This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1150S, 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 SI160X1150S
The AirTAC SI160 Standard Cylinder SI160X1150S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1150S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke1150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X1150S
- 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 SI160X1150S
The AirTAC SI160X1150S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1150 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160X1150S, a direct alternative retaining the exact ISO 15552 mounting interface, M36x2 thread, and 50 mm cushions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. The SAI family adds lock variants (SAIL, BSAI) absent in the SI line. Your -S magnet works with legacy CS1-B/DS1-B sensors, while SAI uses current switches.
Airtac SI160 Standard Cylinder SI160X1150S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X1150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1150S |
| Bore size | Ø160 mm |
| Stroke | 1150 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 SAI160X1150S 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 SAI160X1150S 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 SI160X1150S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×1150 | 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 SI160X1150S Is Used
Heavy Press Systems
Drives large press platens requiring 10053 N push at 0.5 MPa, utilizing the 50 mm adjustable cushions to absorb high kinetic energy at stroke ends.
Automated Assembly Rigs
Actuates heavy-duty tooling heads over long distances, where the G3/4 port ensures adequate flow for the 30-500 mm/s speed range.
Replacing the Airtac SI160 Standard Cylinder SI160X1150S with the SAI160X1150S
To replace the SI160X1150S, order the SAI160X1150S. Confirm the ISO 15552 mounting fixture, G3/4 port, and -S magnet. This 1150 mm stroke exceeds 300 mm, so use external guides to prevent rod bending and side-load damage. For sizing, the 125 mm bore yields 6136 N push @0.5 MPa, and the 200 mm bore yields 15708 N. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. Viton H seals raise operating temperature to 150 C.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X1150S
- ✓ 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 SI160X1150S FAQ
Yes, the SI160X1150S is discontinued. The direct replacement is the SAI160X1150S. It shares the same ISO 15552 mounting interface, 160 mm bore, 1150 mm stroke, output force, G3/4 port, and accessories, fitting directly into existing fixtures.
It features a G3/4 port and delivers 10053 N push / 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. The piston rod is 40 mm with an M36x2 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X1150S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1150S replacement — usually within 7-8 hours.