This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X60, 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 SID125X60 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 60mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X60, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID125X60 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force remains equal at 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. This 125 mm bore uses a G1/2 port, a 32 mm rod with an M27x2 thread, and 40 mm adjustable cushions. The SID line is discontinued; the direct replacement is the SAID125X60, matching the interface, bore, stroke, and force exactly.
The SAID successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. This non-magnetic SKU cannot carry a switch. A double rod prevents rotation and lets the rear rod drive a second tool. Note that air cushions only decelerate; use an external rod lock or SAIL/BSAI variant to hold loads on air loss.
| Model | Airtac SID Series Double-Rod Cylinder SID125X60 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X60 |
| Bore size | Ø125 mm |
| Stroke | 60 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 SAID125X60 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 SAID125X60 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. |
| ×60 | 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 using both protruding rods, ensuring perfectly synchronized cutting cycles with equal push and pull force.
Uses the dual-rod geometry to prevent mechanical twisting during rapid part diversion on a 125 mm bore conveyor line, maintaining strict alignment without external guides.
Indexes heavy pallets by pushing and retracting with identical 5734 N force at 0.5 MPa, ensuring consistent placement regardless of the stroke direction.
To replace the discontinued SID125X60, install the SAID125X60 directly—it preserves the ISO 15552 mounting interface, G1/2 port, and equal-both-ways force. Choose a double-rod configuration when you need anti-rotation stability or must drive two tools from one piston. Standard FA, LB, or TC mounts can be reused. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors. For higher force demands, neighboring bores (100 mm or 160 mm) offer different equal push/pull ratings. Since the 60 mm stroke is under 300 mm, side-load risks are minimal, but always verify guiding. Remember, a plain cylinder drifts without live air; for load-holding, select the SAIL or BSAI lock variant or add an external rod lock.
Replacement checklist
Yes, the SID125X60 is discontinued. The direct replacement is the SAID125X60, which matches the ISO 15552 mounting interface, 125 mm bore, 60 mm stroke, G1/2 port, and equal-both-ways force. The SAID family also adds upgraded Y-shaped piston seals and new SAIL/BSAI lock variants.
The 125 mm bore features a G1/2 air port, a 32 mm rod, and an M27x2 thread. Because it is a double-rod cylinder, 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 SAID125X60 replacement — usually within 7-8 hours.