This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X130, 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 SID125X130 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 130mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X130, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID125X130 is a discontinued double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. It features a 125mm bore, 130mm stroke, G1/2 port, M27x2 rod thread, and 40mm adjustable cushions. The direct replacement is the SAID125X130, sharing the same interface and force.
This unit lacks a magnet (-S) and cannot accept sensors. The SAI upgrade uses a two-piece Y-shaped piston seal for low start-up pressure. A plain cylinder drifts on air loss; cushions only decelerate, so use SAIL or an external rod lock to hold loads.
| Model | Airtac SID Series Double-Rod Cylinder SID125X130 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X130 |
| Bore size | Ø125 mm |
| Stroke | 130 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID125X130 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 | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
The SAID125X130 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). |
|---|---|
| 125 | Bore size in mm. |
| ×130 | 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 opposing machining heads simultaneously from one piston, utilizing the equal both-ways force to ensure perfectly synchronized cutting cycles.
Lifts and lowers a pallet platform with identical force in both directions, ensuring smooth deceleration at stroke end via the 40mm adjustable cushions.
To replace the discontinued SID125X130, use the SAID125X130 direct: same ISO 15552 mounting, G1/2 port, and 130mm stroke. Size both ways using the equal push/pull force (5734 N @0.5 MPa); if less force is needed, step down to the 100mm bore (3681 N @0.5 MPa), or up to 160mm (9425 N @0.5 MPa). Choose a double-rod when you need anti-rotation, to drive two tools, or to mount a sensor cam on the back rod. Reuse FA, LB, or TC mounts. This SKU has no magnet, so sensing is impossible. For this 130mm stroke side-load is minimal, but for strokes >=300mm ensure guide alignment to prevent rod binding.
Replacement checklist
Yes, the SID125X130 is discontinued. The direct replacement is the SAID125X130, which matches the ISO 15552 interface, bore, stroke, G1/2 port, and mounting hardware.
Force is equal both ways: 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. Speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID125X130 replacement — usually within 7-8 hours.