This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X260STC, 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.

The AirTAC Airtac SID Series Double-Rod Cylinder SID100X260STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 260mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X260STC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID100X260STC is a discontinued double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring push and pull force are equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The direct replacement is the SAID100X260STC, matching the 100mm bore, 260mm stroke, G1/2 port, and TC mounting interface. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life.
This 100mm bore features a Ø25mm piston rod, M20x1.5 rod-end thread, and 36mm adjustable air cushions at each end. The rear rod can carry a sensor cam or drive two tools simultaneously, and ISO 15552 mounting hardware like TC can be reused. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SID Series Double-Rod Cylinder SID100X260STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X260STC |
| Bore size | Ø100 mm |
| Stroke | 260 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 SAID100X260STC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAID100X260STC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×260 | 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).
Drives two synchronized workpieces from opposite rod ends to halve cycle time on packaging conveyors using equal both ways force.
The twin-rod architecture prevents mechanical twist during heavy clamping, maintaining jaw alignment without external guides.
Uses the extended rear rod to carry a legacy CS1-B/DS1-B sensor cam, freeing the primary tool face for the work load.
To replace the discontinued SID100X260STC, specify the SAID100X260STC, which is a direct upgrade retaining the ISO 15552 interface, 260mm stroke, and TC mounting accessory. Size both ways by confirming the 100mm bore provides 5153 N of equal force in both directions; if less force is acceptable, neighbouring bores like 80mm (3175 N @0.7 MPa) or 125mm (8028 N @0.7 MPa) can be evaluated. A double-rod design is the right choice when you need anti-rotation stability, dual-tool driving, or space to mount a sensor cam on the back rod. Select the -S option for the piston magnet if position sensing is required. For this 260mm stroke, side-load alignment should be carefully controlled to prevent rod binding, and because air cushions only decelerate near stroke end, an external rod lock or pilot-operated check valve is required for load holding on air loss.
Replacement checklist
Yes, the AirTAC SID100X260STC is discontinued. The direct replacement is the SAID100X260STC. It shares the same ISO 15552 interface, 100mm bore, 260mm stroke, G1/2 port, and TC mounting, while adding an upgraded two Y-shaped one-way piston seal for longer life and lower start-up pressure.
Being double-rod, force is equal both ways: 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 Ø25mm rod with M20x1.5 thread, 36mm adjustable cushions, and a speed range of 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X260STC replacement — usually within 7-8 hours.