This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X170CA, 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 SI160X170CA
The AirTAC Airtac SI160 Standard Cylinder SI160X170CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 170mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X170CA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X170CA
- 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 SI160X170CA
The AirTAC SI160X170CA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 170 mm stroke. Delivering 10053 N push at 0.5 MPa via a G3/4 port, it is replaced by the SAI160X170CA. This direct successor matches the exact CA mounting, M36x2 rod thread, and 50 mm cushions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot take CS1-B/DS1-B sensors. For high heat, Viton H seals raise limits to 150 C.
Airtac SI160 Standard Cylinder SI160X170CA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X170CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X170CA |
| Bore size | Ø160 mm |
| Stroke | 170 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 SAI160X170CA 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 SAI160X170CA 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 SI160X170CA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×170 | 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 SI160X170CA Is Used
Heavy Press Clamping
Secures large steel plates in hydraulic press fixtures, utilizing the 14074 N push force at 0.7 MPa to hold components rigidly during stamping.
Pallet Lift Gates
Actuates robust load-lifting gates on automated palletizers, where the 9425 N pull force at 0.5 MPa easily handles vertical lifting duties.
Injection Mold Ejection
Drives heavy ejection pins in large-scale injection molding machines, benefiting from the 50 mm adjustable air cushions to brake the 40 mm rod smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160X170CA with the SAI160X170CA
To replace the SI160X170CA, order the SAI160X170CA, confirming the ISO 15552 CA clevis mount, 170 mm stroke, and G3/4 port. As this SKU has no magnet, you cannot mount position sensors. If sizing down, a 125 mm bore yields 6136 N push @0.5 MPa; if sizing up, a 200 mm bore yields 15708 N. Air cushions only decelerate near stroke end; for load holding on air loss, use an external rod lock or pilot check valve, or specify the SAIL or BSAI lock variant. With a 170 mm stroke, side-load is low, but ensure rod alignment to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X170CA
- ✓ 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 SI160X170CA FAQ
Yes, the SI160X170CA is discontinued. The direct replacement is the SAI160X170CA. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 170 mm stroke, G3/4 port, and CA clevis mounting interface.
This double-acting cylinder uses a G3/4 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 of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X170CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X170CA replacement — usually within 7-8 hours.