This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X135TC, 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 SI32X135TC
The AirTAC SI32 Standard Air Cylinder SI32X135TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 135mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X135TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke135 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X135TC
- 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 SI32X135TC
The AirTAC SI32X135TC is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 135 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32X135TC, matching the exact TC trunnion mount, stroke, force, and ISO 15552 interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SI SKU lacks the -S magnet, it cannot accept a sensor.
Airtac SI32 Standard Air Cylinder SI32X135TC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X135TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X135TC |
| Bore size | Ø32 mm |
| Stroke | 135 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 SAI32X135TC 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 SAI32X135TC 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 SI32X135TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×135 | 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 SI32X135TC Is Used
Small Part Ejection
Uses the 402 N push force to reliably eject small machined components from a fixture at the end of the cycle.
Package Diverting
Actuates a lightweight routing gate on a packaging line, benefiting from the 30-800 mm/s speed range.
Clamp Actuation
Secures light workpieces during secondary machining operations using the TC trunnion mount for pivot alignment.
Replacing the Airtac SI32 Standard Air Cylinder SI32X135TC with the SAI32X135TC
To replace the SI32X135TC, order the SAI32X135TC. Verify the ISO 15552 TC trunnion mounting dimensions, 32 mm bore, 135 mm stroke, and G1/8 port (available in PT, G, or NPT threads). Since this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is needed, select an SAI model with the S suffix. For sizing alternatives, neighboring bores offer different force classes, but at 0.5 MPa this 32 mm bore provides 402 N push and 345 N pull. Note that a plain cylinder does not hold load without live air; the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X135TC
- ✓ 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 SI32X135TC FAQ
Yes, the SI32X135TC is discontinued. The direct replacement is the SAI32X135TC. It shares the same ISO 15552 mounting interface, 32 mm bore, 135 mm stroke, force, G1/8 port, and TC trunnion mount, fitting directly into existing fixtures.
The 32 mm bore features a G1/8 port and provides 402 N push and 345 N pull at 0.5 MPa. At 0.7 MPa it pushes 563 N, and 724 N at 0.9 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X135TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X135TC replacement — usually within 7-8 hours.