For medium and large projects, we have concrete batching plant and asphalt manufacturing plant. Twin shaft concrete mixer is usually the mixing host of the concrete batching plant. For high grade concrete like uhpc, planetary concrete mixer is chosen for this purpose. For small projects, another economic choice is concrete mixer and pump.

1. Four Main Construction Equipment for Your
Project
Abstract: For medium and large projects, we have concrete batching plant and
asphalt manufacturing plant. Twin shaft concrete mixer is usually the mixing host of
the concrete batching plant. For high grade concrete like uhpc, planetary concrete
mixer is chosen for this purpose. For small projects, another economic choice is
concrete mixer and pump.
In today's concrete industry, the construction form of on-site pouring is generally
adopted, and the ready-mixed concrete is transported to the project site by a concrete
mixer truck. The concrete needs to be produced in large quantities through automated
production methods. The complete set of concrete production equipment is concrete
batching plant, including mixing systems, batching systems, control systems,
metering systems, and conveying systems.
Another way is to factory prefabrication to produce cement products according to the
drawing requirements, and then transport them to the site for installation according to
specific needs, including prefabricated pipe racks, pipe piles, and cement PC
prefabricated products. In the field of cement prefabricated product production, the
quality of concrete in precast concrete production directly affects the product
performance of precast components. The key factor that determines the quality of
precast concrete is the selection of the concrete mixer. Therefore, which one is better
for the prefabricated concrete product making, planetary concrete mixer for sale or
twin shaft concrete mixer?

2. Planetary concrete mixer advantages
The vertical shaft planetary concrete mixer adopts planetary mixing motion. Its mixing
track spreads all over the mixing drum, so that the material is mixed more evenly and
the mixing movement is more intense. For high prefabricated cement products, it can
better meet the quality requirements.
Compared with the twin-shaft mixer, since the mold of the prefabricated component is
directly arranged under the concrete mixer, there is no secondary mixing link in the
transportation of concrete mixer truck, so the homogeneity standard of the primary
mixing is required to be higher.

3. Only by improving the homogeneity of primary mixing can the scrap rate of finished
prefabricated components be reduced and the high quality of finished products for
customers can be achieved. Therefore, planetary concrete mixer is more suitable for
precast concrete than the twin horizontal shaft mixer.
Secondly, considering the operating cost, the planetary concrete mixer mixing device
adopts a parallelogram design structure. When the mixing is worn to a certain extent,
it can rotate 180 degrees and continue to be used repeatedly. The mixer reduces the
customer's accessory cost. The special designed mixing arm can maximize the
utilization of the blades. The streamlined design of the mixing arm reduces the chance
of material sticking to the arm. Therefore, for prefabricated cement products,
planetary mixer is a good choice.
Twin shaft concrete mixer
Traditional concrete production adopts concrete production line, generally choosing
double shaft concrete mixer. It is suitable for mixing large quantities of commercial
concrete, featuring high production efficiency, energy saving and environmental
protection, mature technology, certain price advantages and technology
accumulation.
Generally speaking, the concrete batching plant with twin shaft mixer as the mixing
host is usually HZS concrete mixing plant The model that uses the vertical shaft
planetary mixer as the main mixing machine is the HZN series concrete mixing plant
equipment. Therefore, different businesses can choose suitable special concrete
mixing plants according to the concrete production needs, which can not only take
into account the production cost but also achieve the purpose of ensuring product
quality.

4. The models of double shaft concrete mixer are JS500, JS750, JS1000, JS1500,
JS2000, JS3000, JS4000, etc., which are ideal concrete mixing machinery at home
and abroad. They can work independently or as the main machine of the mixing
station.
Its performance characteristics are introduced as follows:
1. The innovative design concept of the dual shaft concrete mixer better solves the
problem of the sticky shaft of the mixing powder in the self-falling mixer, improves the
mixing efficiency, reduces the mixing load, and increases the product reliability of the
mixer.
2. Concrete slump can be monitored and changed at any time, providing guarantee
for users to produce high-quality concrete.
3. Several sets of mixing blades in the circular groove-shaped mixing drum are
staggered, so that the mixture can be fully stirred in the cylinder, and the mixture can
be stirred quickly and evenly.

