Overview
The SMC NCQ8B300-300 compact pneumatic cylinder is a square-body, double-acting design engineered for automation and machine control applications. This surplus unit arrives in new, open box condition and is fully functional, making it an economical choice for system integrators and maintenance professionals replacing worn or failed pneumatic actuators.
Key Features
- Double-acting pneumatic cylinder with compact body design
- Square body form allows close center-to-center mounting in tight spaces
- 200 PSI (1.3 MPa) rated operating pressure
- Built-in magnet for reed switch and auto-switch compatibility
- Multi-sided auto switch mounting options for flexible installation
- Durable construction suitable for industrial automation and machine tooling
Technical Specifications
- Model: NCQ8B300-300
- Manufacturer: SMC Pneumatics
- Cylinder Type: Compact, Double-Acting
- Body Style: Square Interchange Type
- Maximum Pressure: 200 PSI (1.3 MPa)
- Built-in Magnet: Yes
- Auto Switch Compatible: Reed switch and multi-position mounting
- Condition: New – Open Box
- Weight: Approximately 3 lbs
- Made In: USA
Typical Applications
- Industrial machine tool actuators and positioning systems
- Automated manufacturing equipment and assembly lines
- Pneumatic control systems requiring compact actuation
- Material handling and automation system integration
- Process automation and machinery retrofit projects
- Maintenance and repair of existing pneumatic machinery
Compatibility & Replacements
Compatible With
- SMC pneumatic control systems and networks
- Standard 200 PSI industrial pneumatic circuits
- Reed switch and auto switch sensors (multi-sided mounting)
- Compressed air systems 1.3 MPa and below
- Custom automation platforms using SMC compact cylinders
Replaces / Drop-In Replacement For
- Other SMC NCQ8 series compact cylinders with matching bore and stroke (upon verification)
- Direct replacement for failed NCQ8B300-300 units
Works With
- SMC pneumatic valve systems and solenoid controls
- Industrial PLC and automation control systems
- Reed switches and proximity sensors for position feedback
- Standard pneumatic tubing and fittings (ISO/IEC standards)
- Compressed air supply 40–1000 kPa operating range
















