QT4-20 block machine is the most popular fully automatic concrete block production line
QT4-20 block machine has the advantages of high cost performance, high degree of automation, mature technology, high quality and large output of hollow concrete bricks. The QT4-20 block machine production line can realize the steps of automatic mixing of raw materials, automatic feeding of raw materials, automatic vibration hydraulic molding, automatic stacking of hollow concrete bricks, etc. Moreover, the mold of QT4-20 block machine can be replaced, that is, if you buy a QT4-20 block machine, you can produce hollow bricks, solid bricks, pavement bricks and other brick types.
Five reasons why you must buy the QT4-20 block machine production line
First of all, compared with semi-automatic brick machine and manual brick making machine, QT4-20 block machine has great advantages in terms of machine quality, production efficiency and the quality of the finished concrete bricks produced.
QT4-20 block machine adopts PLC electric control box with high precision, stable operation and touch screen design, customers can easily realize both automatic and manual operation modes. The electric control box of QT4-20 block machine can unify the settings of vibration molding time, pressure, etc., so that the quality of the produced hollow concrete bricks remains uniform, which is suitable for large-scale and standardized production.
We also provide customers with supporting equipment such as mixers, conveyor belts, batching silos, palletizers, forklifts, etc. We use automated and scientific batching to accurately control the raw material ratio and supply speed of the QT4-20 block machine. We can clearly calculate the time and raw material consumption required for the QT4-20 block machine to produce each hollow concrete brick.
Our QT4-20 block machine has two-bin batching bins, three-bin batching bins, and four-bin batching bins, which can achieve automatic proportioning of two, three or even four raw materials. The batching bin of the QT4-20 block machine adopts an electronic weighing system, which will automatically proportion according to the set raw material proportion, avoiding errors caused by manual operation.
The output of QT4-20 block machine is also very impressive. QT4-20 block machine uses 850*550mm and 880*550mm pallets, and can form 4 400*200*200mm concrete hollow bricks at one time. The molding cycle of QT4-20 block machine is 15-20s each time, so the daily output of QT4-20 block machine is 5800-11000 concrete bricks, which can fully meet the needs of a small and medium-sized brick factory.
Technical Data
- Tab1
- Tab2
Specification Parameter
| Overall Size | 3800*2100*2300mm |
| Shaping Cycle | 15-20 seconds |
| Main Power | 22.5kw |
| Vibration Force | 35.5KN |
| Pallet Size | 850*550*20mm、880*550*20mm |
| Mixer | JQ500 |
| Total Weight | 3600kg |
| Worker | 3-4 Worker |
| Block mould | One set for free |
| Belt conveyor machine | 6 m length |
| Color | Customizable |
| Machinery Test Report | Provided |
| Raw material | Fly Ash Cement Sand Concrete |
| Place of Origin | Shandong |
| Condition | New |
| After-sales Service Provided | Engineers available to service |
| Product name | QT4-20 block machine |
QT4-20 block machine production capacity:
What advanced production and processing technologies does QT4-20 block machine use?
01.Solenoid valve
In the hydraulic system of QT4-20 block machine, the solenoid valve can control the flow of hydraulic oil to realize feeding, hydraulic pressure, demoulding and other actions. The solenoid valve, hydraulic oil pipe and PLC electric control box of QT4-20 block machine form a complete automatic control system.
02.Material Feeding Track
The function of the material feeding track of the QT4-20 block machine is to accurately and evenly fill the mold box with concrete raw materials. Sufficient concrete raw materials in the mold box of the QT4-20 block machine are an important guarantee for the molding of hollow concrete bricks, otherwise the hollow concrete bricks will be short of materials and loose. The material feeding track of the QT4-20 block machine is made of finely processed track steel, which is very wear-resistant and has a long service life.
