This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX225, 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 SI160BX225
The AirTAC SI160 Standard Cylinder SI160BX225 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 225mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX225, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke225 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX225
- 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 SI160BX225
The AirTAC SI160BX225 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 225 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160BX225, matching the interface, force, and mounting.
This SKU uses a SUS304 stainless piston rod (-B) but lacks a magnet, so it cannot take a sensor. The SAI upgrade features two Y-shaped piston seals for low start-up pressure. For higher heat, Viton H seals raise the limit to 150 C.
Airtac SI160 Standard Cylinder SI160BX225 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX225 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX225 |
| Bore size | Ø160 mm |
| Stroke | 225 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 SAI160BX225 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 SAI160BX225 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 SI160BX225
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×225 | 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 SI160BX225 Is Used
Heavy Stamping Press
Drives large heavy-duty stamping and forming dies requiring 10053 N of push force at 0.5 MPa with stable 160 mm bore guidance.
Large Clamp Fixture
Secures oversized fabricated components during machining using the robust 40 mm SUS304 stainless rod and M36x2 thread.
Replacing the Airtac SI160 Standard Cylinder SI160BX225 with the SAI160BX225
To replace the SI160BX225, order the SAI160BX225 to keep the exact ISO 15552 mounting interface, 160 mm bore, 225 mm stroke, and G3/4 port. Because this SKU lacks a magnet (-S), it cannot accept CS1-B/DS1-B sensors; if position detection is needed, specify a magnet on the SAI order. This bore produces 10053 N push at 0.5 MPa; if you need less force, step down to a 125 mm bore (6136 N push), or step up to 200 mm (15708 N) for heavier loads. For load holding on air loss, note the air cushion only decelerates; you must add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variants. The SUS304 rod option suits corrosive environments.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX225
- ✓ 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 SI160BX225 FAQ
Yes, the SI160BX225 is discontinued. The direct replacement is the SAI160BX225, which shares the same ISO 15552 mounting interface, 160 mm bore, 225 mm stroke, output force, and G3/4 port.
It features a G3/4 port and generates 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 maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX225
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX225 replacement — usually within 7-8 hours.