Compact 12mm through-hole slip ring, 35mm OD, 6 circuits 5A/240V, gold-to-gold contact, Ideal for automation & CCTV. Custom available.
Our 12mm through-hole slip ring (model: DHK012-6-5A) delivers reliable power and signal transmission in a highly compact 35mm OD housing. With 6 independent circuits rated at 0–5A and 0–240V, gold-to-gold contacts, and robust copper alloy rings, this rotary joint is engineered for demanding industrial automation, packaging machinery, CCTV platforms, and test equipment.
! Key Features
- Space-Saving Design: 12mm inner bore and 35mm outer diameter — easily integrates with shafts, air lines, or concentric assemblies.
- Stable Electrical Performance: 6 circuits, each supporting 0–5A and 0–240V AC/DC with ultra-low, stable contact resistance (Static <0.005Ω, Dynamic <0.01Ω).
- Premium Contact System: Gold-to-gold contact material ensures minimal electrical noise, no maintenance, and extended service life over standard carbon brushes.
- High-Grade Conductive Rings: Copper alloy base with precious metal plating (Ag≥1um, Ra<0.4 surface finish) for superior conductivity and corrosion resistance.
- Rugged Operating Range: Continuous rotation at up to 250 rpm and reliable operation in temperatures from -30°C to 80°C.
- Safety & Insulation: 500MΩ@500VDC insulation resistance (ring-to-ring, ring-to-housing); 500V@50Hz dielectric strength, no breakdown for 60s.
- IP51 Protection: Basic protection against solid objects >50mm and vertical dripping water. Designed for indoor industrial use; not fully waterproof or dustproof.
Technical Specifications
| Parameter | Specification |
|---|---|
| Inner Bore (Hole Size) | 12 mm |
| Outer Diameter | 35 mm |
| Number of Circuits | 6 rings |
| Current Rating | 0–5A per ring |
| Voltage Rating | 0–240V AC/DC (Working voltage 220VAC) |
| Contact Material | Gold-to-Gold |
| Ring Material | Copper alloy + precious metal plating (Ag≥1um, Ra<0.4) |
| Contact Resistance Variation | Static <0.005Ω, Dynamic <0.01Ω |
| Insulation Resistance | 500MΩ @500VDC (25°±5, RH<85%) |
| Dielectric Strength | 500V@50Hz, 60s no breakdown (25°±5, RH<85%) |
| Operating Temperature | -30°C ~ +80°C |
| Rotating Speed | Up to 250 rpm |
| Protection Class | IP51 |
Typical Applications
Customization & OEM Service
We support full customization on this 12mm slip ring series: different circuit counts (2–72), mixed power + signal (Ethernet, USB, encoder, thermocouple), higher speed (up to 3000 rpm), higher IP rating (IP65/IP67), and special cable lengths or connectors. Send us your drawing or requirements — our engineering team will respond within 24 hours.
Why Choose Us
- ✓ 12-month warranty on all slip rings
- ✓ Strict quality control with 100% electrical testing before shipment
- ✓ Fast lead time: 3–7 days for standard, 7–15 days for custom
- ✓ MOQ: 1 piece — sample orders welcome
- ✓ Technical drawings (PDF/DWG/STEP) provided upon request
Get a Quote
Looking for a reliable 12mm through-hole slip ring for your equipment? Contact us today with your specifications. We’ll provide a competitive quote and technical support to ensure the perfect fit for your application.
