This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX140, 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 SI160AX140
The AirTAC Airtac SI160 Standard Cylinder SI160AX140 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX140, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX140
- 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 SI160AX140
The AirTAC SI160AX140 is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 140mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160AX140, matching the exact ISO 15552 mounting interface, M36x2 rod thread, and 50mm cushions.
The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU uses an SUS420J2 stainless steel rod (-A) and lacks a magnet, meaning it cannot accept CS1-B or DS1-B sensors. For load holding, note that the cushion only decelerates; you need the SAIL lock or BSAI clamp-lock variant to prevent drift.
Airtac SI160 Standard Cylinder SI160AX140 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX140 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX140 |
| Bore size | Ø160 mm |
| Stroke | 140 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 SAI160AX140 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 SAI160AX140 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 SI160AX140
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×140 | 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 SI160AX140 Is Used
Heavy Press Stamping
Drives large metal forming presses requiring high thrust, using the 10053 N push force at 0.5 MPa to shape thick steel plates.
Pallet Lift Gates
Actuates heavy-duty loading dock lift gates, where the 50mm adjustable cushions safely decelerate massive vertical payloads at stroke end.
Mold Clamping Stations
Holds large injection molds in place during setup, relying on the robust 160mm bore and SUS420J2 stainless rod for corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160AX140 with the SAI160AX140
To replace the SI160AX140, order the SAI160AX140. Confirm the ISO 15552 mounting interface, 160mm bore, 140mm stroke, G3/4 port, and SUS420J2 rod. Since this SKU has no -S suffix, it cannot support position sensing. If sizing alternatives, the 125mm bore yields 6136 N push at 0.5 MPa, while the 200mm bore yields 15708 N. For any stroke over 300mm, add external guide rails to prevent rod bending under side loads. Because a standard cylinder drifts without live air, use an external pilot check valve or the SAIL/BSAI lock variant for suspended loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX140
- ✓ 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 SI160AX140 FAQ
Yes, the AirTAC SI160AX140 is discontinued. The direct replacement is the SAI160AX140. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 160mm bore, 140mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder has a G3/4 port. It generates 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. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX140
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX140 replacement — usually within 7-8 hours.