Airtac BSAI Locking Clamp Cylinder BSAI32X50S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X50S is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 50mm stroke and a spring-applied, air-released clamp-lock that holds the rod at ANY position along its travel — with a static holding force of 600 N.
- BoreØ32 mm
- Stroke50 mm
- Cylinder portG1/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM10×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSAI Locking Clamp Cylinder BSAI32X50S
The AirTAC BSAI32X50-S is a double-acting ISO 15552 profile cylinder equipped with a built-in clamp-lock mechanism. Unlike a standard SAI cylinder, this spring-applied, air-released gripper clamps the 12mm carbon steel piston rod to hold a load securely at ANY position along its 50mm stroke, delivering a static holding force of 600 N. It operates at 0.15-0.7 MPa, generating a practical maximum thrust of 563 N. Remember that the holding force is a separate quantity from the thrust; you must size the 600 N clamp capacity against your static load, not the cylinder's push force.
This unit features a PT-threaded 1/8 cylinder port and a distinct G1/8 enclasp port that supplies air to release the brake. The variable air cushion at the stroke ends only decelerates the piston to prevent impact damage; it does not hold the load. The integrated -S magnet allows precise position tracking using AirTAC CMSE reed or DMSE electronic solid-state sensors.
Airtac BSAI Locking Clamp Cylinder BSAI32X50S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X50S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 50 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/8 |
| Rod thread | M10×1.25 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 600 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Max stroke | Up to 700 mm |
Specifications follow the official AirTAC BSAI datasheet (ISO 15552). Operating pressure is 0.15–0.7 MPa (lower than a plain SAI). Port options: PT / G.
How the Clamp-Lock Holds
static holding force (Ø32 mm)
A spring-applied gripper clamps the rod and holds the load at any position in the stroke — not just at the stroke end (that is a SAIL) — and it is bidirectional: it holds whether the rod was extending or retracting.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa (max) | 563 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI32X50S Is Used
Vertical Axis Hold
Secures a vertically lifted payload at any intermediate height, preventing gravity-induced drops when air pressure is removed.
Power Loss Safety
Provides an emergency hold anywhere in the travel range during a sudden pneumatic power failure, stopping workpiece drift.
Machining Position Lock
Freezes the rod at a specific coordinate for localized processing or inspection without maintaining live cylinder pressure.
Is the Airtac BSAI Locking Clamp Cylinder BSAI32X50S the Right Clamp-Lock?
Choose this 32mm bore when an application demands secure intermediate stopping, whereas a plain SAI cylinder suffices for simple end-to-end motion. If you only need the load held at the fully extended or retracted stroke end, the AirTAC SAIL series is a simpler alternative. To step up thrust, the neighbouring 40mm bore offers 628 N push force at 0.5 MPa and a 900 N holding force. To step down, evaluate if a smaller profile meets your payload requirements.
As a replacement match, ensure you specify the single-rod configuration, 32mm bore, 50mm stroke, PT port threads, and the -S magnet option. Mounting options include Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2. The clamp locks only after the rod has stopped; it cannot brake a moving load. Furthermore, it must be unlocked with balanced air pressures on both sides of the piston, or the rod may jump abruptly. For safety-critical human loads, always add an independent mechanical safety measure.
Quick checklist
- ✓ Hold needed at any position?
- ✓ Or stroke-end only → use SAIL
- ✓ Holding force ≥ your load
- ✓ Balanced-pressure unlock circuit
- ✓ Extra safety measure for people
Airtac BSAI Locking Clamp Cylinder BSAI32X50S FAQ
The clamp-lock provides a static holding force of 600 N. It is bidirectional and engages via a spring mechanism to hold the rod securely at any position along the 50mm stroke, remaining locked even without air pressure.
The clamp locks only after the cylinder has stopped moving and cannot brake a moving rod. To release it safely, air pressure must be balanced on both sides of the piston via the G1/8 enclasp port; otherwise, the rod can move abruptly on release.
Related AirTAC Lock & Standard Cylinders
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