This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X250, 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 SID32X250
The AirTAC Airtac SID Series Double-Rod Cylinder SID32X250 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 250mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X250, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAID32X250
- 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 SID32X250
The AirTAC SID32X250 is a discontinued double-acting double-rod ISO 15552 cylinder. A rod exits both ends on one piston, so both faces use the rod-side area, making push and pull force equal at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The direct replacement is the SAID32X250, sharing the same 32 mm bore, 250 mm stroke, G1/8 air port, and mounting interface. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life.
This non-magnetic SKU cannot take a sensor. The cylinder operates at 0.15-1.0 MPa with a 27 mm adjustable air cushion at each end. Note that a plain cylinder does not hold its load on air loss; the cushion only decelerates near stroke end, so use an external rod lock or SAIL variant for held loads.
Airtac SID Series Double-Rod Cylinder SID32X250 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID32X250 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X250 |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAID32X250 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAID32X250 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 SID32X250
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SID32X250 Is Used
Synchronized Tool Driving
Drives two separate operations simultaneously from one piston, utilizing the equal push and pull force on both rod ends for synchronized machining or forming tasks.
Anti-Rotation Guiding
The dual-rod geometry resists torsional deflection, maintaining precise linear alignment for components that require strict anti-rotation stability during extension and retraction.
Symmetrical Transfer
Transfers workpieces symmetrically from either side of a machine envelope, using the equal both-ways force to ensure consistent placement without differential thrust.
Replacing the Airtac SID Series Double-Rod Cylinder SID32X250 with the SAID32X250
To replace the discontinued SID32X250, use the direct replacement SAID32X250, matching the 32 mm bore, 250 mm stroke, M10x1.25 rod thread, and G1/8 port. Size both ways by checking neighbouring bores while relying on the equal both-ways force. Choose a double-rod cylinder when you need anti-rotation stability or to drive two tools. Reuse FA, LB, or TC mounts via the ISO 15552 interface. Because this SKU has no -S magnet, it cannot take a switch. For stroke lengths over 300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID32X250
- ✓ 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 SID32X250 FAQ
Yes, the SID32X250 is discontinued. The direct replacement is the SAID32X250. It shares the same ISO 15552 interface, 32 mm bore, 250 mm stroke, G1/8 port, and equal both-ways force.
The SID32X250 provides equal force both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The fixed air port is G1/8. It operates at 0.15-1.0 MPa with a 27 mm adjustable cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID32X250
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X250 replacement — usually within 7-8 hours.