Description
Dispatch-Ready Configuration — QTJ4-25 units are configured for confirmed voltage, pallet size, and PLC language before the container doors close, eliminating arrival-side delays.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QTJ4-25 |
| Product Type | Automatic Concrete Block Making Machine |
| Control System | PLC controlled, fully automatic operation |
| Machine Power | 16.58 kW |
| Molding Cycle | 25 seconds |
| Output Capacity | 4600 pcs/8hours (basis not stated in source — confirm block format / material / thickness) |
| Machine Weight | 5000 KGS |
| Overall Dimensions | 6400×1500×2700 mm |
| Vibration System | Vibration motor with large vibration box |
| Pallet Size | 850×480 mm |
| Motor Brand | Siemens |
| Voltage | Configurable to buyer’s local voltage and frequency |
| Raw Materials | Concrete, sand, cement, fly ash, crushed stone, lime, water |
| Automation Level | Fully automatic pallet feeding, material feeding and scraping, block stacking |
| Mould Formats | Hollow blocks, solid blocks/bricks, paver stone bricks |
| Warranty | One year |
Application Suitability
| Application | Material or Output |
|---|---|
| Medium-sized block factory | Hollow blocks from crushed stone, sand, and cement |
| Paver stone production | Interlocking and solid pavers from concrete mixes |
| Fly ash brick manufacturing | Solid bricks utilizing fly ash, lime, and sand |
| On-site contractor supply | Hollow and solid blocks for housing project deadlines |
Why Voltage Confirmation Must Happen Before the QTJ4-25 Automatic Block Machine in Stock Ships
A machine wired for the wrong frequency is a machine that cannot run on day one.
I once watched a container get unloaded in a West African port only for the buyer to discover the motor was wound for 380V/50Hz when the local grid supplies 220V/60Hz. The QTJ4-25 automatic block machine in stock sat idle while a replacement motor was sourced and air-freighted — three weeks of lost production while the construction deadline slipped [NEED_CITE: voltage and frequency standards by export market]. Confirming voltage, frequency, and PLC display language in writing before the machine leaves the factory floor is not a paperwork exercise; it is the difference between commissioning on arrival and commissioning weeks later.
Stock Availability Versus Catalogue Lead Times
The distinction between a machine that is physically ready and one that is "available" on a product sheet matters enormously when a project deadline is fixed. The QTJ4-25 automatic block machine in stock designation means the base press, vibration box, and frame are assembled and can be matched to your confirmed mould and pallet specification before dispatch. Standard hollow block and solid brick moulds can ship on the same loading plan. The question to ask at inquiry is not whether the model exists but which specific configurations — pallet size, motor winding, PLC language — are ready to go now and which require a production slot.
Container Loading and Machine Dismantling
A 6400×1500×2700 mm machine at 5000 KGS does not fit into a container as a single assembled unit. The QTJ4-25 is dismantled into its main frame, vibration platform, mould assembly, hydraulic and electrical cabinets, and pallet feeder for loading. The loading plan must account for pallet stock, spare mould springs, and wear plates occupying the remaining container space [NEED_CITE: container loading standards for heavy industrial machinery]. Buyers who confirm the packing list against their wear-part requirements before loading avoid the situation where a missing component halts trial production three weeks after arrival.
What the Specifications Mean on the Production Floor
The 25-second molding cycle is the press time per stroke; total output depends on pallet circulation speed, material feed consistency, and operator rhythm at the stacking end. The 850×480 mm pallet size determines not only the block count per cycle but also whether those pallets fit your existing curing racks and forklift tines — a mismatch here means replacing your entire curing infrastructure. The 16.58 kW total power draw dictates the dedicated circuit and transformer capacity required at the installation site; undersizing the supply leads to voltage drops that shorten motor life. The vibration motor and large vibration box work together to compact the concrete mix into the mould cavity, and the density of the finished block depends on matching vibration force to the specific aggregate and moisture content in your mix [NEED_CITE: concrete vibration principles for block density]. Siemens motors are specified for continuous duty rather than intermittent operation, which matters when the machine runs eight-hour shifts six days a week.
