Airtac BSAI Locking Clamp Cylinder BSAI63X150S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI63X150S is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 150mm 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
- Stroke150 mm
- Cylinder portG3/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM16×1.5
- 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 BSAI Locking Clamp Cylinder BSAI63X150S
The AirTAC BSAI63X150-S is a double-acting ISO 15552 profile cylinder with a built-in spring-applied, air-released clamp-lock. It secures the carbon steel piston rod at any point along its 150 mm travel, delivering a static holding force of 2200 N. Because the bore generates 1559 N of push thrust at 0.5 MPa, you must recognize that holding force and thrust are distinct quantities; always size the clamp's 2200 N capacity against your static load rather than the cylinder's propulsion power.
This unit includes a -S magnet for position sensing via CMSE reed or DMSE electronic switches. The locking mechanism requires a third G1/8 enclasp port alongside the standard 3/8 cylinder ports. Remember that the variable air cushions only decelerate the piston near stroke ends, whereas the clamp is the true load-holding device.
Airtac BSAI Locking Clamp Cylinder BSAI63X150S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI63X150S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 150 mm |
| Type | Single rod (BSAI), 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 | — |
Push/pull as tabulated. 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 BSAI Locking Clamp Cylinder BSAI63X150S Is Used
Vertical Axis Hold
Prevents gravity-driven drops on vertical strokes by clamping the rod securely at any intermediate position during an air pressure loss.
Mid-Stroke Machining
Holds a workpiece rigidly at a custom position for machining or inspection without relying on stroke-end cushions.
Emergency Safety Stop
Provides a fail-safe hold immediately after the cylinder stops moving, ensuring the load remains fixed during a power outage.
Is the Airtac BSAI Locking Clamp Cylinder BSAI63X150S the Right Clamp-Lock?
Select this 63 mm bore if your load requires up to 2200 N of static hold mid-stroke; step down to a 50 mm bore for 1400 N holding force and 982 N thrust, or up to an 80 mm bore for 3600 N hold. Choose this BSAI over a SAIL model when you need to lock anywhere along the travel rather than just at the stroke end, or pick a plain SAI if no mid-stroke holding is required.
This single-rod configuration accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. The M16x1.5 rod thread handles side loads well, but for any stroke over 300 mm, add an external guide. The clamp locks only after the rod stops, so it cannot brake a moving load. Always balance air pressure on both sides via the G1/8 unlock port before releasing to prevent abrupt rod jumps, and add independent safety measures for human-safety-critical holds.
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 BSAI Locking Clamp Cylinder BSAI63X150S FAQ
The clamp-lock provides a static holding force of 2200 N. It uses a spring-applied, air-released mechanism to grip the rod bidirectionally at any position along the stroke.
The clamp unlocks only after the cylinder has stopped and air pressures on both sides of the piston are balanced via the G1/8 enclasp port. If pressures are unbalanced, the rod can move abruptly upon release.
Related AirTAC Lock & Standard Cylinders
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