This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX475, 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 SI160BX475
The AirTAC SI160 Standard Cylinder SI160BX475 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 475mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX475, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke475 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX475
- 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 SI160BX475
The AirTAC SI160BX475 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 475 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a SUS304 stainless steel rod (-B), a G3/4 port, and M36x2 rod threading. AirTAC replaced this legacy unit with the SAI160BX475, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, and force ratings.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this SKU lacks a magnet and cannot accept a sensor. If your application requires load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI160 Standard Cylinder SI160BX475 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX475 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX475 |
| Bore size | Ø160 mm |
| Stroke | 475 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 SAI160BX475 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 SAI160BX475 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 SI160BX475
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×475 | 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 SI160BX475 Is Used
Heavy Machinery Forming
Drives large forming presses and heavy-duty industrial machinery requiring up to 10053 N of thrust at 0.5 MPa with a robust SUS304 rod.
Large Valve Actuation
Operates oversized industrial valves and heavy dampers where the G3/4 port and 50 mm adjustable cushions manage high flow and deceleration.
Replacing the Airtac SI160 Standard Cylinder SI160BX475 with the SAI160BX475
To replace the discontinued SI160BX475, order the SAI160BX475, matching the 160 mm bore, 475 mm stroke, G3/4 port, and ISO 15552 mounting. Because this SKU lacks a magnet, it cannot support position sensing; if switches are needed, select an SAI equivalent with a magnet. The SUS304 stainless rod is ideal for corrosive environments, and a Viton H seal can raise the operating temperature to 150 C. For sizing, a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore provides 15708 N. Remember, a standard cylinder drifts without live air; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants. Finally, at 475 mm, use external guides to prevent rod bending and side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX475
- ✓ 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 SI160BX475 FAQ
Yes, the SI160BX475 is discontinued. The direct replacement is the SAI160BX475. It shares the identical ISO 15552 mounting interface, 160 mm bore, 475 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
The 160 mm bore features a G3/4 air 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 maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX475
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX475 replacement — usually within 7-8 hours.