5. 4. Multiple shaft end seals, aggregate frame seals and hydraulic system oil supply
pumps can effectively prevent the main shaft from being quickly worn and resulting in
slurry leakage.
5. Whether it is feeding, unloading or water supply, the mixer is highly automated, and
all motor control parts are in the electric box, which is safe and reliable in use.
The working principle of double shaft concrete mixer:
The mixing drum is in the shape of two connected troughs, and there are two
horizontally arranged stirring shafts inside. When the stirring shaft rotates, on the one
hand, the mixture at the bottom and the middle of the mixing drum is turned upwards,
and on the other hand,the mixture is pushed back and forth along the axis
respectively so that the mixture can be stirred quickly and evenly, thus having a good
stirring effect.
The mobile ready mix concrete plant can conveniently and quickly produce fresh
ready-mixed concrete on the construction site, which eliminates the risk of changes in
the performance of the concrete during long-distance transportation. And the mobile
RMC plant is easy to disassemble and assemble, and hardly requires welding
operations, which makes it possible to transfer from one construction site to another
quickly.
The disadvantage of the mobile concrete mixing plant is that its compact structure
makes it difficult to repair or maintain. Limited by the mobile characteristics, the
volume of the aggregate bin of the batching machine is limited, and it needs to
maintain a high feeding frequency during work. In addition, its conveyor belt is difficult
to maintain the optimal transmission angle.

6. Due to its compact and modular design, the installation time of the mobile mixing plant
is shorter than that of the stationary concrete batching plant, which is especially
suitable for concrete production under difficult conditions in a short period of time. It
should be noted that the portable concrete plant also needs some ground hardening
to ensure its stable operation.
According to the working principle of ordinary concrete mixing plant equipment, the
mobile mixing plant has a unique and ingenious structural design for the equipment,
which has a weighing system, mixing system, conveying system, control system and
material storage on a trailer.
The performance of the mobile mixing plant
The mobile concrete mixing plant adopts JS twin shaft concrete mixer, PLD batching
machine and is equipped with an automatic control system. The control room and
console can control the whole production process.
It can achieve better mixing for dry, semi-dry, plastic and various concrete. It also

7. features accurate and reliable weighing, even mixing, convenient transportation, easy
operation, convenient demolition, and reliable operation. Whether it is a mobile mixing
plant such as a highway, bridge, seaport, hydropower project, etc., it can be used.
With its special overall design, except for the cement silo and screw conveyor, other
equipment can be directly operated on the trailer. Each disassembly and assembly
requires only 30 tons of lifting equipment and can be quickly installed successfully.
During installation, only the road surface is flat and firm, and no foundation is needed,
so it can be put into production quickly after arriving at the site.
The models of the mini ready mix concrete plant is YHZS25 and YHZS35, of which
the hourly output is 25 m3 and 35 m3 respectively. Other large models are YZHS50,
YHZS60 and YHZS75 concrete plant.
The concrete mix and pump is a small concrete delivery pump that adopts a fully
automated construction operating system and integrates feeding, mixing and
high-pressure pumping. It features simple operation, stable performance and
convenient movement.
The performance of a small concrete mixer pump is mainly determined by its
configuration. The higher the configuration, the better the performance. At present,
the best performance of the small trailer pump is the diesel concrete pump trailer. The
full hydraulic system is matched with diesel engine power, which perfectly avoids the
limitation of electric power. It is widely used in foundations, floor, township road
construction, mines, road and railway tunnels, water conservancy and hydropower
project, slop protection.

