This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X40SFA, 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 SI160X40SFA
The AirTAC Airtac SI160 Standard Cylinder SI160X40SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 40mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X40SFA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X40SFA
- 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 SI160X40SFA
The AirTAC SI160X40SFA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 40 mm stroke. Built for heavy-duty tasks, it delivers 10053 N push force at 0.5 MPa and features a G3/4 port, M36x2 rod thread, and 50 mm adjustable air cushions. AirTAC replaced this legacy unit with the SAI160X40SFA, a direct upgrade retaining the exact FA flange mount, interface, and output force.
The SAI replacement upgrades longevity with two Y-shaped one-way piston seals for low start-up pressure. This SI-SKU includes a magnet for CS1-B/DS1-B sensors, while the SAI family expands options with SAIL lock and BSAI clamp-lock variants for load holding.
Airtac SI160 Standard Cylinder SI160X40SFA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X40SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X40SFA |
| Bore size | Ø160 mm |
| Stroke | 40 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 SAI160X40SFA 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 SAI160X40SFA 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 SI160X40SFA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×40 | 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 SI160X40SFA Is Used
Heavy Press Clamping
Generates 10053 N of thrust at 0.5 MPa to secure large steel plates during machining operations.
Pallet Stopping
Short 40 mm stroke acts as a robust end-stop for heavy-loaded conveyors, absorbing kinetic energy.
Industrial Door Actuation
Moves large soundproof or radiation shielding doors, utilizing the FA flange mount for rigid framing.
Replacing the Airtac SI160 Standard Cylinder SI160X40SFA with the SAI160X40SFA
To replace the SI160X40SFA, order the SAI160X40SFA. It drops directly into existing fixtures via the ISO 15552 mounting interface, matching the 160 mm bore, 40 mm stroke, G3/4 port, and FA flange. The -S magnet enables CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). If you need less force, step down to a 125 mm bore (6136 N @0.5 MPa); for more power, note the 160 mm already hits 14074 N at 0.7 MPa. A plain cylinder drifts without live air, so for load holding use the SAIL or BSAI lock variant, or an external pilot check valve. The 40 mm stroke avoids rod-bending side-load risks seen in long strokes.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X40SFA
- ✓ 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 SI160X40SFA FAQ
Yes, the AirTAC SI160X40SFA is discontinued. The direct replacement is the SAI160X40SFA. It shares the same ISO 15552 mounting interface, 160 mm bore, 40 mm stroke, G3/4 port, and FA flange, fitting existing fixtures perfectly.
This double-acting cylinder features a G3/4 port. It provides 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X40SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X40SFA replacement — usually within 7-8 hours.