This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X900, 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 SID200X900
The AirTAC Airtac SID Series Double-Rod Cylinder SID200X900 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 900mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X900, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID200X900
- 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 SID200X900
The AirTAC SID200X900 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring push and pull force are equal at 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. This SKU is discontinued and has no -S magnet, so it cannot take a sensor. The direct replacement is the SAID200X900, retaining the 200mm bore, 900mm stroke, G3/4 port, and M36x2 rod thread.
Because both faces use the rod-side area, the back rod can drive a second tool or carry a sensor cam without losing equal force. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. A plain cylinder drifts on air loss; the 50mm cushion only decelerates, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID200X900 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID200X900 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X900 |
| Bore size | Ø200 mm |
| Stroke | 900 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 SAID200X900 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 SAID200X900 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 SID200X900
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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 SID200X900 Is Used
Twin-Tool Press Station
Drives two forming tools simultaneously from opposite rod ends, utilizing the equal 21110 N @0.7 MPa force for balanced, high-tonnage pressing without requiring a larger bore.
Anti-Rotation Transfer Gate
Uses the double-rod architecture to prevent mechanical twist during long 900mm traverses, ensuring stable part routing across a wide conveyor belt.
Replacing the Airtac SID Series Double-Rod Cylinder SID200X900 with the SAID200X900
To replace the discontinued SID200X900, specify SAID200X900 for an identical ISO 15552 mounting interface, 900mm stroke, and equal-both-ways force. Size both ways by checking neighbor bores: the 160mm bore yields 9425 N @0.5 MPa, while the 200mm bore provides 15080 N @0.5 MPa. A double rod is right when you need anti-rotation, equal force, or a back rod to drive a second stage. Reuse FA, LB, or TC mounts. This SKU lacks the -S magnet and cannot take a switch. For the 900mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID200X900
- ✓ 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 SID200X900 FAQ
Yes, the SID200X900 is discontinued. The direct replacement is the SAID200X900, which matches the 200mm bore, 900mm stroke, G3/4 port, and ISO 15552 mounting interface. The SAI family also adds SAIL and BSAI lock variants the SI line lacked.
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 thread is M36x2, and it features a 50mm adjustable cushion at each end. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAID200X900
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X900 replacement — usually within 7-8 hours.