The DSTI ES-L Series (Economy / Light-Duty) Capsule Electrical Slip Rings, engineered and manufactured by Dynamic Sealing Technologies, Inc. (DSTI - USA), offer automation builders a high-value, cost-effective rotary connection solution designed to reliably transfer electrical power, low-voltage control circuits, and analog/digital data across continuous 360-degree rotating mechanical interfaces.

The "-L" designation denotes an optimized value-engineered configuration specifically tailored for light-duty industrial applications where operational speeds do not exceed 100 RPM and system voltages remain within 120V AC/DC. The ES-L line spans from 6 to 56 independent circuits, divided into two primary form factors:
1. Sub-Miniature Family (ES6A-L, ES12A-L): Features an ultra-compact outer body diameter of only 0.50" [12.7 mm] with a 0.95" [24.13 mm] mounting flange. Perfectly sized for severely confined envelopes such as miniature pan-tilt security cameras, optical tracking gimbals, medical endoscopes, and agile robotic fingertips.
2. Standard Compact Family (ES6-L, ES12-L, ES18-L, ES24-L, ES36-L, ES56-L): Utilizes a standard outer body diameter of 0.87" to 1.00" paired with a 1.75" [44.45 mm] mounting flange, offering high circuit densities across 6, 12, 18, 24, 36, and 56 channels. This group features standardized mounting geometry engineered to integrate coaxially through the center bore of DSTI fluid rotary unions (GP, LT, and SE Series).

Key Engineering Features & Operational Advantages:
- Gold-on-Gold Contact Metallurgy: Despite its cost-effective positioning, DSTI retains its premium multi-finger gold alloy brushes running on precision gold-plated rotor tracks. This prevents contact oxidation, reduces abrasive wear, and guarantees stable contact resistance across millions of continuous operating cycles.
- Ultra-Low Electrical Noise (≤ 60 Milliohms): Delivers pristine signal fidelity without wave distortion or packet loss, making it fully compatible with analog sensor inputs (0-10V, 4-20mA, thermocouples, strain gauges) and non-Ethernet digital serial communications up to 50 Mbps.
- High-Grade Silver-Plated Copper Leads (28 AWG): Comes pre-wired with 48-inch [1,219 mm] flying leads constructed of stranded silver-plated copper with color-coded insulation compliant with international wiring standards for foolproof installation.
- Low Rotational Drag Torque: Balanced brush preload paired with dual miniature precision ball bearings produces negligible breakaway and running torque, eliminating drive motor strain and minimizing mechanical heating.
- Environmental Ingress Protection: Fitted with internal splash seals safeguarding sensitive contacts against ambient dust, particulate infiltration, and light condensation. An optional external IP65 enclosure is available for severe industrial washdown environments.

Typical Industrial Applications:
- Light industrial robotic wrists, collaborative robot (Cobot) end-effectors, and educational robotics.
- Commercial PTZ security surveillance camera domes, gimbal platforms, and scanning radars.
- Low-speed rotary indexing tables, semiconductor test handling apparatus, and cleanroom test fixtures.
- Packaging carousels, stretch-wrapping turntables, textile winding machines, and automated cable reeling drums.

• Manufacturer: DSTI (Dynamic Sealing Technologies, Inc.)
• Origin / Country of Manufacture: USA
• Product Line: ES-L Series Economy Capsule Electrical Slip Rings
• Models Covered & Circuit Configurations:
  - ES6A-L: 6 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 0.47" [11.94 mm]
  - ES6-L: 6 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 1.102" [28.00 mm]
  - ES12A-L: 12 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 0.59" [14.99 mm]
  - ES12-L: 12 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 0.75" [19.05 mm]
  - ES18-L: 18 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 1.02" [25.91 mm]
  - ES24-L: 24 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 1.29" [32.77 mm]
  - ES36-L: 36 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 2.06" [52.32 mm]
  - ES56-L: 56 Circuits | 2A/Circuit | 120V AC/DC | Capsule Length: 2.96" [75.30 mm]
• Continuous Current Rating: 2 Amps per circuit
• Maximum Voltage Rating: 120V AC/DC
• Maximum Rotational Speed: 100 RPM
• Maximum Data Speed: Under 50 Mbps (Non-Ethernet, Analog and Digital signals)
• Maximum Electrical Noise: ≤ 60 Milliohms (mΩ) at rated operational speed
• Contact Metallurgy: High-Purity Gold-on-Gold contacts
• Lead Wire Material: Flexible stranded Silver-Plated Copper, color-coded
• Lead Wire Gauge: 28 AWG
• Standard Lead Wire Length: 48 inches [1,219 mm] on both rotor and stator ends
• Internal Bearings: Dual pre-lubricated high-precision miniature ball bearings
• Ingress Protection: Internal splash seals for dust/moisture resistance; optional external IP65 enclosure available
• Operating Temperature Range: -40°C to +80°C [-40°F to +176°F]
• Mechanical Mounting: Flanged capsule housing with pre-drilled bolt pattern; direct coaxial integration compatible with DSTI GP, LT, and SE fluid rotary unions.