This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X1150STC, 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 SI32X1150STC
The AirTAC SI32 Standard Air Cylinder SI32X1150STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 1150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X1150STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke1150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X1150STC
- 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 SI32X1150STC
The AirTAC SI32X1150STC is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 1150 mm stroke. Generating 402 N push force at 0.5 MPa, it is replaced directly by the SAI32X1150STC. This direct upgrade shares the exact TC trunnion mount, G1/8 port, and stroke, fitting existing fixtures perfectly. Note that 1150 mm exceeds the 1000 mm standard stroke limit for this bore, making it a non-standard or made-to-order length.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. It also adds variants the SI lacked, like the SAIL air-released lock and SAIF integrated valve. The -S suffix means it has a piston magnet for CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI32 Standard Air Cylinder SI32X1150STC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X1150STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X1150STC |
| Bore size | Ø32 mm |
| Stroke | 1150 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 SAI32X1150STC 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 SAI32X1150STC 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 SI32X1150STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×1150 | 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 SI32X1150STC Is Used
Long-Reach Diverting
Use the 1150 mm stroke to push products across wide conveyor belts, utilizing the TC trunnion mount to accommodate the long rod extension.
Material Transfer
Shift light workpieces between parallel processing stations over a long 1.15 meter span where external guides manage the side-load.
Replacing the Airtac SI32 Standard Air Cylinder SI32X1150STC with the SAI32X1150STC
To replace the SI32X1150STC, order the SAI32X1150STC. Confirm the ISO 15552 TC trunnion mounting interface, 32 mm bore, 1150 mm stroke, G1/8 port, and the -S magnet requirement. Because 1150 mm exceeds the 1000 mm max standard stroke for this bore, expect a non-standard or made-to-order unit. At 0.5 MPa it yields 402 N push and 345 N pull; if more force is needed, the neighboring 40 mm bore offers 628 N push. For a 1150 mm stroke, external guides are strongly recommended to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X1150STC
- ✓ 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 SI32X1150STC FAQ
Yes, the SI32X1150STC is discontinued. The direct replacement is the SAI32X1150STC. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 1150 mm stroke, G1/8 port, TC mount, and 402 N force.
This double-acting 32 mm bore cylinder has a G1/8 port. It 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X1150STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X1150STC replacement — usually within 7-8 hours.