SPR-ing Introduces a New Generation of Slip Rings for Precision Rotary Equipment
Shenzhen SPR-ing Technology Co., Ltd (SPR-ing), a Shenzhen-based manufacturer and exporter of rotary electrical connectors, has introduced its next-generation slip ring series engineered for precision rotary equipment, industrial automation and harsh-environment applications. The series covers miniature, high-speed, conductive, long-life and fiber optic slip ring families, giving design engineers a single qualified source for continuous power and signal transmission through a rotating interface.
Founded in 2019, SPR-ing operates with a team of 80 to 100 employees and exports 70% to 80% of its output to overseas markets. The new series reflects the company's investment in precision component manufacturing, in-house process control and application engineering support for OEM customers.
Core Technical Advantages
- Gold-to-gold contact system: high electrical and thermal conductivity, a low temperature coefficient of resistance, and strong resistance to vulcanization, oxidation, corrosive gases, fusion welding and arc erosion.
- Integrated pouring process: guarantees concentricity between the ring groove and the bearing of 0.01 mm or better.
- Mirror-surface machining: contact surfaces reach Ra0.02, delivering more reliable and repeatable contact performance.
- Precision component manufacturing: dimensional tolerances below 0.01 mm keep contact pressure stable across the full service life.
- Near-zero-pressure brush design and commissioning process: extends slip ring service life by approximately one third compared with conventional brush assemblies.
- Compact structure: reduced envelope dimensions help designers meet tight space constraints in robotic joints and camera gimbals.
- Stainless steel construction option: an integral 303 stainless steel housing supports deployment in extremely harsh environments.
Representative Specifications
| Parameter | Typical Value |
|---|
| Design circuits | 2 to 56 circuits (36 and 56 circuit models standard) |
| Rated voltage / current | 0-240 VDC / up to 2 A per circuit (5 A and 10 A combinations available) |
| Insulation resistance | 500 MΩ at 500 VDC |
| Dielectric strength | 250 VAC / 50 Hz / 60 s |
| Dynamic resistance variation | ≤10 mΩ |
| Rated speed | 0-250 rpm (high-speed models up to 500 rpm) |
| Working life | Up to 10 million revolutions |
| Operating temperature | -40 °C to +85 °C |
| Contact / housing material | Gold-gold contact / 303 stainless steel or aluminum |
| Protection grade | IP54 standard, higher ratings on request |
Typical Applications
- Industrial robots, rotary tables and automated assembly stations
- Medical imaging equipment and rotating patient positioning systems
- Security and broadcast PTZ cameras, gimbals and CCTV domes
- Wind turbine pitch control and test and measurement instrumentation
- Packaging, printing and textile machinery with continuous rotation
- Fiber optic rotary joints for high-bandwidth signal transmission
Ordering and Support
SPR-ing supplies the new slip ring series with a minimum order quantity of one piece, carton packaging, delivery in one to three weeks, and payment terms of L/C or T/T. Reference pricing for the stainless steel miniature range starts at USD 200 to 800 per unit depending on circuit count and configuration. Engineering samples, cable assembly customization and flange or housing modifications are available on request.
Overseas buyers can request a quotation, a technical datasheet or a sample evaluation by contacting the SPR-ing sales team directly.
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