This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X300S, 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 SID100X300S
The AirTAC Airtac SID Series Double-Rod Cylinder SID100X300S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 300mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X300S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID100X300S
- 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 SID100X300S
The AirTAC SID100X300S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force remain equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The bore is 100 mm, the port is G1/2, and the rod thread is M20x1.5. This SID model is discontinued; the direct replacement is the SAID100X300S, which reuses the same ISO 15552 mounting interface, bore, stroke, and port. The SAI family improves longevity with an upgraded two-piece Y-shaped piston seal.
Because the rear rod can carry a sensor cam or drive a second tool simultaneously, the design prevents rod rotation without external guides. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. Note that air cushions only decelerate near stroke end; a plain cylinder cannot hold a load on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID100X300S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID100X300S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X300S |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAID100X300S 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 SAID100X300S 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 SID100X300S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SID100X300S Is Used
Twin-Tool Machining Station
Drives two opposing machining heads simultaneously from a single piston, utilising the equal both-ways force to maintain balanced cutting pressure.
Anti-Rotation Transfer Unit
Uses the dual-rod architecture to prevent mechanical rotation during high-speed part transfer across a conveyor belt without needing external guides.
Symmetric Clamping Fixture
Clamps heavy workpieces from both sides evenly, relying on the 5153 N @0.7 MPa equal force to secure components precisely during assembly.
Replacing the Airtac SID Series Double-Rod Cylinder SID100X300S with the SAID100X300S
To replace the discontinued SID100X300S, install the SAID100X300S directly—it matches the 100 mm bore, 300 mm stroke, G1/2 port, and ISO 15552 mounting dimensions (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both ways by verifying the equal push/pull force of 3681 N @0.5 MPa; if lower force is acceptable, neighbouring bores like 80 mm offer 2268 N. Choose a double-rod cylinder when you need anti-rotation stability or must drive two tools from one piston. The -S magnet supports legacy CS1-B/DS1-B sensors. For this 300 mm stroke, use external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID100X300S
- ✓ 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 SID100X300S FAQ
Yes, the SID100X300S is discontinued. The direct replacement is the SAID100X300S, which shares the same 100 mm bore, 300 mm stroke, G1/2 port, and ISO 15552 mounting interface. The SAI replacement also features an upgraded piston seal for lower start-up pressure.
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.
Related AirTAC SAI Cylinders
Request a Quote for the SAID100X300S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X300S replacement — usually within 7-8 hours.