This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X75SN, 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 SI160X75SN
The AirTAC SI160 Standard Cylinder SI160X75SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X75SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X75SN
- 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 SI160X75SN
The AirTAC SI160X75SN is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 75 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160X75SN, retaining the same ISO 15552 mounting interface, output, and dimensions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SI -N option uses NBR seals (-20 to +70 C), with Viton H available for high heat. The -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160X75SN Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X75SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X75SN |
| Bore size | Ø160 mm |
| Stroke | 75 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 SAI160X75SN 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 SAI160X75SN 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 SI160X75SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×75 | 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 SI160X75SN Is Used
Heavy Press Clamping
Secures large metal castings in machining fixtures, utilizing the 10053 N push force at 0.5 MPa to hold components rigidly against cutting loads.
Industrial Door Actuation
Drives massive automated foundry doors, where the 9425 N pull force at 0.5 MPa easily overcomes the high friction of heavy industrial hinges.
Replacing the Airtac SI160 Standard Cylinder SI160X75SN with the SAI160X75SN
To replace the SI160X75SN, order the SAI160X75SN. Verify the ISO 15552 mounting interface, 160 mm bore, 75 mm stroke, G3/4 port (PT/G/NPT), and mounting accessory. The -S magnet enables current AirTAC switches (legacy CS1-B/DS1-B). If downsizing, a 125 mm bore yields 6136 N push at 0.5 MPa; if upsizing, 200 mm yields 15708 N. A plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF self-valve (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X75SN
- ✓ 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 SI160X75SN FAQ
Yes, the SI160X75SN is discontinued. The direct replacement is the SAI160X75SN. It is dimensionally interchangeable per the ISO 15552 mounting interface, maintaining the same 160 mm bore, 75 mm stroke, force, and G3/4 port.
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 max of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X75SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X75SN replacement — usually within 7-8 hours.