This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63AX160, 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 SI63 Standard Cylinder SI63AX160
The AirTAC Airtac SI63 Standard Cylinder SI63AX160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63AX160, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63AX160
- 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 SI63 Standard Cylinder SI63AX160
The AirTAC SI63AX160 is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 160 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa, utilizing a G3/8 air port and an M16x1.5 rod thread. Because this legacy unit is end-of-life, you should order the direct replacement: the SAI63AX160. It shares the same ISO 15552 mounting interface, output force, and porting, fitting existing fixtures perfectly.
The SAI upgrade introduces a refined piston seal featuring two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU lacks the -S magnet, so it cannot accept a CS1-B/DS1-B sensor. Note that a standard cylinder drifts without live air; for load holding, consider the SAIL or BSAI lock variants.
Airtac SI63 Standard Cylinder SI63AX160 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63AX160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63AX160 |
| Bore size | Ø63 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI63AX160 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAI63AX160 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI63 Standard Cylinder SI63AX160
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×160 | 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 SI63 Standard Cylinder SI63AX160 Is Used
Clamp Actuation
Provides reliable 1559 N clamping force for machining fixtures, with the SUS420J2 stainless rod resisting coolant corrosion.
Product Diverting
Drives diverters and gates on medium-duty conveyors, moving packages efficiently at 30-800 mm/s operating speeds.
Replacing the Airtac SI63 Standard Cylinder SI63AX160 with the SAI63AX160
To replace the discontinued SI63AX160, order the SAI63AX160, confirming the ISO 15552 mounting interface, 63 mm bore, 160 mm stroke, and G3/8 port (PT/G/NPT thread options). Because this SKU has no -S suffix, it lacks a magnet and cannot support position sensing; if switches are needed, select an SAI63X160S and use current AirTAC sensors. The default carbon-steel rod is replaced by the SUS420J2 stainless rod (-A) on this model for corrosion resistance. Sizing both ways: the 63 mm bore yields 1559 N push at 0.5 MPa, but if you need less force, a 50 mm bore provides 982 N; if you need more, an 80 mm bore offers 2513 N. For load holding on air loss, a plain cylinder drifts and the cushion only decelerates—install an external pilot check valve or rod lock, or step up to the SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63AX160
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI63 Standard Cylinder SI63AX160 FAQ
Yes, the AirTAC SI63AX160 is discontinued. The direct replacement is the SAI63AX160. It is dimensionally interchangeable per ISO 15552, retaining the same 63 mm bore, 160 mm stroke, 1559 N force, G3/8 port, and mounting accessories.
This double-acting cylinder features a G3/8 air port and provides 1559 N push and 1402 N pull at 0.5 MPa. At 0.7 MPa the push force is 2182 N, and the theoretical maximum force is 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63AX160
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63AX160 replacement — usually within 7-8 hours.