This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X125S, 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 SID100X125S
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X125S 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 SAID100X125S, 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 → SAID100X125S
- 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 SID100X125S
The AirTAC SID100X125S is a discontinued double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, making push and pull force equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. It features a 100mm bore, G1/2 air port, M20x1.5 rod-end thread, and 36mm adjustable air cushions at each end. The direct replacement is the SAID100X125S, sharing the exact ISO 15552 mounting interface, stroke, and force.
The SAI replacement uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. A double-rod design prevents rod rotation and lets the back rod carry a sensor cam or drive a second tool. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads on air loss; cushions only decelerate, so use an external rod lock or SAIL/BSAI variant for holding.
Airtac SID Series Double-Rod Cylinder SID100X125S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X125S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X125S |
| 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 SAID100X125S 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 SAID100X125S 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 SID100X125S
| 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 SID100X125S Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously using both rod ends, ensuring perfectly synchronized cutting cycles with equal push and pull force.
Anti-Rotation Transfer Gate
Moves a transfer gate on a packaging line without rotational drift, leveraging the rigid double-rod construction for stable product routing.
Symmetric Lift Platform
Lifts a work platform vertically with equal force in both directions, using the back rod to actuate an external cam for a legacy CS1-B sensor.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X125S with the SAID100X125S
To replace the discontinued SID100X125S, use the SAID100X125S direct: insert an A after the leading S, keeping the bore, stroke, and -S magnet identical. Size both ways by checking neighbour bores (80mm or 125mm) against your equal-both-ways force requirement. A double rod is right when you need anti-rotation, a back-end sensor cam, or dual-tool driving. Mounting uses FA, LB, or TC brackets on the ISO 15552 interface. The -S magnet enables position sensing. For stroke lengths >=300mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X125S
- ✓ 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 SID100X125S FAQ
Yes, the AirTAC SID100X125S is discontinued. The direct replacement is the SAID100X125S. It shares the same ISO 15552 interface, 100mm bore, 125mm stroke, G1/2 port, and mounting, but features an upgraded two Y-shaped one-way piston seal for longer life.
Because it is a double-rod cylinder, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X125S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X125S replacement — usually within 7-8 hours.