Product overviewCompact DHK005 series through-hole slip ring with a 5 mm inner bore designed for rotating electromechanical systems requiring a central passage ≤ 5 mm. Gold-plated rings and precious-metal multi-point brushes provide low contact resistance and minimal friction. Supports combined signal and power transmission; circuits, current and voltage are configurable based on standard models. Housing options include engineering plastics, aluminum alloy or stainless steel. Typical outer diameter for DHK005-12: 30 mm. Standard per-circuit current example: 2 A; up to 12 circuits configurable.
Product features- Precious-metal multi-point brush contact for stable low-resistance connection
- Compact integrated through-hole design for straightforward installation
- Configurable from 1 to 12 circuits (standard 2 A per circuit)
- Standard protection IP51, configurable to IP68
- Supports mixed signal types and common data protocols
- Maintenance-free operation
Typical applicationsSuitable for winding machines, laser scanners, in-pipe cameras, exhibition/display equipment, vending machines, CCD inspection systems, intelligent vision systems, automated assembly machines, rotating LED lighting, labeling machines, laboratory and biological testing instruments, or any device requiring 360° rotation for power or signal transfer.
Product naming description (scheme)· Product type: DH — electric slip ring
· Installation method: K — through hole
· Through-hole bore: 5 mm for DHK005 models
· Example total circuits: 12 (DHK005-12)
· Rated current options: 2 A / 5 A / 10 A / 15 A / 20 A (as specified)
· Identification suffix: -XXX may be added to distinguish variants (e.g., DHK080-24-002)
Technical specifications- Series/model: DHK005 (mini inner-hole series)
- Circuits: customizable, typically 1–12 (DHK005-12 = 12)
- Inner bore: 5 mm
- Typical outer diameter (DHK005-12): 30 mm
- Rated current options: 2 A, 5 A, 10 A, 15 A, 20 A
- Rated voltage: 0–240 VAC/VDC
- Operating speed: typical 0–600 rpm (general 0–200 rpm; industrial up to 300–1000 rpm depending on grade)
- Operational life: ~20 million revolutions (general) to ~60 million (industrial)
- Operating temperature: -40°C to +65°C
- Operating humidity: ≤ 70%
- Protection level: standard IP54 (customizable to IP68)
- Insulation resistance: ≥ 1000 MΩ @ 500 VDC
- Dielectric strength: 1500 VAC @ 50 Hz, 60 s
- Contact material: gold-plated precious metal
- Dynamic contact resistance variation: ≤ 10 mΩ
- Housing: engineering plastics standard; aluminum alloy or stainless steel optional
- Lead type/length: colored Teflon leads; typical 500 mm ± 20 mm
- Mounting: integrated through-hole for easy installation