This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X225, 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 SI160X225
The AirTAC SI160 Standard Cylinder SI160X225 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 SAI160X225, 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 → SAI160X225
- 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 SI160X225
The AirTAC SI160X225 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 225 mm stroke, delivering 10053 N push force at 0.5 MPa. The direct replacement is the SAI160X225, matching the exact bore, stroke, force, G3/4 port, and ISO 15552 mounting interface. This SKU lacks a magnet (-S) and cannot accept a position sensor.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants absent from the SI line.
Airtac SI160 Standard Cylinder SI160X225 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X225 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X225 |
| 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 SAI160X225 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 SAI160X225 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 SI160X225
| 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 SI160X225 Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large steel fabrications during heavy-duty machining and press operations.
Injection Mould Handling
Shifts heavy injection moulds into position, relying on the 40 mm carbon steel rod and 50 mm cushions for stability.
Replacing the Airtac SI160 Standard Cylinder SI160X225 with the SAI160X225
To replace the SI160X225, order the SAI160X225 ensuring the ISO 15552 mounting interface, 225 mm stroke, and G3/4 port match your fixture. Because this specific SKU has no magnet, it cannot support legacy CS1-B/DS1-B sensors; order an SAI with the S suffix if sensing is required. Sizing both ways: the 160 mm bore yields 10053 N push at 0.5 MPa, while the neighbouring 125 mm bore offers 6136 N. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. For any stroke over 300 mm, verify guide alignment to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X225
- ✓ 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 SI160X225 FAQ
Yes, the AirTAC SI160X225 is discontinued. The direct replacement is the SAI160X225. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 225 mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder features a G3/4 port and an M36x2 rod thread. Force output is 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, with a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X225
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X225 replacement — usually within 7-8 hours.