1. Z-Axis Intermediate Stop for Cleanroom Pick-and-Place
In semiconductor and electronics assembly (ISO Class 6 environments), vertical pneumatic handling systems often require a 'hover' or pause function. This application uses the valve to control a vertical linear actuator that lifts delicate wafers or PCBs. The valve stops the actuator in mid-stroke to allow for visual inspection by a camera system before the component is finally placed.
Problem SolvedStandard 5/2 valves force the actuator to full extension or retraction, making mid-air inspections impossible without complex external mechanical stops. The 5/3 closed-center function blocks airflow to both cylinder ports, creating a pneumatic lock that holds the Z-axis stationary for the camera cycle.
ISO Class 6 Cleanroom5/3 Closed CenterVertical Load HoldingPneumatic LockingMid-position Stop
2. Fail-Safe Gripper 'Freeze' in Packaging Automation
Used in high-speed secondary packaging lines to control pneumatic grippers or clamps. If a safety light curtain is breached or power is cut during a transfer, the valve's mechanical spring reset automatically returns the spool to the closed center position. This traps air in the gripper cylinder, freezing it in its current state.
Problem SolvedPrevents dropped loads (which would occur with an exhaust-center valve) or crushing injuries (which could occur if the valve defaulted to full extension). This ensures the product remains securely gripped and the machine state is preserved for a safe restart.
Safety HoldMechanical Spring ResetLoad RetentionEmergency StopTrapped Pressure
3. Three-Position Conveyor Diverter Control
Controls a pneumatic diverter arm in a logistics sorting center. The valve enables the actuator to move to three distinct states: fully extended (Sort Left), fully retracted (Sort Right), or stopped in a neutral mid-position (Straight/Pass-through). The high flow rate (700 l/min) ensures rapid response times for high-throughput lines.
Problem SolvedAllows a single pneumatic cylinder to handle three sorting paths instead of two, reducing mechanical complexity. The closed-center design provides a rigid pneumatic hold in the neutral position, preventing the arm from drifting due to conveyor vibration or airflow fluctuations.
Sorting DiverterIntermediate PositioningHigh Flow 700 l/min3-Position ControlLogistics Automation
