7.5 Ton Crawler Excavator

Our company specializes in manufacturing the full range of crawler excavator from 6T to 55T, with a complete product line covering all tonnage requirements. This series of crawler excavator features the following outstanding technical characteristics: The power system is equipped with Cummins or Yanmar brand engines, fully meeting the Euro V emission standards, ensuring strong power while achieving high efficiency and energy conservation. The hydraulic system adopts an advanced variable open design. The main hydraulic components are all imported high-quality products to ensure rapid system response and smooth operation. The overall structure of the machine adopts an innovative "H" -shaped fully rigid chassis design, combined with high-strength steel welding technology. Key components have undergone special heat treatment, significantly extending the service life of the equipment. In terms of intelligence, advanced functions such as remote control operation system, intelligent weighing system and slope control system can be optionally equipped. It is equipped with a standard quick connector, supporting the rapid replacement of various working attachments such as buckets, breakers and grabs, meeting diverse operation requirements. The crawler excavator material selection, equipment main body frame is made of high performance alloy steel plate, the yield strength of no less than 690 million mpa, tensile strength reached more than 790 million mpa. The key load-bearing components of the working device are made of special wear-resistant steel, with a hardness index exceeding the HB400 standard. After the track sections of the track system are precisely forged, the surface is strengthened by induction hardening process, and the final hardness is maintained within the range of HRC50-55. The manufacturing process includes the following key links: using industrial robots to complete automated welding operations and applying ultrasonic technology for weld quality inspection; The main structural components such as the large and small arms, etc. all need to undergo tempering heat treatment to optimize the material properties. The surface of the entire machine has undergone two coats of electrophoretic primer treatment, and its anti-corrosion performance meets the C4 grade standard. The assembly of key components adopts a hydraulic tensioning bolt system to ensure the precise control of the preload force.

Product Advantages

Hydraulic Cylinder Protection Sleeve

An additional protective sleeve is added outside the hydraulic cylinder, which has a telescopic function and can follow the extension and contraction of the cylinder for a long time without being easily damaged. Composite materials with certain toughness are adopted to resist the adhesion of crushed stones and sand to the oil cylinder, thereby reducing friction and extending the service life of the oil cylinder.

Valve And Pump

Valves and pumps are important components of crawler excavators. The maintenance cost may account for more than 30% of the total cost of the machine. We choose valves and pumps of top brands, which can effectively reduce energy loss. Safe and stable work. It also reduces the maintenance cost at the same time.

Walking Motor

The quality and after-sales service of the walking motor of the well-known Doosan brand are more reliable. It can provide powerful torque and power, enabling crawler hydraulic excavator to effectively handle heavy loads and challenging terrains. These high-performance motors enable hydraulic excavator to operate in harsh environments, such as construction sites or mining operations.

Air Filter

This crawler excavator is equipped with a dry air filter. The dry filter has a total of three filtration effects. They are respectively the first-level structural filtration; The second-level coarse filtration The third-level fine filtration. This structure can effectively separate impurities in the air, allowing pure air to enter the engine and thus protecting the engine's piston cylinder chamber from less wear. This will extend the service life of the engine.

Support Roller

The support roller of an excavator are used to support the weight of the hydraulic excavator and roll on the guide rails (rail chain links) or track surfaces of the tracks. They are also used to restrict the tracks to prevent lateral slippage. When the hydraulic excavator turns, the idler wheels force the tracks to slide on the ground. Moreover, our use of 11 support rollers can better achieve the transmission effect and be more durable.

Cab

The cab of this crawler excavator features a wide field of vision and spacious interior, ensuring driving safety and comfort. Having a wide-angle rearview mirror can effectively reduce blind spots in the field of vision. And the cab can be optionally equipped with a skylight to make the air fresher and more breathable. A protective net can also be added at the front end of the cab to effectively prevent splashing stones and sand from hitting the cab Windows.

Product Parameters

FAQS

Q: How is your quality of your crawler excavator?

A: We have our own production, cutting, welding, assembly and other assembly lines. There is a very high quality control link. And all the important accessories are selected from products of well-known brands. Therefore, our crawler excavators are of excellent quality and guaranteed.

Q: What about the crawler excavator spare parts?

A: We suggest you the crawler excavator spare parts list such as four sets for engine, filter, brake block and so on.

FAQS

Q: How is your quality of your crawler excavator?

A: We have our own production, cutting, welding, assembly and other assembly lines. There is a very high quality control link. And all the important accessories are selected from products of well-known brands. Therefore, our crawler excavators are of excellent quality and guaranteed.

Q: What about the crawler excavator spare parts?

A: We suggest you the crawler excavator spare parts list such as four sets for engine, filter, brake block and so on.