This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X500TC, 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 SI63X500TC
The AirTAC Airtac SI63 Standard Cylinder SI63X500TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X500TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X500TC
- 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 SI63X500TC
The AirTAC SI63X500TC is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 500mm stroke. It delivers 1559N push force at 0.5MPa through a G3/8 port. The direct replacement is the SAI63X500TC, matching the exact TC trunnion mount, M16x1.5 rod thread, and output force.
This SAI upgrade features a redesigned piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. For load holding, note that a standard cylinder drifts without live air; use an external rod lock or the SAIL/BSAI lock variants. This specific SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X500TC Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X500TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X500TC |
| Bore size | Ø63 mm |
| Stroke | 500 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 SAI63X500TC 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 SAI63X500TC 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 SI63X500TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×500 | 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 SI63X500TC Is Used
Long-Stroke Material Transfer
Moves heavy pallets along an assembly line using the 500mm stroke and 1559N push force, with TC trunnion mounting accommodating structural misalignment.
Vertical Press Diving
Provides steady downward clamping pressure, leveraging the 2182N push force at 0.7MPa to seat components securely before fastening.
Replacing the Airtac SI63 Standard Cylinder SI63X500TC with the SAI63X500TC
To replace the SI63X500TC, order the SAI63X500TC. Confirm the ISO 15552 TC trunnion mounting interface, 63mm bore, 500mm stroke, G3/8 port, and M16x1.5 rod thread. Because this SKU lacks the -S magnet, it cannot support position sensing; if switches are needed, order the SAI63X500TCS. If sizing up or down, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore yields 2513N. For the 500mm stroke, use an external guide to prevent rod bending and side-load damage. The air cushion only decelerates at stroke end; for fail-safe load holding, select the SAIL or BSAI lock variant, or add a pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X500TC
- ✓ 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 SI63X500TC FAQ
Yes, the SI63X500TC is discontinued. The direct replacement is the SAI63X500TC. It is dimensionally interchangeable per ISO 15552, retaining the same 63mm bore, 500mm stroke, G3/8 port, TC trunnion mount, and output force, so it drops directly into existing fixtures.
The 63mm bore uses a G3/8 air port. At 0.5MPa it provides 1559N push and 1402N pull force. At 0.7MPa push is 2182N, and at 0.9MPa it is 2805N. The theoretical maximum force is 318kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X500TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X500TC replacement — usually within 7-8 hours.