Description
Stocked for dispatch — the QT4-15B ships with container loading planned and arrival dates quoted before you commit, cutting the wait between deposit and production start.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-15B |
| Product Type | Automatic Construction Block Machine |
| Control System | Computer controlled, fully automatic |
| Vibration Mode | Multiaxis synchronizer vibration (vertically downward) |
| Hydraulic System | High thermal efficiency design, low heat generation |
| Mixer System | Multiaxis forced mixer |
| Guide Bearing | Long-period over-length guide bearing for upper mould and mould box alignment |
| Rack Construction | High strength steel with special welding technique for vibration shock resistance |
| Cycle Time | 15–20 s (basis not stated in source — confirm block format, material and thickness) |
| Output Capacity | 900–1200 pcs/h based on 400×200×200 mm hollow block, 4 pcs/mould |
| Output Capacity | 1080–1440 pcs/h based on 400×150×200 mm hollow block, 5 pcs/mould |
| Output Capacity | 2880–3840 pcs/h based on 200×100×60 mm paving block, 16 pcs/mould |
| Output Capacity | 5930–6720 pcs/h based on 240×115×53 mm standard brick, 28 pcs/mould |
| Mould Format Range | Hollow block, multicellular brick, paving brick, standard brick |
| Warranty | 1 year for whole machine (excluding spare parts) |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for building walls | Crushed stone, cement, sand and fly ash blends |
| Paving block for walkways and parking areas | High-density concrete with fine aggregate |
| Standard brick for masonry infill | Cement and local sand or quarry dust |
| Multicellular brick for lightweight partitions | Lightweight aggregate and cementitious binder |
What "900 to 1200 Pieces per Hour" Leaves Out About the QT4-15B Block Machine in Stock
The quoted figure assumes a 400×200×200 mm hollow block — switch the mould and the hourly number changes entirely.
I once watched a buyer sign off on a capacity figure, only to discover on site that the daily target was based on a standard brick format the seller never calculated. The QT4-15B block machine in stock can run four pcs per mould at one rate and twenty-eight pcs per mould at a completely different rate, yet both numbers can appear under the same "capacity" heading [NEED_CITE: block machine capacity calculation standards by format]. When a seller gives you one output number without naming the format, the pallet size, or the cycle time behind it, you are comparing a guess to a contract.
Dispatch Timing That Matches Your Project Deadline
Buyers working to a fixed handover date cannot afford a machine that sits in a factory waiting for parts. The QT4-15B block machine in stock leaves the warehouse as a stocked unit, meaning the frame, hydraulic pack, and PLC cabinet are already assembled and tested. Container loading plans are drawn before the deposit clears, so you know which open-top or flat-rack holds the press and which standard container carries the moulds and pallets.
Arrival Estimates Quoted Before the Contract
A fast delivery means nothing if the machine arrives after your scaffolding is already up and your masons are idle. We quote an estimated arrival window at the inquiry stage, based on the port of loading, the shipping line schedule, and your discharge port. That estimate is updated when the vessel booking is confirmed [NEED_CITE: typical ocean freight transit times from Qingdao to Southeast Asian ports].
Reading the Specs That Matter on Site
The multiaxis synchronizer vibration directs force vertically downward, which concentrates compaction energy into the block cavity rather than scattering it sideways. This matters when your local aggregate is angular crushed stone — uneven vibration leads to weak corners and rejected blocks at the curing rack. The long-period over-length guide bearing keeps the upper mould aligned with the mould box across thousands of cycles, preventing the uneven wall thickness that causes pallets to jam in the stacking station. The forced mixer handles raw materials of different density and moisture content, so a change in sand source does not force a full recalibration of the mix design.
The Cost of Skipping the Voltage Check
I once shipped a machine to the Philippines without double-checking the local supply, and the 380 V motor could not start on a 220 V three-phase site. The buyer spent two weeks rewinding the stator with a local electrician while the block line sat idle [NEED_CITE: voltage and frequency standards by export market]. That delay is avoidable: confirm your site voltage, frequency, and plug type at inquiry, and the QT4-15B block machine in stock ships with the correct motor winding and transformer from day one.
Why Source the QT4-15B Here
Block machinery is the only product line we build, so the press, mould, pallet and handling equipment arrive as a matched set rather than an assembly of unrelated components. Every configuration is checked against your actual mix design and local aggregate, not pulled from a generic catalogue row. Mould design covers the formats your market actually sells, and custom drawings are accepted when standard formats do not match. Automation level is selectable, so you can start with semi-automatic pallet handling and add a stacker later without replacing the press. Installation and commissioning include operator training on the specific block formats you will produce first.
Documentation & Verification
- Line layout drawing with capacity calculation stated per block format
- Machine specification sheet matching your confirmed voltage and frequency
- Mould drawing and format list for every block you will produce
- Factory test record on your target block format before dispatch
- Packing photographs and container loading plan before shipment
- Customs documentation package including CE declaration where applicable
Installation, Commissioning & Support
- Foundation plan sized to the QT4-15B vibration load and rack footprint
- Dedicated circuit with confirmed voltage and frequency for the hydraulic pump motor
- Machine dismantled into press, hydraulic pack and PLC cabinet for container loading
- On-site alignment of guide bearings and vibration table before first production run
- Operator training on mould change, cycle adjustment and PLC fault codes
- Wear parts list with part numbers for hydraulic seals and vibration motor bearings
Before You Request a Quote
Tell us which block formats you sell today and which you plan to add, along with your target daily output per format. Share your local aggregate type, cement source, and any existing pallet size so we can size the mould and curing rack to match. Confirm your site voltage, frequency, and preferred PLC display language so the QT4-15B block machine in stock ships ready to run the day it is wired.
Frequently Asked Questions
Q: Which QT4-15B models and standard moulds are currently in stock and ready to ship?
A: The QT4-15B press frame, hydraulic unit and PLC cabinet are stocked as standard configurations. Common hollow block and paving brick moulds are also available from inventory. For specialised formats or non-standard pallet sizes, production lead time applies — we confirm availability at the inquiry stage.
Q: What is the dispatch lead time and can an arrival estimate be quoted upfront?
A: Stocked units are dispatched within a short window after deposit, subject to final electrical confirmation. We provide an estimated arrival date at the inquiry stage based on the shipping line schedule and your discharge port, updated once the vessel booking is confirmed.
Q: How is the machine dismantled for container loading and what is the packing arrangement?
A: The press, hydraulic pack and control cabinet are separated for loading into standard or open-top containers. A packing list and container loading plan are shared before shipment so you know which components arrive in which container and in what order they should be unloaded.
Q: Are pallets, stacking equipment and curing racks included or quoted separately?
A: The shipment scope is stated in the quotation line by line. Pallets, automatic stackers and curing racks are available as line items, so you can see exactly what is included and what is optional before committing.
Q: What voltage and frequency configurations are available from stock versus built to order?
A: Standard motor windings and transformer ratios are kept for common export voltages. If your site runs on a less common frequency or supply, we confirm the exact configuration at inquiry so the correct components are fitted before dispatch rather than rewound on arrival.
