Airtac BSAI Locking Clamp Cylinder BSAI80X600
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI80X600 is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 600mm 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 3600 N.
- BoreØ80 mm
- Stroke600 mm
- Cylinder portG3/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
- 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 BSAI80X600
The AirTAC BSAI80X600 is a double-acting ISO 15552 profile cylinder featuring an integrated spring-applied, air-released clamp-lock. It secures the 25mm carbon steel piston rod at any point along its 600mm travel, delivering a static holding force of 3600 N. Operating within a 0.15-0.7 MPa range, it generates 2513 N of thrust at 0.5 MPa. It is crucial to distinguish this holding force from the cylinder thrust: the 3600 N rating is the clamp's grip on the rod to prevent drift, entirely separate from the pneumatic pushing power.
This enclasp mechanism is bidirectional, maintaining the load whether the rod was extending or retracting. Remember that the variable air cushion at the stroke ends only decelerates the piston; it does not hold the load. The clamp requires a third G1/8 unlock port and only engages after the rod has completely stopped, as it cannot brake a moving load. Release requires balanced air pressure on both piston sides to prevent the rod from jumping abruptly.
Airtac BSAI Locking Clamp Cylinder BSAI80X600 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI80X600 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 600 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 3600 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 (Ø80 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (3600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI80X600 Is Used
Vertical Axis Holding
Prevents gravity-driven drops on vertical lifts by clamping the rod securely at any intermediate height during operation.
Power Loss Safety
Spring-applied engagement instantly secures the 600mm stroke position during a pneumatic or electrical power failure.
Machining Position Lock
Freezes the workpiece at a precise intermediate point for drilling or inspection without relying on continuous air pressure.
Is the Airtac BSAI Locking Clamp Cylinder BSAI80X600 the Right Clamp-Lock?
Choose this 80mm bore model when an application demands mid-stroke load holding that a plain SAI cylinder cannot provide, or when a SAIL stroke-end lock is insufficient. If your load requires less holding capacity, the 63mm bore offers 1402 N thrust at 0.5 MPa and a 2200 N clamp grip. The BSAI80X600 uses PT tapered port threads and accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. Because this is a non-magnet variant, position sensing via CMSE reed or DMSE solid-state switches is not supported without modification.
With a 600mm stroke, the unsupported rod length is substantial; always use an external guide to prevent side-load damage, even with the robust M20x1.5 rod thread. For safety-critical operations, note that the clamp locks only after the cylinder stops and cannot serve as an emergency brake. An additional independent safety measure is required if human safety depends on the hold.
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 BSAI80X600 FAQ
The static holding force is 3600 N. The clamp locks the rod at any position but only AFTER the cylinder has stopped; it cannot brake a moving rod.
The clamp unlocks via a third G1/8 port, requiring balanced air pressure on both piston sides to prevent abrupt rod movement. Unlike SAIL cylinders that only hold at stroke ends, this BSAI model locks anywhere along the 600mm travel.
Related AirTAC Lock & Standard Cylinders
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