Overview
The Allenair A-2×4-BC cylinder is a standard double-acting pneumatic cylinder engineered for industrial compressed air systems. With a 2″ bore and 4″ stroke, this unit delivers consistent performance in repetitive motion and linear actuation tasks. The BC designation indicates cushioning at both ends, reducing shock and noise during rapid cycling while extending component life and improving system reliability.
Key Features
- Double-acting design operates smoothly in both extend and retract directions
- Cushioned both ends reduces impact shock and operating noise
- Single-rod configuration for standard mounting and load handling
- Pre-lubricated with long-lasting formulation—minimal maintenance required
- Nitrile seals rated for typical industrial temperature range (–40°F to +250°F)
- Brass tube construction with precision cross-hatch honing for optimal lubrication retention
Technical Specifications
- Bore Diameter: 2 inches
- Stroke Length: 4 inches
- Operating Pressure (Pneumatic): 150 PSI (max)
- Cylinder Type: Double-acting, single-rod
- Rod Type: Single rod
- Tube Material: Brass, precision honed
- Seals: Nitrile (Buna-N) standard
- Seal Operating Temperature Range: –40°F to +250°F
- End Cushioning: Both ends (BC option)
- Approximate Weight: 3.17–3.55 lbs
- Stroke Tolerance: ±1/32″
- Port Connection: Standard NPT threads
Typical Applications
The Allenair A-2×4-BC is ideal for manufacturing equipment, assembly machines, material handling systems, and automation controls where linear motion and force are required. Its cushioned design makes it especially suited for high-speed cycling, packaging machinery, press applications, and systems requiring vibration isolation. The 4″ stroke is commonly used in clamping, ejection, and positioning tasks across food processing, automotive, and general industrial sectors.
Compatibility & Replacements
Compatible With
- Standard pneumatic control systems (solenoid valve operated)
- Compressed air networks rated 150 PSI or less
- Manual and electric directional control valves
- Proportional directional control systems
- Standard ISO 4401 (CETOP) ported manifolds
- Allenair accessory switches and position sensors
Replaces / Drop-In Replacement For
The Allenair A-2×4-BC is a standard industrial cylinder. Verify compatibility with your system integrator before ordering replacement or cross-reference models, as drop-in replacements depend on mounting styles, port configurations, and rod positioning of the original equipment.
Works With
- Pneumatic control software and PLC ladder logic programming
- Manual pneumatic valve blocks and manifold assemblies
- Aluminum and steel mounting brackets (ordered separately)
- Allenair solenoid valves and proportional flow controls
- Standard air preparation equipment (filters, regulators, lubricators)
