This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X65H, 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 SI100X65H
The AirTAC Airtac SI100 Standard Cylinder SI100X65H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 65mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X65H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X65H
- 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 SI100X65H
The AirTAC SI100X65H is a discontinued double-acting ISO 15552 profile cylinder featuring a 100mm bore, 65mm stroke, and a Viton H high-temperature seal (0 to 150 C). It delivers 3927 N push force at 0.5 MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100X65H, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Since this specific SKU lacks a magnet (-S), it cannot accept position switches. Note that standard cylinders drift without live air; use an external rod lock or the SAIL/BSAI lock variants for secure holding.
Airtac SI100 Standard Cylinder SI100X65H Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X65H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X65H |
| Bore size | Ø100 mm |
| Stroke | 65 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 SAI100X65H 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 SAI100X65H 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 SI100X65H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×65 | 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 SI100X65H Is Used
High-Temp Clamping
Secures heavy metal castings in automated machining centers where ambient heat requires a Viton H seal rated up to 150 C.
Press Ejection
Provides robust 3927 N push force at 0.5 MPa to eject dense formed parts from hydraulic press beds reliably.
Pallet Stopping
Acts as a heavy-duty end-stop for loaded pallets on conveyor lines, absorbing kinetic energy using adjustable cushions.
Replacing the Airtac SI100 Standard Cylinder SI100X65H with the SAI100X65H
To replace the discontinued SI100X65H, order the SAI100X65H. Confirm the ISO 15552 mounting interface, 100mm bore, 65mm stroke, G1/2 port, and your specific mounting accessory (LB, FA, TC, etc.). Because this SKU has no -S magnet, it cannot support sensing; if switches are needed, specify an SAI100X65HS. The SAI family also introduces the SAIF (integrated 4M valve) and SAIL/BSAI lock variants absent in the SI line. When sizing, this bore yields 3927 N push and 3681 N pull at 0.5 MPa, or 5497 N at 0.7 MPa. Neighboring bores: an 80mm gives 2513 N push, while a 125mm offers 6136 N. Remember, a plain cylinder does not hold load on air loss; the cushion only decelerates. For load holding, use a pilot check valve or the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X65H
- ✓ 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 SI100X65H FAQ
Yes, the SI100X65H is discontinued. The direct replacement is the SAI100X65H. It shares the identical ISO 15552 mounting interface, 100mm bore, 65mm stroke, force, and G1/2 port, fitting existing fixtures perfectly.
It features a G1/2 air port and 25mm rod. Force output is 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, with 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 SAI100X65H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X65H replacement — usually within 7-8 hours.