Airtac BSAID Clamp Cylinder BSAID100X50
The AirTAC Airtac BSAID Clamp Cylinder BSAID100X50 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 50mm 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 5500 N.
- BoreØ100 mm
- Stroke50 mm
- Cylinder portG1/2
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID100X50
The AirTAC BSAID100X50 is a double-acting ISO 15552 profile cylinder featuring a double-rod design and an integrated clamp-lock mechanism. A spring-applied, air-released gripper clamps the piston rod to hold the load securely at any position along its 50 mm travel, delivering a static holding force of 5500 N. Because it is a double-rod unit, the thrust is equal in both directions, generating 3681 N of push and pull force at 0.5 MPa. It is crucial to distinguish this 5500 N holding force from the cylinder's 3681 N thrust—the clamp size must match the static load weight, not the pneumatic drive force.
This model features a 25 mm rod and M20x1.5 rod thread on both ends, providing robust resistance against side loads. The clamp mechanism requires a third G1/8 enclasp port (separate from the 1/2 cylinder ports) to release the rod at 0.15-0.7 MPa. The variable air cushions only decelerate the piston near the stroke ends; they do not hold the load. Furthermore, the double-rod configuration allows you to mount a workpiece on one end and a guide or counterweight on the opposite end for dual-side anti-rotation.
Airtac BSAID Clamp Cylinder BSAID100X50 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID100X50 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/2 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 5500 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 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 (Ø100 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa (max) | 5498 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (5500 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID100X50 Is Used
Machining Fixtures
Holds a workpiece stationary at any point in the 50 mm travel during drilling or milling, using the 5500 N clamp to resist cutting forces without live air pressure.
Vertical Load Holding
Prevents a 3681 N dual-sided load from dropping when air pressure drops, locking the rod instantly once the cylinder stops moving.
Emergency Stop Safety
Secures the equal-force double-rod mechanism mid-stroke during a power loss, though an independent safety measure is required for human safety.
Is the Airtac BSAID Clamp Cylinder BSAID100X50 the Right Clamp-Lock?
Choose this BSAID100X50 when an application demands equal force in both directions plus mid-stroke holding, such as a machining fixture requiring a second guide rod. If you do not need a rod extending from both ends, the single-rod BSAI100X50 offers the same 5500 N holding force but with standard push/pull thrust asymmetry. For lighter vertical loads, stepping down to a 80 mm bore reduces the holding force to 3600 N and pull thrust to 2268 N at 0.5 MPa.
Remember that the clamp locks only after the cylinder has stopped; it cannot brake a moving rod. The lock must be released with balanced air pressures on both sides of the piston, or the rod may jump abruptly. For safety-critical human-interaction loads, install an independent external safety measure. This cylinder uses PT ports, accepts Basic, FA, LB, TC, TCM1, and TCM2 mounts (omitting FB, CA, CB, CR), and operates at 30-500 mm/s. No magnet is specified for this configuration, so CMSE reed or DMSE electronic sensors cannot be used without modification.
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 BSAID100X50 FAQ
The 5500 N static holding force is the mechanical clamp's capacity to hold a stopped load at any position, which is separate from the 3681 N pneumatic thrust the cylinder generates at 0.5 MPa to move the load.
The clamp locks only after the rod has stopped moving and cannot brake a moving load. To unlock it safely, you must balance the air pressure on both sides of the piston via the G1/8 enclasp port; otherwise, the rod may jump abruptly.
Related AirTAC Lock & Standard Cylinders
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