This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X30TC, 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 SI100X30TC
The AirTAC Airtac SI100 Standard Cylinder SI100X30TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 30mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X30TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke30 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X30TC
- 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 SI100X30TC
The AirTAC SI100X30TC is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 30 mm stroke. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X30TC, a direct upgrade retaining the exact ISO 15552 mounting interface, TC trunnion, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors. For load holding, the air cushion only decelerates; use a SAIL lock variant or external pilot check valve.
Airtac SI100 Standard Cylinder SI100X30TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X30TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X30TC |
| Bore size | Ø100 mm |
| Stroke | 30 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 SAI100X30TC 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 SAI100X30TC 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 SI100X30TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×30 | 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 SI100X30TC Is Used
High-Force Clamping
Secures heavy steel plates in machining fixtures using 3927 N of push force at 0.5 MPa.
Short-Stroke Pressing
Performs rapid 30 mm stamping and seating of bearings with a robust 100 mm profile barrel.
Heavy Pallet Halting
Acts as a robust stopper block for loaded pallets, absorbing impact via adjustable air cushions.
Replacing the Airtac SI100 Standard Cylinder SI100X30TC with the SAI100X30TC
To replace the SI100X30TC, order the SAI100X30TC. Confirm the ISO 15552 TC trunnion mount, 100 mm bore, 30 mm stroke, and G1/2 port. Because this SKU lacks the -S magnet, it cannot support position sensing; if switches are needed, select an SAI model with the S suffix for current AirTAC sensors. The 100 mm bore yields 3927 N push at 0.5 MPa; if less force is needed, an 80 mm bore provides 2513 N, while a 125 mm bore offers 6136 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for held loads consider the SAIL or BSAI lock variants, or an external rod lock. The 30 mm stroke is very short, minimizing rod-bending side-load risks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X30TC
- ✓ 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 SI100X30TC FAQ
Yes, the SI100X30TC is discontinued. The direct replacement is the SAI100X30TC. It features the same ISO 15552 mounting interface, 100 mm bore, 30 mm stroke, output force, G1/2 port, and TC trunnion mount, but uses an upgraded two Y-shaped one-way piston seal.
The 100 mm bore uses a G1/2 port. It generates 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X30TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X30TC replacement — usually within 7-8 hours.