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- QT4-24 Semi Auto Concrete Block Machine
QT4-24 Semi Auto Concrete Block Machine
Panel-controlled semi automatic press shipped in a plywood case, built for small scale hollow block, solid block and interlocking paver production.
Machine Overview
The QT4-24 shares the 13.45 kW electrical vibration press and 35.5 kN vibration force of the QT40-1 and adds a control box, so the operator works from buttons on a panel rather than at the machine. It is shipped as one unit in a plywood case, which keeps ocean freight low and means the machine only has to be connected to power on arrival. Moulds change the product between hollow blocks, solid blocks and interlocking paver bricks.
Key Benefits
- Control box operation: the cycle runs from panel buttons rather than by hand
- Low total investment with a short capital turnover on small production volumes
- Simple structure that local fitters can maintain without factory support
- Plywood case packing that cuts the ocean freight bill on a small order
- Three block families from one press by changing the mould
At A Glance
- Model
- QT4-24
- Type
- Semi Automatic Block Machine
- Family
- Semi Auto Concrete Block Machine
- Built in
- Linyi, Shandong, China
- Warranty
- 12 months from shipment on frame, vibration system, drive motors and PLC
Customisation
- Moulds designed from your block drawing and local wall standard
- Motor voltage and control cabinet built to your grid supply
- Free plant layout, machine foundation and batching plant drawings
- Free moulding test with your own aggregate before the order is confirmed
Each Part And What It Does
| Item | Function | Power | Technical detail |
|---|---|---|---|
| JD350 mixer | Mixes sand, fly ash, cement, stone dust and aggregate | 5.5 KW | 1.2 m pan diameter |
| Belt conveyor | Feeds mixed material to the machine hopper | 1.1 KW | 6000 mm long, 400 mm wide |
| QT4-24 block machine | Electrical vibration moulding, product set by the mould | 13.45 KW | No installation required |
| Control box | Panel buttons operate the moulding cycle | - | 1 set |
| Block trolley | Moves pallets to the curing area | - | Supplied with the set |
Who It Is For
- Buyers comparing semi automatic presses on delivered cost rather than list price
- Operators who want panel control instead of hand-operated levers
- Yards producing several block types in short runs
Problems It Solves
- Shipping cost that swallows the saving on a small machine
- Hand operation that varies the cycle and therefore the block density
- Maintenance that depends on a visiting engineer instead of local fitters
Application Scenarios
- Interlocking paver production for yards, driveways and walkways
- Solid block production where a clay brick supply is unreliable or restricted
- A starter plant in a market where import freight is a large part of the budget
- Block supply for a single construction company across several sites
Technical Features
- 13.45 kW electrical vibration press with a 30 second moulding period
- 35.5 kN vibration force across hollow, solid and interlocking moulds
- Control box with push-button operation of the moulding cycle
- JD350 pan mixer at 5.5 kW with a 6 m belt conveyor feeding the hopper
- 850 x 550 x 30 mm pallets, 600 supplied
Technical Parameters
Reproduced from the manufacturer specification. Where a figure is not published the table says so rather than carrying an estimate.
| Overall size | 2060 x 1730 x 1850 mm |
| Host machine power | 13.45 KW |
| Moulding period | 30 s |
| Vibration force | 35.5 KN |
| Pallet size | 850 x 550 x 30 mm |
| Pallet quantity supplied | 600 pcs |
| Machine weight | 3 T |
| Mixer model | JD350, 5.5 KW, 1.2 m pan |
| Belt conveyor | 6000 x 400 mm, 1.1 KW |
| Packing | Plywood case |
| Voltage | Built to local supply |
Quality Control In The Workshop
- Steel surfaces are polished and de-rusted before any welding work starts
- Regular parts are CO2 shielded welded and key stress points are robot welded
- The frame is shot blasted and finished in automotive grade paint
- 12 month warranty on frame, vibration system and drive motors from shipment
Use Guide
- Unpack the plywood case, position the machine on a firm level floor and connect power
- Set the mould for the block being produced and run a short trial batch
- Check the block edges after demoulding; adjust vibration time before running a full batch rather than after it
- Clean the mould at the end of each shift so cured cement does not build up on the moulding faces
Published Output By Block Size
Capacity is indicative. Actual output varies with operator efficiency, mould and material quality, which is how the manufacturer specification states it.
| Block size (mm) | Pcs per mould | Pcs per hour | Pcs per 8 hours |
|---|---|---|---|
| 400 x 100 x 200 | 7 | 630-840 | 5040-6720 |
| 400 x 150 x 200 | 5 | 450-600 | 3600-4800 |
| 400 x 200 x 200 | 4 | 360-450 | 2880-3600 |
| 400 x 250 x 200 | 3 | 270-360 | 2160-2880 |
| 240 x 115 x 53 | 24 | 2160 | 17280 |
| 225 x 112.5 x 60 | 12 | 959 | 7679 |
What The Machine Looks Like
How It Compares With The Alternatives
A technical comparison against the other ways of solving the same problem, using the figures each machine publishes for itself.
| QT40-1 semi automatic machine | Same press specification without the control box. The QT4-24 is the choice when panel operation and case packing matter. |
| QT40-2 manual machine | The QT40-2 is cheaper and hand fed at a 40 second cycle and 30 kN. The QT4-24 holds 35.5 kN and 30 seconds with a conveyor. |
| QT4-15 automatic machine | Hydraulic moulding, PLC control and 5000 to 7000 blocks per shift. The step up is justified when a single shift can no longer keep up with orders. |
QT4-24 Semi Auto Concrete Block Machine Questions
What does the control box change compared with the QT40-1?
How is the machine packed for shipping?
Can it make interlocking pavers?
Is any assembly required on arrival?
How long is the moulding cycle?
Machines Usually Considered Alongside This One
QT40-1 Semi Auto Cement Block Machine
Conveyor-fed electrical vibration press with a 30 second cycle, sized for a 60 square metre workshop and three to four workers.
630-840 pcs/hour at 400 x 100 x 200
QT4-25 Automatic Electrical Vibration Block Machine
PLC controlled press combining flat, mould and compression vibration for even density, with automatic plate supply and brick discharge.
576 pcs/hour at 400 x 200 x 200
QT40-2 Manual Cement Block Machine
Entry level manual block machine that presses hollow blocks, solid bricks and pavers with three workers and no site installation.
360-450 pcs/hour at 400 x 150 x 200Request A Quotation For The QT4-24
Send your block sizes, target output per shift, local voltage and workshop dimensions. A configuration list, layout drawing and quotation come back.