This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X620TC, 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 SI100X620TC
The AirTAC Airtac SI100 Standard Cylinder SI100X620TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 620mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X620TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke620 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X620TC
- 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 SI100X620TC
The AirTAC SI100X620TC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 620mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X620TC, a direct upgrade retaining the exact TC trunnion mount, M20x1.5 rod thread, and 36mm cushions.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Since this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors. For load holding, note that standard cylinders drift without live air; use the SAIL lock or BSAI clamp-lock variants.
Airtac SI100 Standard Cylinder SI100X620TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X620TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X620TC |
| Bore size | Ø100 mm |
| Stroke | 620 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 SAI100X620TC 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 SAI100X620TC 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 SI100X620TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×620 | 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 SI100X620TC Is Used
Heavy Material Transfer
Drives large pallets or heavy workpieces along assembly lines, utilizing the 3927N push force at 0.5MPa to overcome high sliding friction over extended 620mm movements.
Long-Stroke Pressing
Applies consistent downward clamping or pressing force in automated jigs, where the 36mm adjustable air cushions safely decelerate the 100mm piston at the end of its 620mm travel.
Pallet Positioning
Indexes heavy loads into machining stations using the TC trunnion mount to accommodate pivoting, requiring external guides to manage the side-load risks of the 620mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100X620TC with the SAI100X620TC
To replace the SI100X620TC, order the SAI100X620TC. Confirm the ISO 15552 TC trunnion interface, 100mm bore, 620mm stroke, G1/2 port (PT/G/NPT thread), and 36mm cushions match your fixture. Because this SKU has no -S magnet, it cannot support position sensing; add the S suffix if you need CS1-B/DS1-B switches. For sizing, a 100mm bore yields 5497N at 0.7MPa; dropping to an 80mm bore gives 3518N. With a 620mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder does not hold load without air; for static holding, select the SAIL or BSAI lock variant, or add a pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X620TC
- ✓ 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 SI100X620TC FAQ
Yes, the AirTAC SI100X620TC is discontinued. The direct replacement is the SAI100X620TC. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 620mm stroke, G1/2 port, TC mount, and output force for a seamless fixture swap.
The bore is 100mm with a G1/2 air port and M20x1.5 rod thread. Force ratings are: 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical maximum of 801kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X620TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X620TC replacement — usually within 7-8 hours.