This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X300, 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 SID200X300
The AirTAC Airtac SID Series Double-Rod Cylinder SID200X300 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 300mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X300, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID200X300
- 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 SID200X300
The AirTAC SID200X300 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. This discontinued model features a 200 mm bore, 300 mm stroke, 40 mm rods, M36x2 rod threads, and a G3/4 air port. The direct replacement is the SAID200X300, which reuses the same ISO 15552 mounting interface and adds an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
Because both faces use the rod-side area, force is identical in both directions, preventing the unequal thrust of single-rod units. This configuration provides inherent anti-rotation properties and allows the rear rod to drive a second tool. Note this SKU lacks a magnet (-S) and cannot take a magnetic switch. A plain cylinder does not hold loads on air loss; the 50 mm adjustable 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 SID200X300 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID200X300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X300 |
| Bore size | Ø200 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID200X300 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAID200X300 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 SID200X300
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | 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 SID200X300 Is Used
Synchronized Conveyor Transfer
Uses the dual rods to push and pull a workpiece across a belt with equal 15080 N force at 0.5 MPa, ensuring stable transit without rotation.
Dual-Tool Machining Station
Drives two separate operations from one piston, utilizing the front and rear rods simultaneously while maintaining identical thrust in both directions.
Replacing the Airtac SID Series Double-Rod Cylinder SID200X300 with the SAID200X300
To replace the discontinued SID200X300, install the direct replacement SAID200X300, which matches the 200 mm bore, 300 mm stroke, G3/4 port, and ISO 15552 mounting dimensions. When sizing both ways, verify the equal force of 15080 N @0.5 MPa meets your thrust, or step to a neighbor bore if more travel is needed. Choose a double-rod cylinder when you need inherent anti-rotation or must drive two tools simultaneously. Mounting options include Basic, FA, LB, and TC. Since this non-magnetic SKU cannot carry a sensor, add external limits if detection is required. For this 300 mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID200X300
- ✓ 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 SID200X300 FAQ
Yes, the SID200X300 is discontinued. The direct replacement is the SAID200X300, which shares the same ISO 15552 interface, 200 mm bore, 300 mm stroke, G3/4 port, and mounting. The SAID family also adds SAIL and BSAI lock variants the SI line lacked.
Because it is a double-rod cylinder, force is equal both ways: 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. The air port is G3/4, the rod is 40 mm with an M36x2 thread, speed is 30-500 mm/s, and it has 50 mm adjustable cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID200X300
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X300 replacement — usually within 7-8 hours.