This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X625S, 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 SI32 Standard Air Cylinder SI32X625S
The AirTAC SI32 Standard Air Cylinder SI32X625S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 625mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X625S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke625 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X625S
- 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 SI32 Standard Air Cylinder SI32X625S
The AirTAC SI32X625S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 625mm stroke, delivering 402N push at 0.5MPa via a G1/8 port. The direct replacement is SAI32X625S, matching the interface, force and mounts.
The SAI upgrade features two Y-shaped piston seals for low start-up pressure. Options include Viton H seals and SUS304 rods.
Airtac SI32 Standard Air Cylinder SI32X625S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X625S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X625S |
| Bore size | Ø32 mm |
| Stroke | 625 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 SAI32X625S 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 SAI32X625S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32X625S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×625 | 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 SI32 Standard Air Cylinder SI32X625S Is Used
Fixture Actuation
Shifts tooling plates on machining fixtures, relying on the 27mm adjustable cushions for smooth stops.
Replacing the Airtac SI32 Standard Air Cylinder SI32X625S with the SAI32X625S
To replace the SI32X625S, order SAI32X625S to keep the identical ISO 15552 mounting interface, 32mm bore, 625mm stroke, G1/8 port, and magnet for CS1-B/DS1-B switches. If you need more force, the neighbouring 40mm bore yields 628N push at 0.5MPa. Because this is a 625mm stroke, use external guides to prevent rod bending and side-load wear. For load holding on air loss, note that a plain cylinder drifts; the cushion only decelerates. Use an external pilot check valve, or specify the SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X625S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32X625S FAQ
Yes, the SI32X625S is discontinued. The direct replacement is the SAI32X625S. It is dimensionally interchangeable per ISO 15552, keeping the same 32mm bore, 625mm stroke, force, G1/8 port and mounting interface.
The G1/8 port bore delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X625S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X625S replacement — usually within 7-8 hours.