03.Hydraulic Tube
In the hydraulic system of QT4-20 block machine, hydraulic tube plays a vital role and is called the “blood vessels” of the hydraulic system of QT4-20 block machine. Hydraulic tube connects hydraulic pump and hydraulic cylinder, and transmits hydraulic oil to realize the actions of mold rising, falling and molding. The hydraulic tube selected by HENRY is of high quality and good sealing.
04.Electrical motor
The electrical motor provides power support for the QT4-20 block machine’s actions of mixing raw materials, transporting raw materials, vibrating and forming, and stacking bricks. The motor used in the QT4-20 block machine is an imported Siemens motor with stable power output, reliable quality, low noise, and a service life of more than ten years.
05.Block mould
QT4-20 block machine is equipped with different molds to produce concrete bricks of different sizes. The molds of QT4-20 block machine can also be customized. The molds produced by HENRY are made of thickened high manganese steel. Through production processes such as wire cutting and heat treatment, the surface is finally rust-proofed. The quality is very strong and rust-free.
06. PLC controller box
PLC controller box plays a vital role in the production process of QT4-20 block machine, controlling the operation of motor and hydraulic system to ensure the precise production of QT4-20 block machine. The PLC controller box of QT4-20 block machine can set parameters such as each action step and vibration time, and can select automatic mode and manual mode according to production needs.
07.Block Machine Steel Plate
The requirements of QT4-20 block machine for steel are very strict. The quality of steel directly determines the service life and safety of QT4-20 block machine. The main structure of QT4-20 block machine adopts Q345B thickened high-strength steel. The QT4-20 block machine produced in this way has high strength, no deformation and corrosion resistance. Q345B steel is not only high in strength, but also has a low carbon content, which is very suitable for welding processes such as gas shielded welding.
08.Automatic board feeding system
The automatic board delivery system is an important part of the QT4-20 block machine to achieve automated production. The automatic board delivery system of the QT4-20 block machine is controlled by a PLC electric control box, which can accurately place the fiberboard in the designated position, improve production efficiency, and eliminate the safety hazards caused by manual board delivery.
Advantages of QT4-20 block machine
Workers use concrete hollow bricks to build a house
- Real pictures from the scene
Some concrete block pictures and parameters (6)
Size:400×150×200mm
5 pieces per mould
900 pieces per hour
7200 pieces per 8 hours
Size:400×200×200mm
4 pieces per mould
720 pieces per hour
5760 pieces per 8 hours
Size:400×100×200mm
7 pieces per mould
1260 pieces per hour
10080 pieces per 8 hours
Size:225×112.5×60mm
12 pieces per mould
2160 pieces per hour
17280 pieces per 8 hours
Size:200×100×60mm
14 pieces per mould
2520 pieces per hour
20160 pieces per 8 hours
Size:200×163×60mm
8 pieces per mould
1440 pieces per hour
11520 pieces per 8 hours
Qt4-20 automatic brick making machine can produce different brick types.
What after-sales service can HENRY provide to customers?
First, HENRY will provide a one-year quality guarantee for the block machines purchased by customers. If there is non-human damage, HENRY can replace the damaged parts free of charge. Secondly, HENRY will provide customers with operation guides and video guidance for block machines. HENRY’s after-sales team can provide customers with remote online guidance such as telephone and video connection. If customers have further needs, HENRY can also send engineers to the customer’s site for guidance and training until the customer fully masters the operation of the block machine.
Customers from all over the world are willing to choose HENRY block machine.
