RF-250 22mm Brush Carbon Motor 1500rpm-13000rpm High Speed Mute Motor For Smoke

Product Specification

RF-250 22mm Brush Carbon Motor 1500rpm-13000rpm High Speed Mute Motor For Smoke Vents

RF-250 Metal Brush Motor DC Technical Parameters

• Motor Name/Type:RF-250SH-13320 Mini motor
• Rated Voltage: 12.0VDC
• Staring Voltage:1.5V
• Operating Volt:11v-13V
• Rated Load Torque:60g.cm
• No-load Current: 55mA max
• No-load Speed: 5400±540r/min
• Rated Load Speed:3500±350r/min
• Rated Load Current:420mA
• At Maximum Efficiency Speed: 4548r/min
• At Maximum Current:0.152A max
• At Maximum Torque:2.688mN.m
• At Maximum Output: 1.19 w
• At Maximum Efficiency:65.5%
• Stall Current: 0.796A 
• Stall Torque:16.77mNm
• At Maximum Power Output
  • Output:2.218w
  • Torque:8.385mN.m
  • Speed:2913rpm
  • Current:0.38A
• Body Size: 30.5mm x 22mm (L*D)
• Shaft Size: 2mm diameter
• Weight: 38 grams
• Operating Temperature: -20°C ~ +70°C
• Storage Temperature Range:-30°C ~ +80°C
• Direction of Rotation:CCW

RK-250 High Speed Brush Carbon Motor Dimension

RK-250 Micro Motor Dimension Information
1.Motor Shell Size:22mm Diameter*30.5 Length (Length without output shaft length)
2.Front Step Diameter:6mm
3.Front Step Height:1.5mm
4.Output Shaft Length:20mm/6mm/9mm/10mm or Custom 
5.Terminal Distance:15.2mm
6.Mounting Screw Holes Distance:14mm
7.Screw Holes Size:2*0.4mm

8.Terminal Height:2.5mm

9.Notes
   1. Usable machine screw | ength 1. 0max. from motor mounting surface.
   2. Allowable torque for screwing of tapped hole:2. 5kgf-cm max.
   3. No remarkable scraches on dents on the surface.
   4. Tolerances not otherw ise specified decimal:土0.3mm.

 

RK-250 DC Motor 22mm Mini Motor TN Curve

RF-250 DC Motor: The Optimal Drive Solution for Emergency Smoke Ventilation Systems

Key Technical Specifications

• Brand: HCS Motor/Lihua Motors

• Type: Brushed DC Motor 

• Certification: ISO9001/CE/Rohs /Reach

• Customization: Available

• Rated Power: 5W

• Voltage Range: 6.0V~28.0V (12V constant voltage recommended)

• Speed: 5000 RPM (rated), 7500 RPM (max)

• Torque: 0.006 Nm (rated), 306 g-cm (stall)

• Efficiency: 80% (peak efficiency at 7321 RPM, 0.47A, 4.83 g-cm)

• Response Time: ≤2S braking

• Dimensions: Ø22mm × 30.5mm

• Weight: 60g

• Insulation Class: F

Why RF-250 Excels in Smoke Ventilation?

1. Instant Emergency Activation

   • Achieves full speed in seconds, ensuring rapid window opening for smoke extraction.

   • High stall torque (306 g-cm) overcomes initial resistance in window mechanisms.

2. Robust Design for Critical Environments

   • Wide voltage tolerance (6V–28V) guarantees operation during voltage fluctuations.

   • Class F insulation withstands high temperatures in fire scenarios.

3. Smart System Integration

   • Compatible with fire alarm interfaces for automated triggering.

   • Low standby current (0.47A at peak efficiency) reduces energy waste.

4. Compact & Lightweight

   • Minimal space requirements (22mm diameter) for retrofit installations.

   • Aluminum housing enhances heat dissipation in continuous duty cycles.

Typical Applications

• Industrial: Factory skylights, warehouse vents

• Commercial: Shopping mall atriums, office building smoke shafts

• Public Spaces: Hospitals, stadiums, subway stations

• High-Rise Buildings: Complies with international smoke control standards

Performance Comparison

Note: Custom winding options available for specific voltage/speed requirements. Third-party fire safety certifications (UL/EN) can be provided upon request.

For critical life-safety applications, the RF-250's blend of rapid response, compact size, and fault-tolerant design makes it the preferred choice for modern smoke ventilation systems.