Month: October 2023

Generally speaking, the slip ring industry refers to the high and low temperature impact environment of outdoor high-altitude areas, humid and hot tropical areas, high salt fog and corrosion in the ocean, and sudden cooling and heating in outer space as extreme environments. When manufacturing slip rings for equipment used in extreme environments, special measures must be taken to ensure that the service life and performance of slip rings can meet the requirements for long-term operation in harsh environments.

In addition to the harsh external conditions that objectively exist in extreme natural environments, there are also special scenarios in industrial production that require the use of slip rings with special functions. For example, in high-temperature rollers used in certain industries, slip rings with a temperature resistance of over 100 ℃ are required.

In response to the market demand for slip rings that can with stand high temperatures above 100 ℃, JINPAT has invested a lot of resources in product development. During the product development process, several sets of high-temperature motors were scrapped due to testing the lifespan of high-temperature slip rings alone. JINPAT’s efforts in the field of high-temperature resistant slip rings have led its research and development at the forefront of international slip ring manufacturers.

However, in some industrial applications,slip rings face external conditions that are far more than just high temperatures. JINPAT has developed an integrated slip ring that can withstand high temperatures of 200 ℃, operate in a 140MPa high-pressure 201 methyl silicone oil   environment, and has high-definition video transmission capabilities. Its model is LPC-0303-HD01, and the rated working voltage of the power ring is 400VAC,with a current of 3A, Its high-definition video signal is transmitted using the RG179 coaxial line. This type of slip ring can operate in high pressure and high temperature environments and transmit high-definition video signals. Due to the difficulty of development technology, it is difficult for ordinary slip ring manufacturers to manufacture this type of product, but JINPAT has successfully developed it. Moreover, after large-scale delivery and use, this type of electric vehicle has withstood the test of long-term operation in extreme environments. According to customer feedback, the performance of JINPAT special slip ring LPC-0303-HD01 is very stable, which is once again recognized and praised by customers for its excellent quality.

Carbon brush slip rings are a type of slip ring, characterized by high current carrying capacity, high lifespan, and strong maintainability. In the product line of JINPAT, the vast majority of high current slip rings with a single path current transmission capacity of 50A or more will adopt a carbon brush type structure, such as JINPAT LPA series slip rings. In addition to the LPA series slip ring products, JINPAT also has other slip rings with a carbon brush structure, such as many LPS series slip rings and hollow shaft slip rings.

Unlike the LPA high current series slip rings, the current of the LPS series slip rings and hollow shaft slip rings is slightly smaller, with LPS450-0320-02S being a typical product. The slip ring stator does not use the standard LPS series slip ring brush wire, but instead uses carbon brushes. Due to the integration of power and thermocouple signal channels, the carbon brushes used are also different. The signal ring part uses silver graphite carbon brush slip rings with a silver content of over 50%, and the copper graphite carbon brush has a copper content of over 90%. It can be seen that the functions of the two carbon brushes are different, with silver graphite mostly used for transmitting signals, while copper graphite is used for transmitting power. For example, the LPS11-16S separation structure slip ring, which has 16 pulse signal pathways, all of which use silver graphite carbon brushes.

From the two products of the LPS series slip ring mentioned above, it can be seen that using silver graphite carbon brushes to transmit thermocouple signals and pulse signals is feasible, while transmitting other relatively simple digital or analog signals is also feasible.JINPAT has developed various types of silver graphite carbon brush signal slip ring models.

In addition to the signal and power slip   rings of the LPS series, JINPAT also has some hollow shaft slip rings that use carbon brush deconstruction. In addition to models above 50A, there are also many smaller current models. JINPAT LPT020-0316-02S is a typical hollow shaft carbon brush small current slip ring, which also uses copper graphite and silver graphite carbon brushes to meet the transmission requirements of signal and power, respectively. Unlike the LPS slip rings, which cannot provide effective protection against harsh external environments, this product adopts a fully enclosed structure with an IP64 protection level. Its designed working speed is 500rpm and its designed service life reaches 100 million revolutions.The reason why carbon brush structure is chosen for low current slip rings is because these products have a longer lifespan and support a series of characteristics such as higher rotational speeds. As an old brand slip ring manufacturer, JINPAT has rich manufacturing experience. If you have a demand for this type of slip ring, you can contact us for customization.

High current slip rings are rotating connectors that possess significant features in the field of electrical power transmission. Their primary characteristic is their outstanding current   carrying capacity. In the high current slip rings by JINPAT, each channel can handle an astonishing maximum current transmission capability of up to 4000A.This feature makes high current slip rings highly favored in numerous high-power applications, such as electric motors, generators, and various industrial equipment.

