Airtac BSAID Clamp Cylinder BSAID80X800S
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X800S is a genuine double-acting ISO 15552 cylinder with a Ø80mm 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 3600 N.
- BoreØ80 mm
- Stroke800 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X800S
The AirTAC BSAID80X800-S is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and a built-in spring-applied, air-released clamp-lock. It provides a robust static holding force of 3600 N, gripping the rod securely at any position along its 800 mm travel. Because it is a double-rod design, the thrust is equal in both directions at 2268 N (0.5 MPa), and having a rod extending from both ends allows you to mount a workpiece on one side while attaching a guide, counterweight, or position flag on the opposite end for dual-side anti-rotation.
It is crucial to distinguish between this 3600 N holding force and the cylinder's 2268 N thrust; you must size the clamp against the static load, not the pneumatic push force. Furthermore, the variable air cushions at the stroke ends only decelerate the piston to prevent impact—they do not hold the load. The clamp mechanism relies on a third G1/8 enclasp port, requiring 0.15-0.7 MPa to release. Remember that the lock engages only after the rod has completely stopped; it cannot brake a moving load.
Airtac BSAID Clamp Cylinder BSAID80X800S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X800S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 800 mm |
| Type | Double rod (BSAID), 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 | — |
Equal force both directions (double rod). 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 BSAID Clamp Cylinder BSAID80X800S Is Used
Vertical Z-Axis Holding
Secures a vertically lifted load at any point in the 800 mm travel, preventing drops even if air pressure is lost, while the second rod supports a counterweight.
Mid-Stroke Machining Hold
Locks the part rigidly at a specific intermediate height for a machining or inspection process, ensuring zero unwanted movement during the operation.
Power Failure Safety
The spring-applied clamp engages instantly upon air loss, freezing the double-rod position safely mid-cycle to protect operators and tooling.
Is the Airtac BSAID Clamp Cylinder BSAID80X800S the Right Clamp-Lock?
Step down to a 63 mm bore if your application requires less force (1402 N thrust, 2200 N holding force) to save space and air volume, or step up to a 100 mm bore for heavier loads (3681 N thrust, 5500 N holding force). Choose this BSAID80X800-S over a SAIL model when you need the rod to lock securely at any intermediate position, rather than just holding at the stroke ends. If you only need standard double-acting motion without mid-stroke holding, a plain SAID cylinder is sufficient.
This 80 mm bore model features a 25 mm carbon steel rod with an M20x1.5 thread, offering excellent rigidity and side-load capacity. However, at 800 mm of stroke, the unsupported length is significant; an external guide rail is strongly recommended to prevent rod bending and premature seal wear. For replacements, confirm the double-rod layout, 800 mm stroke, PT port threads, and the correct mounting set. As a double-rod cylinder, it accepts Basic, FA, LB, TC, TCM1, and TCM2 mounts, omitting the FB, CA, CB, and CR options. The -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
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 BSAID80X800S FAQ
The BSAID80X800-S provides a static holding force of 3600 N via the clamp-lock, which is separate from its 2268 N pneumatic thrust (equal in both directions due to the double-rod). The clamp holds the static load, while thrust drives the motion.
The clamp is spring-applied and air-released via a third G1/8 port. It only locks after the cylinder has stopped moving—it cannot brake a moving rod. To unlock safely, the air pressures on both sides of the piston must be balanced, or the rod may jump abruptly.
Related AirTAC Lock & Standard Cylinders
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