This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X150LB, 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 SI32X150LB
The AirTAC SI32 Standard Air Cylinder SI32X150LB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X150LB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X150LB
- 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 SI32X150LB
The AirTAC SI32X150LB is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 150 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32X150LB, matching the exact LB foot mounting, M10x1.25 rod thread and 27 mm cushions.
Because this SKU lacks the -S magnet, it cannot accept a CS1-B or DS1-B sensor. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. For high heat, Viton H seals raise the limit to 150 C.
Airtac SI32 Standard Air Cylinder SI32X150LB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X150LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X150LB |
| Bore size | Ø32 mm |
| Stroke | 150 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 SAI32X150LB 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 SAI32X150LB 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 SI32X150LB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×150 | 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 SI32X150LB Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably kick lightweight machined components out of a fixture.
Package Diverting
Actuates a routing gate along a packaging line, fitting neatly within the 150 mm stroke envelope.
Replacing the Airtac SI32 Standard Air Cylinder SI32X150LB with the SAI32X150LB
To replace this SI32X150LB, order the SAI32X150LB and confirm the ISO 15552 LB foot interface, 150 mm stroke and G1/8 port. This no-magnet version cannot hold a position switch. 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 lock variant. At 150 mm stroke, rod bending is low, but ensure rigid LB mounting to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X150LB
- ✓ 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 SI32X150LB FAQ
Yes, the AirTAC SI32X150LB is discontinued. The direct replacement is the SAI32X150LB. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 150 mm stroke, LB foot mount, G1/8 port and 402 N force.
This double-acting 32 mm bore cylinder uses a G1/8 port. It provides a push force of 402 N and pull of 345 N at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X150LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X150LB replacement — usually within 7-8 hours.