This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X250CA, 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 SI160X250CA
The AirTAC Airtac SI160 Standard Cylinder SI160X250CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 250mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X250CA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X250CA
- 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 SI160X250CA
The AirTAC SI160X250CA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 250 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160X250CA, which shares the same CA clevis mounting and interface.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure, and adds SAIL or BSAI lock variants the SI lacked. Note this specific SKU lacks a magnet and cannot accept a sensor.
Airtac SI160 Standard Cylinder SI160X250CA Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X250CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X250CA |
| Bore size | Ø160 mm |
| Stroke | 250 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 SAI160X250CA 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 SAI160X250CA 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 SI160X250CA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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 SI160X250CA Is Used
Heavy Press Operations
Drives large stamping and forming presses requiring up to 10053 N of push force at 0.5 MPa, utilizing the robust 40 mm piston rod.
Large Mold Handling
Shifts industrial molds and heavy tooling along production lines, relying on the CA clevis mount to handle high articulation stress.
Replacing the Airtac SI160 Standard Cylinder SI160X250CA with the SAI160X250CA
To replace the SI160X250CA, order the SAI160X250CA. Verify the ISO 15552 CA clevis mount, 250 mm stroke, G3/4 port, and M36x2 rod thread. Because this non-magnet SKU cannot take a switch, order a separate sensor bracket if needed. For sizing, the 160 mm bore yields 10053 N push at 0.5 MPa; dropping to a 125 mm bore gives 6136 N, while increasing pressure to 0.7 MPa provides 14074 N. The cushion only decelerates the load; it does not hold position on air loss. For load holding, use an external pilot check valve or the SAIL lock variant. The 250 mm stroke is under the 300 mm threshold, so side-load rod-bending risks are minimal, but standard guide considerations apply.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X250CA
- ✓ 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 SI160X250CA FAQ
Yes, the SI160X250CA is discontinued. The direct replacement is the SAI160X250CA. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 250 mm stroke, G3/4 port, and CA clevis mounting interface.
The bore is 160 mm with a G3/4 air port. At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa the push force is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X250CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X250CA replacement — usually within 7-8 hours.