Airtac BSAID Clamp Cylinder BSAID40X450S
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X450S is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 450mm 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 900 N.
- BoreØ40 mm
- Stroke450 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM12×1.25
- 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 BSAID Clamp Cylinder BSAID40X450S
The AirTAC BSAID40X450-S is a double-acting ISO 15552 profile cylinder featuring a rod extending from both ends and a built-in spring-applied, air-released clamp-lock. It secures the load at any position along its 450mm stroke, delivering a static holding force of 900 N. Because it is a double-rod design, the thrust is equal in both directions at 528 N (0.5 MPa). It is crucial to distinguish this holding force from the cylinder thrust: the 900 N clamp resists an external static load, whereas the 528 N thrust dictates the actuation power. You must size the clamp against the load, not the thrust. A rod out both ends allows mounting a workpiece on one side and a guide or position flag on the other for dual-side anti-rotation. The lock engages only after the piston stops; it cannot brake a moving rod. Unlocking requires balanced air pressure via the G1/8 enclasp port to prevent abrupt rod jumps. The variable air cushion only decelerates the piston near stroke ends and provides no holding force.
Airtac BSAID Clamp Cylinder BSAID40X450S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X450S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 900 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 800 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 (Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa (max) | 880 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (900 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID40X450S Is Used
Vertical Axis Hold
Locks a 900 N load at any intermediate height on a vertical transfer line without relying on continuous air pressure.
Power Loss Safety
Spring-applied clamp secures the double-rod payload instantly when compressed air drops, preventing uncontrolled falls.
Machining Positioning
Holds a dual-sided workpiece rigidly for inspection or drilling, using the second rod for a counterweight or guide.
Is the Airtac BSAID Clamp Cylinder BSAID40X450S the Right Clamp-Lock?
Choose this double-rod clamp-lock model when you need equal push/pull force and intermediate holding. If you only need to hold at stroke ends, a SAIL cylinder suffices. If no lock is needed, a plain SAID is lighter. For higher loads, step up to bore 50 (825 N thrust, 1400 N hold). At 450 mm stroke, the 16 mm carbon steel rod needs external guidance to prevent side-load wear. The PT ported cylinder (1/4 thread) uses Basic, FA, LB, TC, TCM1, or TCM2 mounts (omitting FB/CA/CB/CR). The -S magnet pairs with CMSE reed or DMSE solid-state sensors. Safety-critical holds require an independent backup.
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 BSAID40X450S FAQ
The spring-applied clamp provides a static holding force of 900 N at any stroke position. It is bidirectional and separate from the 528 N actuation thrust.
The clamp unlocks via a G1/8 enclasp port only after the cylinder has stopped and air pressures on both sides of the piston are balanced. Releasing it while moving or unbalanced causes the rod to jump.
Related AirTAC Lock & Standard Cylinders
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