This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X400TC, 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 SI32X400TC
The AirTAC SI32 Standard Air Cylinder SI32X400TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 400mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X400TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X400TC
- 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 SI32X400TC
The AirTAC SI32X400TC is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 400 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. AirTAC replaced it with the SAI32X400TC, a direct upgrade sharing the same TC trunnion mounting, bore, and output force.
The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. For sensing, this specific SKU lacks a magnet and cannot accept a CS1-B/DS1-B switch.
Airtac SI32 Standard Air Cylinder SI32X400TC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X400TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X400TC |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAI32X400TC 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 SAI32X400TC 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 SI32X400TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SI32X400TC Is Used
Light-Part Ejection
Uses the 402 N push force at 0.5 MPa to push small molded parts off a conveyor belt into a sorting bin.
Package Diverting
Employs the 400 mm stroke and TC trunnion mount to actuate a diverting arm for lightweight cardboard packages.
Fixture Positioning
Moves lightweight tooling carts or fixture plates along a guided track, relying on external guides to prevent rod bending.
Replacing the Airtac SI32 Standard Air Cylinder SI32X400TC with the SAI32X400TC
To replace the SI32X400TC, order the SAI32X400TC. Confirm the ISO 15552 TC trunnion interface, 32 mm bore, 400 mm stroke, and G1/8 port. This non-magnet SKU cannot support a sensor; if position detection is needed, select an SAI equivalent with an S suffix. For sizing, the 32 mm bore yields 402 N push at 0.5 MPa; if less force is acceptable, a 25 mm bore works, while a 40 mm bore provides 628 N. Because the stroke is 400 mm, use an external guide to prevent rod bending and side-load wear. The air cushion only decelerates the load; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X400TC
- ✓ 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 SI32X400TC FAQ
Yes, the SI32X400TC is discontinued. The direct replacement is the SAI32X400TC. It shares the same ISO 15552 TC mounting interface, 32 mm bore, 400 mm stroke, G1/8 port, and output force, fitting existing fixtures perfectly.
This double-acting cylinder features a G1/8 port. It delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and 724 N push at 0.9 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X400TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X400TC replacement — usually within 7-8 hours.