Airtac BSAI Locking Clamp Cylinder BSAI40X600
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI40X600 is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 600mm 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 900 N.
- BoreØ40 mm
- Stroke600 mm
- Cylinder portG1/4
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM12×1.25
- 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 BSAI40X600
The AirTAC BSAI40X600 is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock mechanism. It delivers 628 N of push thrust and 528 N of pull thrust at 0.5 MPa, while the integrated enclasp gripper provides a static holding force of 900 N. You must size this holding force against your static load, as the clamp holding force is a completely separate quantity from the cylinder thrust. The clamp locks the carbon steel rod at any position along its 600 mm travel and holds bidirectionally.
This cylinder uses a 1/4 PT cylinder port for standard actuation and a separate G1/8 enclasp port to release the lock. The variable air cushion at both ends only decelerates the piston near the stroke limits; the clamp itself is what secures the load. The lock engages solely after the rod has stopped, meaning it cannot brake a moving load. Furthermore, the clamp must be unlocked with balanced air pressures on both sides of the piston to prevent the rod from jumping abruptly upon release.
Airtac BSAI Locking Clamp Cylinder BSAI40X600 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI40X600 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 600 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 900 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 800 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 (Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa (max) | 880 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (900 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI40X600 Is Used
Vertical Axis Holding
Locks a 600 mm vertical lift at any intermediate height with 900 N of force to prevent gravity drops during operation.
Emergency Power Loss Hold
Spring-applied clamp secures the carbon steel rod instantly when air pressure drops, safely freezing the payload mid-stroke.
Machining Position Lock
Holds a workpiece steady at a precise custom location within the 600 mm travel for machining or inspection tasks.
Is the Airtac BSAI Locking Clamp Cylinder BSAI40X600 the Right Clamp-Lock?
Choose this 40 mm bore when you need 900 N of holding power and 628 N of thrust at 0.5 MPa. If your static load exceeds 900 N, step up to the 50 mm bore, which offers 1400 N of holding force and 982 N of push thrust. Conversely, if the load is lighter, the 32 mm bore provides 600 N of holding force. Select this BSAI model over a SAIL cylinder when you need to lock at any point in the 600 mm travel, rather than only at the stroke end. If no intermediate holding is required, a plain SAI cylinder suffices.
Because this 600 mm stroke is long, the 16 mm carbon steel rod and M12x1.25 thread still require external guidance to prevent excessive side-loading and rod bending. The operating pressure is 0.15-0.7 MPa. For replacements, match the single-rod configuration, 1/4 PT ports, and the BSAI mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, TCM2). As no magnet is specified, position sensing via CMSE or DMSE switches is not enabled.
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 BSAI40X600 FAQ
The BSAI40X600 provides a static holding force of 900 N. The spring-applied clamp locks the rod at any position along the 600 mm stroke, and it holds bidirectionally whether the rod was extending or retracting.
The clamp locks only after the cylinder has stopped; it cannot brake a moving rod. It must be unlocked by applying balanced air pressure to both sides of the piston via the G1/8 enclasp port, otherwise the rod may move abruptly. Safety-critical loads require an additional independent safety measure.
Related AirTAC Lock & Standard Cylinders
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