Crawler digger-manufacture,factory,supplier from China

The original excavator is manual, from the invention to the present has been more than 130 years, during which it has experienced the gradual development process from steam driven bucket rotary excavator to electric drive and internal combustion engine driven rotary excavator, the application of electromechanical hydraulic integration technology fully automatic hydraulic excavator. In 1951, the first fully hydraulic backhoe was introduced at the Poclain plant in France by Case, a pioneer in crawler and wheeled excavators.

I. BrandAt present, there are hundreds of factories producing small excavators in the market, and if there are brands that can be called up, there are 34 brands according to my personal statistics; But among these brands, how can we choose the brand we like? Each brand has its own production philosophy and target customer groups. The brand also represents the owner's taste, cultivation and style of doing things, etc.

With the increasing demand for construction machinery and equipment, there are more and more types of excavators, and the market volume is also increasing year by year. According to the operation characteristics of excavators, Dezhong machinery classifies excavators, and briefly introduces their respective characteristics.Excavator Category 1 According to the different size, excavators can be divided into large excavators, medium-sized excavators and small excavators.

The working principle of excavators can be divided into two aspects, namely mechanical drive and hydraulic control. Mechanical drive is driven by the engine to drive the transmission chain, drive the mechanical arm, bucket rod and bucket to complete the excavation and loading operations; Hydraulic control is to drive the oil circuit through the hydraulic pump to control the movement mode and action of the mechanical arm and bucket, making the operation of the excavator more accurate and efficient. In terms of mechanical drive, the core component of excavator work is hydraulic engine.

The excavator consists of a main engine and a working device... The main engine provides power and basic movements (walking and turning), and the working device completes different operating movements... The main engine includes a walking device, a rotating mechanism, a hydraulic system, a pneumatic system, an electrical system and a power plant.1. The excavator device is the support part of the whole machine, which bears the total weight and the reaction force of the working device, while realizing the excavator with a short distance.

Technical parameters:- Weight of the whole machine: about 2 tons- Power system: diesel engine, power 12-15 kilo watts- Maximum digging depth: 2.5-3 meters- Maximum digging radius: 3.5-4 meters- Maximum digging height: 3.2-3.5 meters- Travel speed: 1.5-2.5 kilometers/hour- Climbing capacity: 30°.- Bucket capacity: 0.05-0.10 cubic meters- Hydraulic system pressure: 16-20Mpa- Fuel tank capacity: 30-50 liters- Track width: 200-250mmApplicable scenes:- Municipal engineering: sewer trench excavation, road repair and other operations.- Landscaping: tree transplanting, flower bed leveling, soil excava

Operating weight: One of the three main parameters of the excavator refers to the total weight of the excavator with standard working equipment, driver and full fuel. The operating weight determines the level of the excavator and also determines the upper limit of the excavator's digging force.  2.

The excavator is first of all a kind of machinery, the original intention of the mechanical design is to improve work efficiency, the excavator is no exception, all machinery is the transmission of force, the excavator is different from the common mechanical equipment is that it is not the same way of transmission, he is to use hydraulic oil to transmit force.

In the excavator according to the driving mode, according to different walking mode, according to different transmission mode, according to the classification of use, the structure of the excavator and the common structure of the relevant knowledge mining.Excavator structureanalysis: excavator is composed of bucket, bucket column, rotary arm, foot or support wheel and hydraulic system. The barrel and barrel are hinged with the column, which is hinged at the end of the rotating arm.

A hydraulic excavator is a type of construction machinery commonly used for excavating earth, clearing silt, excavating rivers and mines, excavating buildings and infrastructure, and other earthmoving works.