This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX230S, 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 SI160BX230S
The AirTAC SI160 Standard Cylinder SI160BX230S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 230mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX230S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke230 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX230S
- 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 SI160BX230S
The AirTAC SI160BX230S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 230 mm stroke. It delivers a 10053 N push force at 0.5 MPa. The direct replacement is the SAI160BX230S, matching the exact ISO 15552 mounting interface, stroke, force, G3/4 port and accessories. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This unit has a -B SUS304 stainless steel rod and a -S magnet for CS1-B/DS1-B switches.
The SAI family also introduces variants the SI lacked, such as the SAIL air-released lock and BSAI clamp-lock for secure holding. Furthermore, a Viton H seal option expands the operating temperature from -20 to +70 C up to 0-150 C.
Airtac SI160 Standard Cylinder SI160BX230S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX230S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX230S |
| Bore size | Ø160 mm |
| Stroke | 230 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 SAI160BX230S 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 SAI160BX230S 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 SI160BX230S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×230 | 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 SI160BX230S Is Used
Heavy Machinery Forming
Drives large forming presses and heavy-duty industrial machinery requiring a massive 10053 N push force at 0.5 MPa with stable 230 mm travel.
Corrosive Fluid Handling
Operates valve mechanisms in washdown or chemical environments utilizing the -B SUS304 stainless steel rod for maximum corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160BX230S with the SAI160BX230S
To replace the SI160BX230S, order the SAI160BX230S. Verify the ISO 15552 mounting interface, 160 mm bore, 230 mm stroke, G3/4 port, and M36x2 rod thread. Retain the -B SUS304 stainless rod and -S magnet (which uses legacy CS1-B/DS1-B sensors; the SAI uses current AirTAC switches). For sizing alternatives, consider neighbouring bores: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. Note that a plain cylinder does not hold load without live air; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Since the 230 mm stroke is under 300 mm, rod bending is less critical, but always ensure guide alignment to prevent side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX230S
- ✓ 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 SI160BX230S FAQ
Yes, the SI160BX230S is discontinued. The direct replacement is the SAI160BX230S. It is dimensionally interchangeable per ISO 15552, offering the same 160 mm bore, 230 mm stroke, output force, G3/4 port, and mounting interface.
The G3/4 port delivers a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa the push force is 14074 N, and the theoretical maximum is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX230S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX230S replacement — usually within 7-8 hours.