Airtac BSAI Locking Clamp Cylinder BSAI50X160S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI50X160S is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 160mm 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 1400 N.
- BoreØ50 mm
- Stroke160 mm
- Cylinder portG1/4
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM16×1.5
- 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 BSAI50X160S
The AirTAC BSAI50X160-S is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It provides a static holding force of 1400 N, gripping the 20mm carbon steel rod securely at any position along its 160mm stroke. The bidirectional clamp maintains the load whether the rod was extending or retracting. Operating at 0.15-0.7 MPa, it delivers 982 N of thrust at 0.5 MPa.
It is vital to distinguish holding force from cylinder thrust: the 1400 N clamp rating is a separate static metric for securing the load, entirely different from the 982 N pneumatic push force used for motion. Furthermore, the variable air cushion only decelerates the piston near stroke ends; the mechanical clamp is what actually holds the load. This unit features a third G1/8 enclasp port for unlocking, and includes a magnet for CMSE reed and DMSE electronic sensors.
Airtac BSAI Locking Clamp Cylinder BSAI50X160S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI50X160S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 160 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 1400 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 1000 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 (Ø50 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa (max) | 1374 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (1400 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI50X160S Is Used
Vertical Axis Holding
Prevents gravity-driven drops on vertical lifts by clamping the rod securely at any point in the 160mm travel.
Power Loss Safety
Spring-applied mechanism engages automatically during air or power loss to freeze the payload safely in place.
Machining Position Lock
Holds a workpiece steady at a specific intermediate stroke length for precise drilling or inspection processes.
Is the Airtac BSAI Locking Clamp Cylinder BSAI50X160S the Right Clamp-Lock?
Choose this 50mm bore when a load requires secure mid-stroke holding that exceeds the 345 N pull thrust of a 32mm bore, but without stepping up to the heavier 63mm size. If your application only requires holding at the stroke ends, a plain SAIL cylinder suffices; the BSAI is necessary when you must lock at any arbitrary position. Remember that the clamp locks only after the rod has stopped—it cannot brake a moving load. Additionally, it must be unlocked with balanced air pressures on both sides of the piston, or the rod may jump abruptly.
This model has a 1/4 PT tapered cylinder port, a 20mm rod with an M16x1.5 thread, and accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. The -S magnet works with AirTAC CMSE and DMSE switches for position sensing.
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 BSAI50X160S FAQ
It provides a static holding force of 1400 N. The clamp is bidirectional and locks the rod at any position along the stroke, but it only engages after the cylinder has stopped moving.
The clamp is released by supplying air to the third G1/8 enclasp port, but only after the air pressures on both sides of the piston are balanced. If pressures are not balanced, the rod can move abruptly upon release.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAI Locking Clamp Cylinder BSAI50X160S
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