Airtac BSAI Locking Clamp Cylinder BSAI63X1000
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI63X1000 is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 1000mm 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
- Stroke1000 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 BSAI63X1000
The AirTAC BSAI63X1000 is a double-acting ISO 15552 profile cylinder with a built-in spring-applied, air-released enclasp mechanism that locks the piston rod at any position along its 1000mm stroke. It provides a static holding force of 2200 N, which is entirely separate from the cylinder's 2182 N thrust at 0.7 MPa. You must size the holding force against your static load, not the thrust, because the clamp and the pneumatic thrust are two different quantities. The enclasp mechanism uses a dedicated G1/8 port to release the grip, requiring a balanced air pressure on both sides of the piston to unlock safely.
This model features a 20mm carbon steel piston rod with an M16x1.5 thread. Remember that the variable air cushion at the stroke ends only decelerates the piston; it does not hold the load. The clamp itself is bidirectional, securing the rod whether it was extending or retracting. Because the stroke is 1000mm, an external guide is highly recommended to prevent excessive side-load wear on the rod seals.
Airtac BSAI Locking Clamp Cylinder BSAI63X1000 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI63X1000 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 1000 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 BSAI63X1000 Is Used
Vertical Axis Holding
Locks a 1000mm vertical lift at any intermediate height with 2200 N of force, preventing uncommanded drops during operation.
Power Loss Safety
The spring-applied clamp engages automatically on air loss, freezing the rod safely mid-stroke instead of letting the load crash.
Machining Position Hold
Secures the workpiece at a specific intermediate point for a machining or inspection process, releasing only when air is reapplied.
Is the Airtac BSAI Locking Clamp Cylinder BSAI63X1000 the Right Clamp-Lock?
Choose this 63mm bore when you need 1559 N of thrust at 0.5 MPa and a 2200 N static hold anywhere in the travel. If your load requires less force, the 50mm bore offers 982 N thrust and a 1400 N hold; if you need more stopping power, the 80mm bore provides 2513 N thrust and a 3600 N hold. Select this BSAI model over a SAIL cylinder when you must hold the load mid-stroke rather than only at the stroke end. If you do not need any locking at all, a plain SAI cylinder suffices.
This single-rod version accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. It uses PT tapered ports, with a 3/8 cylinder port and a G1/8 enclasp port. Since no magnet is specified, it will not work with CMSE or DMSE sensors. Note that the clamp locks only after the rod has stopped; it cannot brake a moving rod. Always balance pressures before unlocking to prevent the rod from jumping, and add an independent safety measure for human-safety-critical applications.
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 BSAI63X1000 FAQ
The clamp-lock provides a static holding force of 2200 N. It locks at any position along the 1000mm stroke and holds bidirectionally, but it only engages after the rod has stopped moving.
The clamp uses a G1/8 enclasp 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. It cannot be used to brake a moving rod.
Related AirTAC Lock & Standard Cylinders
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