This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX290S, 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 SI160AX290S
The AirTAC SI160 Standard Cylinder SI160AX290S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 290mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX290S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke290 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX290S
- 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 SI160AX290S
The AirTAC SI160AX290S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 290 mm stroke, delivering 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160AX290S, matching the interface, force, and mounting.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The original SI line lacked SAIL lock, SAIF valve, and BSAI clamp-lock variants now available. The -A rod is SUS420J2 stainless steel, and the -S magnet pairs with CS1-B/DS1-B switches.
Airtac SI160 Standard Cylinder SI160AX290S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX290S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX290S |
| Bore size | Ø160 mm |
| Stroke | 290 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 SAI160AX290S 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 SAI160AX290S 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 SI160AX290S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×290 | 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 SI160AX290S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053 N push force at 0.5 MPa, utilizing the 290 mm stroke to form thick metal components.
Automotive Assembly Jig
Actuates substantial clamping arms on automotive frames, where the SUS420J2 stainless rod resists shop-floor corrosion and welding splatter.
Replacing the Airtac SI160 Standard Cylinder SI160AX290S with the SAI160AX290S
To replace the SI160AX290S, order the SAI160AX290S, confirming the ISO 15552 mounting interface, 160 mm bore, 290 mm stroke, G3/4 port, and M36x2 thread. The -S magnet enables CS1-B/DS1-B sensors (the SAI uses current AirTAC switches), while the -A rod denotes SUS420J2 stainless steel. Neighbouring bores are 125 mm (6136 N @0.5 MPa) and 200 mm (15708 N). For loads needing 18095 N, 0.9 MPa is required. At 290 mm stroke, use guide rails to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX290S
- ✓ 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 SI160AX290S FAQ
Yes, the AirTAC SI160AX290S is discontinued. The direct replacement is the SAI160AX290S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 290 mm stroke, output force, G3/4 port, and mounting fixtures.
The G3/4 port feeds a 40 mm rod delivering 10053 N push and 9425 N pull at 0.5 MPa. At 0.7 MPa push is 14074 N, and 18095 N at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa, operating at 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX290S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX290S replacement — usually within 7-8 hours.