To achieve the transmission of such high currents, high current slip rings typically employ a carbon brush friction system. However, due to the need for different specifications of carbon brushes for various current requirements, high current slip rings are often customized according to specific demands, with no standard products readily available. This personalized design ensures the reliability and efficiency of high current transmission, and

JINPAT can offer customers a variety of solutions.

The second significant characteristic is that high current slip rings usually have a larger physical size. This is due to the use of an open-air structure to ensure effective heat dissipation. For some high current slip rings with multiple channels and high-rated voltages,their dimensions can be quite substantial. For instance, the model LPA000-09800-01PE-3020-04L designed by JINPAT for offshore floating cranes can have a volume of up to 5 cubic meters. Similarly, high current slip rings required for podded electric propulsion systems can also be extremely large,with some products having irregular shapes, resulting in an external packaging volume that may exceed 11 cubic meters.

The third significant characteristic is that the components of high current slip rings are relatively large. Besides needing sufficient space to accommodate the components for high-voltage products, these components themselves are typically of substantial size. For example, in a recent high current slip ring developed by JINPAT for podded electric propulsion systems, which integrates three 4000A current channels, the copper rings used inside the slip ring are over ten centimeters in height and have a diameter exceeding one meter to handle such massive currents. Combined with the dimensions of other components, this type of slip ring can have an overall volume exceeding an unprecedented ten cubic meters.

In summary, high current slip rings have become indispensable components in high-power, high-current applications due to their exceptionally large current carrying capacity, the use of large-scale components, enormous physical size, and significant weight. These characteristics enable them to play a crucial role in a range of industrial and commercial applications, whether driving giant electric motors or supporting heavy-duty industrial equipment, high current slip rings provide reliable solutions for high current requirements.

 

Medical devices serve as important indicators of the level of medical science and technology, and SDI signal slip rings are widely used as crucial core components in the production of high-tech products such as medical instruments and medical equipment. Currently, slip rings have become indispensable components in many medical devices.

As a pioneer among international slip ring manufacturers, JINPAT possesses the capability for large-scale production of various categories of SDI signal slip rings, including HD-SDI, 3G-SDI, 6G-SDI,and 12G-SDI, as well as their integrated products. Equipment used in narrow-space detection, machine vision, and other fields typically integrates high-resolution optical sensing systems, and in most cases, the SDI high-definition video signals generated by these systems are transmitted through coaxial cables. When these optical systems are integrated onto joints capable of 360° rotation, there is a need to install a high-definition video signal integrated slip ring assembly to maintain the SDI signal path.

Devices such as surgical robots, high-speed intravascular ultrasound scanners, magnetic resonance imaging, ophthalmic examination, and treatment instruments are all vital equipment within the medical field. As various highly advanced surgical robots with complex functionalities are gradually developed, slip rings specific to this field will also see comprehensive development. SDI high-definition video signal slip rings, as important components on robotic arms, are present in the visual systems of these medical robots. Robotic arms can rotate freely in 360 degrees without restrictions while requiring continuous power supply, making it necessary to have a component that can rotate freely and continuously for 360 degrees to ensure their proper operation, and the SDI signal slip ring precisely meets this requirement. JINPAT possesses extensive experience in the development of multi-signal integrated slip rings, enabling the transmission of various special signals within compact slip rings. The slip rings developed by JINPAT for the medical industry are primarily small-sized products, with most of them falling into the category of 30 channels or fewer LPC capsule slip rings, LPM full series slip rings, and some LPMS slip rings.

For example, the LPMS-12U-HD01-08S is an extremely compact 3G-SDI signal integrated slip ring with an outer diameter of 6.5mm and a length of 17.4mm. This slip ring is likely the smallest 3G-SDI signal integrated slip ring available in the global market. Of course, if customers have specific requirements, JINPAT can also develop a smaller SDI signal slip ring based on the 5.5mm diameter LPMS-08D. However, in most cases,medical SDI signal slip rings are developed based on LPM or LPC, as many medical instruments do not require extremely compact slip rings, and the size of the slip ring is not a critical factor under normal circumstances.

JINPAT, as an established international manufacturer of slip rings, supports customization of over 30 types of signal-specific slip rings for telecommunications. Among all the slip ring signals, Ethernet signals are the most widely applied. This is due to their high data transfer rates, and integrating Ethernet signals into slip rings does not significantly increase costs. Additionally, the rapid development of electromechanical integration has led to the widespread adoption of Ethernet signals in slip rings, surpassing other types of digital signals.

