This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID200X25S, 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 SID200X25S
The AirTAC Airtac SID Series Double-Rod Cylinder SID200X25S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 25mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID200X25S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke25 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID200X25S
- 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 SID200X25S
The AirTAC SID200X25S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, making push and pull force equal at 15080 N @0.5 MPa. This model is discontinued; the direct replacement is the SAID200X25S, matching the 200mm bore, 25mm stroke, G3/4 port, and mounting interface. The SAI family upgrades the piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
With a 40mm rod and M36x2 thread, the design lets the back rod carry a sensor cam for the -S magnet (legacy CS1-B/DS1-B switches). Note that air cushions only decelerate; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID200X25S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID200X25S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID200X25S |
| Bore size | Ø200 mm |
| Stroke | 25 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 SAID200X25S 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 SAID200X25S 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 SID200X25S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×25 | 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 SID200X25S Is Used
Twin-Tool Drive
Drives two separate operations simultaneously from one piston, using both rod ends to carry independent tooling with equal 15080 N force.
Cam-Driven Sensing
Uses the rear exiting rod to carry a sensor cam, triggering legacy CS1-B/DS1-B switches for position confirmation in tight spaces.
Replacing the Airtac SID Series Double-Rod Cylinder SID200X25S with the SAID200X25S
To replace the discontinued SID200X25S, use the SAID200X25S directly—it preserves the ISO 15552 interface, 15080 N equal-both-ways force, and G3/4 port. Size both ways by checking neighbouring bores if you need less force, but the double-rod layout is right when you need anti-rotation or must drive two tools. Reuse FA, LB, or TC mounts. The -S suffix means the magnet is present. Since the stroke is under 300mm, side-load alignment is less critical, but always verify guiding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID200X25S
- ✓ 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 SID200X25S FAQ
Yes, the SID200X25S is discontinued. The direct replacement is the SAID200X25S, which shares the same ISO 15552 mounting, 200mm bore, 25mm stroke, and G3/4 port.
Force is equal both ways: 15080 N @0.5 MPa, 21110 N @0.7 MPa, and 27141 N @0.9 MPa. Speed is 30-500 mm/s. The air cushion is 50mm at each end, but it only decelerates; use an external rod lock for load holding.
Related AirTAC SAI Cylinders
Request a Quote for the SAID200X25S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID200X25S replacement — usually within 7-8 hours.