Airtac BSAID Clamp Cylinder BSAID40X500
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X500 is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 500mm 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
- Stroke500 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 BSAID40X500
The AirTAC BSAID40X500 is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It delivers a bidirectional holding force of 900 N at any position along its 500 mm travel. Because it is a double-rod actuator, thrust is equal in both directions at 528 N (0.5 MPa), and the extending rod from the rear end is ideal for mounting a position flag, guide, or secondary tool. It is crucial to distinguish this 900 N static holding force from the 528 N thrust—the clamp secures the static load, while thrust dictates movement.
This enclasp unit requires a third G1/8 unlock port alongside the 1/4 cylinder ports, operating within a 0.15-0.7 MPa range. The clamp mechanism is not a substitute for the variable air cushions, which only decelerate the piston near stroke ends. Locking engages solely after the rod has completely stopped, and releasing requires balanced air pressure to prevent abrupt shifting.
Airtac BSAID Clamp Cylinder BSAID40X500 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X500 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 BSAID40X500 Is Used
Vertical Lift Holding
Secures a vertical workpiece at any point in the 500 mm travel, preventing gravity-driven drops during air pressure loss.
Machining Position Lock
Holds a dual-sided machined part perfectly stationary against cutting forces using the 900 N clamp force.
Dual-Tool Transfer
Uses the second rod end for a counterweight or secondary gripper while locking the assembly mid-stroke for loading.
Is the Airtac BSAID Clamp Cylinder BSAID40X500 the Right Clamp-Lock?
Choose this BSAID40X500 when an application demands mid-stroke holding on a double-rod axis. If 528 N of thrust is insufficient, step up to the BSAID50X500, which offers 825 N thrust and a 1400 N hold. If the load only needs securing at the stroke ends, a plain SAI or SAIL cylinder suffices, but BSAI/BSAID provides true lock-anywhere security. The 16 mm carbon steel rod with an M12x1.25 thread handles side loads well, but at 500 mm stroke, an external guide is strongly recommended to prevent binding.
For replacements, confirm the double-rod layout, 40 mm bore, 500 mm stroke, and PT tapered ports. The BSAID mounting set omits FB, CA, CB, and CR brackets, accepting only Basic, FA, LB, TC, TCM1, and TCM2. Note that without the -S magnet option, CMSE reed and DMSE solid-state sensors cannot be used. Remember that the clamp locks only after stopping and is not a dynamic brake; safety-critical applications require 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 BSAID40X500 FAQ
The spring-applied clamp provides a static holding force of 900 N. It locks the double-rod at any position bidirectionally, but only after the piston has stopped moving.
Air pressure must be balanced on both sides of the piston before supplying the G1/8 unlock port. If pressures are unbalanced during release, the rod can jump abruptly. The lock is not a dynamic brake.
Related AirTAC Lock & Standard Cylinders
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