This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX30S, 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 SI160AX30S
The AirTAC SI160 Standard Cylinder SI160AX30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 30mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke30 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX30S
- 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 SI160AX30S
The AirTAC SI160AX30S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 30 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160AX30S, retaining the same interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This unit includes a SUS420J2 stainless rod and a magnet for CS1-B/DS1-B sensors. For load holding, the cushion only decelerates; use an external rod lock or SAIL/BSAI variant.
Airtac SI160 Standard Cylinder SI160AX30S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX30S |
| Bore size | Ø160 mm |
| Stroke | 30 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 SAI160AX30S 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 SAI160AX30S 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 SI160AX30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×30 | 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 SI160AX30S Is Used
Heavy Press Operations
Ideal for high-tonnage pressing and forming tasks requiring a robust 10053 N push force at 0.5 MPa over a short 30 mm travel distance.
Industrial Clamping
Provides secure, heavy-duty clamping of large fabricated components, utilizing the SUS420J2 stainless rod for corrosion resistance in harsh shops.
Rigid Indexing Stops
Acts as a hard mechanical stop for heavy pallets or machinery beds, safely decelerating moving masses via its 50 mm adjustable air cushions.
Replacing the Airtac SI160 Standard Cylinder SI160AX30S with the SAI160AX30S
To replace the SI160AX30S, order the SAI160AX30S, confirming the ISO 15552 mounting interface, 160 mm bore, 30 mm stroke, G3/4 port, and magnet for current AirTAC switches. If downsizing, a 125 mm bore yields 6136 N push at 0.5 MPa; if upsizing, a 200 mm bore provides 15708 N. The SUS420J2 stainless rod suits corrosive environments, while a Viton H seal raises operating temperature to 150 C. Because this is a double-acting cylinder, it cannot hold loads without live air—use a pilot check valve or the SAIL/BSAI lock variant for secure holding. The short 30 mm stroke minimizes rod-bending risks, but always guide the load to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX30S
- ✓ 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 SI160AX30S FAQ
Yes, the SI160AX30S is discontinued. The direct replacement is the SAI160AX30S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 30 mm stroke, 10053 N force, G3/4 port, and mounting fixtures.
At 0.5 MPa, the push force is 10053 N and the pull force is 9425 N. At 0.7 MPa, push is 14074 N, and at 0.9 MPa, push is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa. The operating speed range is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX30S replacement — usually within 7-8 hours.