Description
Dispatch Clarity — Every QT4-15 block machine in stock ships with container loading photos and arrival estimates confirmed before the deposit clears.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-15 |
| Product Type | Fully Automatic Concrete Block Making Machine |
| Overall Dimension | 4100 × 1600 × 2600 mm |
| Rated Pressure | 16–21 MPa |
| Vibration Force | 55 kN |
| Vibration Frequency | 4200 r/min |
| Main Vibration Form | Platform Vibration |
| Pallet Size | 880 × 550 mm |
| Molding Cycle | 25–30 s (basis not stated in source — confirm block format, material, and thickness) |
| Overall Power | 18.45 kW |
| Total Mass | 4 T |
| Demolding Method | Hydraulic |
| Factory Area Required | 300 m² |
| Container Loading | 1 × 40HQ (basic equipment) |
| Warranty | 1 year |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for residential walls | Crushed stone, sand, cement, fly ash |
| Solid block manufacturing for load-bearing structures | Gravel, cement, slag blends |
| Paving block runs for walkways and driveways | Colored aggregates, dust, cement |
| Interlocking brick for retaining walls | Sand, crushed stone, cement |
| Curbstone production for road edging | Gravel, slag, cement |
What "25–30 Seconds per Cycle" Actually Means for Your Project Timeline
A cycle time is only honest when tied to a specific block format.
Buyers working against a construction deadline often receive molding cycle figures with no format attached. A 25-second cycle on a thin paver does not translate to the same number on a 200 mm hollow block. The QT4-15 block machine in stock carries a 25–30 second molding cycle, yet that figure must be validated against your target block dimensions, raw material moisture content, and compaction requirements before you commit to a daily output number. [NEED_CITE: block density standards vary by regional building code]
I have watched project contractors lock in a machine based on a cycle time that was measured on a format they never intended to produce. When the real block goes into the mould, the cycle stretches and the entire production schedule shifts. Confirming the cycle per format before dispatch eliminates that gap.
Stock Availability Versus Built-to-Order Reality
The difference between a stocked QT4-15 block machine in stock and a production-scheduled unit often comes down to weeks of waiting. When a machine sits in the factory ready to go, the lead time collapses to container booking and ocean transit. I confirm dispatch timelines in writing before any payment transfers, so buyers know exactly when the equipment clears customs at the destination port.
Container Loading and What Happens Inside the 40HQ
A 4-ton machine does not simply roll into a container. The QT4-15 is dismantled into major assemblies — the main frame, hydraulic station, mould assembly, and pallet feeder — and secured with blocking and bracing to survive weeks at sea. Packing photographs go to the buyer before the container doors seal. This is standard practice, yet I have seen shipments arrive with hydraulic lines crushed because the loading plan was never documented.
Reading the Pressure and Vibration Numbers
The 16–21 MPa rated pressure and 55 kN vibration force work together to compact the mix into a dense, consistent block. Higher hydraulic pressure squeezes out air voids while the platform vibration at 4200 r/min settles aggregate particles into position. If your local aggregate is angular crushed stone rather than rounded river gravel, you will need the full pressure range to achieve target strength. The 880 × 550 mm pallet size must also match your existing curing racks and forklift dimensions — a mismatch here means replacing your entire curing infrastructure after the machine arrives. [NEED_CITE: aggregate shape influence on concrete block compressive strength]
The Cost of Skipping Voltage and Language Confirmation
When voltage, frequency, and PLC display language are not confirmed before the machine leaves the factory, commissioning stalls the moment the electrician opens the panel. A 380 V / 50 Hz machine dropped onto a 220 V / 60 Hz site will not run without a transformer, and a control screen in the wrong language turns operator training into guesswork. I verify these three items on every QT4-15 block machine in stock before dispatch so the first power-on matches the first production day. [NEED_CITE: voltage and frequency standards by export market]
Why Source This Machine Here
Block machinery is our only product line, which means the press, mould, pallet, and handling equipment are specified as a matched system rather than sourced from separate vendors. Each QT4-15 block machine in stock is configured against the buyer’s actual mix design and target format, not pulled from a generic catalogue. Mould designs cover the formats your local market demands, and custom moulds can be built from your drawings. Automation level is selectable — start semi-automatic and add stacking later. Factory testing runs on your specified block format before the machine ships.
Documentation & Verification
- Line layout and capacity calculation stating the exact block format assumed for the QT4-15
- Mould drawing and format list showing every cavity dimension before production
- Pallet specification matched to your curing area and forklift capacity
- Voltage, frequency, and PLC display language confirmed in writing before dispatch
- Factory test record showing cycle times on your target block format
- Packing photographs documenting container loading before seal
Installation, Commissioning & Support
- Foundation must support the 4 T machine mass with a level concrete pad across the 4100 × 1600 mm footprint
- Dedicated 18.45 kW power circuit at confirmed voltage and frequency, separate from welding loads
- Major assemblies reassembled on-site with hydraulic lines pressure-tested before first cycle
- Molding cycle validated on your block format during commissioning, adjusting vibration and pressure as needed
- Operator training covers mould change procedure and daily lubrication points
- Wear parts list provided so the first reorder of vibration seals and hydraulic hoses ships on time
Before You Send the Inquiry
Provide the block formats you intend to produce — dimensions, wall thickness, and target daily volume. Share your local aggregate type and the moisture conditions in your curing area. Confirm your site voltage and the language your operators will need on the control screen. With those details, a dispatch timeline and container loading plan can be quoted on the same day.
Frequently Asked Questions
Q: Is the QT4-15 currently in stock or built to order?
A: The QT4-15 block machine in stock is held at the Linyi factory ready for container loading. Availability is confirmed at inquiry with the specific machine serial number assigned to your order. If your required mould or voltage configuration needs adjustment, a short preparation period applies before dispatch.
Q: What is the dispatch lead time and estimated arrival at my port?
A: For a stocked unit with standard configuration, dispatch occurs once container space is booked and the loading inspection is complete. Ocean transit time depends on your destination port. An arrival estimate is provided at the quotation stage so you can plan site preparation around a known date.
Q: How is the machine dismantled and loaded into a 40HQ container?
A: The QT4-15 is separated into the main frame, hydraulic station, mould, and pallet feeder. Each assembly is secured with timber blocking and steel strapping inside the container. Packing photographs are sent to the buyer before the container is sealed and handed to the shipping line.
Q: Which standard moulds ship with the machine from stock?
A: Standard hollow block and solid block moulds are typically available for immediate loading. Paver and interlocking brick moulds may require a short preparation period depending on the cavity layout you need. The exact mould list is confirmed at inquiry based on current stock.
Q: Can voltage and control language be confirmed before dispatch?
A: Yes. Voltage, frequency, and PLC display language are verified against your site specifications before the machine leaves the factory. This step is part of the standard pre-dispatch checklist so commissioning is not delayed by electrical or interface mismatches.
