This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X700, 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 SID200X700 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 700mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X700, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID200X700 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring force is equal both ways at 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. It features a 200mm bore, 40mm rod, M36x2 thread, 50mm adjustable cushions, G3/4 ports, and a 30-500 mm/s speed range. This legacy SID model is discontinued; the direct replacement is the SAID200X700, sharing the same interface, bore, stroke, and mounting.
Because the rod-side area drives both faces, this design prevents rod-side volume changes and offers anti-rotation benefits while allowing the back rod to drive a second tool. The SAID successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure. This SKU lacks a -S magnet, so it cannot accept magnetic switches; use legacy CS1-B/DS1-B sensors only on compatible models. A plain cylinder does not hold loads on air loss— cushions only decelerate— so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID200X700 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X700 |
| Bore size | Ø200 mm |
| Stroke | 700 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 SAID200X700 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 SAID200X700 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. |
| ×700 | 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 a transfer carriage on a conveyor using both rod ends simultaneously, ensuring equal push and pull force of 21110 N @0.7 MPa for stable material handling without rotation.
Clamps heavy workpieces from opposite sides using the dual rods, maintaining perfectly balanced 15080 N @0.5 MPa holding force and preventing workpiece drift during machining.
To replace the discontinued SID200X700, install the SAID200X700 directly; it preserves the ISO 15552 mounting interface, 700mm stroke, G3/4 port, and equal both-ways force. Size both directions by comparing neighbouring bores: the 160mm bore yields 9425 N @0.5 MPa, while the 200mm bore yields 15080 N @0.5 MPa. A double-rod configuration is right when you need equal push/pull force, anti-rotation stability, or a back rod to carry a sensor cam. Reuse FA, LB, or TC mounts. Because this SKU has no -S magnet, it cannot take magnetic switches. For the 700mm stroke, add external guides to prevent rod bending and manage side loads.
Replacement checklist
Yes, the AirTAC SID200X700 is discontinued. The direct replacement is the SAID200X700, which shares the same ISO 15552 interface, 200mm bore, 700mm stroke, G3/4 port, and equal both-ways force. The SAID family also adds upgraded piston seals and lock variants like SAIL and BSAI.
As 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. It operates at 0.15-1.0 MPa with a 50mm adjustable cushion at each end and a speed range of 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X700 replacement — usually within 7-8 hours.