Airtac BSAID Clamp Cylinder BSAID50X80S
The AirTAC Airtac BSAID Clamp Cylinder BSAID50X80S is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 80mm 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 1400 N.
- BoreØ50 mm
- Stroke80 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID50X80S
The AirTAC BSAID50X80-S is a double-acting ISO 15552 profile cylinder featuring a rod extending from both ends and an integrated spring-applied, air-released clamp-lock. It delivers a bidirectional thrust of 825N at 0.5 MPa, meaning the force is identical whether extending or retracting. A defining feature is its ability to hold a static load at any position along the 80mm stroke with a documented holding force of 1400N. Buyers must distinguish this holding force from the cylinder thrust; the clamp resists external loads independently of the 825N drive force.
This enclasp mechanism engages only after the piston has stopped, serving as a position hold rather than a dynamic brake. It requires a third G1/8 unlock port and balanced air pressure on both sides of the piston to release safely. The double-rod design is specifically chosen to mount a workpiece on one end and a guide or position flag on the other, providing dual-side anti-rotation. The included -S magnet works with CMSE reed and DMSE electronic sensors, while the variable air cushion decelerates the piston near stroke ends without holding the load.
Airtac BSAID Clamp Cylinder BSAID50X80S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID50X80S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 80 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 1400 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 (Ø50 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa (max) | 1374 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (1400 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID50X80S Is Used
Vertical Lift Holding
Holds a raised load at any intermediate height with 1400N of force, preventing drops during air pressure loss without relying on stroke-end stops.
Machining Position Lock
Secures a dual-sided workpiece fixture rigidly during drilling or milling, using the second rod end for an external guide to prevent rotation.
Emergency Mid-Travel Arrest
Provides a reliable hold anywhere in the 80mm stroke if power fails, engaging only after motion stops to freeze the load safely.
Is the Airtac BSAID Clamp Cylinder BSAID50X80S the Right Clamp-Lock?
Choose this 50mm bore when an application requires equal push/pull force and mid-stroke holding, stepping up from a 40mm bore (528N thrust, 900N holding force) if more stability is needed. The BSAID50X80-S beats a SAIL stroke-end lock by clamping anywhere along the travel, whereas a plain SAID suffices if holding is unnecessary. Because the clamp locks only after the rod stops, safety-critical loads need an independent measure. This double-rod version omits the FB, CA, CB, and CR mounts, accepting only Basic, FA, LB, TC, TCM1, and TCM2 brackets. The 20mm carbon steel rod with an M16x1.5 thread handles side loads well, and the PT port threads match the 1/4 cylinder ports.
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 BSAID50X80S FAQ
The integrated clamp-lock provides a static holding force of 1400N. It locks the rod at any position along the stroke bidirectionally, but only engages after the cylinder has stopped moving.
The clamp uses a third G1/8 port and requires balanced air pressure on both sides of the piston to unlock. If pressures are not balanced, the rod can jump abruptly upon release.
Related AirTAC Lock & Standard Cylinders
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