This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X70S, 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 SI32X70S
The AirTAC SI32 Standard Air Cylinder SI32X70S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 70mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X70S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke70 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X70S
- 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 SI32X70S
The AirTAC SI32X70S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 70mm stroke. It delivers 402N push and 345N pull at 0.5MPa, operating at 30-800mm/s through a G1/8 port. The direct replacement is the SAI32X70S, matching the interface, force, and mounting.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32X70S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X70S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X70S |
| Bore size | Ø32 mm |
| Stroke | 70 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 SAI32X70S 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 SAI32X70S 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 SI32X70S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 SI32X70S Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight machined components out of a fixture.
Gripping Actuation
Drives small pneumatic grippers where the 345N pull force and compact 32mm profile barrel fit tight assembly cells.
Diverting Mechanism
Powers a short 70mm stroke diverter arm on a conveyor, benefiting from the 30-800mm/s speed range.
Replacing the Airtac SI32 Standard Air Cylinder SI32X70S with the SAI32X70S
To replace the SI32X70S, order the SAI32X70S. Confirm the ISO 15552 mounting interface, 32mm bore, 70mm stroke, G1/8 port (PT/G/NPT), and your mounting accessory. The -S magnet enables CS1-B/DS1-B switches. For higher force, the neighbouring 40mm bore offers 628N push at 0.5MPa. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X70S
- ✓ 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 SI32X70S FAQ
Yes, the SI32X70S is discontinued. The direct replacement is the SAI32X70S. It is dimensionally interchangeable per ISO 15552, keeping the same 32mm bore, 70mm stroke, G1/8 port, and mounting fixtures.
It has a G1/8 port. The force ratings are 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Request a Quote for the SAI32X70S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X70S replacement — usually within 7-8 hours.