This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X150S, 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 SID200X150S
The AirTAC Airtac SID Series Double-Rod Cylinder SID200X150S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X150S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID200X150S
- 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 SID200X150S
The AirTAC SID200X150S 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 bore is 200 mm, the port is G3/4, the rod is Ø40 mm with an M36x2 thread, and it has a 50 mm adjustable air cushion at each end. The direct replacement is the SAID200X150S, which adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
This -S model includes a built-in piston magnet for legacy CS1-B/DS1-B switches (the SAI replacement uses current AirTAC switches). The double-rod design prevents rod rotation and lets the back rod carry a sensor cam or drive a second tool. Note that a plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID200X150S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID200X150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X150S |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAID200X150S 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 SAID200X150S 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 SID200X150S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×150 | 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 SID200X150S Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously with equal push and pull force, using the double-rod geometry to carry a second tool on the back end.
High-Load Transfer Pusher
Moves heavy pallets along a conveyor using 15080 N of force at 0.5 MPa, relying on the rigid double-rod structure to prevent rod rotation during impact.
External Cam Positioning
Uses the rear exiting rod to operate an external sensor cam for precise end-of-stroke confirmation in a high-speed sorting lane.
Replacing the Airtac SID Series Double-Rod Cylinder SID200X150S with the SAID200X150S
To replace the discontinued SID200X150S, use the SAID200X150S direct: it shares the exact ISO 15552 interface, 200 mm bore, 150 mm stroke, G3/4 port, and mounting. When sizing both ways, verify the equal force of 15080 N @0.5 MPa is sufficient, or step to a larger bore if needed. A double rod is right when you need anti-rotation, a back-rod sensor cam, or dual-tool driving. Mounting options include Basic, FA, LB, and TC. For stroke lengths over 300 mm, account for side-load to prevent binding. The -S suffix means the magnet is present for switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID200X150S
- ✓ 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 SID200X150S FAQ
Yes, the SID200X150S is discontinued. The direct replacement is the SAID200X150S. It shares the same ISO 15552 mounting interface, 200 mm bore, 150 mm stroke, G3/4 port, and equal both-ways force, but adds an upgraded piston seal.
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 operating speed is 30-500 mm/s, with a 50 mm adjustable air cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID200X150S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X150S replacement — usually within 7-8 hours.