This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X250SH, 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 SI32X250SH
The AirTAC SI32 Standard Air Cylinder SI32X250SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 250mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X250SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X250SH
- 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 SI32X250SH
The AirTAC SI32X250SH is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 250 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32X250SH, retaining the exact ISO 15552 mounting interface, stroke, force, and accessories. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This -H variant uses Viton seals for 0-150 C heat, and the -S magnet works with CS1-B/DS1-B sensors.
The SAI family also introduces the SAIL lock, SAIF valve, and BSAI clamp-lock variants unavailable in the SI line.
Airtac SI32 Standard Air Cylinder SI32X250SH Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X250SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X250SH |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAI32X250SH 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 SAI32X250SH 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 SI32X250SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SI32X250SH Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to eject small molded components from a fixture reliably.
Package Diverting
Actuates a diverting gate along a packaging line, safely moving light boxes with a 241 N working load.
High-Temp Gating
The Viton H seal handles 0-150 C ambient heat near ovens, shifting lightweight metal trays precisely.
Replacing the Airtac SI32 Standard Air Cylinder SI32X250SH with the SAI32X250SH
To replace the SI32X250SH, order the SAI32X250SH. Confirm the ISO 15552 mounting interface, 32 mm bore, 250 mm stroke, G1/8 port (PT/G/NPT threads), and mounting accessory. The -S magnet enables current AirTAC switches (replacing legacy CS1-B/DS1-B), and the -H seal handles 0-150 C heat. If you need more force, the neighbouring 40 mm bore yields 628 N push at 0.5 MPa. At 250 mm stroke, use guide rails to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X250SH
- ✓ 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 SI32X250SH FAQ
Yes, the SI32X250SH is discontinued. The direct replacement is the SAI32X250SH. It shares the same ISO 15552 mounting interface, 32 mm bore, 250 mm stroke, force, and G1/8 port, fitting existing fixtures perfectly.
The 32 mm bore uses a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical maximum of 82 kgf at 1.0 MPa. The rod is 12 mm with an M10x1.25 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X250SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X250SH replacement — usually within 7-8 hours.