This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX290, 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 SI160BX290
The AirTAC SI160 Standard Cylinder SI160BX290 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 290mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX290, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke290 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX290
- 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 SI160BX290
The AirTAC SI160BX290 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 290 mm stroke. Delivering 10053 N push force at 0.5 MPa, it utilizes a G3/4 air port and a 50 mm adjustable air cushion at each end. The direct replacement is the SAI160BX290, retaining the identical interface, force, and porting.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Because this specific SI SKU lacks the -S magnet, it cannot accept position switches; legacy CS1-B/DS1-B sensors only fit magnetized variants. The -B rod option specifies a SUS304 stainless piston rod for corrosion resistance.
Airtac SI160 Standard Cylinder SI160BX290 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX290 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX290 |
| Bore size | Ø160 mm |
| Stroke | 290 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 SAI160BX290 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 SAI160BX290 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 SI160BX290
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×290 | 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 SI160BX290 Is Used
Heavy Stamp Pressing
Drives large stamping dies with 10053 N push force at 0.5 MPa, utilizing the 50 mm adjustable cushion to absorb impact.
Clamp Actuation
Secures large fabricated components during machining, relying on the robust 40 mm carbon steel rod for rigidity.
Replacing the Airtac SI160 Standard Cylinder SI160BX290 with the SAI160BX290
To replace the SI160BX290, order the SAI160BX290 to guarantee the exact ISO 15552 mounting interface, 160 mm bore, 290 mm stroke, and G3/4 port are preserved. Confirm your mounting accessory (LB, FA, CA, TC) and thread type (PT, G, or NPT). Since this SKU has no -S magnet, it cannot support sensing; if switches are needed, select an SAI model with the S suffix for current AirTAC switch compatibility. For sizing alternatives, dropping to a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore provides 15708 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. At 290 mm stroke, ensure guide alignment to prevent rod-bending side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX290
- ✓ 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 SI160BX290 FAQ
Yes, the SI160BX290 is discontinued. The direct replacement is the SAI160BX290, which maintains the identical ISO 15552 mounting interface, 160 mm bore, 290 mm stroke, force, and G3/4 port for a seamless fixture fit.
The 160 mm bore 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 max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX290
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX290 replacement — usually within 7-8 hours.