 

Ethernet signals are transmitted through Ethernet cables, which are composed of multiple pairs of twisted wires. When incorporated into slip rings, they involve multiple copper rings connected to wires through twisted pairs to achieve Ethernet connectivity. In certain specialized fields where slip rings are used, specific Ethernet cables may be designated for transmitting Ethernet signals. For example, a layer of metal shielding can be added between the twisted wire pairs and the outer sheath ofthe cable. Next, we will explore how Ethernet signals are handled in slip rings used in different sectors.

 

Taking the integrated Ethernet signal slip rings developed by JINPAT for the monitoring industry as an example, the primary products belong to the capsule medium-sized LPC and micro-sized LPMseries, with the number of channels ranging between 18 and 24. In slip rings used for monitoring equipment, the most common integration is for Fast Ethernet(100 Mbps) signals. For convenient installation and connection, specialized standard rubber housings are often used as Ethernet connection terminals,eliminating the need for soldering an RJ45 connector or an industrial Ethernet connector. This design makes the monitoring slip rings easily recognizable,with twisted pairs and various colored power lines inserted within a white rubber housing.

 

In industrial applications, slip rings usually utilize Category 5 or Category 6 Ethernet cables to transmit Ethernet signals. In most cases, these cables are terminated with RJ45 male or female connectors. In certain specialized machinery, stronger industrial Ethernet cable assemblies with enhanced tensile strength might be employed. When using industrial Ethernet cable assemblies, the cable connectors at both ends of the slip ring can be RJ connectors or connectors specifically designed for industrial Ethernet. Both types of slip rings with integrated Ethernet are quite common,and JINPAT releases dozens of new models almost every month.

 

Moreover, in some other specialized fields,slip rings with Ethernet pathways are also connected to dedicated aviation plugs to achieve rapid and efficient plug-and-play functionality.

The 2023 Shenzhen International Medical

Equipment Exhibition is held from August 29th to 31st at the Shenzhen International Convention and Exhibition Center. This exhibition comprehensively serves the entire medical equipment industry, covering the entire medical industry chain from source to end-users. The showcased product range includes medical electronics, medical imaging equipment, medical instruments, and products for various departments within hospitals, creating a specialized platform for procurement, cooperation, and communication among hospitals,suppliers, and agents.

 

Within medical devices, many systems require rotation while simultaneously transmitting power and other signals, and slip rings are one of their crucial components. For instance, CT systems and blood cell analysis systems require reliable transmission of high-powercurrents, communication signals, and image digital signals. This places high demands on the complexity and difficulty of slip ring technology. JINPAT is the sole provider of slip ring solutions focused on rotational transmission for medical devices in this exhibition. As an internationally renowned manufacturer in the field of slip rings, JINPAT is invited to participate and showcased arange of high-end medical slip ring products. The first day of the exhibition attracted industry experts, visiting clients, and technical exchanges.

 

As a professional manufacturer of slip rings,JINPAT has built on its extensive technical development and experience to successfully overcome technical challenges. They have developed a series of high-reliability dedicated slip rings for the medical industry. The featured products include the LPKS series and LPC-76/125 series slip rings, suitable for surgical robots, supporting high-speed signal transmission, high durability,and stable signal transmission; the LPFO fiber optic series and LPC series tailored for medical endoscopic diagnostic instruments; the LPC, SR, and LPHFseries slip rings with strong structural compatibility and adaptable to different medical shadowless lamp system requirements; the LPC-06/12/18/24/36and LPM-24/30 series slip rings, compact in size and suitable for medical extracorporeal diagnostic instruments; the LPT012 series and LPM-08 series adapted to various types of ophthalmic testing instrument installation spaces;the LPMS-04/06/12 and LPC-06/12/18 slip rings with ultra-small dimensions,suitable for beauty and therapeutic healthcare instruments; the LPPL gas-liquid electric integrated series slip rings, LPC-06/12/18, LPKS-04/06/08 slip rings for medical tower bridges that support multiple signal transmissions

 

JINPAT is committed to providing customers with high-quality and reliable medical slip ring solutions. In the upcoming exhibition, JINPAT will unveil and recommend its latest products and solutions in the medical field, showcasing more integrated, creative, and highly professional solutions.

