This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX140, 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 SI160BX140
The AirTAC SI160 Standard Cylinder SI160BX140 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX140, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX140
- 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 SI160BX140
The AirTAC SI160BX140 is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 140mm stroke. Delivering 10053N push force at 0.5MPa via a G3/4 port, this legacy unit is replaced by the SAI160BX140 direct. It features a SUS304 stainless piston rod (-B) for corrosion resistance, but lacks a magnet so it cannot accept sensors.
The SAI160BX140 matches the exact ISO 15552 mounting interface, force and dimensions. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. For high heat, Viton H seals raise the temperature limit to 150C.
Airtac SI160 Standard Cylinder SI160BX140 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX140 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX140 |
| Bore size | Ø160 mm |
| Stroke | 140 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 SAI160BX140 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 SAI160BX140 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 SI160BX140
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×140 | 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 SI160BX140 Is Used
Heavy Press Operations
Drives large stamping and forming presses requiring high thrust, utilizing the 14074N output at 0.7MPa to shape thick metal plates.
Injection Molding
Actuates substantial clamps and heavy mold cores in plastics manufacturing, benefiting from the SUS304 rod in humid environments.
Replacing the Airtac SI160 Standard Cylinder SI160BX140 with the SAI160BX140
To replace the SI160BX140, order the SAI160BX140. Confirm the ISO 15552 mounting interface, 160mm bore, 140mm stroke, G3/4 port, and M36x2 rod thread. Because this SKU lacks the -S magnet, it cannot support CS1-B/DS1-B sensors; if sensing is needed, specify a magnet on the SAI order. The SUS304 (-B) rod is retained for corrosion resistance. Sizing down, a 125mm bore yields 6136N push at 0.5MPa; sizing up, a 200mm bore yields 15708N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. At 140mm stroke, side-load risks are low, but always guide the load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX140
- ✓ 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 SI160BX140 FAQ
Yes, the SI160BX140 is discontinued. The direct replacement is the SAI160BX140. It shares the identical ISO 15552 mounting interface, 160mm bore, 140mm stroke, force, G3/4 port, and accessories, fitting directly into existing fixtures.
This double-acting cylinder uses a G3/4 air port. It delivers 10053N push and 9425N pull at 0.5MPa, 14074N push at 0.7MPa, 18095N push at 0.9MPa, and a theoretical max of 2050 kgf at 1.0MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX140
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX140 replacement — usually within 7-8 hours.