Slip rings
Mercotac Versatac slip ring
Multi-channel liquid-metal slip ring range from 2 to 22 conductors at 20 A and 500 V, which Mercotac says runs at higher speeds than its larger multi-channel models.
Key specifications
| Circuits (max) | 22 |
|---|---|
| Current per circuit (max) | 20 A |
| Voltage (max) | 500 V |
Summarised in our own words from Mercotac, Inc.'s published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1 · Source 2
Notes on this data
Mercury-wetted (liquid metal) contacts: Mercotac states the connectors contain a small amount of elemental mercury and cannot be said to conform to RoHS; EU users must check exemptions and national rules. Speed, dimensions and full specification marked 'coming soon' on the page.
Specify Motion is not affiliated with Mercotac, Inc.. Mercotac and Versatac are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Mercotac part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 2 series from our supply network are the closest match on published figures.
High-circuit-count slip rings that carry hundreds of mixed power, digital, analogue, fibre and RF channels in one unit.
| Published maximum | Versatac | 多通道滑环 |
|---|---|---|
| Circuits | 22 | 500 meets or exceeds |
| Current per circuit | 20 A | 30 A meets or exceeds |
| Speed | — | 480 rpm |
| Voltage | 500 V | 700 V meets or exceeds |
| Bore | — | 40 mm |
Slip rings using heat-resistant materials for extreme temperatures from -55°C to +250°C, such as hot rollers and heating plant.
| Published maximum | Versatac | 高&低温滑环 |
|---|---|---|
| Circuits | 22 | 48 meets or exceeds |
| Current per circuit | 20 A | 50 A meets or exceeds |
| Voltage | 500 V | 500 V meets or exceeds |
| Bore | — | 88 mm |
这些数据是每个系列中发布的最高值，并非总是以相同方式测量的。较高的数据不一定是更好的选择：安装、工作周期、反馈、连接器和认证同样重要。工程师在推荐任何产品前，会检查其与您的应用是否匹配。
What a slip ring is
This group covers slip rings that do not fit a single standard format, including modular and split designs, contactless capacitive or optical data rings, temperature-rated units, quick-connect terminal designs, very high circuit counts and application-specific assemblies for wind turbines or packaging. All solve the same problem: transferring power, signals or data between stationary and rotating parts of a machine. What differs is the construction, which may be a split housing, a modular stack, a non-contact data path or a special material set.
When engineers choose a slip ring
Engineers look at these designs when a standard capsule, through-bore or pancake unit does not fit the job. Split rings suit retrofits onto existing shafts. Contactless data rings suit high data rates or long life without wear. Modular units allow circuit counts to change between machine variants. The trade-offs are cost, availability and, for custom designs, longer lead times and qualification. Match the construction to the real constraint, whether that is installation, data, temperature or circuit count.
How to specify the Mercotac Versatac
Send these with your enquiry and an engineer can confirm the right Versatac variant or an equivalent:
- What makes the application non-standard: installation, data, temperature, circuit count or format
- Circuits, current and voltage (A, V)
- Data protocols and rates
- Speed (rpm) and expected life (revolutions)
- Bore, envelope and mounting (mm)
- Temperature range (°C) and IP code
- Terminations, such as flying leads, connectors or quick-connect tabs
Common mistakes to avoid
- Choosing a special design when a standard type with minor changes would do
- Not stating the actual constraint, so the supplier offers the wrong format
- Assuming contactless data channels also carry power
- Underestimating lead time for custom or modular builds
Mercotac Versatac: frequently asked questions
What is the Mercotac Versatac?
Multi-channel liquid-metal slip ring range from 2 to 22 conductors at 20 A and 500 V, which Mercotac says runs at higher speeds than its larger multi-channel models. Published series figures include circuits 22, current per circuit 20 A, voltage 500 V. It is made by Mercotac, Inc.; Specify Motion can help source it or propose an equivalent.
Who makes the Mercotac Versatac?
The Mercotac Versatac is made by Mercotac (Mercotac, Inc.) and is listed here for engineers comparing options. Specify Motion is not affiliated with Mercotac, Inc.; brand names are used only to identify the product.
What is the circuits of the Mercotac Versatac?
The published series maximum circuits is 22. Individual models and sizes in the Versatac range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Mercotac Versatac?
Yes. On published figures, Multi-channel Slip Ring and High & Low Temperature Slip Ring are the closest match from our supply network. An engineer confirms the fit against your application before recommending anything.
什么是分体式滑环？
分体式滑环的转子和外壳分为两部分，可以套接到现有轴上而无需拆卸轴或其轴承。适用于改造和大型机器，其中拆卸成本高昂。与一体式装置相比，预计安装公差更紧，速度等级可能更低。
什么是无接触滑环？
无接触滑环通过电容耦合、感应耦合或光学耦合在不使用滑动接触的情况下跨旋转传输数据，有时也传输电源。数据路径上没有磨损，因此寿命长、支持极高的数据速率。无接触电源通常功率有限，因此许多设计将无接触数据通道与常规电源环相结合。
其他滑环系列
规格构建器
Specify what you need instead of Versatac
选择您需要的每一个零件，回答应用工程师会提出的问题，并在我们要求任何详细信息之前查看您的摘要。
- 1产品
- 2性能
- 3环境
- 4数量
- 5您的规格
工程师支持
让我们经验丰富的工程师为您做繁重的工作
Tell us how you use the Mercotac Versatac: the load, speed, duty and environment. Our engineers will confirm whether it is still the right part, find it for you, or propose an alternative that fits better.
- 由工程师审查，而非自动回复
- 类似的和更好的替代方案
- 标准、改进和定制选项
更喜欢配置它？ 使用规格构建器。