This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X100, 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.

The AirTAC Airtac SID Series Double-Rod Cylinder SID200X100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 100mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID200X100 is a discontinued double-acting, double-rod ISO 15552 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 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. The direct replacement is the SAID200X100, matching the 200mm bore, 100mm stroke, G3/4 port, and mounting interface. The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life.
This SKU lacks a -S magnet and cannot take a magnetic switch. A plain cylinder drifts on air loss; the 50mm adjustable cushion only decelerates near stroke end. For held loads use an external rod lock, pilot-operated check valve, or the SAIL/BSAI lock variant.
| Model | Airtac SID Series Double-Rod Cylinder SID200X100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X100 |
| Bore size | Ø200 mm |
| Stroke | 100 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 SAID200X100 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAID200X100 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×100 | 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).
Drives two forming tools simultaneously from opposite rod ends, utilising the equal 21110 N @0.7 MPa push and pull force for balanced, high-tonnage stamping operations.
Shifts large pallets laterally across conveyor lanes using the back rod end to carry a sensor cam, maintaining precise 90-degree indexing without rotational drift.
Actuates a heavy 769 kg counterweighted safety gate, relying on the equal both-ways force to ensure smooth, balanced ascent and descent under dynamic loads.
Replace the discontinued SID200X100 directly with the SAID200X100, reusing your existing ISO 15552 mounting hardware (Basic, FA, LB, TC). Size both ways by checking neighbour bores: the 160mm bore yields 9425 N @0.5 MPa, while the 200mm bore provides 15080 N. Choose a double-rod cylinder when you need equal force in both directions, anti-rotation stability, or a back rod to drive a second tool. This non-magnetic SKU cannot support sensors. For this 100mm stroke, side-load is minimal, but for strokes >=300mm ensure guide alignment to prevent rod binding. Operating speed is 30-500 mm/s.
Replacement checklist
Yes, the SID200X100 is discontinued. The direct replacement is the SAID200X100. It shares the identical ISO 15552 interface, 200mm bore, 100mm stroke, G3/4 port, and equal both-ways force. The SAI family also adds SAIF and BSAI 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. Maximum operating pressure is 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X100 replacement — usually within 7-8 hours.