This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X86S, 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 SI100X86S
The AirTAC Airtac SI100 Standard Cylinder SI100X86S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 86mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X86S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke86 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X86S
- 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 SI100X86S
The AirTAC SI100X86S is a discontinued double-acting ISO 15552 profile cylinder with an 86 mm stroke, delivering a push force of 3927 N at 0.5 MPa. It features a Ø25 mm piston rod, an M20x1.5 rod thread, and a G1/2 air port. The direct replacement is the SAI100X86S, which maintains the same ISO 15552 mounting interface, bore, stroke, output force, and port size for a seamless fixture swap.
The SAI upgrade introduces a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also expands functionality with SAIL, SAIF, and BSAI variants that the legacy SI line lacked. This -S SKU includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI replacement utilizes current AirTAC switches.
Airtac SI100 Standard Cylinder SI100X86S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X86S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X86S |
| Bore size | Ø100 mm |
| Stroke | 86 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 SAI100X86S 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 SAI100X86S 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 SI100X86S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×86 | 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 SI100X86S Is Used
Heavy-Duty Pressing
Applies the 3927 N push force at 0.5 MPa for seating bearings, stamping light-gauge metal, or clinching components in automated assembly lines.
Pallet Diversion
Uses the 86 mm stroke to actuate heavy lane guides or pop-up transfer stops, smoothly redirecting loaded pallets via the adjustable air cushions.
Replacing the Airtac SI100 Standard Cylinder SI100X86S with the SAI100X86S
To replace the discontinued SI100X86S, order the SAI100X86S with the identical ISO 15552 mounting interface, 100 mm bore, 86 mm stroke, G1/2 port, and matching mounting accessory (LB, FA, CA, TC, etc.). The -S suffix confirms your original cylinder has a piston magnet for CS1-B/DS1-B switches; the SAI replacement accepts current AirTAC switches. When sizing, note that a neighboring 80 mm bore yields 2513 N push at 0.5 MPa, whereas a 125 mm bore provides 6136 N. If your application requires load holding on air loss, a standard cylinder drifts because the air cushion only decelerates the piston near stroke end; you will need an external pilot check valve, a rod lock, or the SAIL/BSAI lock variant. The standard speed range is 30-800 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X86S
- ✓ 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 SI100X86S FAQ
Yes, the SI100X86S is discontinued. The direct replacement is the SAI100X86S. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 86 mm stroke, G1/2 port, and mounting interface, so it drops directly into existing fixtures.
This double-acting cylinder has a G1/2 air port. The thrust ratings are 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical maximum force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X86S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X86S replacement — usually within 7-8 hours.