Airtac BSAI Locking Clamp Cylinder BSAI80X100S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI80X100S is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 100mm 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
- Stroke100 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 BSAI80X100S
The AirTAC BSAI80X100-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock. It delivers 2513 N of thrust at 0.5 MPa and is designed to hold a load securely at any position along its 100 mm stroke. A defining feature is its bidirectional clamping mechanism, which provides a static holding force of 3600 N. It is crucial to distinguish this holding force from the cylinder thrust; the 3600 N rating dictates the static load capacity when stationary, whereas thrust governs dynamic motion.
This model includes a -S magnet for precise position sensing via AirTAC CMSE reed and DMSE solid-state switches. The clamping action is engaged mechanically by a spring and released using a separate G1/8 enclasp port, requiring 0.15-0.7 MPa of air pressure. Remember that the variable air cushion only decelerates the piston near the stroke ends; it does not hold the load. The clamp locks the 25 mm carbon steel rod only after the cylinder has stopped moving, meaning it cannot function as a dynamic brake.
Airtac BSAI Locking Clamp Cylinder BSAI80X100S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI80X100S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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 BSAI80X100S Is Used
Vertical Axis Hold
Prevents gravity-driven drops on vertical lifts by clamping the 25 mm rod securely at any height during an air pressure loss.
Machining Position Lock
Freezes a workpiece at a specific intermediate stroke position for precise drilling or milling without relying on hydraulic locks.
Emergency Stop Safety
Holds the load instantly when power or air is lost, though an independent safety measure is required for human protection.
Is the Airtac BSAI Locking Clamp Cylinder BSAI80X100S the Right Clamp-Lock?
Select this 80 mm bore model when an application requires holding a mid-stroke load that exceeds the capacity of smaller bores, such as the 63 mm version with its 1402 N pull thrust and 2200 N holding force. Alternatively, if your static load is lighter, stepping down reduces unnecessary air consumption. Choose this BSAI clamp-lock over a SAIL model when you need the rod gripped at any point in the travel, rather than only at the stroke end. A plain SAI cylinder suffices if no intermediate holding is required.
When replacing a unit, match the single-rod configuration, 80 mm bore, 100 mm stroke, and PT tapered port threads. The 25 mm rod and M20x1.5 thread offer excellent side-load resistance, but for any stroke over 300 mm, an external guide rail is recommended. Compatible mounts include Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2. Ensure safety by balancing pressures on both sides of the piston before unlocking; otherwise, the rod can jump abruptly. For human-safety-dependent stops, add an independent mechanical 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 BSAI80X100S FAQ
It provides a static holding force of 3600 N. The clamp locks the rod at any position bidirectionally, but only after the cylinder has stopped moving; it cannot brake a moving rod.
The clamp is spring-applied and air-released via a separate G1/8 port. You must balance the air pressures on both sides of the piston before unlocking, or the rod may move abruptly. The cushion does not hold the load.
Related AirTAC Lock & Standard Cylinders
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