This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX950, 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 SI32AX950
The AirTAC SI32 Standard Air Cylinder SI32AX950 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 950mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX950, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke950 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX950
- 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 SI32AX950
The AirTAC SI32AX950 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 950mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port and features a SUS420J2 stainless piston rod. AirTAC replaced this legacy unit with the SAI32AX950, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, output force and port size.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this SKU lacks the -S magnet, it cannot accept a CS1-B or DS1-B sensor. Note the 950mm stroke requires external guides to prevent rod bending.
Airtac SI32 Standard Air Cylinder SI32AX950 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX950 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX950 |
| Bore size | Ø32 mm |
| Stroke | 950 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 SAI32AX950 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 SAI32AX950 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 SI32AX950
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×950 | 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 SI32AX950 Is Used
Long-Stroke Diversion
Pushes light packages across a 950mm conveyor lane using the 402N push force, requiring external guides to prevent rod bending over the extended length.
Stainless Rod Actuation
Drives small tooling stages in humid washdown areas using the SUS420J2 stainless piston rod, where the default carbon steel rod would risk corrosion.
Low-Force Ejection
Ejects light foam or cardboard parts from a fixture at 0.5MPa, safely operating within the 241N working load limit for delicate materials.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX950 with the SAI32AX950
To replace the SI32AX950, order the SAI32AX950 and confirm the ISO 15552 mounting fixture, 32mm bore, 950mm stroke, G1/8 port (PT/G/NPT thread) and SUS420J2 rod. This SKU has no -S magnet, so magnetic switches like the CS1-B cannot be fitted. For sizing, the 32mm bore yields 402N push at 0.5MPa; dropping to a 25mm bore loses too much force, while a 40mm bore offers 628N if space allows. The 950mm stroke demands external guides to manage side-load and rod-bending risks. A plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX950
- ✓ 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 SI32AX950 FAQ
Yes, the SI32AX950 is discontinued. The direct replacement is the SAI32AX950. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 950mm stroke, force, G1/8 port and mounting interface, but adds an upgraded two Y-shaped one-way piston seal.
This double-acting 32mm bore cylinder uses a G1/8 port. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. It features a 12mm SUS420J2 stainless rod and operates at 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX950
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX950 replacement — usually within 7-8 hours.