This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X30, 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 SI100X30
The AirTAC SI100 Standard Cylinder SI100X30 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 SAI100X30, 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 → SAI100X30
- 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 SI100X30
The AirTAC SI100X30 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 30 mm stroke, delivering 3927 N push force at 0.5 MPa. The direct replacement is the SAI100X30, which shares the exact same ISO 15552 mounting interface, G1/2 port, and output force. This SKU lacks the -S magnet and therefore cannot accept a position sensor.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent from the legacy SI line.
Airtac SI100 Standard Cylinder SI100X30 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X30 |
| 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 SAI100X30 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 SAI100X30 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 SI100X30
| 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 SI100X30 Is Used
Heavy-Duty Clamping
Applies 3927 N of push force at 0.5 MPa to secure large steel fabrications during heavy machining operations.
Short-Stroke Pressing
Executes high-force 30 mm pressing and seating tasks for industrial bearing and bushing insertion assemblies.
Robotic End Effectors
Provides reliable actuation for robust gripper jaws manipulating heavy cast components on automated lines.
Replacing the Airtac SI100 Standard Cylinder SI100X30 with the SAI100X30
To replace this SI100X30, order the SAI100X30 and confirm your ISO 15552 mounting accessory (LB, FA, TC, etc.) and G1/2 port threads (PT, G, or NPT). This non-magnet model cannot host a sensor; if switching is needed, select an SAI -S SKU and use current AirTAC switches instead of legacy CS1-B/DS1-B units. Sizing both ways: the neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while the 125 mm bore yields 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so for load holding consider the SAIL lock variant or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X30
- ✓ 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 SI100X30 FAQ
Yes, the SI100X30 is discontinued. The direct replacement is the SAI100X30. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 30 mm stroke, G1/2 port, and mounting interface.
It features a G1/2 port and delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a maximum theoretical force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X30
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X30 replacement — usually within 7-8 hours.