3-ton miniature hydraulic crawler excavator-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.

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

The chemical energy of the diesel oil is converted into mechanical energy by the diesel engine, the mechanical energy is converted into hydraulic energy by the hydraulic plunger pump, and the hydraulic energy is distributed to each actuator (hydraulic cylinder, rotary motor + reducer, walking motor + reducer) through the hydraulic system, and then the hydraulic energy is converted into mechanical energy by each actuator. Realize the movement of the working device, the rotation of the rotating platform and the walking movement of the whole machine.1.

The hydraulic system where the output flow of the main pump is a fixed value is a quantitative hydraulic system; On the contrary, the flow of the main pump can be changed by adjusting the system is called a variable system. In the quantitative system, each actuator works according to the fixed flow provided by the oil pump without overflow, and the power of the oil pump is determined according to the fixed flow and the maximum working pressure.

The 2 ton mini excavator is a flexible and efficient construction equipment designed for narrow construction sites and small projects, suitable for municipal engineering, garden construction, agriculture, road maintenance and other application scenarios.

What to pay attention to when using a mini excavator? Let's take a look.1. When used in the field, the brakes need to be properly adjusted. If the road is low and uneven, release the accelerator pedal forward, brake for speed, and then slide the inertia slowly into the air. 2. When going through muddy sections, use rough propulsion to prevent tires from slipping due to excessive speed and avoid moving or stopping along the way. 3. If there is an obstacle ahead, we will avoid it. If this is unavoidable, you need to slow down at low speeds.

The original excavator was manual, and it has been about 140 years from its invention to 2018, during which it has experienced the gradual development process from steam-driven bucket rotary excavators to electric and internal combustion engine driven rotary excavators, and fully automatic hydraulic excavators with mechatronic hydraulic integration technology. The first hydraulic excavator was successfully invented by the Poclin factory in France. Due to the application of hydraulic technology, in the 1940s, there was a hydraulic backhoe mounted on the tractor.

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.

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.