Airtac BSAID Clamp Cylinder BSAID63X350S
The AirTAC Airtac BSAID Clamp Cylinder BSAID63X350S is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 350mm 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
- Stroke350 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID63X350S
The AirTAC BSAID63X350-S is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and a spring-applied, air-released clamp-lock mechanism. A rod extends from both ends, allowing you to mount a workpiece on one side and a guide, counterweight, or position flag on the other for dual-side guidance and anti-rotation. The integrated enclasp gripper locks the piston rod at any position along the 350mm travel, delivering a static holding force of 2200 N. Because it is a double-rod unit, the thrust is equal in both directions at 1402 N (0.5 MPa).
It is crucial to distinguish this holding force from the cylinder thrust: the 2200 N clamp rating is the static load capacity of the brake, entirely separate from the 1402 N motive force that moves the load. Furthermore, the variable air cushions at both ends only decelerate the piston near stroke limits; they do not hold the load. The clamp requires a third G1/8 enclasp port for release and operates within a 0.15-0.7 MPa range, needing balanced pressures to unlock safely without jumping.
Airtac BSAID Clamp Cylinder BSAID63X350S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID63X350S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 mm |
| Type | Double rod (BSAID), 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 | — |
Equal force both directions (double rod). 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 BSAID Clamp Cylinder BSAID63X350S Is Used
Vertical Axis Mid-Stroke Hold
Locks a 63mm double-rod payload at any elevation along a 350mm vertical lift, holding 2200 N without relying on continuous air pressure.
Dual-Side Machining Fixture
Uses the second rod for a position flag while the clamp secures the part at a custom machining height, ensuring zero drift during the operation.
Emergency Power-Loss Stop
The spring-applied enclasp engages instantly anywhere in the 350mm travel during a pressure drop, freezing the load until balanced air safely releases it.
Is the Airtac BSAID Clamp Cylinder BSAID63X350S the Right Clamp-Lock?
Select the 63mm bore when a project demands substantial mid-stroke holding, stepping up from a 50mm bore that offers 825 N pull thrust and 1400 N holding force. If locking is only required at the stroke ends, a plain SAIL unit suffices, but the BSAID is chosen for its bidirectional, lock-anywhere capability. For replacement matching, verify the double-rod configuration, 350mm stroke, PT tapered ports (3/8 cylinder port, G1/8 enclasp port), and the -S magnet for CMSE reed or DMSE electronic sensors. The BSAID mounting set omits FB, CA, CB, and CR brackets, supporting only Basic, FA, LB, TC, TCM1, and TCM2 styles.
Since the 350mm stroke is relatively long, the 20mm rod diameter and M16x1.5 thread provide rigidity, but an external guide is still recommended to handle side loads. Always remember the clamp locks only after the rod has completely stopped; it cannot brake a moving load. Safety-critical applications require an independent backup measure, and the cylinder must be unlocked with balanced air pressures to prevent abrupt rod movement.
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 BSAID Clamp Cylinder BSAID63X350S FAQ
The integrated clamp-lock provides a static holding force of 2200 N. It locks the rod at any position along the 350mm stroke and holds bidirectionally, but it only engages after the cylinder has stopped moving.
The clamp is released via a third G1/8 enclasp port. You must balance the air pressures on both sides of the piston before unlocking; otherwise, the rod can jump abruptly. The clamp is a holding brake, not a dynamic stopping brake.
Related AirTAC Lock & Standard Cylinders
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