This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1050S, 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 SI100X1050S
The AirTAC Airtac SI100 Standard Cylinder SI100X1050S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1050mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1050S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1050 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1050S
- 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 SI100X1050S
The AirTAC SI100X1050S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1050mm stroke. Delivering 3927N push force at 0.5MPa, it is replaced by the SAI100X1050S direct. The SAI keeps the same G1/2 port, M20x1.5 thread, and ISO 15552 mounting interface, dropping straight into existing fixtures.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The -S magnet works with legacy CS1-B/DS1-B sensors. For high heat, Viton H seals extend range to 150C.
Airtac SI100 Standard Cylinder SI100X1050S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1050S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1050S |
| Bore size | Ø100 mm |
| Stroke | 1050 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 SAI100X1050S 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 SAI100X1050S 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 SI100X1050S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1050 | 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 SI100X1050S Is Used
Long-Stroke Material Transfer
Pushes heavy pallets along assembly lines using the 3927N force over the full 1050mm travel distance.
Large Press Ejection
Ejects formed parts from machinery, relying on the 36mm adjustable cushions to decelerate at stroke end.
Replacing the Airtac SI100 Standard Cylinder SI100X1050S with the SAI100X1050S
To replace the SI100X1050S, order the SAI100X1050S matching the 100mm bore, 1050mm stroke, G1/2 port, and ISO 15552 mounting. Confirm thread PT/G/NPT and accessories. The 1050mm stroke risks rod bending; use external guides to prevent side loads. Neighbouring bores: 80mm gives 2513N, 125mm gives 6133N at 0.5MPa. This cylinder drifts without air; for load holding use an external rod lock, pilot check valve, or SAIL/BSAI lock variant. SAIF adds a built-in valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1050S
- ✓ 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 SI100X1050S FAQ
Yes, the SI100X1050S is discontinued. The direct replacement is the SAI100X1050S, sharing the same ISO 15552 mounting interface, 100mm bore, 1050mm stroke, force, and G1/2 port.
It features a G1/2 port. Force outputs are: 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1050S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1050S replacement — usually within 7-8 hours.