The most popular fully automatic hydraulic QT4-15 block making machine in China
The QT4-15 block making machine in China has attracted increasing attention from manufacturers and builders worldwide due to its advantages, such as significantly increased production efficiency, stable output, reliable products, and low operating costs. The QT4-15 concrete block making machine in china production line is fully automated, controlled by a PLC intelligent control box. This includes material batching, transporting concrete raw materials, vibration molding, and finally stacking concrete bricks. The entire brick factory requires only 4-5 workers. The QT4-15 cement block making machine in China can produce 8,000 400*200*200mm hollow concrete bricks per day, equivalent to the combined output of four semi-automatic production lines. This significantly reduces labor costs and solves the problems of large workforces and management difficulties in brick factories.
Advantages and selling points of the QT4-15 block making machine in china
The QT4-15 block making machine in China, with its advanced production technology, produces concrete bricks of superior quality, high strength, uniform density, and precise dimensions, with an accuracy controllable within 0.3mm. Its extremely low defect rate fully meets the requirements of high-standard projects. The QT4-15 block making machine price in China employs advanced servo vibration technology, reducing energy consumption by 20% compared to traditional brick-making machines. Therefore, the QT4-15 block making machine for sale in China produces higher quality concrete bricks, consumes less electricity during production, and has lower labor costs, significantly reducing production costs and greatly increasing brick factory profits.
The QT4-15 block making machine in China has overall dimensions of 3650*1560*2400mm, weighs 4000kgs, has a total power of 22.2kw, a vibration force of 55-70kN, and a production cycle of 12-20 seconds. The QT4-15 block making machine in China requires 960*550mm and 1010*550mm fiber pallets, a JS500 mixer, and an 8m long belt conveyor machine. Customers can choose the color of the QT4-15 concrete block making machine manufacturers in China. We also provide a free set of molds and a one-year warranty.
Multi-functionality and green production are also key advantages of the QT4-15 block making machine in China. The QT4-15 isn’t limited to producing only one type of brick; by changing the molds, it can produce various sizes of hollow concrete bricks, including 8-inch, 6-inch, and 4-inch bricks, as well as solid bricks, colored paving bricks, kerbstones, and other types. The QT4-15 concrete block making machine in China also boasts a powerful solid waste processing capability, turning waste into treasure. It can use fly ash, solid construction waste, and slag as raw materials, promoting low-carbon production, energy conservation, and emission reduction, lowering production costs, and increasing brick factory profits. Furthermore, in many countries, factories achieving green and low-carbon production often receive subsidies and tax breaks from local governments.
Technical Data
- Tab1
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| Machine size | 3650×1560×2400mm |
| Weight | 4000KG |
| Power voltage | 400V/380V/220V AC |
| Pallet size | 960*550mm,1010*550mm |
| Mixer model | JS500 |
| Power of host machine | 22.2KW |
| Forming period | 12-20S |
| Vibration force | 55-70KN |
| Worker | 4-5 Worker |
| Block mould | One set for free |
| Belt conveyor machine | 8 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 | QT4-15 block making machine in China |
| Warranty of core components | 1 year |
| Applicable industries | Building Material Shops, Construction works |
QT4-15 block making machine in China production capacity:
The advantages of QT4-15 fully automatic hydraulic block making machine in china production line
01.PLC intelligent electrical control box
The PLC intelligent electrical control box controls the production process through a program set by our engineers, down to the precise production steps and timing. This ensures that every hydraulic action, vibration frequency, and vibration time runs perfectly, enabling the QT4-15 block making machine in China to produce concrete bricks in an automated, high-standard, and fast-paced manner. The emergence of PLC intelligent electrical control boxes marks the transition of the concrete block making machine in China from manual mode to the era of automation and intelligence.
