Kobelco's small excavators are well-received by users because of their excellent low fuel consumption and their ability to fully utilize their work capacity in limited spaces such as urban infrastructure and farmland development.
Among the small excavators built by Kobelco, two models that look like brothers are active in the domestic construction site, which are 6T SK60-8 and 7.5T SK75-8. The two models look only different in tonnage and size, but in fact the design of these two models is very different, and the applicable working conditions are naturally different. The following is specific to give you analysis and analysis!
First of all, the two can be distinguished from the appearance, the main difference is the position of the working device. The 6T boom is mounted directly in front of the cab, while the 7.5T is located above the track on the right side of the cab. In addition, the 6t track is also equipped with a bulldozing board as standard, and the 7.5T is equipped with an optional bulldozer. Specific to the cab, counterweight, size arm, etc. have subtle differences.
Kobelco Construction Machinery SK60-8 and SK75-8
At the same time, the SK60-8 and SK75-8 have different working conditions due to different development technologies.
The bucket capacity is different: 6T's SK60-8 bucket capacity is 0.22 square meters; 7.5T's SK75-8 bucket capacity is 0.4 square meters, which is about twice as high as the 6T bucket capacity.
Different working range:
Kobelco Construction Machinery SK60-8 and SK75-8 working range
Different design concepts:
Kobelco Construction Machinery SK60-8
The SK60-8 is designed to keep the radius of rotation to a minimum and is suitable for use in tight spaces. From the point of purchase price and ease of use, it is the first choice for small excavators. Equipped with a 120L large-capacity fuel tank, coupled with considerable fuel economy, it can achieve long-term continuous operation; optimized bulldozer surface design, improved angle and improved work efficiency.
Kobelco Construction Machinery SK60-8 cab
At the same time, with comfortable seats, flexible and easy-to-operate joysticks and a wide field of view, the operator will not be tired for a long time. In addition, the tail design is suitable for Chinese construction, the fuselage is more stable, and it is easier to carry out daily inspection and maintenance. The height of the cab from the ground is 2550mm, which is more conducive to the whole machine transportation.
Kobelco Construction Machinery SK75-8
The SK75-8 is designed to be equipped with a large-capacity bucket that is twice as large as a conventional 6T model while maintaining a compact body. Equipped with a new hydraulic system, PFR single pump fuel injection engine, and advanced ITCS control system, it can also be used in the face of complex working conditions; using long-life hydraulic oil, excellent durability of hydraulic oil filter, to the maximum extent Reduced the cost of use. The fuselage adopts a new hood structure, the battery and radiator are arranged on the left side, the engine is located at the center of the tail, and the main control valve is on the right side, which is easier for daily maintenance and maintenance.
Kobelco Construction Machinery SK75-8 cab
At the same time, it is equipped with the same cab as the large excavator. The all-round open working vision is conducive to better operation of the operator! It is also equipped with safety equipment in various emergency situations to ensure safe construction during operation.
In general, the 6T SK60-8 is suitable for non-loading operations in narrow spaces such as rural trenching, canal, urban greening and earthwork, and is convenient for transportation. The 7.5T SK75-8 has higher control accuracy and is suitable for small earthmoving operations in addition to the applicable conditions of the SK60-8.
Kobelco Construction Machinery has been committed to creating excavators for users with different working conditions and practical operation requirements. These two small excavators have also emerged. Their differences and styles make them different, whether it is in a small and arduous job site, or a large job site that needs to be loaded, no matter a novice or a familiar veteran, you can find the right model in the KOBELCO digging machine. !
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The internal structural design is vane, Vane Damper is more suitable for soft close. ABD vane dampers are used to dampen drives, control speed, and many other applications. The damping direction of the vane dampers with continuous rotation can be clockwise, counter clockwise, or in both directions. Vane dampers are widely used in automobile interior decoration, household electric appliances, furniture and bathroom products, etc. Our dampers can make the movement of structures soft, quiet and safe to mitigate the impact, avoid the damage, increase the mechanical life, reduce noise, and improve product quality.
When the axis of rotation is moving, the blades that are connected to the axis of rotation rotate at the same time. The silicone oil in the oil chamber is squeezed between the blade andthe body to the back of the blade. The resistance formed by the pressure of the silicone oil to the area of the blade is the damping torque of the rotating shaft and the blade. The torque generated during rotation is determined by the oil viscosity, the pressure area of the blade and the clearance between the blade and the body.
NOTE:
1. Please contact the corresponding product engineer for specific torque products.
2.The Standard of completion closing:the angle is 90° between Shaft A and Shaft B.
3.It is closing position to assemble the shaft into the housing.
4. Max. cycle rate: 3 cycles/min(Clockwise110 °, 110 ° anti-clockwise for 1 cycle)
5.Operating temperature:0~40℃
6.Storage temperature:-10~60℃
Soft closing time test: Measure the closing time from angle 70 to 0.
Rated Torque (T).
Test Temperature: 23±2℃.
Durability test:
Test Method: From the closing position to opening position, push back to 70°, soft close from 70° to 0°.
Rated Torque (T).
Operation Angle: 0°~110°.
Test Temperature: 23±2℃.
Durability test cycle: 50,000 cycles. The result of product test )>2s.
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