This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X320TC, 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 SI100X320TC
The AirTAC Airtac SI100 Standard Cylinder SI100X320TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 320mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X320TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke320 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X320TC
- 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 SI100X320TC
The AirTAC SI100X320TC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 320mm stroke, delivering a push force of 3927 N at 0.5 MPa. AirTAC replaced it with the SAI100X320TC, a direct upgrade retaining the exact G1/2 port, M20x1.5 rod thread, and TC trunnion mounting interface.
The SAI replacement introduces an upgraded piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet, so it cannot accept CS1-B or DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X320TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X320TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X320TC |
| Bore size | Ø100 mm |
| Stroke | 320 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 SAI100X320TC 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 SAI100X320TC 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 SI100X320TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×320 | 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 SI100X320TC Is Used
Heavy Press Staging
Ideal for positioning heavy stamping blanks at press inlets, utilizing the 3927 N push force to shuttle 200 kg assemblies securely into the tooling area.
Pallet Diversion
Deploys via TC trunnion mounting to lift and divert loaded pallets from main conveyor lines, handling high mass flows without requiring intermediate stops.
Vertical Lift Gates
Actuates heavy material handling gates where the 320mm stroke provides the necessary clearance, provided external guides are used to manage rod side-loads.
Replacing the Airtac SI100 Standard Cylinder SI100X320TC with the SAI100X320TC
To replace the SI100X320TC, order the SAI100X320TC and confirm the ISO 15552 TC trunnion interface, 100mm bore, 320mm stroke, G1/2 port, and thread type (PT/G/NPT). Because this SKU lacks the -S magnet, it cannot support position sensing; if switches are needed, select a magnet-equipped SAI model and use current AirTAC switches. Sizing both ways: the neighboring 80mm bore yields 2513 N push at 0.5 MPa, while the 125mm bore yields 6136 N. For load holding, note that a plain cylinder drifts on air loss—the 36mm adjustable cushions only decelerate near stroke ends. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants for secure holding. Finally, at 320mm stroke, use external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X320TC
- ✓ 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 SI100X320TC FAQ
Yes, the AirTAC SI100X320TC is discontinued. The direct replacement is the SAI100X320TC. It is dimensionally interchangeable per ISO 15552, maintaining the same 100mm bore, 320mm stroke, G1/2 port, TC trunnion mount, and output force, so it drops directly into existing fixtures.
This double-acting cylinder features a G1/2 air port and M20x1.5 rod thread. It delivers a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa the push force is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X320TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X320TC replacement — usually within 7-8 hours.