This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X650, 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 SI100X650
The AirTAC Airtac SI100 Standard Cylinder SI100X650 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 SAI100X650, 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 → SAI100X650
- 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 SI100X650
The AirTAC SI100X650 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 650 mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa through a G1/2 port. The direct replacement is the SAI100X650, matching the bore, stroke, force, port and ISO 15552 mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot take a CS1-B/DS1-B sensor. For load holding, the cushion only decelerates; use a SAIL lock or external check valve.
Airtac SI100 Standard Cylinder SI100X650 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X650 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X650 |
| 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 SAI100X650 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 SAI100X650 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 SI100X650
| 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 SI100X650 Is Used
Pallet Diversion
Routes heavy pallets on a packaging line using the 3927 N push force at 0.5 MPa to reliably push loads onto parallel conveyors.
Press Ejection
Ejects formed metal components from a press bed, benefiting from the adjustable 36 mm air cushions to decelerate the rod at stroke ends.
Replacing the Airtac SI100 Standard Cylinder SI100X650 with the SAI100X650
To replace the SI100X650, order the SAI100X650. Confirm the ISO 15552 mounting interface (LB, FA, TC, etc.), the G1/2 port, and the 650 mm stroke. Because this SKU has no -S magnet, it cannot accept position sensors; if sensing is needed, specify a magnet on the SAI order. For sizing, the 80 mm bore offers 2513 N push at 0.5 MPa, while the 125 mm bore provides 6136 N. At 650 mm stroke, add external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for held loads use the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X650
- ✓ 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 SI100X650 FAQ
Yes, the SI100X650 is discontinued. The direct replacement is the SAI100X650. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 650 mm stroke, output force, G1/2 port, and mounting accessories.
It has a G1/2 port. The 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. The speed range is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X650
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X650 replacement — usually within 7-8 hours.