This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X650N, 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 SI100X650N
The AirTAC Airtac SI100 Standard Cylinder SI100X650N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 650mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X650N, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X650N
- 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 SI100X650N
The AirTAC SI100X650N is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 650 mm stroke. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. The direct replacement is the SAI100X650N, which shares identical mounting, bore, stroke, force, and porting. This NBR-sealed unit operates from -20 to +70 C.
Upgrading to the SAI100X650N brings a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU lacks a magnet (-S) and cannot accept position sensors. If you need load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI100 Standard Cylinder SI100X650N Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X650N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X650N |
| Bore size | Ø100 mm |
| Stroke | 650 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 SAI100X650N 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 SAI100X650N 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 SI100X650N
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×650 | 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 SI100X650N Is Used
Heavy Material Ejection
Provides the 3927 N push at 0.5 MPa needed to eject heavy finished parts or pallets from an automated conveyor line over the 650 mm travel distance.
Large Press Feed
Feeds heavy sheet metal blanks into a large stamping press, requiring external guide rails to manage side loads across the 650 mm extension.
Replacing the Airtac SI100 Standard Cylinder SI100X650N with the SAI100X650N
To replace the SI100X650N, order the SAI100X650N and confirm the ISO 15552 mounting interface, 650 mm stroke, G1/2 port (PT/G/NPT), and accessory type. Because this SKU lacks the -S magnet, it cannot support CS1-B/DS1-B legacy switches; order a magnet-equipped SAI if sensing is required. The 100 mm bore yields 3927 N push at 0.5 MPa (801 kgf max at 1.0 MPa); if undersizing, a 80 mm bore gives 2513 N. For the 650 mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts without air; for load holding, use the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X650N
- ✓ 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 SI100X650N FAQ
Yes, the SI100X650N is discontinued. The direct replacement is the AirTAC SAI100X650N. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 650 mm stroke, G1/2 port, and mounting interface. The SAI simply upgrades the piston seal to two Y-shaped elements for lower start-up pressure.
The 100 mm bore features a G1/2 port, a 25 mm rod, and M20x1.5 thread. Force output is 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. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X650N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X650N replacement — usually within 7-8 hours.