This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63AX60, 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 SI63AX60
The AirTAC Airtac SI63 Standard Cylinder SI63AX60 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63AX60, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke60 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63AX60
- 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 SI63AX60
The AirTAC SI63AX60 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 60mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa via a G3/8 port. The direct replacement is the SAI63AX60, which shares identical mounting, force, and port specs. This base SKU lacks a magnet, so it cannot accept a position switch.
Upgrading to the SAI63AX60 brings a superior two Y-shaped one-way piston seal for lower start-up pressure and longer life. The SAI family also introduces lock and valve variants (SAIL, SAIF, BSAI) absent in the SI line. The -A suffix indicates a SUS420J2 stainless rod for corrosion resistance.
Airtac SI63 Standard Cylinder SI63AX60 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63AX60 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63AX60 |
| Bore size | Ø63 mm |
| Stroke | 60 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 SAI63AX60 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 SAI63AX60 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 SI63AX60
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×60 | 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 SI63AX60 Is Used
Clamp Actuation
Secures mid-weight machining fixtures with 1559N push force, while the SUS420J2 stainless rod resists coolant mist.
Package Diversion
Drives a 60mm stroke diverting arm to route goods on a packaging line without requiring position sensing.
Pallet Stops
Acts as a robust pneumatic stop for pallets, safely halting loads within the 935N safe working limit.
Replacing the Airtac SI63 Standard Cylinder SI63AX60 with the SAI63AX60
To replace the SI63AX60, order the SAI63AX60. Confirm the ISO 15552 mounting interface, 63mm bore, 60mm stroke, G3/8 port (PT/G/NPT thread options), and your specific mounting accessory. Because this SKU has no -S suffix, it lacks a magnet and cannot support sensing; if switches are needed, select an SAI63AX60S and use current AirTAC switches. For sizing, the 63mm bore yields 1559N push at 0.5MPa; if more force is needed, an 80mm bore provides 2513N. If less is acceptable, a 50mm bore gives 982N. A plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or the SAIL/BSAI lock variant for load holding. The SUS420J2 stainless rod suits humid environments.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63AX60
- ✓ 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 SI63AX60 FAQ
Yes, the SI63AX60 is discontinued. The direct replacement is the SAI63AX60. It is dimensionally interchangeable per ISO 15552, retaining the same 63mm bore, 60mm stroke, output force, G3/8 port, and mounting interface.
The 63mm bore features a G3/8 port and M16x1.5 rod thread. It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N at 0.9MPa, and a theoretical max of 318kgf at 1.0MPa.
Request a Quote for the SAI63AX60
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63AX60 replacement — usually within 7-8 hours.