Airtac BSAI Locking Clamp Cylinder BSAI80X200S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI80X200S is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 200mm 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
- Stroke200 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 BSAI80X200S
The AirTAC BSAI80X200-S is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It secures the 25 mm carbon steel piston rod at any position along its 200 mm stroke, delivering a static holding force of 3600 N. Because it includes a -S magnet, it supports precise position detection using AirTAC CMSE reed switches or DMSE solid-state electronic sensors. The base extruded aluminum barrel is dimensionally interchangeable per ISO 15552 standards.
A critical distinction exists between the cylinder thrust and the clamp holding force: the thrust generates motion (2513 N push at 0.5 MPa), but the 3600 N clamp is what actually secures the static load. Remember that the variable air cushions only decelerate the piston near stroke ends; the enclasp clamp is the sole mechanism holding the load. Furthermore, the clamp requires a third G1/8 unlock port and 0.15-0.7 MPa operating pressure to function safely.
Airtac BSAI Locking Clamp Cylinder BSAI80X200S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI80X200S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 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 BSAI80X200S Is Used
Vertical Load Holding
Secures elevated masses at any point in the stroke, preventing gravity-driven drops during operation pauses.
Power Loss Safety
The spring-applied clamp engages automatically upon air loss, safely freezing the rod position mid-travel.
Machining Position Lock
Holds a workpiece rigidly at a specific intermediate stroke length for precise milling or inspection tasks.
Is the Airtac BSAI Locking Clamp Cylinder BSAI80X200S the Right Clamp-Lock?
Step down to a 63 mm bore if your application requires less thrust (1559 N push at 0.5 MPa) and a lower 2200 N holding capacity, or move up to a 100 mm bore for 3927 N thrust and a 5500 N hold. Choose this BSAI clamp-lock over a SAIL model when you must secure a load mid-stroke rather than only at the end. A plain SAI cylinder suffices if live air pressure constantly balances the load and no static holding is required.
This 80 mm bore model features a 3/8 cylinder port and PT tapered threads. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. The robust M20x1.5 rod thread handles high side loads well. Remember the clamp locks only after the rod stops; it cannot brake a moving load. Always unlock with balanced piston pressures to prevent abrupt rod jump, and add independent safety measures for human-safety-critical holds.
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 BSAI80X200S FAQ
The integrated clamp-lock provides a static holding force of 3600 N. It can secure the rod at any position along the 200 mm stroke, but it only engages after the cylinder has stopped moving; it is not a dynamic brake.
You must apply air to the G1/8 enclasp port to release the clamp. For safety, ensure the air pressures on both sides of the piston are balanced before unlocking, otherwise the rod may move abruptly. An independent safety measure is required for human-safety-critical applications.
Related AirTAC Lock & Standard Cylinders
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