Airtac BSAID Clamp Cylinder BSAID50X800
The AirTAC Airtac BSAID Clamp Cylinder BSAID50X800 is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 800mm 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
- Stroke800 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID50X800
The AirTAC BSAID50X800 is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and an integrated spring-applied, air-released clamp-lock. It provides a static holding force of 1400 N at any position along its 800 mm stroke. Because it is a double-rod actuator, the thrust is equal in both directions at 825 N (0.5 MPa), and the extending rod from both ends allows you to mount a workpiece on one side and a guide or counterweight on the other for dual-side anti-rotation.
It is crucial to distinguish this 1400 N holding force from the cylinder's 825 N dynamic thrust—size the clamp against the static load, not the push/pull force. Furthermore, the variable air cushions at the stroke ends only decelerate the piston; the mechanical clamp is what actually secures the load. The clamp engages via a separate G1/8 enclasp port and requires a balanced air pressure to unlock safely, preventing the rod from jumping abruptly upon release.
Airtac BSAID Clamp Cylinder BSAID50X800 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID50X800 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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 BSAID50X800 Is Used
Vertical Z-Axis Holding
Secures a vertically lifted load at any mid-stroke height with 1400 N of holding force, preventing sudden drops during a power loss.
Machining Position Lock
Holds a dual-sided workpiece fixture rigidly in place for machining or inspection, using the second rod for an anti-rotation guide.
Long-Travel Emergency Stop
Provides a reliable mechanical hold across an 800 mm travel range when the pneumatic air supply is removed mid-cycle.
Is the Airtac BSAID Clamp Cylinder BSAID50X800 the Right Clamp-Lock?
Choose this double-rod model when you need equal push/pull force and dual-side guidance over a long 800 mm travel. If you do not need the second rod for external mounting or anti-rotation, a plain BSAI50X800 single-rod clamp-lock provides the same 1400 N hold. For higher load capacity, stepping up to a 63 mm bore increases the holding force to 2200 N and thrust to 1402 N. At 800 mm of stroke, the 20 mm carbon steel rod and M16x1.5 thread provide good side-load capacity, but an external guide is still recommended to prevent binding.
This clamp locks only after the cylinder has stopped; it cannot brake a moving rod. Safety-critical applications must use an additional independent safety measure. Replacement requires a double-rod 50 mm bore, 800 mm stroke, PT ported cylinder with the correct mounting set (Basic, FA, LB, TC, TCM1, TCM2). Note that this unit lacks a magnet; add an -S suffix if CMSE reed or DMSE electronic sensors are needed for position feedback.
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 BSAID50X800 FAQ
The clamp-lock provides a static holding force of 1400 N. It engages via a spring mechanism and holds the load at any position along the 800 mm stroke, operating bidirectionally.
The clamp is released by applying air to the G1/8 enclasp port, but only after the air pressures on both sides of the piston are balanced. If pressures are not balanced, the rod can move abruptly upon release.
Related AirTAC Lock & Standard Cylinders
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