This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X950H, 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 SI100X950H
The AirTAC Airtac SI100 Standard Cylinder SI100X950H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 950mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X950H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke950 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X950H
- 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 SI100X950H
The AirTAC SI100X950H is a discontinued double-acting ISO 15552 profile cylinder with a 950 mm stroke and Viton H high-temperature seals. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X950H, a direct upgrade retaining the exact bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also adds lock and valve variants (SAIL, BSAI, SAIF) absent in the SI line. Note this no-S SKU lacks a magnet and cannot accept sensors.
Airtac SI100 Standard Cylinder SI100X950H Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X950H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X950H |
| Bore size | Ø100 mm |
| Stroke | 950 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 SAI100X950H 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 SAI100X950H 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 SI100X950H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×950 | 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 SI100X950H Is Used
High-Temperature Ejection
Ejects molded parts from hot zones using the Viton -H seal rated for 150 C, leveraging 3927 N push force at 0.5 MPa.
Long-Stroke Diversion
Actuates large diverters across wide conveyor belts over 950 mm, requiring external guides to prevent rod bending.
Replacing the Airtac SI100 Standard Cylinder SI100X950H with the SAI100X950H
To replace the SI100X950H, order the SAI100X950H, confirming the ISO 15552 mounting interface, 100 mm bore, 950 mm stroke, G1/2 port, and Viton -H seal. If sizing up or down, adjacent bores (80 mm or 125 mm) offer 2513 N or 6136 N push at 0.5 MPa. Because this is a 950 mm stroke, external guides are recommended to prevent rod bending and excessive side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify the SAIL/BSAI lock variant. Finally, this no-magnet SKU cannot support position sensing.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X950H
- ✓ 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 SI100X950H FAQ
Yes, the SI100X950H is discontinued. The direct replacement is the SAI100X950H. It shares the same ISO 15552 mounting interface, 100 mm bore, 950 mm stroke, output force, G1/2 port, and Viton -H seal, fitting existing fixtures perfectly.
It uses a G1/2 port. Force 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 max of 801 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X950H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X950H replacement — usually within 7-8 hours.