💨Pneumatic Dual Safety Solenoid Valve – TOYOOKI AD-SL231D(E) Series

Brand: TOYOOKI (豊興工業) | Solution for Press Machine Clutch/Brake
Meets Japanese Mechanical Press Structure Standards — Maximum reliability and safety for all types of press machines.

📘Introduction to Toyooki Dual Safety Valve

The Toyooki AD-SL231D(E) Series pneumatic safety dual solenoid valve is the gold standard in the press machine industry, specializing in controlling Air Clutch & Brake systems. Developed based on 40 years of practical experience, this valve series is renowned for its outstanding reliability, extremely fast response speed, and dual safety design.

The parallel dual valve structure ensures that even if one valve fails, the other can still perform the safety function (exhaust), stopping the machine immediately, in compliance with Article 56 of the Japanese Mechanical Press Structure Standards.

Model: AD-SL231D-506D-DA1

✨Key Features

• ✓High Reliability: Developed based on 40 years of application experience on press machines.
• ✓Fast Response & Stable Stop Angle: Optimized valve structure for large exhaust capacity, achieving precise and stable stop angles.
• ✓New Generation Solenoid: DIN standard connector, IP67 waterproof molded coil, and over 30% energy saving compared to the old model.
• ✓Wide Product Range: Available in sizes from small to large (3/8" ~ 2"), suitable for all types of press machines, including high-speed ones.
• ✓Easy Maintenance: Equipped with a standard manual override button.
• ✓Monitoring Option (M2/M3): Versions with integrated switches (Micro switch M2 or Proximity switch M3) allow direct monitoring of the main valve's operational status, building a more reliable safety system.
• ✓Compliance with Safety Standards: Meets strict Japanese safety requirements.

🏷️Model Designation and How to Order

Hydraulic/Pneumatic Symbol

To select the correct Toyooki AD-SL231D valve model, you need to identify the following factors according to the code structure:

AD-SL 231D (E) - [Size] D - (Monitor) - D [Voltage]

• (E): External pilot option - Leave blank for standard Internal pilot.
• [Size]: Port size (e.g., 303, 304, 404, 406, 506, 508, 710, 712, 916).
• (Monitor): Monitoring switch option - M2 (Micro switch) or M3 (Proximity switch). Leave blank if no switch.
• [Voltage]: Coil voltage type - A1 (AC100V), A2 (AC200V), A3 (AC110V), D2 (DC24V).

Example: Model AD-SL231D-506D-M2-DA1 means: Dual safety valve, internal pilot, P,A port size 3/4" (506), integrated Micro switch (M2), using AC100V (A1) voltage.

📋Detailed Specifications

Please refer to the specification table below for each specific model:

(Details on effective flow rate, response time, operating frequency, and weight for each valve size, including versions with M2/M3 switches, are available in the catalog)

General Specifications:

• Operating Pressure: 0.2 ~ 0.7 MPa.
• Operating Temperature: 5 ~ 40°C (No condensation).
• Coil Voltage: AC100V, AC110V, AC200V, AC220V (50/60Hz) or DC24V.
• Power Consumption: 7-9W (AC), ~7.7W (DC).

Safety Warning: Do not operate the valve with the manual override button while the flywheel is rotating to avoid serious accidents due to the slide dropping.

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