Among all types of slip rings, the carbon brush slip ring is a rather unique type. As a professional manufacturer that entered the field of slip rings relatively early on the international stage, JINPAT has a history of producing carbon brush slip rings for nearly 20 years.

JINPAT primarily focuses on the LPA high-current slip ring series for carbon brush slip rings. Compared to slip rings that use wire brushes, using carbon brush products allows for the transmission of extremely high single-channel currents. Currently, JINPAT has delivered carbon brush slip rings with a maximum single-channel current of up to 4000A.Due to the use of larger carbon brushes instead of wire brushes and copperrings in the friction pair, these slip rings have a very long lifespan. Exceptfor some carbon brush pulse signal slip rings used at extremely high speeds,the majority of the products are installed on large equipment with very low operating speeds, resulting in a significantly long service life that often exceeds 10 years. For many carbon brush slip rings, if the wear on the copperring permits, replacing the carbon brushes can extend the product’s lifespan by many years. In contrast, slip rings that use wire brushes must be completely replaced when the brushes wear down to a certain extent due to the overall structural design. This showcases the strong maintainability of carbon brush slip rings, which is also a significant characteristic.

To observe the friction situation of the carbon brushes and monitor the operating status of the slip rings in real time,carbon brush slip rings generally feature observation windows. JINPAT offers two common design solutions for observation windows. One involves adding a small opening with a transparent acrylic plate on the side plate, while the other uses a large acrylic plate to replace the steel plate. However, for carbon brush slip rings with higher protection or explosion-proof ratings, even though the side plate is removable, it’s generally not recommended to disassemble it to observe the internal situation due to the presence of special filling material between the side plate and the housing. This is to prevent structural damage that could lead to a reduction in explosion-proof or protection ratings.

As a pioneering enterprise in the field of slip ring manufacturing, JINPAT provides comprehensive after-sales policies for its products. Regarding carbon brush slip rings, JINPAT offers lifetime after-sales services. Between 2014 and 2015, JINPAT produced several dozen units of slip rings like the LPA000-03600-02100-2110 model. Currently, the earliest batch of these products is undergoing major repair at the factory. Within the agreed-upon timeframe, JINPAT will perform tasks such as carbon brush replacement, structural component strength inspection, and cosmetic repairs on these modified products. The products will be returned to the customers after all performance tests are completed.

As a trailblazer in the realm of slip ring manufacturing with international renown, JINPAT holds an undeniable leading position. JINPAT has pioneered the integration of high-definition video signals into VR slip rings.With the continuous refinement of related industries, manufacturers of high-endgaming equipment and VR devices with integrated VR capabilities are emerging.This trend indicates a growing demand for slip rings that integrate high-definition video signals for future VR devices and high-end gamingequipment.

Presently, slip rings integrating HDMI or DP signals are primarily applied in high-end VR devices and gaming equipment. On the other hand, SDI high-definition video signals find more use in equipment within the realm of film and television production. Worth mentioning is that JINPAT has successfully developed slip rings capable of accommodating 12G-SDI high-definition signals. Concerning DP and HDMI high-definition video signal slip rings developed for VR, they support both DP1.1 and HDMI2.0 versions of high-definition signals, with efforts underway to develop slip rings for even higher versions of high-definition signals.

Existing head-mounted virtual reality displays utilize a wiring approach directly connected to PCs, televisions, or other multimedia devices.During usage, limitations on rotation angles due to cable twisting and similar issues unavoidably compromise the experience. In order to ensure uninterrupted data transmission during 360° high-speed rotation and maintain data integrity and transmission speed, JINPAT has developed a range of integrated VR slip rings that combine HDMI, USB, direct current power, and signal amplification.The high-definition video transmission capability of these VR slip rings can reach up to 2160X1080P@90HZ, providing error-free signals. Furthermore, the design ensures no interference between high-definition and USB signals, thus guaranteeing lossless signal transmission. This solution empowers users to achieve unrestricted 360° rotation while using head-mounted virtual reality displays, significantly enhancing the user experience.

From the perspective of application terminals, SDI slip rings are primarily used for high-definition video signal transmission in productivity equipment, while slip rings integrating DP and HDMI signals are predominantly installed in various consumer-grade devices, thus falling under the category of consumer-grade high-definition slip rings. Whether employed in productivity equipment as SDI high-definition video signal slip rings or in consumer-gradedevices as DP and HDMI high-definition video signal slip rings, JINPAT consistently maintains a leading position in the industry. Customers are welcome to inquire about customized slip ring solutions, as JINPAT is committed to providing satisfactory solutions through its robust technical capabilities.