This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X50, 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 SID Series Double-Rod Cylinder SID100X50
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 50mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X50
- 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 SID Series Double-Rod Cylinder SID100X50
The AirTAC SID100X50 is a discontinued ISO 15552 double-acting double-rod cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, so push and pull force are equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The direct replacement is the SAID100X50, matching the 100mm bore, 50mm stroke, G1/2 port, and mounting interface. The SAI family uses an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life.
Because the second rod drives an external cam or two tools simultaneously while resisting rotation, this configuration is highly stable. This SKU has no -S magnet and cannot take a magnetic switch. A plain cylinder does not hold its load on air loss; the 36mm adjustable air cushions only decelerate near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID100X50 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X50 |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAID100X50 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 SAID100X50 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID100X50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SID Series Double-Rod Cylinder SID100X50 Is Used
Dual-Tool Drive
Drives two opposing tools simultaneously from one piston, utilizing the equal 5153 N @0.7 MPa force in both directions for balanced machining operations.
Anti-Rotation Transfer
Transfers workpieces on a conveyor with high torsional stability, using the twin rods exiting both ends to prevent mechanical rotation during transit.
Balanced Vertical Lift
Lifts balanced loads vertically where the equal push and pull forces ensure smooth operation without the asymmetric force drop of single-rod cylinders.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X50 with the SAID100X50
To replace the discontinued SID100X50, install the direct replacement SAID100X50, reusing the exact ISO 15552 mounting interface (Basic, FA, LB, TC, FTC, TCM1, TCM2) and G1/2 port. Size both ways by checking neighbour bores: the 80mm bore yields 2268 N @0.5 MPa, while the 125mm bore yields 5734 N @0.5 MPa, but the 100mm bore provides an equal 3681 N in both directions. A double rod is right when you need anti-rotation stability or must drive two tools from one piston. Since this SKU lacks the -S magnet, it cannot support sensing; add external switches if needed. For this 50mm stroke, side-load concerns are minimal, but for any stroke >=300, ensure guide alignment to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X50
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID100X50 FAQ
Yes, the AirTAC SID100X50 is discontinued. The direct replacement is the SAID100X50, which matches the ISO 15552 interface, 100mm bore, 50mm stroke, G1/2 port, and mounting hardware.
Force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The bore dictates a fixed G1/2 air port, a 25mm rod, M20x1.5 rod-end thread, and 36mm adjustable air cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X50
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X50 replacement — usually within 7-8 hours.