Description
Stocked configurations ready for dispatch — every QT4-15 block machine in stock leaves our Linyi yard with container loading plan and port arrival estimate quoted before payment, so project deadlines are not left to chance.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | QT4-15A |
| Product Type | Automatic Hydraulic Concrete Block Making Machine |
| Overall Dimensions (L×W×H) | 7100 × 1600 × 2610 mm |
| Molding Cycle | 15–25 s depending on block format |
| Vibration Frequency | 4600 r/min |
| Vibration Force | 40–50 kN |
| Total Power | 18.45 kW |
| Mixer Model | JQ350 |
| Pallet Size | 850 × 550 × 25 mm |
| Total Weight | 3 T |
| Applied Products | Hollow block, solid brick, paver, curbstone |
| Raw Materials | Crushed stone, sand, cement, fly ash, dust |
| Automation Level | Semi-automatic with automatic stacker in line configuration |
| Output — Hollow Block 400×200×200 mm | 4 pcs/mould, 408 pcs/hr, 3264 pcs/8hr (basis: stated format) |
| Output — Hollow Block 400×150×200 mm | 5 pcs/mould, 510 pcs/hr, 4080 pcs/8hr (basis: stated format) |
| Output — Solid Brick 240×115×53 mm | 18 pcs/mould, 2100 pcs/hr, 17000 pcs/8hr (basis: stated format) |
| Hydraulic Pressure | To be confirmed per destination market |
| Voltage & Frequency | To be confirmed per destination market |
| Control System | PLC — brand and display language confirmed at order |
| Standards | CE declaration available |
Application Suitability
| Application | Material or Output |
|---|---|
| Hollow block production for building walls | Crushed stone, sand, cement, fly ash mixes |
| Solid brick manufacturing for masonry | Standard sand-cement and fly ash blends |
| Paving block production for roads and walkways | High-density crushed stone and cement |
| Curbstone forming for infrastructure | Coarse aggregate with cement binder |
| On-site block production at housing projects | Locally sourced aggregates with portable mixer |
What "In Stock" Should Actually Mean for Your QT4-15 Block Machine
A stocked machine that ships without its pallet handling and stacking components still leaves you stacking blocks by hand on day one.
I have watched containers arrive at port with the press and the mixer but no pallets, no stacker, and no curing rack plan. The buyer assumed those were extras to source locally, only to find that the pallet size was non-standard and local steel fabricators could not match the tolerances the press demanded. When a QT4-15 block machine in stock fast delivery is quoted, the packing list should read like a complete production cell, not a bare press with a hopper bolted on [NEED_CITE: standard container loading practices for block making equipment].
Dispatch Timeline That Matches Your Project Calendar
The gap between order confirmation and container departure is where most block plant schedules fall apart. With the QT4-15 block machine in stock fast delivery, the dispatch window is measured in days for standard configurations already assembled in the yard, not the typical multi-week lead times that custom-built presses require. The buyer receives the container loading plan and the estimated port arrival date before the proforma invoice is signed, allowing the site team to schedule foundation curing and electrical rough-in against a known timeline.
What the Container Actually Carries
A stocked QT4-15 does not arrive as a single assembled unit. The press frame, hydraulic station, mixer, pallet feeder, and stacker are dismantled into container-friendly sections. Each section is photographed before crating, and those packing photographs ship with the customs documentation. The total line weight of 3 T sits well within a standard 20-foot container payload, but the pallets — typically several hundred units — require separate bundling or a second container depending on quantity [NEED_CITE: container payload limits for heavy machinery shipments]. Knowing this upfront prevents the situation where half the production line is still on the water while the other half sits idle on the foundation.
Reading the Specs That Matter on Site
The vibration force range of 40–50 kN is not a single number because hollow blocks and solid bricks demand different compaction profiles. Hollow blocks at 400×200×200 mm need enough force to consolidate the web walls without collapsing the cores, while solid bricks at 240×115×53 mm require sustained pressure across the full face. The molding cycle of 15–25 s reflects this spread — a hollow block cycles toward the lower end, a dense paver toward the upper. The pallet size of 850×550×25 mm must match the curing rack slot width and the forklift tine spacing already on site; ordering a machine without confirming those dimensions means building new racks or replacing the forklift. The JQ350 mixer feeds the press at a rate matched to the 15–25 s cycle so the hopper never starves and the operator is never waiting on a batch.
