This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X500TC, 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 SI100 Standard Cylinder SI100X500TC
The AirTAC Airtac SI100 Standard Cylinder SI100X500TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X500TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X500TC
- 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 SI100 Standard Cylinder SI100X500TC
The AirTAC SI100X500TC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 500mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X500TC, retaining the exact TC trunnion mount, M20x1.5 rod thread, and 36mm cushions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Since this specific SI SKU lacks a magnet (-S), it cannot accept a CS1-B/DS1-B sensor. The SAI family also adds SAIL lock and BSAI clamp-lock variants absent in the SI line.
Airtac SI100 Standard Cylinder SI100X500TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X500TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X500TC |
| Bore size | Ø100 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100X500TC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X500TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X500TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | 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 SI100 Standard Cylinder SI100X500TC Is Used
Pallet Diversion
Actuates heavy lane diverters on packaging lines, using the 3927N thrust to push fully loaded pallets smoothly into secondary routing channels.
Press Ejection
Drives lower ejector plates in stamping presses, relying on the 36mm adjustable air cushions to decelerate the 500mm travel at high speeds.
Roller Lane Stops
Raises and lowers physical stop gates in gravity roller conveyors, securely halting 200kg material totes at processing stations.
Replacing the Airtac SI100 Standard Cylinder SI100X500TC with the SAI100X500TC
To replace the SI100X500TC, order the SAI100X500TC. Verify the ISO 15552 TC trunnion interface, 100mm bore, 500mm stroke, G1/2 port (PT/G/NPT thread options), and M20x1.5 rod. Because this SKU has no magnet, it cannot support position sensing; add the -S suffix on the SAI if you need CS1-B/DS1-B switches. Sizing both ways: a neighbouring 80mm bore yields 2513N push at 0.5MPa, while stepping up to 125mm provides 6136N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. Finally, at 500mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X500TC
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X500TC FAQ
Yes, the SI100X500TC is discontinued. The direct replacement is the SAI100X500TC. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 500mm stroke, 7068N force, G1/2 port, and TC trunnion mount.
This double-acting cylinder uses a G1/2 port. It generates 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X500TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X500TC replacement — usually within 7-8 hours.