This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32BX115, 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 SI32BX115
The AirTAC SI32 Standard Air Cylinder SI32BX115 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 115mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32BX115, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke115 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX115
- 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 SI32BX115
The AirTAC SI32BX115 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 115mm stroke, and SUS304 stainless steel rod. Delivering 402N push force at 0.5MPa, it is replaced by the SAI32BX115. This direct upgrade matches the G1/8 port, M10x1.25 thread, and mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This non-magnetic SKU cannot take a sensor, unlike the CS1-B/DS1-B switches used on -S models.
Airtac SI32 Standard Air Cylinder SI32BX115 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX115 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX115 |
| Bore size | Ø32 mm |
| Stroke | 115 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 SAI32BX115 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 SAI32BX115 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 SI32BX115
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×115 | 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 SI32BX115 Is Used
Stainless Rod Clamping
Ideal for small fixture clamping requiring corrosion resistance, using the SUS304 rod to push loads up to 241N safely in humid washdown environments.
Light Part Ejection
Provides reliable ejection of lightweight components on assembly lines, utilising the 115mm stroke and 402N push force at 0.5MPa to clear machined parts.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX115 with the SAI32BX115
To replace this SI32BX115 with the SAI32BX115, verify the ISO 15552 mounting interface, 115mm stroke, G1/8 port, and SUS304 rod. This 115mm stroke is non-standard (max standard is 1000mm). For sizing, neighbouring bores offer different forces: a 40mm bore pushes 628N at 0.5MPa, while this 32mm bore pushes 402N. The 115mm stroke exceeds 300mm? No, but always ensure guide support to prevent rod bending. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX115
- ✓ 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 SI32BX115 FAQ
Yes, the AirTAC SI32BX115 is discontinued. The direct replacement is the SAI32BX115. It is dimensionally interchangeable per ISO 15552, maintaining the same 32mm bore, 115mm stroke, G1/8 port, and mounting interface.
This double-acting cylinder has a G1/8 port. Force ratings are: push 402N and pull 345N at 0.5MPa; push 563N at 0.7MPa; push 724N at 0.9MPa; and a theoretical max of 82kgf at 1.0MPa. The speed range is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32BX115
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX115 replacement — usually within 7-8 hours.