This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX900S, 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 SI160AX900S
The AirTAC SI160 Standard Cylinder SI160AX900S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 900mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX900S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX900S
- 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 SI160AX900S
The AirTAC SI160AX900S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore, 900 mm stroke, and a SUS420J2 stainless steel piston rod. Delivering 10053 N of push force at 0.5 MPa, it uses a G3/4 air port and an M36x2 rod thread. The direct replacement is the SAI160AX900S, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The original -S magnet supports CS1-B/DS1-B sensors, while the SAI family adds SAIL lock, SAIF valve, and BSAI clamp-lock variants absent in the SI line.
Airtac SI160 Standard Cylinder SI160AX900S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX900S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX900S |
| Bore size | Ø160 mm |
| Stroke | 900 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 SAI160AX900S 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 SAI160AX900S 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 SI160AX900S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×900 | 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 SI160AX900S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053 N of push force at 0.5 MPa over a 900 mm travel distance.
Large Assembly Fixture
Actuates 160 mm bore clamping arms in automotive assembly jigs using its adjustable 50 mm air cushions.
Replacing the Airtac SI160 Standard Cylinder SI160AX900S with the SAI160AX900S
To replace the SI160AX900S, order the SAI160AX900S. Verify the ISO 15552 mounting interface, 900 mm stroke, G3/4 port, and the -S magnet for current AirTAC switches. The -A rod denotes the SUS420J2 stainless option over standard carbon steel. If downsizing, a 125 mm bore yields 6136 N at 0.5 MPa; if upsizing, a 200 mm bore provides 15708 N. Note that a 900 mm stroke requires external guides to prevent rod bending and side-load damage. A plain cylinder drifts without air; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX900S
- ✓ 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 SI160AX900S FAQ
Yes, the SI160AX900S is discontinued. The direct replacement is the SAI160AX900S. It features the same ISO 15552 mounting interface, 160 mm bore, 900 mm stroke, output force, G3/4 port, and SUS420J2 rod, fitting existing fixtures perfectly.
At 0.5 MPa it pushes 10053 N and pulls 9425 N. Push force is 14074 N at 0.7 MPa, 18095 N at 0.9 MPa, with a theoretical max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s. The G3/4 port and M36x2 thread are fixed by the 160 mm bore.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX900S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX900S replacement — usually within 7-8 hours.