Holding solenoid WL0616

rotaryself-holdingminiature

Overview
The bistable rotary solenoid is an electromagnetic actuator that rotates between two stable positions. It requires power only to change state; after switching the rotor remains latched without continuous current, enabling low power consumption and reduced heating — suitable for battery-powered and energy-sensitive systems.

How it works
A coil receives a pulse or a polarity-switched pulse to move the internal rotor/armature to a preset angle (common options: 20°, 25°, 30°, 45°, 60°, 90°). A permanent magnet or mechanical latch holds the rotor after the pulse. Typical switching times range from 10–50 ms, with high-performance variants below 10 ms.

Main characteristics and benefits

• Low power consumption: short pulse required to switch; no continuous holding current.
• Reduced thermal buildup compared with continuous-current rotary actuators.
• High reliability and long operational life (typical mechanical/electrical life ≥1,000,000 cycles).
• Fast response suitable for high-speed switching applications.
• Compact size and simple electromagnetic structure with few moving parts.
• Quiet operation and stable latched holding force.

Common applications

• Banknote counters and currency sorting machines (diverter gates, flaps).
• Vending machines and dispensers (release/locking mechanisms).
• Smart locks and security latching systems.
• Industrial automation: switching mechanisms, positioning devices, robot end-effectors.
• Medical devices: sample selectors, valve actuators, optical switching elements.
• Ticketing machines, gaming machines, camera modules and precision switching equipment.

Advantages

• Energy savings due to pulsed operation and magnetic/mechanical latching.
• Position memory: maintains state without power.
• Low thermal dissipation thanks to brief coil energization.
• High switching speed and small footprint.
• Suitable for battery-operated and embedded systems.

Limitations / Disadvantages

• Limited rotation range compared with continuous rotary motors (fixed angles only).
• Lower continuous torque than motors or geared actuators; not for high-torque continuous rotation.
• Typically only two preset positions; not suitable for multi-position continuous control without additional mechanisms.
• Requires a pulse drive/control circuit capable of delivering correct pulse shape and/or polarity changes.
• Mechanical wear on springs or stops may occur over very long life; performance depends on voltage stability and environment.

Datasheet summary and usage notes
For WL0616 selection key parameters include rotation angle, torque output, coil voltage and pulse-drive capability. Consider response time, duty cycle and mounting constraints when integrating into counters, vending devices, locks or medical instruments.

Technical specifications

• Model: WL0616
• Product dimensions (typical): 39 × 32 × 16 mm
• Rotation angle (example): 20° (options: 20°, 25°, 30°, 45°, 60°, 90°)
• Starting torque: ≥2 N·cm
• Nominal coil voltage (example): DC 24 V
• Pulse power (example): 28.8 W
• Current (at 24 V example): 1.2 A
• Coil resistance (example): 20 Ω
• Operating life (mechanical/electrical): ≥1,000,000 cycles (typical)
• Typical working cycle (example): 0.03 s ON, 0.12 s OFF
• Typical switching time: 10–50 ms (high-performance variants may be <10 ms)
• Typical torque ranges for selection: small gates 0.05–0.2 Nm, medium 0.2–0.5 Nm, heavier diverters up to ~0.5–1.0 Nm
• Drive method: pulse drive with polarity switching or specified pulse waveform; requires appropriate driver electronics
• Key selection parameters: rotation angle, output torque, response time, coil voltage, duty cycle, mounting size and environmental conditions