What equipment is needed for a complete QT4-20 block machine production line? (5)
Mixing motor power 11kw Discharge capacity 500L Feed capacity 800L Efficiency ≥30m³/h Rotating speed of stirring blade 35r/min Maximum particle size of bone particles 8mm/6mm Reducer model 350 
Size 2400*1000*1300mm Power 2.2KW Voltage 12V*4pcs Working hours 10 hours Operation Electro hydraulic Advantage Strong climbing ability、One button lifting、High stability 
Overall size 2300*1300*2200mm Power (kw) 3kw Speed 0.5M/s Stacker layer 3-4 layers Total weight 500KGS stacking method clamp handle stacking accuracy 5mm safety performance anti-pinch,anti-collision Pallet size Adjustment size 
Weighing Bucket Capacity（L） 1200L Storage Hopper Capacity（m³） (2-4)×3.5 Theoretical Productivity（m³/h） 56 Proportioning Accuracy ±2% Maximum Weighing Value（kg） 3000 Number Of Batching Species Two-four Feeding Height（M） 2.9 Feed Belt Speed（m/s） 1.25 Power（kw） (3-5)×3 Overall Weight（kg） 3500-5000 Outline Dimension（mm） (6100-12200)×2200×2680 
item value Material Flax fiber Enter type 4-Way Type pallets for block machine Raw Material fiber and flax Bending Strength more than 60N/mmˆ2 Flexural Modulus more than 4.5*10ˆ3Mpa Impact Strength more than 60KJ/mˆ2 Temperrater tolerance 80-100℃ Thickness 15-50 mm At customer’s request Width/Length At customer’s request
QT4-20 block machine adopts hydraulic and vibration forming, and the vibration force reaches 35.5kn. Combined with the high-precision mold of QT4-20 block machine, the concrete bricks produced are not only strong, dense, and smooth, but also have very small errors, which can meet the high standards of building houses. The compressive strength of the hollow concrete bricks produced by QT4-20 block machine reaches 10-15 MPa, and the compressive strength of the solid concrete bricks produced by QT4-20 block machine can reach 20-30 MPa, which can fully meet the compressive strength of the load-bearing walls of house buildings. The concrete pavement bricks produced by QT4-20 block machine have a compressive strength of 40-60 MPa, which can be used in the construction of urban sidewalks, parks and other facilities.
Among the raw materials for producing hollow concrete bricks by QT4-20 block machine, the first is cement, which accounts for 10% of the raw materials for hollow concrete bricks produced by QT4-20 block machine. Cement is the core raw material of hollow concrete bricks, which can bond other raw materials together to form a very stable concrete structure. The second is sand, which accounts for 50% of the raw materials for hollow concrete bricks produced by QT4-20 block machine. Sand is the raw material with the highest proportion of hollow concrete bricks, which plays the role of filling the hollow concrete brick structure and can improve the density and stability of hollow concrete bricks produced by QT4-20 block machine. Aggregates account for 35% of the raw materials for hollow concrete bricks produced by QT4-20 block machine. Aggregates are generally large in size and can form the overall framework of hollow concrete bricks, which can improve the overall compressive strength. Finally, water accounts for 5% of the raw materials for hollow concrete bricks produced by QT4-20 block machine. Water can react with cement to produce a hydration reaction, which can bond sand and aggregates to form, directly affecting the forming and quality of hollow concrete bricks.
Scientific maintenance plays a very important role in improving the strength of hollow concrete bricks and avoiding cracking. The most common maintenance method is natural maintenance. Place the hollow concrete bricks produced by QT4-20 block machine in a ventilated and cool place, avoid direct sunlight, and spray water 2-3 times a day for 3-5 days. If the local climate is very dry, the frequency of water spraying can be appropriately increased to avoid cracking.
The production cycle of QT4-20 block machine is 7-10 days. If the customer is in a hurry to ship, our production team can prioritize the order and expedite the production. The production process of QT4-20 block machine is first to cut and cut the Q235 thickened steel plate. HENRY uses a laser cutting machine to accurately cut the steel plate, and then performs argon arc welding, polishing and grinding on the frame of the QT4-20 block machine. Then install the motor, vibration platform, hydraulic system and other accessories of the QT4-20 block machine. Then paint the QT4-20 block machine, and the color can be customized according to customer needs. Finally, HENRY engineers test the QT4-20 block machine. After the test is completed, the QT4-20 block machine is produced.
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