Airtac BSAI Locking Clamp Cylinder BSAI100X1000
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X1000 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 1000mm 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 5500 N.
- BoreØ100 mm
- Stroke1000 mm
- Cylinder portG1/2
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAI Locking Clamp Cylinder BSAI100X1000
The AirTAC BSAI100X1000 is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock mechanism. A defining trait of this series is its capacity to secure the piston rod at any point along its 1000 mm travel, delivering a static holding force of 5500 N. The unit features a 25 mm carbon steel rod and generates 5497 N of thrust at 0.7 MPa. It is critical to distinguish this holding force from thrust; the 5500 N clamp rating dictates load retention during pressure loss, whereas thrust governs dynamic motion.
This enclasp device operates bidirectionally and engages a third G1/8 unlock port, separate from the 1/2 inch cylinder ports, requiring 0.15-0.7 MPa to release. Remember the variable air cushion only decelerates the piston near stroke limits; the clamp itself provides the true static hold. Furthermore, the mechanism locks only after the rod stops moving, meaning it cannot serve as a dynamic brake.
Airtac BSAI Locking Clamp Cylinder BSAI100X1000 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X1000 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 1000 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/2 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 5500 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 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 (Ø100 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa (max) | 5498 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (5500 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI100X1000 Is Used
Mid-Stroke Machining Hold
Secures a heavy workpiece at a specific intermediate point during machining or inspection, using the 5500 N clamp to prevent drift without relying on continuous air pressure.
Vertical Axis Drop Prevention
Maintains a lifted vertical load at any height along the 1000 mm travel if air supply drops, engaging only after the cylinder has stopped moving.
Emergency Power Loss Safety
Provides bidirectional static holding during sudden power outages, ensuring the load remains frozen in place until balanced unlock pressure is safely applied.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X1000 the Right Clamp-Lock?
Choose this 100 mm bore if your application requires holding a heavy load mid-stroke, as the 5500 N clamping force vastly exceeds what an end-of-stroke SAIL lock can achieve. If the workpiece only needs securing at fully extended or retracted positions, a plain SAI cylinder suffices. For lighter vertical loads, stepping down to a BSAI80X1000 offers 3600 N holding force and 3518 N thrust at 0.7 MPa. Because this model features a 1000 mm stroke, the extended 25 mm rod is susceptible to side-loading; an external guide is strongly recommended to prevent binding.
When replacing this component, match the single-rod configuration, 100 mm bore, 1000 mm stroke, and PT tapered ports. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. Since no magnet is specified, position sensing requires adding a -S option to work with CMSE reed or DMSE electronic switches. Always unlock the clamp with balanced piston pressures to prevent abrupt rod movement.
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 BSAI100X1000 FAQ
The clamp-lock provides a static holding force of 5500 N. It engages via a spring-applied, air-released mechanism that grips the 25 mm rod at any position, holding the load bidirectionally without continuous air pressure.
No, the clamp locks only after the cylinder has stopped; it cannot brake a moving rod. Additionally, it must be unlocked with balanced air pressures on both sides of the piston, or the rod may move abruptly. Independent safety measures are required for human-safety applications.
Related AirTAC Lock & Standard Cylinders
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