Airtac BSAID Clamp Cylinder BSAID40X350
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X350 is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 350mm 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 900 N.
- BoreØ40 mm
- Stroke350 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM12×1.25
- 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 BSAID Clamp Cylinder BSAID40X350
The AirTAC BSAID40X350 is a double-acting ISO 15552 profile cylinder featuring a double-rod construction and a spring-applied, air-released clamp-lock. It provides a static holding force of 900 N, gripping the rod securely at any position along its 350 mm travel. Because it is a double-rod actuator, the thrust is equal in both directions at 528 N (0.5 MPa), and the second rod allows you to mount a position flag, counterweight, or secondary tool on the opposite end for dual-side guidance.
It is crucial to distinguish this 900 N static holding force from the 528 N cylinder thrust: the clamp sustains the stationary load, while pneumatic thrust drives the motion. The clamp utilizes a third G1/8 enclasp port to release the rod, operating within a 0.15-0.7 MPa range. Remember that the variable air cushions only decelerate the piston near stroke ends; the mechanical clamp is the sole device holding the load.
Airtac BSAID Clamp Cylinder BSAID40X350 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X350 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 900 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 800 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 (Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa (max) | 880 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (900 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID40X350 Is Used
Vertical Load Holding
Secures a workpiece at any intermediate height on a vertical axis, preventing gravity-driven drops during operation.
Power Loss Safety
The spring-applied clamp engages automatically upon air loss, freezing the 350 mm stroke exactly where it stopped.
Machining Position Hold
Locks the double-rod payload rigidly in place for machining or inspection, using the second rod for a guide or flag.
Is the Airtac BSAID Clamp Cylinder BSAID40X350 the Right Clamp-Lock?
Choose this 40 mm bore if your application requires 528 N of thrust and 900 N of holding capacity in both directions simultaneously. If your load demands less holding power, the 32 mm bore offers 600 N of holding force and 345 N of thrust; if you need more, step up to the 50 mm bore with 1400 N holding and 825 N thrust. This BSAID model is preferred over a stroke-end-only SAIL lock when you must secure the load at intermediate positions. If you do not need dual-side rod outputs, a plain SAI or single-rod BSAI suffices. Because the stroke is 350 mm, the 16 mm rod and M12x1.25 thread still require external guidance to prevent excessive side loading on the seals. This unit features PT tapered ports and accepts Basic, FA, LB, TC, TCM1, or TCM2 mounts (omitting FB/CA/CB/CR). It lacks a magnet; add the -S option for CMSE reed or 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 BSAID40X350 FAQ
The clamp-lock provides a static holding force of 900 N at any position along the stroke. This is separate from the 528 N pneumatic thrust and engages via spring pressure, holding the load securely without requiring continuous live air pressure.
The clamp locks only after the cylinder has stopped; it cannot brake a moving rod. To unlock it safely via the G1/8 enclasp port, the air pressures on both sides of the piston must be balanced, or the rod may jump abruptly. Human-safety applications require an independent external safety measure.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAID Clamp Cylinder BSAID40X350
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.