This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X32, 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 SI100 Standard Cylinder SI100X32
The AirTAC Airtac SI100 Standard Cylinder SI100X32 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 32mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X32, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke32 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X32
- 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 SI100 Standard Cylinder SI100X32
The AirTAC SI100X32 is a discontinued double-acting ISO 15552 profile cylinder featuring a 100 mm bore and 32 mm stroke. It delivers a push force of 3927 N and pull force of 3681 N at 0.5 MPa, operating with a G1/2 port and M20x1.5 rod thread. Because this legacy SI series is end-of-life, AirTAC replaced it with the SAI100X32, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI100X32 introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S), meaning it cannot accept CS1-B or DS1-B sensors, and the SAI family now includes lock variants (SAIL, BSAI) the SI line lacked.
Airtac SI100 Standard Cylinder SI100X32 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X32 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X32 |
| Bore size | Ø100 mm |
| Stroke | 32 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100X32 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X32 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X32
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×32 | 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 SI100 Standard Cylinder SI100X32 Is Used
High-Force Clamping
Secures heavy metal castings during CNC machining using the full 3927 N push force at 0.5 MPa within a compact 32 mm stroke.
Pallet Stopping
Acts as a robust stopper for loaded pallets on assembly lines, absorbing kinetic energy with adjustable air cushions.
Press Fit Operations
Drives bearings or pins into housings on automated fixtures, utilizing the 100 mm bore's substantial thrust in tight spaces.
Replacing the Airtac SI100 Standard Cylinder SI100X32 with the SAI100X32
To replace the discontinued SI100X32, order the SAI100X32 direct equivalent, verifying your ISO 15552 mounting interface (LB, FA, TC, etc.), G1/2 port thread (PT, G, or NPT), and 32 mm stroke. Since this SKU has no magnet, it cannot support position sensing; if you require switches, select an SAI100X32-S model and use current AirTAC sensors. For sizing, the 100 mm bore yields 3927 N push at 0.5 MPa; if less force is needed, an 80 mm bore provides 2513 N, while a 125 mm bore offers 6136 N. Remember that a standard cylinder drifts without live air—the cushion only decelerates near stroke end—so for load holding, consider an external pilot check valve, rod lock, or the SAIL/BSAI lock variants. The 32 mm stroke is short, so side-load risks are minimal, but always verify rod alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X32
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X32 FAQ
Yes, the SI100X32 is discontinued. The direct replacement is the AirTAC SAI100X32. It features the same ISO 15552 mounting interface, 100 mm bore, 32 mm stroke, output force, and G1/2 port, fitting directly into existing fixtures.
This double-acting cylinder uses a G1/2 air port. At 0.5 MPa it provides 3927 N push and 3681 N pull force. At 0.7 MPa push is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X32
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X32 replacement — usually within 7-8 hours.