Festo ADVU-20-5-A-P-A Compact Pneumatic Cylinder

Technical Overview

The Festo 156600 ADVU-20-5-A-P-A is a highly space-efficient, double-acting compact pneumatic cylinder designed for linear motion in tight installation spaces. Requiring up to 50% less space than standard ISO 15552 cylinders, this robust actuator features a 20 mm bore and a very short 5 mm stroke. It operates between 1 to 10 bar of pressure and is equipped with a magnetic piston for precise proximity position sensing. It features elastic cushioning rings at both ends to reduce operational noise and mechanical shock, alongside a male M10x1.25 threaded high-alloy steel piston rod. It delivers a theoretical advance force of 188 N at 6 bar.

Key Features

Ultra-compact double-acting pneumatic cylinder with a 20 mm bore and 5 mm short stroke.
Integrated magnetic piston allows for contactless position sensing using standard proximity sensors.
Elastic cushioning rings at both ends significantly reduce impact energy, shock, and noise during high-speed actuation.
High-alloy steel male threaded (M10x1.25) piston rod ensures a robust mechanical coupling.
Wrought aluminum alloy cylinder barrel provides CRC Class 2 moderate corrosion resistance.
Broad operating pressure range of 1 to 10 bar (14.5 to 145 psi) for versatile pneumatic system integration.

Technical Specification Matrix

Parameter	Value
Piston Diameter (Bore)	20 mm
Stroke Length	5 mm
Mode of Operation	Double-acting
Operating Pressure	1 to 10 bar (14.5 to 145 psi)
Theoretical Force at 6 bar (Advance)	188 N
Theoretical Force at 6 bar (Return)	141 N
Pneumatic Connection	M5
Piston Rod Thread	M10x1.25 (Male Thread)
Cushioning	Elastic cushioning rings/pads at both ends (P)
Position Sensing	Via proximity sensor (built-in magnet)
Ambient Temperature	-20 °C to 80 °C
Corrosion Resistance Class	CRC 2 (Moderate corrosion stress)

Industrial Applications

1. High-Speed Reject Actuator for Small Parts Sorting

Utilizes the extremely short 5mm stroke and rapid double-acting capability to swiftly eject out-of-tolerance parts from a high-speed inspection conveyor. The compact design allows integration directly into tightly packed optical sorting stations.

Problem Solved

Eliminates spatial interference issues on dense conveyor lines where standard ISO cylinders are too large to fit, providing just enough clearance and speed to reliably remove lightweight defects without disrupting workflow.

5mm strokeDouble-actingProximity sensingCompact footprint

2. Low-Profile Clamping for Precision Machining Fixtures

Serves as a reliable, space-saving pneumatic clamp in automated machining or assembly fixtures, applying a firm 188N of theoretical force at 6 bar to lock down small metallic or plastic workpieces.

Problem Solved

Provides necessary holding force within highly restricted fixture envelopes, preventing workpiece shift during processing while allowing simple end-effector integration via the M10x1.25 male rod thread.

188N advance forceM10x1.25 male threadElastic cushioning1 to 10 bar pressure

3. Micro-Pressing Station for Electronics Assembly

Provides a controlled, short-stroke pressing action for seating small connectors, bearings, or labels onto printed circuit boards and electronic housings within clean, space-constrained automated cells.

Problem Solved

Prevents mechanical damage to delicate PCB assemblies by utilizing built-in elastic cushioning and precise magnetic proximity positioning, all while taking up 50% less overhead structural space than conventional cylinders.

Elastic cushioning ringsPosition detectionWrought aluminum alloy barrelLow impact energy