This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX175, 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 SI160AX175
The AirTAC Airtac SI160 Standard Cylinder SI160AX175 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 175mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX175, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX175
- 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 SI160AX175
The AirTAC SI160AX175 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 175 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI160AX175. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force, and port, fitting existing fixtures perfectly. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU has no magnet (-S omitted), so it cannot accept a CS1-B or DS1-B sensor. The -A suffix denotes a SUS420J2 stainless steel piston rod for corrosion resistance.
The SAI family also introduces variants the SI lacked, such as the SAIL air-released lock and BSAI clamp-lock for secure load holding. Operating pressure spans 0.15 to 1.0 MPa, with a Viton H seal option extending the temperature range to 0-150 C.
Airtac SI160 Standard Cylinder SI160AX175 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX175 |
| Bore size | Ø160 mm |
| Stroke | 175 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 SAI160AX175 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 SAI160AX175 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 SI160AX175
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×175 | 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 SI160AX175 Is Used
Heavy Pressing
Applies 10053 N of thrust at 0.5 MPa for seating heavy components and actuating large industrial presses.
Clamping Fixtures
Secures large workpieces during machining, relying on the 50 mm adjustable air cushions for smooth deceleration.
Replacing the Airtac SI160 Standard Cylinder SI160AX175 with the SAI160AX175
To replace the SI160AX175, order the SAI160AX175. Verify the ISO 15552 mounting interface, 160 mm bore, 175 mm stroke, G3/4 port, and M36x2 rod thread. Because this SKU lacks the -S magnet, it cannot support position sensing; if sensing is needed, specify the SAI160X175S. The -A rod is SUS420J2 stainless steel. If sizing down, a 125 mm bore yields 6136 N push at 0.5 MPa; sizing up to 200 mm provides 15708 N. Note that a plain cylinder drifts without live air, so for load holding, use the SAIL lock, BSAI clamp-lock, or an external pilot check valve. Since the 175 mm stroke is under 300 mm, side-load rod-bending risks are lower, but proper guide alignment is still advised.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX175
- ✓ 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 SI160AX175 FAQ
Yes, the AirTAC SI160AX175 is discontinued. The direct replacement is the SAI160AX175. It shares the identical ISO 15552 mounting interface, 160 mm bore, 175 mm stroke, output force, and G3/4 port, dropping directly into existing machinery.
This double-acting cylinder has a G3/4 port and an M36x2 rod thread. The thrust is 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. Speed ranges from 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX175
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX175 replacement — usually within 7-8 hours.