This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X25LB, 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 SI32X25LB
The AirTAC SI32 Standard Air Cylinder SI32X25LB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 25mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X25LB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke25 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X25LB
- 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 SI32X25LB
The AirTAC SI32X25LB is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 25mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the direct replacement SAI32X25LB. The SAI upgrade features 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 take a CS1-B/DS1-B sensor. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding use the SAIL lock variant or a pilot check valve.
Airtac SI32 Standard Air Cylinder SI32X25LB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X25LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X25LB |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAI32X25LB 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 SAI32X25LB 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 SI32X25LB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 SI32X25LB Is Used
Short-Stroke Ejection
Ideal for popping small parts out of machining fixtures using its 25mm stroke and 402N push force at 0.5MPa.
Small Part Sorting
Provides rapid 30-800mm/s actuation for diverting lightweight components on assembly lines without needing sensing.
Clamp Actuation
Serves well as a compact LB-foot mounted clamp for holding workpieces during light secondary operations.
Replacing the Airtac SI32 Standard Air Cylinder SI32X25LB with the SAI32X25LB
To replace this SI32X25LB, order the SAI32X25LB keeping the LB foot mount, 32mm bore, 25mm stroke and G1/8 port. The SAI is dimensionally interchangeable per ISO 15552. If you need more force, the neighbouring 40mm bore gives 628N [email protected]; if less space is available, confirm smaller options. For self-valve needs consider the SAIF (bores 32-100), and for clamping use the BSAI variant. Remember this no-S SKU cannot accept a sensor.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X25LB
- ✓ 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 SI32X25LB FAQ
Yes, the SI32X25LB is discontinued. The direct replacement is the SAI32X25LB, which shares the identical ISO 15552 mounting interface, 32mm bore, 25mm stroke, force and G1/8 port.
This double-acting cylinder has a G1/8 port and delivers 402N push / 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X25LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X25LB replacement — usually within 7-8 hours.