This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X500H, 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 SI100X500H
The AirTAC Airtac SI100 Standard Cylinder SI100X500H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X500H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X500H
- 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 SI100X500H
The AirTAC SI100X500H is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 500mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X500H, which shares identical ISO 15552 mounting dimensions, stroke, and output force. The H designation indicates a Viton H seal, extending operating temperature to 0-150 C.
Because this SKU lacks a magnet, it cannot accept position sensors. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure.
Airtac SI100 Standard Cylinder SI100X500H Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X500H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X500H |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAI100X500H 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 SAI100X500H 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 SI100X500H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SI100X500H Is Used
High-Temp Ejection
Ejecting molded parts from hot environments using the Viton H seal rated for 0-150 C, providing 3927N of push force.
Pallet Diverting
Actuating heavy pallet routing gates over 500mm strokes, guided externally to prevent rod bending under lateral stress.
Replacing the Airtac SI100 Standard Cylinder SI100X500H with the SAI100X500H
To replace the SI100X500H, order the SAI100X500H to retain the exact 100mm bore, 500mm stroke, G1/2 port, and ISO 15552 mounting interface. Confirm your Viton H high-temperature seal requirement. Since this is a no-magnet SKU, it cannot support CS1-B/DS1-B switches; order an SAI with the S suffix if sensing is needed. At 500mm stroke, prevent rod bending by using external guides to absorb side loads. For sizing, a neighbouring 80mm bore yields 2513N push, while a 125mm bore yields 6136N. Note that a plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X500H
- ✓ 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 SI100X500H FAQ
Yes, the SI100X500H is discontinued. The direct replacement is the SAI100X500H. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 500mm stroke, G1/2 port, and mounting hardware.
It features a G1/2 port and delivers 3927N push / 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801 kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X500H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X500H replacement — usually within 7-8 hours.