When the Stocked Configuration Does Not Fit
A buyer who sources volcanic ash or laterite locally may find that the standard vibration settings produce blocks that crumble at the edges. I once shipped a press to South Africa where the buyer switched from standard sand to a local pozzolan without telling us beforehand — the blocks failed a drop test on arrival and it took two weeks of remote mix adjustment to stabilise production. The stocked QT4-15 is configured for the raw materials listed in the specification sheet: crushed stone, sand, cement, fly ash, and dust. If the buyer’s aggregate falls outside that envelope, the vibration frequency, cycle time, and hydraulic pressure all need recalibration, and a stocked machine may not be the right starting point [NEED_CITE: effect of pozzolanic materials on block compaction parameters]. Skipping the raw material sample step costs more in rework than the delay of a custom-configured build.
Why Buyers Source This Press From the Linyi Yard
Block machinery is the single manufacturing focus here, which means the press, moulds, pallets, and handling equipment are specified as one matched system — not assembled from separate suppliers and bolted together in the yard. Every QT4-15 in stock is tested with standard moulds before crating, and the factory test record travels with the shipment. Standard hollow, solid, and paver moulds ship with the stocked unit; custom mould drawings for formats the buyer’s market demands can follow in a separate crate. Automation is selectable — a buyer can take delivery of the semi-automatic configuration and add the full stacking and cubing upgrade later without replacing the press. Voltage, frequency, and PLC display language are confirmed in writing before the machine leaves the yard, so there is no commissioning delay caused by a control panel the operator cannot read [NEED_CITE: PLC language configuration requirements for export machinery].
Documentation & Verification
- Capacity calculation sheet stating the block format assumed for each hourly output figure
- Factory test record run on standard hollow and solid block moulds before dispatch
- Packing photographs showing dismantling method and container load plan
- Voltage, frequency, and PLC display language confirmation document signed at order
- Pallet specification listing size, material, and quantity included in the shipment
Installation, Commissioning & Support
- Foundation must accommodate 7100 × 1600 mm footprint with level tolerance for vibration table alignment
- Dedicated electrical circuit sized for 18.45 kW total draw with voltage confirmed at order
- Press frame, hydraulic station, and mixer arrive dismantled and require on-site reassembly
- First production run includes cycle time verification against the buyer’s actual mix design
- Operator training covers mould change procedure and PLC fault code reading in confirmed language
- Wear parts list covers hydraulic seals, vibration springs, and mould liner replacement intervals
What to Send With Your Inquiry
To confirm whether a stocked QT4-15 fits the project timeline, share the target block formats, daily output requirement, and local aggregate type. Include the site voltage and frequency, the PLC display language the operators will read, and the pallet quantity needed for the curing area. If the raw material falls outside standard sand and crushed stone, send a sample description so the configuration can be verified before dispatch.
Frequently Asked Questions
Q: Which QT4-15 configurations are currently in stock and what is the dispatch lead time?
A: Stocked units carry the standard semi-automatic configuration with automatic stacker, JQ350 mixer, and standard hollow, solid, and paver moulds. Dispatch lead time for stocked configurations is quoted in days from order confirmation, with the container loading plan and port arrival estimate provided before payment. Custom mould formats or voltage changes require a short production window and are quoted separately.
Q: How is the machine dismantled for container loading and what arrives at the destination port?
A: The press frame, hydraulic station, mixer, pallet feeder, and stacker are separated into container-friendly sections. Total line weight is 3 T, fitting within a standard 20-foot container for the press components. Pallets are bundled separately and may require additional container space depending on quantity. Packing photographs document every section before crating.
Q: What standard moulds ship with the stocked unit and how fast can additional formats be added?
A: The stocked QT4-15 ships with moulds for 400×200×200 mm hollow block, 240×115×53 mm solid brick, and standard paver formats. Additional moulds can be manufactured from buyer drawings and shipped in a follow-up crate. Mould change time depends on the format and operator familiarity and is confirmed during commissioning training.
Q: Is pallet quantity included in the stocked package and what material is used?
A: Pallet size is 850×550×25 mm and the material is confirmed at order based on the buyer’s curing method and forklift specifications. Quantity is listed in the quotation — it is not added later. Buyers should calculate pallet count against curing time and daily output to avoid bottlenecks in the curing rack.
Q: Can voltage and control language be adjusted after the machine leaves the factory?
A: Voltage and frequency must be confirmed before dispatch because the motor windings and transformer are set at the factory. PLC display language is also locked during programming. Changing either after shipment requires component replacement and delays commissioning, so both are confirmed in writing before the machine leaves the yard.
