This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X175S, 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 SID32X175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 175mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X175S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID32X175S is a discontinued ISO 15552 double-acting double-rod cylinder. A Ø12 mm rod exits both ends of the 32 mm bore, driving equal push and pull force (345 N at 0.5 MPa) using the rod-side area on both faces. The direct replacement is the SAID32X175S: it preserves the 175 mm stroke, G1/8 port, M10x1.25 thread and ISO 15552 mounting interface. The SAI family upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
Because the second rod acts as an anti-rotation guide and can carry a sensor cam, the unit suits compact multi-tool drives. 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; the 27 mm adjustable cushions only decelerate near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID32X175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X175S |
| Bore size | Ø32 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID32X175S 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAID32X175S 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). |
|---|---|
| 32 | Bore size in mm. |
| ×175 | 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).
Simultaneously pushes and pulls a part between two machining stations using equal force on both faces, preventing mid-stroke rotation.
Drives opposing mechanical jaws from opposite ends of the 32 mm bore, ensuring perfectly synchronized clamping without external linkages.
Uses the rear rod extension to mount a legacy CS1-B/DS1-B sensor cam while the front rod actuates a lane diverter on a packaging line.
To replace the discontinued SID32X175S, install the SAID32X175S directly into your existing ISO 15552 fixture using FA, LB or TC mounts. The double-rod layout provides equal 345 N force both ways at 0.5 MPa; if you need less force, step down to the 25 mm bore, or step up to the 40 mm bore (528 N) for more thrust. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. Retain the -S suffix for the piston magnet (compatible with legacy CS1-B/DS1-B switches). For this 175 mm stroke, side-load is minimal, but for any stroke over 300 mm add external guide rails to prevent rod binding.
Replacement checklist
Yes, the SID32X175S is discontinued. The direct replacement is the SAID32X175S. It shares the same ISO 15552 interface, 32 mm bore, 175 mm stroke, G1/8 port and equal-both-ways force, but adds an upgraded Y-shaped piston seal for longer life.
Force is equal both ways: 345 N at 0.5 MPa, 483 N at 0.7 MPa, and 621 N at 0.9 MPa. Operating pressure is 0.15-1.0 MPa with a speed range of 30-800 mm/s. The 27 mm adjustable air cushions only decelerate the load near stroke end; they do not hold the load on air loss.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X175S replacement — usually within 7-8 hours.