This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX275, 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 SI32AX275
The AirTAC SI32 Standard Air Cylinder SI32AX275 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 275mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX275, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke275 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX275
- 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 SI32AX275
The AirTAC SI32AX275 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 275mm stroke. Delivering 402 N push force at 0.5 MPa, it features a SUS420J2 stainless rod, M10x1.25 thread, G1/8 port, and 27mm cushions. The direct replacement is the SAI32AX275, matching the interface, force, and port exactly.
This SKU lacks a magnet and cannot take a sensor. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure. For load holding, note the cushion only decelerates; use an external rod lock or SAIL variant.
Airtac SI32 Standard Air Cylinder SI32AX275 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX275 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX275 |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAI32AX275 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 SAI32AX275 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 SI32AX275
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×275 | 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 SI32AX275 Is Used
Small Part Ejection
Uses the 402 N push force to eject small molded components from a fixture reliably.
Package Diverting
Actuates a routing gate on a conveyor line, with the 275mm stroke clearing the belt path.
Light Clamping
Holds lightweight aluminum extrusions in place for a secondary machining operation.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX275 with the SAI32AX275
To replace the SI32AX275, order the SAI32AX275. Verify the ISO 15552 mounting interface, 32mm bore, 275mm stroke, G1/8 port, and SUS420J2 rod. This non-magnet SKU cannot fit a sensor; if sensing is needed, select an SAI model with an S suffix for current AirTAC switches. The cushion only decelerates; for held loads use a pilot check valve or BSAI clamp-lock. At 275mm stroke, guide external rods to prevent side-load bending. If sizing up, a 40mm bore yields 628 N push; if sizing down, a 32mm bore provides 402 N at 0.5 MPa.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX275
- ✓ 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 SI32AX275 FAQ
Yes, the SI32AX275 is discontinued. The direct replacement is the SAI32AX275. It matches the ISO 15552 mounting interface, 32mm bore, 275mm stroke, force, and G1/8 port, fitting existing fixtures perfectly.
The G1/8 port bore delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. The 275mm stroke is within the 1000mm standard limit.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX275
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX275 replacement — usually within 7-8 hours.