8. Work flow
Remotely lift the hopper to put the concrete material into the mixer, and the mixer will
automatically mix and add water. The relay for adding water can be adjusted in
advance, and it can be modified and adjusted according to the concrete material. In
general, before the concrete pump leaves the factory, Haomei Machinery has
adjusted the general initial value.
When working, the hydraulic pump is driven by the motor, and the hydraulic pump
drives the hydraulic cylinder to push the piston in the delivery cylinder to perform
alternate movements of "one push and one suction", and the concrete is sucked into
the delivery cylinder from the hopper and pumped out. The process is controlled by
hydraulic valves and switched by swing cylinders in the distribution system. Since the
whole process of the concrete mixing pump is controlled by remote control. One
person can complete all operations.
After the construction of concrete mixing pump is completed, all the concrete in the
hopper and pipeline should be output, and then the pump, hopper, pipeline, etc.
should be flushed, otherwise it will easily cause pipe blockage. The main operations
are:
1. The pistons on both sides of the mixing pump should be turned to the position of

9. the cleaning room, and lubricated.
2. The concrete mixer and pump machine should run for several minutes without load,
so that clean grease can be distributed to each lubrication point.
3. The control switches, adjustment handles, handwheels, control rods, cocks, etc. of
each part of the mixing pump should be reset.
4. When cleaning the pipeline with the water pump, it must be carried out in strict
accordance with the operation manual of the concrete mixer and pump for sale.
5. It is strictly forbidden to stand people within 10m in front of the outlet of the pipeline,
and use metal mesh baskets to collect the washed out cleaning balls and sand.
6. Clean the concrete remaining on the inner wall of the mixing drum. If you need to
enter the mixing drum for cleaning, you should cut off the power supply, remove the
fuse and lock the switch box.
7. If the concrete mixing pump needs to be moved, the sliding valve stem must be
retracted and the ball valve closed to prevent damage to the valve stem.
In the construction of asphalt pavement, the asphalt plant equipment is the key
equipment to ensure the construction quality and improve the efficiency, and it is a
very critical part of the pavement construction process.
The hot mix asphalt plant s mainly composed of batching system, drying system,
combustion system, hot material lifting, vibrating screen, hot material storage bin,
weighing and mixing system, asphalt supply system, powder material supply system,
dust removal system, finished product silo and control system, etc.

10. Cutting the production cost of asphalt mixture should start from the batching and
drying stage. This includes precise dosing of aggregates and bitumen, and reduced
fuel consumption by achieving optimum combustion and maximizing heat exchange
between combustion gases and aggregates.
Unreasonable ratio of asphalt mixture
The mixing ratio of asphalt mixture is the target mixing ratio and the production mixing
ratio. The target mix ratio controls the conveying ratio of sand and gravel cold material.
The production mix ratio is the mixing ratio of various sand and gravel in the finished
asphalt product specified in the design. The production mix ratio is determined by the
laboratory, which directly determines the grade standard of the finished material.
In order to further ensure the production mix ratio and set the target mix ratio, the
production can be adjusted appropriately according to the actual situation. When the

11. target mixing ratio or production mixing ratio is inappropriate, the stone materials
stored in each metering of the mixing station are out of proportion, affecting the
asphalt mixture output.
The high moisture content of sand and stone
The production capacity of the drying drum of the asphalt mixing plant matches the
equipment model. When the water content of sand and gravel is too high, the drying
capacity will decrease, and the quantity of sand and gravel supplied to the metering
warehouse to reach the set temperature per unit time will be low.
Low combustion value
Asphalt manufacturing plants have certain requirements for fuel, generally iesel,
heavy diesel or heavy oil. During the construction process, some production
enterprises burn mixed oil with low combustion value and low heat, which seriously
affects the heating capacity of the drying cylinder.
Asphalt concrete production requires mobility, and the use of small mobile asphalt
manufacturing plant greatly reduces the cost of work. Haomei mobile asphalt batching
plant has a production capacity of up to 80 tons per hour, which is sufficient to meet
the needs of small-scale projects and can be directly operated on the construction site
and relocated with the project.