02.Solenoid valve
During the production of concrete bricks, the QT4-15 block making machine in China uses a PLC intelligent control box to issue action commands. Upon receiving these signals, the solenoid valves control each production step by changing the flow and pressure of the hydraulic oil, including hydraulic actions such as plate feeding, material feeding, pressing, and demolding. The solenoid valves equipped in the QT4-15 cement block making machine in China are of excellent performance, with a fast response time (millisecond-level), long lifespan, high quality, and resistance to high temperatures, water, and dust.
03.Hydraulic tube
The function of hydraulic hoses is to transport hydraulic oil to each hydraulic cylinder, realizing the transmission of hydraulic force and the control of hydraulic actions. Working in conjunction with the PLC control box and solenoid valves, they complete each hydraulic action. The hydraulic hoses equipped in the QT4-15 block making machine in China are resistant to high temperature and pressure, have good flexibility, and feature steel wire winding in the inner rubber layer for strong pulse resistance. They also have sealed interfaces to prevent oil leakage. The hydraulic hoses are the “lifeline” ensuring the safe and efficient operation of the QT4-15 blocks making machine price in China.
04.Block Machine Steel Plate
The QT4-15 block making machine in China is made of high-quality, thickened Q345B steel plate, with key parts using cast steel components, resulting in extremely high overall machine strength. This robust machine body ensures a long service life and resists the impact of vibration systems, guaranteeing that the QT4-15 concrete block making machine in China will not deform or crack even after prolonged use, with a service life of 10-15 years.
05.Block making machine hollow block mould
As a key component of the QT4-15 block-making machine in China, the mold determines the shape and size of the produced concrete bricks, ensuring the precise molding of the QT4-15 bricks. Various mold types are available, including hollow bricks, perforated bricks, paving bricks, and curb stones. The QT4-15 block making machine in China molds are made of special steel materials with extremely high wear resistance. Through heat treatment and wire cutting processes, their strength is increased by 2-3 times compared to ordinary molds, reaching HRC55-60.
06.Vibration motor
The vibrating motor uses high-frequency vibration to keep the concrete raw materials in a rapid flow state, expelling air and quickly and evenly filling the mold, increasing density. This ensures that the concrete bricks produced by the QT4-15 concrete block making machine in China have high density, a short molding cycle, high strength, no cracking, and good durability. The total vibration force of the QT4-15 block making machine in China reaches 55-70kN, with multiple vibrating motors driving synchronously, resulting in concentrated energy and high efficiency.
07.Hydraulic cylinder
The hydraulic cylinder is the final actuator in the hydraulic system of the QT4-15 block making machine in China. It converts the pressure energy of hydraulic oil into mechanical energy, thereby realizing hydraulic actions such as feeding, pressing, and demolding. This ensures the high-speed operation of the QT4-15 concrete block making machine in the China production line and plays a crucial role in the molding quality of concrete bricks. The hydraulic cylinders equipped in the QT4-15 cement block making machine in China are stable in operation, have a long service life, and have no risk of cylinder explosion.
Advantages of the QT4-15 block making machine in china
Simple project sections and block laying buildings
- Gallery
- Data Shete
Concrete block samples for clients to choose (6)
Size: length 400* width 100 *height 200 mm
7 pieces per mold
1680 pieces per hour
13440 pieces per 8 hours
Size: length 500* width 150 *height 200 mm
5 pieces per mould
1200 pieces per hour
9600 pieces per 8 hours
Size: length 400* width 200 *height 200 mm
4 pieces per mould
960 pieces per hour
7680 pieces per 8 hours
Size: length 225* width 112.5 *height 60 mm
14 pieces per mould
3360 pieces per hour
26880 pieces per 8 hours
Size: length 200* width 100 *height 60 mm
14 pieces per mould
3360 pieces per hour
26880 pieces per 8 hours
Size: length 200* width 163*height 60 mm
8 pieces per mould
1920 pieces per hour
15360 pieces per 8 hours
The QT4-15 block making machine in China tests all kinds of concrete block for customers
- QT4-15 hydraulic hollow concrete block forming machine block making machine in china
- Look ! How strong a concrete hollow block is ! Made by QT4-15 concrete block making machine in china
- QT4-15 hydraulic automatic cement block making machine in china test cement blocks for Malawi buyer
- How to inspect hydraulic curbstone block making machine in china compression?It make a solid rock not a only brick
When purchasing a QT4-15 block making machine in china, how should customers choose the appropriate mold?
