This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X50S, 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 SID32X50S
The AirTAC Airtac SID Series Double-Rod Cylinder SID32X50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 50mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAID32X50S
- 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 SID32X50S
The AirTAC SID32X50S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. This means 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 bore is 32 mm, the port is G1/8, and the rod-end thread is M10x1.25. This SID model is discontinued; the direct replacement is the SAID32X50S, matching the interface, stroke, and mounting.
The dual-rod design prevents rotation and lets the back rod carry a sensor cam or drive a second tool. The SAI replacement uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S suffix means a piston magnet is present for legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads on air loss; the 27 mm cushions only decelerate. Use an external rod lock for held loads.
Airtac SID Series Double-Rod Cylinder SID32X50S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID32X50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X50S |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAID32X50S 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 SAID32X50S 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 SID32X50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SID32X50S Is Used
Gripper Synchronization
Drives two opposing tooling arms simultaneously from one piston, ensuring perfectly synchronized gripping without requiring external mechanical linkages.
Anti-Rotation Indexing
The dual-rod geometry prevents piston rotation during travel, maintaining precise angular alignment for indexing or marking heads that cannot tolerate torsional play.
Dual-Sensor Cam Operation
Uses the front rod for the primary work stroke while the rear rod carries a magnet cam, allowing position sensing from the opposite end without interfering with the work area.
Replacing the Airtac SID Series Double-Rod Cylinder SID32X50S with the SAID32X50S
To replace the discontinued SID32X50S, use the SAID32X50S. It is a direct: same ISO 15552 mounting interface, 32 mm bore, 50 mm stroke, G1/8 port, and equal both-ways force. When sizing both ways, verify your push and pull requirements against the 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa ratings; if marginally short, step up to the 40 mm bore. A double rod is right when you need anti-rotation, a back-side sensor cam, or to drive two tools. Mounting options are Basic, FA, LB, and TC. The -S suffix means the magnet is present for switches. For this 50 mm stroke, side-load is minimal, but for strokes >=300 mm, ensure guide alignment to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID32X50S
- ✓ 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 SID32X50S FAQ
Yes, the AirTAC SID32X50S is discontinued. The direct replacement is the SAID32X50S. It shares the same ISO 15552 interface, 32 mm bore, 50 mm stroke, G1/8 port, and mounting, but adds an upgraded piston seal. The SAI family also adds SAIL and BSAI lock variants the SI line lacked.
Because it is a double-rod cylinder, force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. It operates at 0.15-1.0 MPa with a speed range of 30-800 mm/s. The 27 mm cushions only decelerate; they do not hold loads on air loss.
Related AirTAC SAI Cylinders
Request a Quote for the SAID32X50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X50S replacement — usually within 7-8 hours.