This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX150, 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 SI160AX150
The AirTAC SI160 Standard Cylinder SI160AX150 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 SAI160AX150, 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 → SAI160AX150
- 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 SI160AX150
The AirTAC SI160AX150 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 150 mm stroke. It delivers 10053 N push and 9425 N pull force at 0.5 MPa, utilizing a G3/4 air port and an M36x2 rod thread. The direct replacement is the SAI160AX150, which preserves the original ISO 15552 mounting interface, bore, stroke, output force, and port size for seamless fixture integration.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent from the SI line. Note this specific SKU lacks a magnet (-S) and cannot support sensing, though legacy SI sensors were CS1-B/DS1-B.
Airtac SI160 Standard Cylinder SI160AX150 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX150 |
| 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 SAI160AX150 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 SAI160AX150 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 SI160AX150
| 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 SI160AX150 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies with 10053 N push force at 0.5 MPa, utilizing the robust 40 mm piston rod for high-impact metal forming.
Automotive Assembly Jig
Actuates large body panel clamps on automotive welding lines, where the SUS420J2 stainless rod provides necessary resistance to weld spatter and shop floor moisture.
Replacing the Airtac SI160 Standard Cylinder SI160AX150 with the SAI160AX150
To replace the discontinued SI160AX150, order the SAI160AX150, confirming the ISO 15552 mounting interface, 150 mm stroke, G3/4 port (PT/G/NPT thread options), and mounting accessory. This SKU features an SUS420J2 stainless steel rod (option A) for corrosion resistance but has no magnet, meaning it cannot accept a sensor switch. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant. At 150 mm stroke, rod bending is minimal, but for any stroke >=300 mm, add a guide to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX150
- ✓ 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 SI160AX150 FAQ
Yes, the AirTAC SI160AX150 is discontinued and end-of-life. The direct replacement is the SAI160AX150. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 150 mm stroke, output force, G3/4 port, and mounting interface to fit existing fixtures directly.
This double-acting cylinder features a G3/4 air port, an M36x2 rod thread, and a 50 mm adjustable air cushion at each end. The thrust ratings are 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 SAI160AX150
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX150 replacement — usually within 7-8 hours.