent cause of on-site delays. Customs documentation is prepared as part of the dispatch process, and packing photographs give the buyer visibility into container loading before the vessel sails. The focus stays on speed and ordering simplicity, because a buyer working to a project deadline does not have time to manage a complex procurement chain.
Documentation & Verification
- Factory test record on your specified block format before dispatch
- Voltage and frequency confirmation sheet signed before container sealing
- Packing photographs showing actual machine loading configuration
- Customs documentation package prepared for destination port clearance
- Pallet specification sheet matched to your curing area dimensions
Installation, Commissioning & Support
- Dedicated circuit required for the 9.5 kW rated power draw
- Machine arrives dismantled — reassembly of vibration table and mould frame needed on site
- 850 × 450 mm pallet compatibility check with existing forklift before first run
- Voltage verification against local supply before powering the control panel
- Standard mould set included for initial production without separate procurement
What to Include in Your Inquiry
To confirm dispatch timing and arrival estimate, share your target block format, required daily output, local voltage and frequency, and the pallet size your existing curing setup can accommodate. If you have a project start date, include it so the shipping schedule can be aligned to your site readiness.
Frequently Asked Questions
Q: Is the QTJ4-40 currently in stock and what is the dispatch lead time?
A: The QTJ4-40 block machine in stock is held as a complete unit with standard moulds and pallets. Dispatch lead time is quoted at the inquiry stage based on container availability and the pre-shipment confirmation steps required for your destination, typically allowing loading within a short window once electrical specifications are signed off.
Q: How is the machine packed and loaded for container shipment?
A: The QTJ4-40 is dismantled into major assemblies — vibration table, mould frame, and control panel — and secured within a standard container. Packing photographs are sent before the container is sealed so you can verify the loading configuration and prepare your receiving area accordingly.
Q: Can voltage and frequency be matched to my local supply before dispatch?
A: Yes. The exact voltage and frequency must be confirmed in writing before the machine is wired. This step is mandatory before dispatch to prevent on-site commissioning failures. A signed electrical confirmation sheet is required before the unit enters the packing stage.
Q: What moulds are included and can additional moulds ship in the same container?
A: The standard mould set ships with the QTJ4-40. Additional moulds for other block formats can be included in the same container if space permits, which is confirmed during the loading plan stage. Share your target formats early so mould compatibility is verified before dispatch.
Q: What arrival timeline should I expect from dispatch to port delivery?
A: Sea transit duration depends on the destination port and shipping line schedule. An arrival estimate is provided at the quotation stage so you can align site preparation, customs clearance, and crew scheduling around a known delivery window rather than an open-ended wait.








