This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX150, 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 SI160BX150
The AirTAC Airtac SI160 Standard Cylinder SI160BX150 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX150, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX150
- 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 SI160BX150
The AirTAC SI160BX150 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 150 mm stroke. Built with an extruded aluminum barrel and a SUS304 stainless steel piston rod, it delivers 10053 N of push force at 0.5 MPa. AirTAC replaced this end-of-life unit with the SAI160BX150, a direct replacement retaining the exact ISO 15552 mounting interface, G3/4 port, and 18095 N output at 0.9 MPa.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and cannot accept position sensors; legacy CS1-B/DS1-B switches only fit magnetized versions.
Airtac SI160 Standard Cylinder SI160BX150 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX150 |
| Bore size | Ø160 mm |
| Stroke | 150 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 SAI160BX150 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 SAI160BX150 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 SI160BX150
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×150 | 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 SI160BX150 Is Used
Heavy Stamping Press
Drives large platens and heavy dies using 10053 N of thrust at 0.5 MPa, relying on the 50 mm adjustable cushions to absorb impact.
Automated Welding Fixture
Clamps heavy structural steel components securely in place using the robust SUS304 stainless rod for corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160BX150 with the SAI160BX150
To replace the SI160BX150, order the SAI160BX150. Verify your ISO 15552 mounting accessories (LB, FA, TC, etc.) and confirm the G3/4 air port. Because this non-magnetized SKU cannot host sensors, if position detection is needed you must select an SAI160BX150-S model and use current AirTAC switches. For sizing, the 160 mm bore yields 10053 N push at 0.5 MPa; if less force is required, the 125 mm bore offers 6136 N. If you need higher force, the 200 mm bore provides 15708 N. A plain cylinder does not hold load on air loss—the cushion only decelerates—so for suspended loads use an external pilot check valve or the SAIL/BSAI lock variants. The 150 mm stroke is well within standard limits, so no special side-load guidance is required.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX150
- ✓ 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 SI160BX150 FAQ
Yes, the SI160BX150 is discontinued. The direct replacement is the SAI160BX150. It shares the same ISO 15552 mounting interface, 160 mm bore, 150 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
This double-acting cylinder uses a G3/4 air port. It generates 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX150
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX150 replacement — usually within 7-8 hours.