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mosque speaker uses an acoustic horn to increase the overall efficiency of the driver unit. The main advantage of horn loudspeakers is they are more efficient; they can typically produce 10 times (10 dB) more sound power than a cone speaker from a given amplifier output. Therefore horns are widely used in public address systems, megaphones, and sound systems for large venues like theaters, auditoriums, and sports stadiums.

DSPPA horn speaker with built in amplifier cover a large scale of power outputs from 2W to 1000W. They are made of different materials and different shapes. Most of DSPPA horn speakers are designed waterproof for outdoor use.

It is an ideal choice for industrial and commercial applications in hotel, school, office and factory where background music and paging is needed.

By developing creative products during the past years. as pa system manufacturers, DSPPA has promoted the technologies of the fields like Professional Audio, Public Address and Conference System both in and abroad. DSPPA leads the orientation of Public Address development and will raise the PA technology to a higher level.

In line with the strongly increasing requirements of the building industry, the demands placed on the equipment used on large-scale construction sites are rapid increasing.  TRUEMAX stationary concrete pump 80.16.110E is a powerful highly resistant machine used for high rise applications and long distance pumping. The structure is impressive thanks to its high conveyance output despite working smoothly and with very little wear. In the other hand, it mainly includes 6 systems: power, hydraulic, running, cooling, lubricating and mechanical.

 The concrete pump hahigh-quality electrical motor in power system, is consistent in powerful, economical and eco-friendly. Furthermore, our main electronic component applied world-class brand, strength in quality. The SP80.16.110E adopting electrical engine power source, it is mainly used for concrete transportation. It adopts electricity as its main power. This module is a medium sized machine which is very popular in the construction market.  The stationary pump is not only economy but also provides concrete distributors, machines, spare parts and services made for a comprehensive, one stop solution.

Features of Trailer Mounted Boom Concrete Pump  

1. Stationary concrete pump 80.16.110E using a structure with double open hydraulic circuit structure, it contains two pumps with great volume displacement and separately in working style, make the performance more efficient.

2. We are using world-famous brands in our main electronic and hydraulic components system which guaranteed the quality for our customers.

 Our new design and fine material extend the life of the wearing parts.

3. SP80.16.110E adopts the high-quality electrical motor as the power source, which is more powerful, economical and reliable.

4. The reliable system extends wearing parts working life.

5. Through the electrical cabinet, we can convenient for seeking and solving the problem.

6. The hopper-adopting technology of side-wall filming, in order to improve the hopper cavity, and suitable for a variety of concrete.

7. Piston pullback design technology makes easier to change piston and maintain it.

Light-thin integrated design, concise APP cloud control, stable performance, easy maintenance.

Not only a mobile screen, but also an interactive new media.

The weakness of outdoor advertising media market combined with government remediation forces a lot of traditional outdoor advertising forms (such as big billboard, cabinet, wall advertising, etc.) quickly to stay out of the market.

Without attaching to the public buildings and public facilities, truck mounted led screen gets rid of space restraint, becoming the best outdoor advertising new media.

YDEA is committed to providing customers with the best led display control for the professional companies.

What is concrete mixer truck

Concrete mixer truck is a special truck used to transport concrete for construction; it is often referred to as a snail car because of its shape. A cylindrical mixer drum is mounted on this type of truck to carry the mixed concrete. The mixing drum is always rotated during transportation to ensure that the concrete being conveyed does not solidify. After the concrete is transported, the inside of the mixing drum is usually washed with water to prevent the hardened concrete from occupying space and making the volume of the mixing drum less and less.

Concrete mixer trucks structural principle

Structural principle of new concrete mixer truck: Concrete mixer truck consists of special equipment for automobile chassis and concrete mixing and transportation. The chassis of concrete mixer trucks produced in China mostly adopts the second-class universal chassis provided by the whole vehicle manufacturer. Its special mechanism mainly includes power take-off, front and rear brackets of the mixing drum, reducer, hydraulic system, mixing drum, operating mechanism, cleaning system and so on. 

Concrete mixer trucks woking principle

The working principle is that the power of the automobile chassis is taken out by the force taking device, and the variable pump of the hydraulic system is driven, the mechanical energy is converted into the hydraulic energy and transmitted to the quantitative motor, and the motor drives the speed reducer, and the stirring device drives the stirring device to carry out the concrete. Stir. Another type of mixer truck produced by Yantai Shenglida adopts a patent of the rotary seal, which can completely close the mixer drum and the inlet and outlet, and specifically solve the water evaporation and mortar stratification of traditional products. The series of problems such as dredging and driving safety has greatly improved the quality of concrete and building safety, and the effective volume of the mixing drum has increased to over 80%. The comprehensive performance of the whole vehicle has reached a new height. The fully enclosed mixer truck has Started to serve the Qingyan Weirong high-speed rail and high-quality construction projects.

The concrete mixer truck is used as a transportation vehicle. In terms of maintenance and repair, the maintenance and repair system of “regular inspection, mandatory maintenance, and condition-based repair” must be carried out in accordance with the regulations of the Ministry of Communications No. 13 of 1990. Under this premise, combined with the actual situation of the concrete mixer truck, maintenance and repair should be.