This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X290STC, 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 SI160X290STC
The AirTAC SI160 Standard Cylinder SI160X290STC 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 SAI160X290STC, 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 → SAI160X290STC
- 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 SI160X290STC
The AirTAC SI160X290STC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 290 mm stroke. Built for heavy-duty tasks, it delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160X290STC, sharing the same TC trunnion mount, M36x2 thread, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL and BSAI lock variants absent in the SI line. The -S magnet works with legacy CS1-B/DS1-B sensors, while a Viton H seal raises heat resistance to 150 C.
Airtac SI160 Standard Cylinder SI160X290STC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X290STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X290STC |
| 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 SAI160X290STC 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 SAI160X290STC 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 SI160X290STC
| 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 SI160X290STC Is Used
Heavy Press Actuation
Drives large press platens using 14074 N at 0.7 MPa, relying on the 50 mm adjustable cushion to decelerate the massive moving mass safely.
Mold Clamping Fixtures
Holds large injection molds via the ISO 15552 TC trunnion mount, handling high forces while maintaining rigid structural support.
Replacing the Airtac SI160 Standard Cylinder SI160X290STC with the SAI160X290STC
To replace the SI160X290STC, order the SAI160X290STC. Verify the ISO 15552 TC trunnion interface, 160 mm bore, 290 mm stroke, G3/4 port, and the -S magnet for CS1-B/DS1-B switches. Sizing both ways: a 200 mm bore offers 15708 N push at 0.5 MPa, while a 125 mm bore provides 6136 N. At 0.7 MPa this 160 mm bore yields 14074 N. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant. At 290 mm stroke, ensure guide alignment to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X290STC
- ✓ 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 SI160X290STC FAQ
Yes, the SI160X290STC is discontinued. The direct replacement is the SAI160X290STC. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 290 mm stroke, G3/4 port, and TC mounting interface.
It features a G3/4 port and M36x2 rod thread. Force output is 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. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X290STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X290STC replacement — usually within 7-8 hours.