This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X135, 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 SI160X135
The AirTAC SI160 Standard Cylinder SI160X135 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 135mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X135, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke135 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X135
- 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 SI160X135
The AirTAC SI160X135 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 135 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI160X135. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force, and port for existing fixtures.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also introduces SAIL and BSAI lock variants absent in the SI line. Note this non-magnet SKU cannot take a sensor.
Airtac SI160 Standard Cylinder SI160X135 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X135 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X135 |
| Bore size | Ø160 mm |
| Stroke | 135 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 SAI160X135 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 SAI160X135 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 SI160X135
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×135 | 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 SI160X135 Is Used
Heavy Press Forming
Drives large stamping and forming presses requiring high thrust, utilizing the 10053 N push force at 0.5 MPa to shape thick metal components.
Industrial Clamp Rigs
Secures heavy fabrication assemblies in welding cells, relying on the 40 mm piston rod and M36x2 thread for rigid, high-force clamping.
Replacing the Airtac SI160 Standard Cylinder SI160X135 with the SAI160X135
To replace the SI160X135, order the SAI160X135. Verify the ISO 15552 interface, 135 mm stroke, G3/4 port (PT/G/NPT), and mounting accessory. This non-magnet SKU cannot accept a CS1-B/DS1-B sensor. If sizing up or down, note the 125 mm bore offers 6136 N push at 0.5 MPa, while the 200 mm bore provides 15708 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding. For stroke lengths over 300 mm, add external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X135
- ✓ 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 SI160X135 FAQ
Yes, the AirTAC SI160X135 is discontinued. The direct replacement is the SAI160X135. It features the same ISO 15552 mounting interface, 160 mm bore, 135 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
This double-acting cylinder uses a G3/4 air port. 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 force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X135
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X135 replacement — usually within 7-8 hours.