Airtac BSAI Locking Clamp Cylinder BSAI50X600S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI50X600S is a genuine double-acting ISO 15552 cylinder with a Ø50mm 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 1400 N.
- BoreØ50 mm
- Stroke600 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 BSAI50X600S
The AirTAC BSAI50X600-S is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released enclasp mechanism. Unlike standard cylinders, this clamp locks the carbon steel piston rod at ANY position along its 600 mm travel, providing a static holding force of 1400 N. It delivers 982 N push thrust at 0.5 MPa, but buyers must distinguish between thrust and holding force: the 1400 N clamp capacity resists external static loads independently of the 982 N pneumatic thrust used for movement. The lock engages bidirectionally and operates via a dedicated G1/8 enclasp port, separate from the 1/4 inch cylinder ports.
Crucially, the variable air cushion at the stroke ends only decelerates the piston; it does not hold the load. The clamp itself locks only after the rod has completely stopped, meaning it cannot brake a moving load. Furthermore, unlocking requires balanced air pressure on both sides of the piston, or the rod may jump abruptly. Fitted with a -S magnet, this cylinder supports precise position detection via AirTAC CMSE reed and DMSE electronic sensors.
Airtac BSAI Locking Clamp Cylinder BSAI50X600S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI50X600S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 600 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 BSAI50X600S Is Used
Vertical Axis Holding
Locks a 600 mm vertical lift at any intermediate height with 1400 N of holding force, preventing gravity-driven drops during operation.
Power Loss Safety
The spring-applied clamp engages instantly upon air loss anywhere in the travel, safely arresting the load after it stops.
Machining Position Hold
Secures a workpiece firmly at a precise intermediate point for drilling or inspection without relying on end-stop cushions.
Is the Airtac BSAI Locking Clamp Cylinder BSAI50X600S the Right Clamp-Lock?
Choose this 50 mm bore when an application requires holding a load mid-stroke rather than just at the end, a scenario where a plain SAI cylinder or a SAIL stroke-end-only lock would fail. If the 1400 N holding capacity is insufficient, stepping up to the 63 mm bore increases the hold to 2200 N and the 0.5 MPa thrust to 1559 N. Conversely, a 40 mm bore offers 900 N hold and 628 N thrust for lighter loads. Because the 600 mm stroke is substantial, an external guide rail is recommended to prevent side-loading damage to the rod thread and seals, despite the rod's ability to handle moderate lateral forces.
This model features a PT tapered port thread, a carbon steel rod, and a -S magnet for CMSE/DMSE sensors. It is dimensionally interchangeable per ISO 15552 and accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mountings. For safety-critical loads, an independent external mechanical measure is required, as the clamp is not a moving-rod brake and only engages after the piston stops.
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 BSAI50X600S FAQ
The clamp-lock provides a static holding force of 1400 N. It is bidirectional and locks the rod at any position, but it only engages after the cylinder has stopped moving; it cannot brake a moving rod.
The clamp unlocks via a G1/8 enclasp port, but only when the air pressures on both sides of the piston are balanced. If pressures are unbalanced, the rod can move abruptly upon release, so pressure must be equalized first.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAI Locking Clamp Cylinder BSAI50X600S
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