Airtac BSAI Locking Clamp Cylinder BSAI80X160S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI80X160S is a genuine double-acting ISO 15552 cylinder with a Ø80mm 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 3600 N.
- BoreØ80 mm
- Stroke160 mm
- Cylinder portG3/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
- 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 BSAI80X160S
The AirTAC BSAI80X160-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock mechanism. A defining trait of this series is its ability to lock the piston rod at ANY position along its 160 mm travel, providing a robust static holding force of 3600 N. Because it is a single-rod design, it generates 2513 N of push thrust and 2268 N of pull thrust at 0.5 MPa. Remember that the clamp holding force is a separate quantity from the cylinder thrust; you must size the 3600 N holding capacity against your static load, not the thrust output.
This model features a carbon steel rod and includes a magnet (-S) for position sensing with AirTAC CMSE (reed) or DMSE (electronic) switches. The clamp mechanism relies on a third G1/8 enclasp port, distinct from the 3/8 cylinder ports, to release the rod. Furthermore, the variable air cushions at the stroke ends only decelerate the piston; the mechanical clamp is the sole device responsible for securing the load.
Airtac BSAI Locking Clamp Cylinder BSAI80X160S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI80X160S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 160 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 3600 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 (Ø80 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (3600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI80X160S Is Used
Vertical Axis Holding
Secures a 2513 N payload at any intermediate height on a vertical lift, preventing gravity-driven drops during operation or maintenance.
Emergency Power-Loss Hold
The spring-applied clamp engages automatically when air pressure drops, freezing the rod instantly in place to protect processes and operators.
Machining Position Lock
Locks the workpiece firmly at a custom mid-stroke machining coordinate, absorbing cutting vibrations via its 3600 N static grip.
Is the Airtac BSAI Locking Clamp Cylinder BSAI80X160S the Right Clamp-Lock?
Choose this 80 mm bore when an application demands substantial mid-stroke holding that a plain SAI cannot provide, or when a SAIL stroke-end lock is insufficient because the load must be secured anywhere in the 160 mm travel. If your load is lighter, stepping down to a 63 mm bore offers 1559 N thrust at 0.5 MPa and a 2200 N hold. If you need to hold a heavier payload, the 100 mm bore provides 3927 N thrust and a 5500 N hold.
When replacing this unit, match the single-rod design, 80 mm bore, 160 mm stroke, and PT port threads. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. The 25 mm rod and M20x1.5 thread provide excellent side-load capacity, but always ensure balanced air pressure on both sides of the piston before unlocking. The clamp locks only after the rod has stopped, so it cannot brake a moving load; human-safety applications require an independent external 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 BSAI80X160S FAQ
The BSAI80X160-S provides a static holding force of 3600 N. Unlike a SAIL cylinder that only holds at stroke ends, this clamp-lock mechanism engages a spring-applied gripper to hold the rod securely at any position along its 160 mm travel.
The clamp locks only after the cylinder rod has completely stopped; it cannot brake a moving load. To unlock it safely, you must apply 0.15-0.7 MPa of air to the G1/8 enclasp port while ensuring the pressures on both sides of the piston are balanced, otherwise the rod may move abruptly upon release.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAI Locking Clamp Cylinder BSAI80X160S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.