This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX150S, 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 SI160AX150S
The AirTAC SI160 Standard Cylinder SI160AX150S 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 SAI160AX150S, 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 → SAI160AX150S
- 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 SI160AX150S
The AirTAC SI160AX150S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 150 mm stroke. It delivers a robust 10053 N push force at 0.5 MPa through its G3/4 port. The direct replacement is the SAI160AX150S, retaining the same interface, force, and mounting. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity, while the SAI family adds SAIL lock, SAIF valve, and BSAI clamp-lock variants the SI lacked.
This specific unit includes the -A SUS420J2 stainless piston rod for corrosion resistance and the -S magnet for legacy CS1-B/DS1-B switches (the SAI uses current AirTAC switches). Note that a plain cylinder drifts on air loss; the cushion only decelerates, so use an external rod lock or pilot check valve for load holding.
Airtac SI160 Standard Cylinder SI160AX150S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX150S |
| 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 SAI160AX150S 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 SAI160AX150S 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 SI160AX150S
| 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 SI160AX150S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping and forming dies requiring high thrust, utilizing the 10053 N push force at 0.5 MPa.
Automated Assembly Fixture
Actuates large industrial clamps and heavy fixture components in automated automotive assembly lines.
Replacing the Airtac SI160 Standard Cylinder SI160AX150S with the SAI160AX150S
To replace the discontinued SI160AX150S, order the SAI160AX150S. Confirm the ISO 15552 mounting interface, 160 mm bore, 150 mm stroke, G3/4 port, and your specific mounting accessory. The -S magnet enables position sensing, and the -A rod specifies SUS420J2 stainless steel. For sizing down, a 125 mm bore yields 6136 N push at 0.5 MPa; sizing up to 200 mm provides 15708 N. Remember that a standard cylinder does not hold load without live air—the cushion only decelerates. For load holding, consider the SAIL or BSAI lock variants, or an external pilot check valve. Since the stroke is 150 mm, side-load and rod-bending risks are minimal, but always ensure proper guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX150S
- ✓ 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 SI160AX150S FAQ
Yes, the SI160AX150S is discontinued. The direct replacement is the SAI160AX150S. It is dimensionally interchangeable per ISO 15552, matching the bore, stroke, force, G3/4 port, and mounting fixtures exactly.
It delivers 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 max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX150S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX150S replacement — usually within 7-8 hours.