This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX1150H, 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 SI100BX1150H
The AirTAC Airtac SI100 Standard Cylinder SI100BX1150H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1150mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX1150H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX1150H
- 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 SI100BX1150H
The AirTAC SI100BX1150H is a discontinued double-acting ISO 15552 profile cylinder featuring a 100 mm bore, 1150 mm stroke, and a high-temperature Viton H seal. It delivers 3927 N of push force at 0.5 MPa. The direct replacement is the SAI100BX1150H, which shares the exact ISO 15552 mounting interface, G1/2 port, and output force. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because this SKU lacks a magnet (-S), it cannot accept a magnetic switch. It uses a SUS304 stainless piston rod (-B) for corrosion resistance. Note that the SAI family also introduces SAIL, SAIF, and BSAI lock variants absent from the legacy SI line.
Airtac SI100 Standard Cylinder SI100BX1150H Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX1150H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX1150H |
| Bore size | Ø100 mm |
| Stroke | 1150 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 SAI100BX1150H 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 SAI100BX1150H 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 SI100BX1150H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1150 | 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 SI100BX1150H Is Used
High-Temp Ejection
Ejecting moulded parts from hot environments using the SUS304 rod and Viton H seals rated for 0 to 150 C.
Long-Stroke Transfer
Moving heavy pallets 1150 mm along an assembly line, guided externally to prevent rod bending.
Replacing the Airtac SI100 Standard Cylinder SI100BX1150H with the SAI100BX1150H
To replace the discontinued SI100BX1150H, order the SAI100BX1150H. It is dimensionally interchangeable per the ISO 15552 mounting interface, matching the 100 mm bore, 1150 mm stroke, G1/2 port, and M20x1.5 rod thread. Confirm your mounting accessory (LB, FA, TC, etc.) and high-temp Viton H seal requirement. For sizing, neighbouring bores offer different forces: an 80 mm bore yields 2513 N push at 0.5 MPa, while a 125 mm bore yields 6136 N. A plain cylinder does not hold load on air loss; for load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant. Because the 1150 mm stroke exceeds 300 mm, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX1150H
- ✓ 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 SI100BX1150H FAQ
Yes, the SI100BX1150H is discontinued. The direct replacement is the SAI100BX1150H. It shares the same ISO 15552 mounting interface, 100 mm bore, 1150 mm stroke, force, G1/2 port, and mounting accessories, fitting existing fixtures perfectly.
It has 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. It operates at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX1150H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX1150H replacement — usually within 7-8 hours.