Airtac BSAI Locking Clamp Cylinder BSAI32X75
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X75 is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 75mm 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 600 N.
- BoreØ32 mm
- Stroke75 mm
- Cylinder portG1/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM10×1.25
- 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 BSAI32X75
The AirTAC BSAI32X75 is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It secures the piston rod at any position along its 75mm travel, providing a static holding force of 600 N. Operating within a 0.15-0.7 MPa pressure range, it delivers 402 N of thrust at 0.5 MPa. It is crucial to distinguish this holding force from the thrust: you must size the 600 N clamp capacity against your static load, not the cylinder's horizontal push power.
Unlike standard air cushions that merely decelerate the piston near the end caps, this clamp physically grips the rod to prevent drift. The mechanism requires a third G1/8 enclasp port to release the lock, which must be supplied with balanced air pressure to prevent the rod from jumping abruptly upon release. Furthermore, the clamp only engages after the rod has completely stopped; it cannot brake a moving load.
Airtac BSAI Locking Clamp Cylinder BSAI32X75 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X75 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/8 |
| Rod thread | M10×1.25 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 600 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 700 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 (Ø32 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa (max) | 563 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI32X75 Is Used
Vertical Axis Hold
Prevents gravity-driven drops on vertical lifts by clamping the rod at any intermediate stroke position during a power loss.
Machining Position Lock
Secures a workpiece or fixture at a specific non-end stroke point for precise drilling or inspection without relying on air pressure.
Emergency Stop Safety
Holds the load steady when the machine e-stop is engaged, provided the cylinder has already ceased motion before the clamp engages.
Is the Airtac BSAI Locking Clamp Cylinder BSAI32X75 the Right Clamp-Lock?
Choose this 32mm bore when you need intermediate positioning holds that a stroke-end-only SAIL cylinder cannot provide. If your application requires less holding capacity, dropping to a smaller bore is not an option within this series, but stepping up to a 40mm bore increases the holding force to 900 N and thrust to 628 N at 0.5 MPa. If position holding is entirely unnecessary, a plain SAI cylinder suffices. Always ensure the load has stopped before clamping, and apply balanced pressure to unlock safely. For safety-critical vertical loads, add an independent mechanical restraint.
This BSAI32X75 configuration features a single carbon steel rod with an M10x1.25 thread, PT tapered ports (1/8 cylinder port plus the G1/8 unlock port), and no magnet. It supports ISO 15552 mounting interfaces including Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2. The 12mm rod diameter offers moderate side-load resistance, though external guidance is recommended for any offset loads.
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 BSAI32X75 FAQ
The clamp-lock provides a static holding force of 600 N. It can hold the load at any position along the stroke, but it only engages after the rod has stopped moving and cannot act as a brake.
The lock is spring-applied and air-released via a separate G1/8 enclasp port. To prevent the rod from jumping, it must be unlocked only when the air pressures on both sides of the piston are balanced or the cylinder has stopped.
Related AirTAC Lock & Standard Cylinders
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