Excavators are among the most widely used construction machines and are designed for continuous 360-degree rotation between the upper structure and the undercarriage. During operation, stable transmission of power and electrical signals is essential, and slip rings play a critical role in ensuring reliable performance under such rotating conditions.
As a key component of infrastructure development, excavator demand often reflects the overall strength of a country’s construction industry. According to industry data from March 2023, excavator sales in China reached 49,408 units, setting a new historical record. Despite ongoing global economic challenges, the market continues to demonstrate confidence in long-term infrastructure investment, placing higher requirements on the reliability and durability of core components such as slip rings.
As a professional manufacturer specializing in slip ring technology, JINPAT Electronics has long focused on the development of high-performance slip rings for construction machinery. JINPAT’s excavator slip ring series incorporates multiple proprietary technologies and is designed to deliver excellent stability, long service life, and reliable performance in harsh operating environments.
From a structural perspective, JINPAT excavator slip rings are mainly divided into two categories:
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Through-bore slip rings, represented by models LPTS120-0230-16S and LPT200-0430-0210-06S, which are suitable for installations requiring a central bore for hydraulic pipes, shafts, or other mechanical components.
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Non-through-bore slip rings, including LPTS000-0602, LPTS000-0330-1105, and LPTS000-0350-1605, designed for applications with compact structures or limited installation space.
These models belong to JINPAT’s customized hollow shaft slip ring series and can be tailored to meet specific excavator system requirements.
In terms of external design, LPTS000-0602 features a standard cylindrical housing with axial lead wires on both the stator and rotor sides. In contrast, LPTS000-0330-1105 and LPTS000-0350-1605 adopt a semi-enclosed metal housing, with the stator lead outlet positioned at the center of the housing. This configuration results in a right-angle cable orientation between the stator and rotor, allowing for more flexible cable routing in complex machine layouts.
Internally, JINPAT excavator slip rings utilize automotive-grade wires and are capable of transmitting multiple signal types, including throttle signals, CAN bus signals, angle sensors, and encoder signals. This multi-signal integration supports the increasing level of electronic control found in modern excavators.
The internal structure also incorporates proprietary technologies developed specifically for construction machinery applications, offering excellent resistance to vibration and mechanical shock. Combined with high-quality materials, strict quality control, and a highly standardized manufacturing process, JINPAT excavator slip rings maintain consistent performance during long-term operation. Under typical working conditions, the rotational accuracy of the excavator system can be maintained within ±2°, significantly enhancing overall machine stability and reliability.
With extensive experience in heavy-duty slip ring design and customization, JINPAT continues to provide dependable slip ring solutions for excavators and other construction machinery, supporting stable operation in demanding industrial environments.