This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X500S, 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 SID100X500S
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X500S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X500S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X500S
- 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 SID100X500S
The AirTAC SID100X500S is a discontinued ISO 15552 double-acting double-rod cylinder. A rod exits both ends on one piston, meaning both faces use the rod-side area and push/pull force is equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The direct replacement is the SAID100X500S, matching the 100mm bore, 500mm stroke, G1/2 port, and mounting interface. The SAI replacement uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads 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 SID100X500S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X500S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X500S |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAID100X500S 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 SAID100X500S 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 SID100X500S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SID100X500S Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously from a single cylinder body, utilising the equal both-ways force to ensure perfectly balanced cutting pressure on both sides.
Symmetrical Transfer Unit
Transfers workpieces across a conveyor using both rod ends, where the double-rod geometry prevents rotational drift and maintains precise alignment during rapid 30-800 mm/s cycles.
External Cam Positioning
Uses the rear exiting rod to carry a sensor cam for legacy CS1-B/DS1-B switches, allowing external position verification while the front rod actuates the primary mechanism.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X500S with the SAID100X500S
To replace the discontinued SID100X500S, install the SAID100X500S directly—it preserves the ISO 15552 mounting interface, 500mm stroke, and equal-both-ways force. When sizing, verify force in both directions (3681 N @0.5 MPa) and consider neighbouring bores (80mm or 125mm) if your payload changes. A double-rod design is right when you need anti-rotation stability, want to drive two tools from one cylinder, or need a back rod to carry a sensor cam. Reuse FA, LB, or TC mounts. The -S magnet enables position sensing. For this 500mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X500S
- ✓ 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 SID100X500S FAQ
Yes, the SID100X500S is discontinued. The direct replacement is the SAID100X500S. It shares the same ISO 15552 interface, 100mm bore, 500mm stroke, G1/2 port, and mounting options, while adding an upgraded piston seal.
Because it is a double-rod cylinder, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The air port is G1/2. It operates at 0.15-1.0 MPa with a speed of 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X500S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X500S replacement — usually within 7-8 hours.