Airtac BSAI Locking Clamp Cylinder BSAI100X500S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X500S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 500mm 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
- Stroke500 mm
- Cylinder portG1/2
- 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 BSAI100X500S
The AirTAC BSAI100X500-S is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It secures the carbon steel piston rod at any position along its 500mm travel, delivering a static holding force of 5500 N. Operating within a 0.15-0.7 MPa range, the bore generates 3927 N of thrust at 0.5 MPa and up to 5497 N at 0.7 MPa. You must size the holding force against your static load, because the 5500 N clamp retention is a separate quantity from the cylinder thrust.
This bidirectional enclasp engages only after the rod has completely stopped; it cannot brake a moving load. Unlocking requires balanced air pressure across the piston via the dedicated G1/8 enclasp port, plus the two 1/2 inch PT cylinder ports, preventing abrupt rod jumps. The variable air cushion merely decelerates the piston near stroke ends, whereas the clamp itself provides the actual load retention. An -S magnet enables position sensing with AirTAC CMSE reed and DMSE solid-state switches.
Airtac BSAI Locking Clamp Cylinder BSAI100X500S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X500S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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 BSAI100X500S Is Used
Vertical Axis Hold
Prevents a 100mm bore lifting load from dropping under power loss, securing the rod at any height with 5500 N of force.
Machining Position Lock
Clamps the rod mid-stroke to hold a workpiece rigidly for machining or inspection without relying on pneumatic pressure.
Emergency Safety Stop
Engages the enclasp mechanism anywhere in the 500mm travel to freeze motion during an unexpected air supply failure.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X500S the Right Clamp-Lock?
Choose this 100mm bore when a load needs 5500 N of mid-stroke retention, or step down to the 80mm bore (2268 N pull thrust at 0.5 MPa, 3600 N holding force) for lighter loads. Select the BSAI clamp-lock over a SAIL model when you must secure the rod anywhere along the travel, rather than only at the stroke end. If you only need standard movement without mid-stroke holding, a plain SAI cylinder suffices. For any safety-critical application, remember the clamp locks only after the cylinder stops and an independent safety measure is required.
This BSAI100X500-S replacement matches a single-rod, 100x500mm configuration with PT ports and a magnet for CMSE/DMSE sensors. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. Because the stroke is 500mm, the M20x1.5 rod thread and 25mm rod diameter provide robust side-load capacity, but an external guide is recommended for unsupported lengths. The operating speed is 30-500 mm/s.
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 BSAI100X500S FAQ
The clamp-lock provides a static holding force of 5500 N. It locks the rod at any position along the 500mm stroke, but only engages after the cylinder has stopped moving.
The clamp unlocks only when the air pressures on both sides of the piston are balanced and the cylinder has stopped. You apply air to the dedicated G1/8 enclasp port to release the spring-applied gripper safely.
Related AirTAC Lock & Standard Cylinders
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