Airtac BSAI Locking Clamp Cylinder BSAI63X200
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI63X200 is a genuine double-acting ISO 15552 cylinder with a Ø63mm 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 2200 N.
- BoreØ63 mm
- Stroke200 mm
- Cylinder portG3/8
- 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 BSAI63X200
The AirTAC BSAI63X200 is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It delivers a practical push thrust of 2182 N at 0.7 MPa, while the integrated enclasp mechanism provides a static holding force of 2200 N. It is crucial to distinguish between these two figures: the cylinder thrust moves the load, but the clamp holding force is what secures the load statically. You must size the holding force against your static load, not the thrust.
Unlike a standard cylinder, this unit locks the carbon steel piston rod at any position along its 200 mm stroke, holding bidirectionally whether the rod was extending or retracting. The clamp operates via a third G1/8 enclasp port, requiring 0.15-0.7 MPa to release. Remember that the variable air cushion only decelerates the piston near stroke ends; it does not hold the load. The clamp engages only after the rod stops, so it cannot brake a moving rod.
Airtac BSAI Locking Clamp Cylinder BSAI63X200 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI63X200 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 200 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G3/8 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 2200 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 (Ø63 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa (max) | 2182 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (2200 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI63X200 Is Used
Vertical Axis Holding
Prevents gravity-driven drops on vertical lifts by clamping the rod securely at any mid-stroke position during power loss.
Machining Position Hold
Locks the workpiece rigidly in place for machining or inspection processes, ensuring no drift without relying on live air pressure.
Emergency Stop Safety
Provides a reliable static hold immediately after the rod stops moving, adding a layer of fall protection to pneumatic actuators.
Is the Airtac BSAI Locking Clamp Cylinder BSAI63X200 the Right Clamp-Lock?
Choose this BSAI63X200 when you need to secure a load mid-stroke, as its clamp-lock holds anywhere along the travel, unlike the SAIL series which only holds at stroke ends. If your application only requires end-of-stroke positioning without intermediate stops, a plain SAI cylinder suffices. If you need to drop down a bore size, the BSAI50X200 offers 982 N thrust at 0.5 MPa and a 1400 N hold; stepping up to the BSAI80X200 provides 2513 N thrust at 0.5 MPa and a 3600 N hold.
For safe operation, the clamp locks only after the cylinder has stopped and must be unlocked with balanced air pressures on both sides of the piston to prevent the rod from jumping abruptly. Safety-critical loads require an additional independent safety measure. This single-rod configuration uses a 3/8 cylinder port and a PT thread type. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. The M16x1.5 rod thread handles side loads well, though external guides are recommended for unsupported lengths. A magnet (-S) can be added for CMSE reed or DMSE electronic sensors.
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 BSAI63X200 FAQ
The BSAI63X200 features a static holding force of 2200 N. The spring-applied clamp locks the rod at any position along the 200 mm stroke, holding bidirectionally, whether the rod was extending or retracting.
The clamp locks only after the cylinder has stopped moving and cannot brake a moving rod. To release it safely, air pressure must be balanced on both sides of the piston via the G1/8 enclasp port; otherwise, the rod can jump abruptly. An additional independent safety measure is required for human safety.
Related AirTAC Lock & Standard Cylinders
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