Customers can research the local construction market and select the most popular brick types. Alternatively, they can tell our sales team which country or region they are from, and our team will recommend molds based on the most commonly used brick types in the area. We can also design mold drawings according to customer needs.
Realistic scene of Henry block making machine operation
Necessary equipments for QT4-15 Automatic block making machine in china complete production line (8)
Cement silo for cement storage and supplying cement to batching plant
Cement storage silo parameters:
Production capacity : 100 tons Tank diameter : 3 meter Vertebral height： 2.5m tank height 8m Landing leg 1.96m( Customized) discharging height 1.96m Clean type YCD-2 Tank thickness Aboved 4mm, middle 5mm, below 6mm Assembly method assembled and detachable 
The cement screw machine is for transferring cement to the batching machine
Screw conveyor machine parameters :
Overall size : 8000*219*500mm Weight 250kgs rated power 3 kw Diameter (mm)： 219 mm Wall thickness(mm)： 6mm Handling Capacity (m3/h)： 20m3/h Conveyor way Spiral Connection way Flange 
Concrete batching machine is for weighing and batching different size of gravel and stone powder
PLD1200 batching machine data:
Overall size : 7500×2200×2500mm Weight 4500kgs rated power 8.8 kw Total hopper capacity： 1200L Storage hopper capacity： 3*2.5m3 Production capacity: 56m3/h Height of Adding Material： 2.8m Belt speed： 1.25m/s Product name PLD1200 batching plant machine 
JS500 concrete mixer is for mix cement, sand, stone dust , gravel, and aggregate together for block materials
JS500 Mixer Parameters data :
Mixing motor power 18.5kw Boost motor power 5.5kw Pump motor power 0.55kw Discharge capacity 500L Feed capacity 800L Efficiency ≥28m³/h Rotating speed of stirring blade 23r/min Hopper lifting speed 18m/min Maximum particle size of bone particles 10mm/8mm Discharge height 1.8-4.5m 
The belt conveyor is for conveying mixed material from mixer to a block machine hopper
The belt conveyor parameters :
Weight: 250 kgs Overall size: 8000*700*500mm Motor power ： 2.2 kw Belt type: “V” type complete Conveyor speed: 1.2 m / second Stories double steel material angle iron Assembly method detachable Belt material Rubber belt wire 
Cement scale is for scale cement quantity then transfer cement to batching machine
Cement scale parameters:
Volume of weighing hopper : 0.4m3 Batching precision: ±1％ Maxmum scale powder material： 500kgs Graduation value 2kg,5 kg, 10kg number of sensor 4,6,8 sensor type pressure sensor display model digital display, tensile sensor interface model RS232, RS485 Protection level IP67/IP65 
The double pallet stacking machine is for palletizing and stacking blocks to be more stories.
Double stacking machine parameters:
Overall size： 2500*1770*2400 mm: Power (KW)： 3KW Speed 0.5M/S Stacker layer 3-4 layers Total weight： 1500KGS stacking method clamp handle stacking accuracy 5mm safety performance anti-pinch, anti-collision Pallet size Adjustment size 
3 tones diesel engine forklift for carrying bricks out
3 tons forklift parameters:
Tyre style solid tyre Mast lifting maximum height 3000mm Fast driving speed 18/19km per hour Overall length 2700*1225*2700mm Fork size 1070*122*45mm Applicable industrials logistic transport Engine type wei chai brand Loading capacity 1000-3000 kgs Weight 4300kgs
First, check the hydraulic lines and electrical wiring of the QT4-15 block making machine in China for damage, and ensure the bolts on the molds, vibrating motor, etc., are tight. Second, check the lubrication level of the hydraulic cylinders and bearings of the QT4-15 concrete block making machine in China; fill the oil tank to two-thirds full. Then check for mold wear and foreign objects in the mold box. Next, turn on the QT4-15 cement block making machine in China in manual mode and sequentially execute actions such as plate feeding, material feeding, vibration molding, demolding, and stacking, checking if each production step is normal. Finally, check the quality of the produced concrete bricks. If everything is normal, automated production can be started.
