This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX170, 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 SI160BX170
The AirTAC SI160 Standard Cylinder SI160BX170 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 SAI160BX170, 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 → SAI160BX170
- 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 SI160BX170
The AirTAC SI160BX170 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore and 170mm stroke. It delivers 10053 N push force at 0.5 MPa. The direct replacement is the SAI160BX170, matching the bore, stroke, G3/4 port, and ISO 15552 mounting interface exactly. This SKU uses a SUS304 stainless steel rod (-B) but lacks a magnet, so it cannot accept position sensors.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL and BSAI lock variants absent in the legacy SI line.
Airtac SI160 Standard Cylinder SI160BX170 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX170 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX170 |
| 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 SAI160BX170 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 SAI160BX170 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 SI160BX170
| 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 SI160BX170 Is Used
Heavy Press Operations
Drives large forming and stamping presses requiring 10053 N of push force at 0.5 MPa, utilizing the robust 40mm SUS304 rod for corrosion resistance.
Large Mold Clamping
Secures substantial injection molds via the ISO 15552 interface, relying on the 50mm adjustable air cushions to decelerate massive moving loads.
Replacing the Airtac SI160 Standard Cylinder SI160BX170 with the SAI160BX170
To replace the SI160BX170, order the SAI160BX170 to retain the exact ISO 15552 mounting dimensions, 170mm stroke, and G3/4 port. Confirm if your fixture requires the SUS304 stainless rod (-B) instead of standard carbon steel, and note that because this specific SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors. For sizing alternatives, a 200mm bore offers more thrust, while a 125mm bore provides 6136 N push at 0.5 MPa. Since this plain cylinder cannot hold a load without live air—the cushion only decelerates—use an external pilot check valve or the SAIL/BSAI lock variant for vertical holding. At 170mm stroke, rod bending is minimal, but always guide the load to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX170
- ✓ 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 SI160BX170 FAQ
Yes, the SI160BX170 is discontinued. The direct replacement is the SAI160BX170, which shares the same ISO 15552 mounting interface, 160mm bore, 170mm stroke, output force, and G3/4 port. It fits existing fixtures perfectly and features an upgraded piston seal.
This double-acting cylinder features a G3/4 port and a 40mm rod. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX170
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX170 replacement — usually within 7-8 hours.