This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX180, 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 SI160BX180
The AirTAC SI160 Standard Cylinder SI160BX180 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 180mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX180, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX180
- 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 SI160BX180
The AirTAC SI160BX180 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 180 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160BX180, matching the bore, stroke, force, port and ISO 15552 mounting interface.
This SKU features a SUS304 stainless steel rod (option B) but lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI160 Standard Cylinder SI160BX180 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX180 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX180 |
| Bore size | Ø160 mm |
| Stroke | 180 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 SAI160BX180 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 SAI160BX180 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 SI160BX180
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×180 | 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 SI160BX180 Is Used
Heavy Press Operations
Drives substantial forming and stamping presses requiring up to 14074 N of push force at 0.7 MPa.
Industrial Clamp Systems
Secures large fabricated components during machining using the robust 40 mm SUS304 stainless rod.
Replacing the Airtac SI160 Standard Cylinder SI160BX180 with the SAI160BX180
To replace the SI160BX180, order the SAI160BX180. Verify the ISO 15552 mounting interface, 180 mm stroke, G3/4 port, and SUS304 rod. Since this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors. For sizing, the 160 mm bore yields 10053 N push at 0.5 MPa (max 2050 kgf at 1.0 MPa); a 200 mm bore offers more force, while 125 mm provides less. The cushion only decelerates; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants. For 180 mm strokes, ensure guide alignment to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX180
- ✓ 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 SI160BX180 FAQ
Yes, the SI160BX180 is discontinued. The direct replacement is the SAI160BX180. It shares the same ISO 15552 mounting interface, 160 mm bore, 180 mm stroke, force, G3/4 port, and SUS304 rod, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/4 port. At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX180
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX180 replacement — usually within 7-8 hours.