This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X630, 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 SI160X630
The AirTAC SI160 Standard Cylinder SI160X630 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 630mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X630, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke630 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X630
- 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 SI160X630
The AirTAC SI160X630 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 630 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160X630, sharing the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. For high heat, Viton H seals raise the temperature limit to 150 C.
Airtac SI160 Standard Cylinder SI160X630 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X630 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X630 |
| Bore size | Ø160 mm |
| Stroke | 630 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 SAI160X630 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 SAI160X630 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 SI160X630
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×630 | 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 SI160X630 Is Used
Heavy Machinery Forming
Drives large press platens and forming dies requiring 10053 N thrust at 0.5 MPa, utilizing the 630 mm stroke for deep draw operations.
Automated Blast Gate Actuation
Shifts large industrial blast gates or diverter valves in dust collection systems, using the robust 160 mm bore and G3/4 air port for high flow.
Replacing the Airtac SI160 Standard Cylinder SI160X630 with the SAI160X630
To replace the SI160X630, order the SAI160X630 and verify your ISO 15552 mounting accessory (LB, FA, CA, TC), G3/4 port thread (PT/G/NPT), and M36x2 rod end. Because this SKU has no magnet, it cannot support position sensing; if you need switches, select an SAI160X630S and use current AirTAC sensors. At 0.5 MPa this bore yields 10053 N push and 9425 N pull; if you need less force, the neighboring 125 mm bore provides 6136 N push. For load holding on air loss, note that the air cushion only decelerates at stroke end—it does not lock. Use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants. Finally, at 630 mm stroke, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X630
- ✓ 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 SI160X630 FAQ
Yes, the SI160X630 is discontinued. The direct replacement is the SAI160X630. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 630 mm stroke, 10053 N force, G3/4 port, and mounting interface, so it fits existing fixtures perfectly.
The 160 mm bore uses a G3/4 air port and a 40 mm rod. At 0.5 MPa it provides 10053 N push and 9425 N pull. At 0.7 MPa push 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 SAI160X630
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X630 replacement — usually within 7-8 hours.