This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX240S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI160 Standard Cylinder SI160BX240S
The AirTAC SI160 Standard Cylinder SI160BX240S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 240mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX240S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX240S
- 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 SI160 Standard Cylinder SI160BX240S
The AirTAC SI160BX240S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 240 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a SUS304 stainless steel rod and a built-in magnet for CS1-B/DS1-B sensors. AirTAC replaced this EOL unit with the SAI160BX240S.
The SAI160BX240S is a direct replacement retaining the exact ISO 15552 mounting interface, G3/4 port, and 2050 kgf max force. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure.
Airtac SI160 Standard Cylinder SI160BX240S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX240S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX240S |
| Bore size | Ø160 mm |
| Stroke | 240 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160BX240S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160BX240S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160BX240S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×240 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI160 Standard Cylinder SI160BX240S Is Used
Heavy Press Clamping
Generates 14074 N of push force at 0.7 MPa to secure large metal castings during machining operations.
Injection Mold Ejection
Uses the SUS304 stainless rod to eject heavy molded parts cleanly, resisting moisture and corrosion on the factory floor.
Replacing the Airtac SI160 Standard Cylinder SI160BX240S with the SAI160BX240S
To replace the SI160BX240S, order the SAI160BX240S. It drops into existing fixtures via the identical ISO 15552 mounting interface, matching the 160 mm bore, 240 mm stroke, M36x2 thread, and G3/4 port. Confirm your mounting accessory (like TC trunnion or LB foot) and the -S magnet requirement for current AirTAC switches. If you need higher force, the 200 mm bore offers 15708 N push at 0.5 MPa; if lower force is acceptable, the 125 mm bore provides 6136 N. Because this is a plain double-acting cylinder, it will not hold a load without live air—the 50 mm cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. Since the stroke is under 300 mm, severe rod-bending side loads are less critical, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX240S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160BX240S FAQ
Yes, the SI160BX240S is discontinued. The direct replacement is the SAI160BX240S. It shares the identical ISO 15552 mounting interface, 160 mm bore, 240 mm stroke, G3/4 port, and output force, fitting existing fixtures perfectly.
This double-acting cylinder features a G3/4 air port. At 0.5 MPa it provides 10053 N push and 9425 pull force. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX240S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX240S replacement — usually within 7-8 hours.