Holding solenoid WL0822

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Overview
Mini tubular solenoid WL0822 is a compact electromagnetic actuator that converts electrical energy into controlled linear motion. It features a tubular coil assembly, a ferromagnetic plunger and a return mechanism. Designed for space-constrained industrial and OEM applications, it is available in push, pull and latching variants and supports multiple voltage options for integration into automation, security, medical and consumer devices.

Working principle

• Electric current is applied to the coil surrounding the tubular housing.
• The energized coil produces a magnetic field that acts on the ferromagnetic plunger.
• The plunger moves axially into the coil (push or pull) producing linear actuation.
• When power is removed, a return spring or external mechanism restores the plunger to its rest position.

Main characteristics and benefits

• Compact tubular housing concentrates magnetic flux and protects internal components from contamination.
• High power-to-size ratio and precise, repeatable motion control.
• Fast response time with configurable stroke, voltage and force options.
• Customizable for OEM integration with long service life and low maintenance requirements.

Applications
Typical applications include industrial automation, robotics, packaging and sorting systems, medical diagnostic and dispensing instruments, electronic locks and access control, vending machines, printing and office equipment, automotive mechanisms and other space-limited actuation tasks.

Advantages and limitations

• Advantages: compact form factor, energy-efficient operation, good repeatability, protective metal housing and straightforward OEM customization.
• Limitations: limited maximum force for long-stroke needs, possible coil heating under excessive continuous duty, audible actuation noise in very quiet environments, may require external springs or auxiliary circuitry for some uses.

Troubleshooting (summary)

• Solenoid does not activate: verify supply voltage, wiring, coil continuity and control signals.
• Low actuation force: check input voltage, mechanical interference, plunger alignment and load requirements.
• Overheating: confirm duty cycle, reduce continuous energization and improve ventilation.
• Excessive noise: check mounting, spring condition and plunger alignment; reduce impact loads.
• Intermittent operation: inspect electrical connections, switches and coil insulation.

Product Datasheet (key values)
Brand: Weilong Technology
Model Number: WL0822
Rated Voltage (V): DC 5 V / 12 V / 24 V
Rated Power (W): 3–5 W
Work Model: Tubular push-pull type
Holding Force (N): 0.1–0.3 N (spec sheet also cites ~1.8 kg equivalent)
Stroke (mm): 3–5 mm
Reset Time: ~30 ms
Service Life: ~100,000 shots
Certifications: CE, RoHS, ISO9001
Material: Carbon steel housing, zinc plated
Lead Wire Length: 200 mm
Dimension Tolerance: ±0.1 mm
Water-proof: none specified
Insulation Class: F
Hi-Pot Test: AC 600 V 50/60 Hz 2 s
Operating Temperature: -10 °C to 100 °C
Duty Cycle Guidance: typical 10%–30% (design range 1%–100%)
Payment Term: TT or LC at sight
MOQ: 1000 pcs — Supply Ability: 5000 pcs/week — Delivery Time: 30 days — Port: Shenzhen
Warranty: 1 year — Sample Order: yes

Technical specifications

• Model: WL0822
• Brand: Weilong Technology
• Rated voltages: DC 5 V / 12 V / 24 V
• Rated power: 3–5 W
• Type: Tubular push-pull solenoid
• Stroke: 3–5 mm
• Reset time: ~30 ms
• Typical holding force: 0.1–0.3 N (also cited ~1.8 kg)
• Service life (typ.): ~100,000 shots
• Housing: carbon steel, zinc plated
• Insulation class: F; Hi-Pot: AC 600 V 2 s
• Operating temperature: -10 °C to 100 °C
• Duty cycle guidance: 10%–30% (design range 1%–100%)
• Lead wire length: 200 mm
• Dimension tolerance: ±0.1 mm
• Certifications: CE, RoHS, ISO9001