This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X150SFA, 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 SI160X150SFA
The AirTAC Airtac SI160 Standard Cylinder SI160X150SFA 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 SAI160X150SFA, 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 → SAI160X150SFA
- 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 SI160X150SFA
The AirTAC SI160X150SFA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 150 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa, features a G3/4 port, and uses an FA flange mount. AirTAC replaced this EOL unit with the SAI160X150SFA, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. For load holding, note that a standard cylinder drifts without live air; the cushion only decelerates. Use the SAIL or BSAI lock variants if needed. The -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160X150SFA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X150SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X150SFA |
| 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 SAI160X150SFA 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 SAI160X150SFA 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 SI160X150SFA
| 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 SI160X150SFA Is Used
Heavy Pressing
Applies the 10053 N @0.5 MPa thrust for assembling large industrial components or pressing bearings into heavy housings.
Clamping Fixtures
Secures large workpieces during machining using the robust FA flange mount and 9425 N pull force.
Replacing the Airtac SI160 Standard Cylinder SI160X150SFA with the SAI160X150SFA
To replace the SI160X150SFA, order the SAI160X150SFA. Verify the ISO 15552 FA flange interface, 150 mm stroke, G3/4 port, and the -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches). Sizing both ways: this 160 mm bore yields 10053 N push at 0.5 MPa; if less force is needed, the 125 mm bore offers 6136 N. For higher force, the 200 mm bore provides 15708 N. Because the stroke is 150 mm, ensure adequate guidance to prevent rod bending under side loads. A plain cylinder does not hold load without air; for holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF self-valve variant (bores 32-100) which this SI lacked.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X150SFA
- ✓ 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 SI160X150SFA FAQ
Yes, the SI160X150SFA is discontinued. The direct replacement is the SAI160X150SFA. It shares the same ISO 15552 mounting interface, 160 mm bore, 150 mm stroke, output force, G3/4 port, and FA flange, fitting existing fixtures perfectly.
This double-acting cylinder has a G3/4 port. It delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa, 14074 N at 0.7 MPa, 18095 N at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X150SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X150SFA replacement — usually within 7-8 hours.