This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X150S, 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 SI160X150S
The AirTAC SI160 Standard Cylinder SI160X150S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X150S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X150S
- 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 SI160X150S
The AirTAC SI160X150S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 150 mm stroke, delivering 10053 N push force at 0.5 MPa through its G3/4 port. As this legacy series reached end-of-life, AirTAC replaced it directly with the SAI160X150S. This current-production direct maintains the exact same ISO 15552 mounting interface, bore, stroke, output force, and port size, sliding right into existing machinery.
The SAI upgrade features a redesigned piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The original SI-S included a piston magnet for CS1-B/DS1-B sensors; the SAI family uses current AirTAC switches and adds SAIL lock, SAIF valve, and BSAI clamp-lock variants the SI lacked.
Airtac SI160 Standard Cylinder SI160X150S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X150S |
| Bore size | Ø160 mm |
| Stroke | 150 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 SAI160X150S 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 SAI160X150S 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 SI160X150S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×150 | 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 SI160X150S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping and forming dies requiring high thrust, utilizing the 10053 N push force at 0.5 MPa with robust 40 mm rod stability.
Pallet Transfer Unit
Actuates substantial pallet lifting and shifting mechanisms in automated distribution hubs where the 512 kg vertical lift capacity is essential.
Large Mold Handling
Positions heavy industrial molds and tooling on production lines, relying on the rigid ISO 15552 profile barrel to handle massive side loads.
Replacing the Airtac SI160 Standard Cylinder SI160X150S with the SAI160X150S
To replace the SI160X150S, order the SAI160X150S. Verify your ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 150 mm stroke, the G3/4 air port, and the M36x2 rod thread. Because the -S magnet is present, confirm your CS1-B/DS1-B legacy sensors are functioning or upgrade to current AirTAC switches. When sizing, a neighbouring 200 mm bore offers more force, while dropping to 125 mm reduces it; at 0.5 MPa this 160 mm bore yields 10053 N push and 9425 N pull. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so for load holding consider the SAIL or BSAI lock variants, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X150S
- ✓ 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 SI160X150S FAQ
Yes, the AirTAC SI160X150S is discontinued. The direct replacement is the SAI160X150S. It is a true ISO 15552 profile cylinder with identical bore, stroke, force, G3/4 port, and mounting interface, fitting existing fixtures perfectly.
Operating at 30-500 mm/s, it delivers 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 max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X150S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X150S replacement — usually within 7-8 hours.