OEM HITACHI EX100 120-5 SWING DEVICE SLEW BOX GEAR SUN 1 (OEM HI 3069727) | Tonkee®

OEM HITACHI EX100 120-5 SWING DEVICE SLEW BOX GEAR SUN 1 (OEM HI 3069727) | Tonkee®

HITACHI EX100 120-5 SWING DEVICE SLEW BOX GEAR SUN 1 (OEM HI 3069727) | Tonkee®
The design of the gear sun 1 is carefully engineered to ensure smooth and efficient rotation. It consists of a central hub with gear teeth that mesh with other components in the swing system, such as the planetary gears. This meshing of gears is what allows the upper structure of the excavator to rotate in response to the operator's commands.
HITACHI EX100 120-5 SWING, DEVICE SLEW BOX GEAR SUN 1 (OEM HI 3069727) | Tonkee®

The swing device slew box gear sun 1, as part of the excavator's swing system, plays a pivotal role in the machine's ability to rotate its upper structure.


This component is a key element in enabling the excavator's 360-degree rotation, which is vital for precise digging, material handling, and maneuvering on construction sites.

The design of the gear sun 1 is carefully engineered to ensure smooth and efficient rotation. It consists of a central hub with gear teeth that mesh with other components in the swing system, such as the planetary gears. This meshing of gears is what allows the upper structure of the excavator to rotate in response to the operator's commands.

Durability is a critical requirement for heavy machinery components like the gear sun 1. It is typically manufactured using high-quality materials that can withstand the demanding conditions of construction and excavation work. Materials like hardened steel are often used due to their excellent strength and wear resistance properties. This ensures that the gear sun 1 can withstand the significant forces and stresses it experiences during operation.

Furthermore, these materials are often heat-treated and precision-machined to ensure they meet strict tolerances and quality standards. This enhances the component's longevity and reliability, reducing the need for frequent replacements and maintenance.

The swing system, of which the gear sun 1 is a crucial part, is responsible for the excavator's ability to rotate its upper structure.


This rotation is vital for various tasks, including:

Accurate Digging: The ability to rotate 360 degrees allows the excavator operator to precisely position the bucket or attachment for digging, ensuring efficient excavation and minimizing the need for repositioning.

Efficient Material Handling: When handling materials, such as loading trucks or placing objects in specific locations, the excavator's ability to swing its upper structure is essential for reaching different areas without moving the entire machine.

Improved Maneuverability: The excavator's ability to rotate makes it highly maneuverable, which is crucial when working in tight spaces or navigating around obstacles on a construction site.

Enhanced Productivity: Overall, the gear sun 1 contributes significantly to the excavator's productivity. Its smooth and reliable operation ensures that the machine can perform its tasks efficiently and effectively.
DEVICE SLEW BOX GEAR SUN 1 (OEM HI 3069727) | Tonkee® HITACHI EX100 120-5 SWING
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