Mini 3.5ton 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.

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 working scenarios of a mini excavator can always be changed, but we have different precautions for different working scenarios.First of all, we have a small hydraulic excavator specialized in tunnel work. As this mini excavator is more suitable for tunnels, due to its overall structure is simple, and relatively can be layered tunneling situation, the safety performance of this mini excavator is also very high.Therefore, our mini excavator can be applied to the tunnel work raft, but it should be noted that the whole device of this mini excavator is like.

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.

Fast shipment of mini excavator to GermanyAnother batch of freshly baked mini excavators/minibagger are shipped today! Thank you for your support, we will continue to provide the best quality service. We are looking forward to the safe arrival of the mini excavators/minibagger, which will bring you surprise and satisfaction!AWEIYA machinery - Mini excavator

Small mini excavator bypass valve failure today to analyze the small excavator central bypass valve failure.1. Boom lift, bucket low-speed digging and unloading, the central bypass valve is stuck in the open position, the oil output of the main pump to return to the hydraulic oil tank, the boom rise and bucket work circuit is not accessible, remove the central bypass line shaft for cleaning.2.

Many people may look at the maintenance of the core components such as the engine when using a mini excavator, but few people will notice the importance of the oil-water separator.

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 working scenarios of mini excavators can always change, but we have different precautions for different working scenarios.First, we have a small hydraulic excavator specialized in tunnel work. Since this kind of small excavator is more suitable for tunnels, because its overall structure is simple and it can relatively carry out tunnel conditions in layers, the safety performance of this small excavator is also very high.Therefore, our small excavator can be applied to the working raft of tunnels, but it should be noted that the overall device of this small excavator is like.