Airtac BSAID Clamp Cylinder BSAID125X700S
The AirTAC Airtac BSAID Clamp Cylinder BSAID125X700S is a genuine double-acting ISO 15552 cylinder with a Ø125mm bore, 700mm 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 8600 N.
- BoreØ125 mm
- Stroke700 mm
- Cylinder portG1/2
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM27×2
About the Airtac BSAID Clamp Cylinder BSAID125X700S
The AirTAC BSAID125X700-S is a double-acting ISO 15552 profile cylinder featuring a double-rod design and a spring-applied, air-released clamp-lock mechanism. It secures the load at any position along its 700mm stroke, delivering a static holding force of 8600 N. Because it is a double-rod unit, the thrust is equal in both directions at 5734 N (0.5 MPa), and the extending rod from both end caps allows you to mount a workpiece on one end and a counterweight or position flag on the other for dual-side guidance.
It is vital to distinguish the 8600 N holding force from the cylinder thrust; the clamp resists the static load, whereas thrust moves it. The lock engages only after the piston stops, meaning it cannot brake a moving rod. Release requires balanced air pressure on both sides via the G1/8 enclasp port, or the rod may jump abruptly. The variable air cushion only decelerates the piston near stroke ends; the clamp is what actually holds the load.
Airtac BSAID Clamp Cylinder BSAID125X700S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID125X700S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 700 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/2 |
| Rod thread | M27×2 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 8600 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 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 (Ø125 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa (max) | 8590 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (8600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID125X700S Is Used
Vertical Axis Load Holding
Maintains heavy vertical loads at any mid-stroke height with 8600 N of holding force, preventing drops during air loss.
Machining Safety Barrier
Locks the extended dual rods instantly upon cylinder stop, securing large workpieces or fixtures during machining cycles.
Dual-Side Inspection Station
Uses the second rod end to mount a position flag while the primary end holds the part, ensuring precise mid-stroke inspection.
Is the Airtac BSAID Clamp Cylinder BSAID125X700S the Right Clamp-Lock?
Choose this 125 mm bore when a 100 mm bore (3681 N pull thrust, 5500 N holding) lacks the required clamping or pulling capacity. A plain SAID125 suffices if mid-stroke holding is unnecessary, while a SAIL125 only locks at stroke ends. The BSAID125X700-S is ideal when true mid-travel security is mandatory.
This model includes a -S magnet for AirTAC CMSE reed and DMSE electronic sensors. It uses PT tapered ports (1/2 cylinder, G1/8 enclasp) and accepts Basic, FA, LB, TC, TCM1, and TCM2 mounts (omitting FB/CA/CB/CR). The 32 mm rod and M27x2 thread handle high side loads, but at 700 mm stroke, an external guide is strongly recommended. Remember: the lock holds only after stopping, and safety-critical applications need an independent backup measure.
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 BSAID125X700S FAQ
The static holding force is 8600 N. The bidirectional clamp locks the rod at any position along the stroke, but only after the cylinder has completely stopped moving.
The clamp releases only when air pressure is balanced on both piston sides via the G1/8 port; unbalanced pressure causes abrupt rod movement. The double-rod design provides equal 5734 N thrust both ways and allows dual-side mounting.
Related AirTAC Lock & Standard Cylinders
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