This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X125, 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 SID Series Double-Rod Cylinder SID100X125
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X125 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 125mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X125, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X125
- 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 SID Series Double-Rod Cylinder SID100X125
The AirTAC SID100X125 is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston. This geometry means both faces use the rod-side area, yielding equal force both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The bore dictates a G1/2 air port, a 25 mm rod with an M20x1.5 thread, and 36 mm adjustable cushions. The direct replacement is the SAID100X125, sharing the same mounting interface, stroke, and force.
Because this SKU lacks a -S magnet, it cannot take a magnetic switch. The SAI replacement upgrades the piston seal with two Y-shaped one-way elements for lower start-up pressure. A plain cylinder drifts on air loss since the cushion only decelerates near stroke end; for held loads use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID100X125 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X125 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X125 |
| Bore size | Ø100 mm |
| Stroke | 125 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 SAID100X125 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 SAID100X125 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID100X125
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SID Series Double-Rod Cylinder SID100X125 Is Used
Twin-Tool Machining Station
Drives two opposing machining heads from one piston, utilizing the equal both-ways force to maintain perfectly synchronized cutting cycles.
Anti-Rotation Transfer Gate
Uses the double-rod geometry to prevent mechanical twist during high-speed part diversion on a 100 mm bore packaging line.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X125 with the SAID100X125
To replace the discontinued SID100X125, order the SAID100X125 (insert an A after the leading S) to reuse the exact ISO 15552 mounting interface, G1/2 ports, and 125 mm stroke. Size both ways by confirming the equal push and pull force of 5153 N @0.7 MPa is sufficient; if not, step to the 125 mm bore or down to the 80 mm bore. A double rod is right when you need anti-rotation stability or must drive two tools from one piston. Reuse FA, LB, or TC mounts. This non-magnetic SKU cannot take sensors. For this 125 mm stroke, side-load is minimal, but for strokes >=300 mm ensure guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X125
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID100X125 FAQ
Yes, the SID100X125 is discontinued. The direct replacement is the SAID100X125, which matches the ISO 15552 mounting interface, 125 mm stroke, G1/2 port, and equal both-ways force.
Force is equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The 100 mm bore fixes the air port at G1/2, uses a 25 mm rod with an M20x1.5 thread, and has 36 mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X125
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X125 replacement — usually within 7-8 hours.