The Cost of Skipping the Pre-Shipment Checklist
When pallet specification is decided after the machine arrives rather than before, buyers discover their existing forklift cannot lift the loaded curing racks, or the pallets do not stack on their shelving. When the PLC display language is not confirmed, operators spend the first week deciphering error codes through translation apps instead of producing blocks. When wear parts are not packed against a checked list, the first mould spring failure becomes a line-stopping event rather than a five-minute changeover [NEED_CITE: common causes of block machine downtime in first year of operation]. These are not manufacturing defects; they are specification gaps that a pre-dispatch confirmation process is designed to close.
Why Source the QTJ4-25 From This Supply Chain
Block machinery is the single focus here, so the press, mould, pallet, and handling equipment are specified as one matched system rather than assembled from separate suppliers who have never spoken to each other. The configuration is set against your actual mix design, local aggregate, and target block format — not a catalogue default that assumes materials you cannot source. Mould design covers the formats your market actually sells, including custom drawings when standard sizes do not match local building codes. Automation level is selectable, meaning a buyer can start with the QTJ4-25’s fully automatic operation and add stacking or cubing automation later without replacing the press. Packing photographs are taken and shared before the container doors close, so you see exactly what is inside before it leaves.
Documentation & Verification
- Dispatch lead time confirmation in writing from inquiry to container loading date
- Voltage, frequency, and PLC display language confirmed before production begins
- Container loading plan showing dismantled components and pallet stock arrangement
- Factory test record demonstrating cycle timing on your specified block format
- Packing photographs provided before container sealing for your records
- Customs documentation package supporting import clearance at destination port
Installation, Commissioning & Support
- Dedicated 16.58 kW circuit with appropriate breaker sizing for the QTJ4-25 motor load
- Level concrete foundation required beneath the 6400×1500 mm frame footprint
- On-site reassembly of vibration box, mould carriage, and pallet feeder from dismantled shipment
- PLC parameter configuration and cycle timing calibration during commissioning visit
- Operator training covering mould changeover, pallet handling, and daily lubrication points
- Wear parts and mould spring inventory shipped with the machine for first-year coverage
What to Include in Your Inquiry
Provide your target block format, daily volume requirement, and local raw material availability so the machine and mould configuration can be matched to your actual production scenario. Confirm your site voltage, frequency, and preferred PLC display language to avoid arrival-side delays. Indicate your existing pallet dimensions and curing area layout so the 850×480 mm pallet specification can be validated or adjusted before the QTJ4-25 automatic block machine in stock is loaded for dispatch.
Frequently Asked Questions
Q: What is the dispatch lead time for the QTJ4-25 from inquiry to container loading?
A: Lead time depends on stock status for your required mould format and pallet configuration at the time of inquiry. Once voltage, frequency, and PLC language are confirmed in writing, the machine is prepared and dismantled for container loading. Buyers working to a fixed project deadline should state their required arrival date at first contact so the dispatch schedule can be evaluated against that constraint.
Q: How is the machine dismantled and loaded, and what container size is required?
A: The QTJ4-25 is dismantled into its main frame, vibration platform, mould assembly, electrical cabinet, and pallet feeder for shipment. A standard 40-foot container typically accommodates the machine along with pallet stock and spare wear parts. The loading plan is shared with the buyer before loading begins so container utilization can be confirmed.
Q: Is voltage and frequency confirmed before dispatch, or adjusted on arrival?
A: Voltage, frequency, and PLC display language are confirmed in writing before the machine leaves the factory. The motor winding and control panel are configured to match the buyer’s local electrical supply. This avoids the situation where a machine arrives configured for a voltage standard that does not exist at the installation site.
Q: What standard moulds are in stock and ready to ship with the machine?
A: Standard hollow block, solid brick, and paver stone moulds compatible with the 850×480 mm pallet are typically available. Specific format availability should be confirmed at inquiry, as stock varies with demand. Custom mould drawings can be produced for block formats that fall outside the standard range.
Q: What customs and import documentation is provided to support clearance?
A: A customs documentation package is included with every shipment, covering commercial invoice, packing list, bill of lading, and certificate of origin where required. The documentation supports import clearance procedures at the destination port. Buyers should confirm any country-specific certification requirements at the inquiry stage.
