This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X510, 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 SI100X510
The AirTAC SI100 Standard Cylinder SI100X510 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 510mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X510, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke510 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X510
- 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 SI100X510
The AirTAC SI100X510 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 510mm stroke. Delivering 3927 N push force at 0.5 MPa via a G1/2 port, it is replaced by the SAI100X510. This direct successor shares identical mounting, stroke, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnet SKU cannot accept a sensor.
Airtac SI100 Standard Cylinder SI100X510 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X510 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X510 |
| Bore size | Ø100 mm |
| Stroke | 510 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 SAI100X510 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 SAI100X510 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 SI100X510
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×510 | 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 SI100X510 Is Used
Pallet Diversion
Pushes heavy pallets sideways across transfer lines using 3927 N of thrust at 0.5 MPa over a 510 mm travel distance.
Press Ejection
Ejects formed metal parts from stamping presses, relying on adjustable end cushions to decelerate the 25 mm rod smoothly.
Replacing the Airtac SI100 Standard Cylinder SI100X510 with the SAI100X510
To replace the SI100X510, order SAI100X510 confirming the ISO 15552 interface, 100mm bore, 510mm stroke, G1/2 port, and mounting. Neighbouring bores: 80mm yields 2513 N [email protected], while 125mm yields 6136 N. This non-magnet SKU cannot take a switch. A 510mm stroke risks rod bending; use external guides to prevent side-load damage. The cushion only decelerates; it does not hold load. For static holding on air loss, use an external pilot check valve or the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X510
- ✓ 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 SI100X510 FAQ
Yes, the SI100X510 is discontinued. The direct replacement is the SAI100X510, which shares the same ISO 15552 mounting interface, 100 mm bore, 510 mm stroke, output force, and G1/2 port. You can install it directly into existing fixtures.
This double-acting cylinder 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 maximum theoretical force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X510
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X510 replacement — usually within 7-8 hours.