Overview
The PHD CRS6U20X40-BB-M is a double-acting pneumatic compact cylinder from PHD’s Series CRS line. This unit combines a space-saving footprint with robust construction, making it ideal for machinery and process automation where cylinder length and mounting flexibility are critical. The 20mm bore with 40mm stroke delivers consistent linear motion in a compact package.
Key Features
- Compact Design: Compact cylinder size provides power in a small package for applications where space is limited
- Self-Lubricating Seals: Self-lubricating nitrile piston seal increases cylinder performance and provides the best actuator life expectancy in its class
- Magnetic Piston (-M): Equipped for integration with JC1 Series proximity switches for position sensing without external hardware
- Shock Pads (BB): Dual shock absorbers on both extend and retract strokes for smooth, controlled motion and reduced impact wear
- Clear Anodized Body: Clear anodized extruded body with integral slots for flush mounting of switches
- Multiple Mounting Options: Thru and threaded holes for easy cylinder mounting
Technical Specifications
- Bore Size: 20 mm
- Stroke Length: 40 mm
- Operating Type: Double-acting
- Piston Rod: Single rod
- Mounting Style: CRS6U (base style with thru holes)
- Shock Pads: Both directions (BB option)
- Magnetic Piston: Yes (-M option)
- Cylinder Body: Clear anodized aluminum extrusion
- Piston Seal Material: Nitrile (self-lubricating)
- Minimum Life Rating: 70 million linear inches [1.77 million linear meters] minimum at operating temperatures under 120°F [49°C]
- Port Configuration: Ported for 1/8″ NPT fittings (standard)
Typical Applications
The PHD CRS6U20X40-BB-M is well-suited for:
- Pick-and-place automation systems
- Assembly line clamping mechanisms
- Material handling and transfer applications
- Machine tool fixtures and work-holding devices
- Press and stamping operations requiring compact actuation
- Test stands and inspection automation
Compatibility & Replacements
Compatible With
- PHD JC1 Series proximity switches for magnetic piston detection
- Standard pneumatic control valve manifolds (1/8″ NPT porting)
- Industrial automation platforms requiring compact linear actuators
- Pneumatic systems operating 0–100 psi (0–6.9 bar)
- OEM machinery with 20mm bore compact cylinder specifications
Replaces / Drop-In Replacement For
The CRS6U20X40-BB-M is part of PHD’s standard CRS Series catalog. Verify compatibility with your system integrator before ordering alternative bore/stroke combinations or metric equivalents, as mounting hole patterns may differ.
Works With
- Pneumatic directional control valves (solenoid or manual)
- Pneumatic speed controllers and flow regulators
- Air pressure reducing and relief valves
- Industrial PLC and automation controllers via proximity switch feedback
- Pneumatic tubing and quick-disconnect fittings