In general, the entire inspection process follows four standards:
1. Each production action is executed flawlessly.
2. Hydraulic pressure is stable, and oil temperature is normal.
3. The produced concrete bricks are dimensionally accurate and of acceptable quality.
4. There are no leaks in the hydraulic lines and cylinders.
In cold winter weather, especially below freezing, the QT4-15 block making machine in China needs to be fully preheated before starting. Run the machine unloaded and wait for the hydraulic oil temperature to rise to around 25°C. Antifreeze can also be added to the hydraulic oil. Secondly, regarding concrete raw materials, since they contain a certain proportion of water, it’s essential to check if they are frozen. If necessary, warm water can be used. After the QT4-15 block making machine for sale in China produces concrete bricks, promptly clean the molds, material carts, hoppers, and mixer to remove any concrete residue to prevent freezing. Manufacturers such as qingdao hf machinery co ltd, shengya machinery, and qingdao machinery share similar views.
When producing concrete bricks with the QT4-15 block making machine in China in the high temperatures of summer, the most important thing to pay attention to is “heat protection and cooling.” First, a sunshade should be erected to prevent the QT4-15 concrete block making machine in China from being exposed to direct sunlight. Second, pay attention to the temperature of the hydraulic oil; if the hydraulic oil temperature exceeds 70℃, the cooling system should be checked immediately. Finally, regarding the curing of the produced concrete bricks, ensure they are shaded to prevent rapid moisture evaporation caused by direct sunlight, and increase the frequency of watering appropriately. Manufacturers such as shandong shengya machinery co ltd, hf machinery group, and shengya cement block making machine all have similar precautions.
The moisture content of concrete raw materials is a crucial factor in ensuring the quality of concrete bricks produced by the QT4-15 block making machine in China. A classic and simple method for judging the moisture content of concrete is the “clump test.” A worker holds the concrete raw material in their hand, squeezes it tightly into a ball, and then releases their hand. If the concrete raw material retains its ball shape and doesn’t crumble, and is then dropped from a height of 1.5 meters to the ground, and the ball breaks into several pieces instead of shattering, this indicates that the moisture content of the concrete raw material is just right.
First, run the QT4-15 block making machine in China for a period of time to allow the hydraulic oil temperature to reach 40-50℃. This allows contaminants in the hydraulic oil to be evenly distributed. Then, clean the sampling port and take about 200 ml of hydraulic oil into a clean, transparent glass. Send this glass to a professional testing institution for analysis.
Alternatively, you can make a rough judgment by observation. If the hydraulic oil is transparent and light yellow, it indicates that the hydraulic oil is in good condition. If the hydraulic oil is cloudy, black, has an odor, has sediment at the bottom, or has increased viscosity, it needs to be replaced immediately.
The answer is yes. The vibratory motor powers the vibration system of the QT4-15 block making machine in China. Given the high-frequency vibration and dusty working environment, it requires specialized maintenance. First, it’s crucial to check daily for loose mounting bolts on the vibratory motor, as loose bolts are the most common cause of motor malfunctions. Second, check the protective cover of the vibratory motor for damage and ensure the junction box is sealed to prevent concrete materials and dust from entering. Finally, observe the vibratory motor for any abnormal noises during operation. If any abnormal noises are heard, the machine should be stopped immediately for inspection.
Scientific curing determines the strength and durability of concrete bricks. For concrete bricks produced by the QT4-15 concrete block making machine in China, the first seven days after molding are a critical period for curing. Suitable temperature and humidity conditions must be provided, and exposure to direct sunlight and rain should be avoided. After 28 days of curing, the concrete bricks reach their maximum strength.
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