This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX170, 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 SI160AX170
The AirTAC Airtac SI160 Standard Cylinder SI160AX170 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 SAI160AX170, 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 → SAI160AX170
- 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 SI160AX170
The AirTAC SI160AX170 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 170 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160AX170, matching the interface, bore, stroke, force, and mounting. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. The default carbon-steel rod can be swapped for the SUS420J2 stainless option (A). Note that a plain cylinder drifts without live air; the 50 mm cushions only decelerate. For load holding, use an external rod lock or the SAIL/BSAI lock variants. Viton H seals raise the temperature range to 0-150 C.
Airtac SI160 Standard Cylinder SI160AX170 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX170 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX170 |
| 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 SAI160AX170 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 SAI160AX170 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 SI160AX170
| 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 SI160AX170 Is Used
Heavy Press Operations
Drives large forming and stamping presses requiring up to 14074 N of thrust at 0.7 MPa, utilizing the 50 mm adjustable cushions to absorb massive kinetic energy.
Automated Clamp Systems
Secures large fabricated components during machining, relying on the rigid ISO 15552 profile barrel and SUS420J2 stainless rod option for corrosive environments.
Replacing the Airtac SI160 Standard Cylinder SI160AX170 with the SAI160AX170
To replace the SI160AX170, order the SAI160AX170. Verify the ISO 15552 mounting interface, 160 mm bore, 170 mm stroke, G3/4 port, and M36x2 rod thread. This non-magnetic SKU cannot take CS1-B/DS1-B switches. To size both ways: the neighboring 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. Since the 170 mm stroke is under 300 mm, severe rod-bending side loads are less critical, but always guide the load. The cushion only decelerates; it does not hold. For dropped-air safety, specify an external pilot check valve or the SAIL/BSAI lock variant. The SAI family also adds the SAIF valve variant for smaller bores.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX170
- ✓ 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 SI160AX170 FAQ
Yes, the SI160AX170 is discontinued. The direct replacement is the SAI160AX170. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 170 mm stroke, G3/4 port, and mounting hardware exactly.
The G3/4 port feeds a 40 mm rod yielding 10053 N push and 9425 N pull at 0.5 MPa. At 0.7 MPa push is 14074 N, and 18095 N at 0.9 MPa. The theoretical max force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX170
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