Airtac SAID200 Double Rod Cylinder SAID200X400S
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200X400S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- 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 SAID200 Double Rod Cylinder SAID200X400S
The AirTAC SAID200X400-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and 400 mm stroke. Because a carbon steel rod exits both end covers, the annulus area is identical on each side, yielding perfectly symmetric thrust of 15079 N in both extend and retract directions at 0.5 MPa. The integrated magnet (-S) enables position tracking using CMSE reed or DMSE electronic switches mounted along the dual sensor grooves.
This through-rod architecture allows operators to mount the primary workpiece on the front end and a secondary cam, position flag, or synchronization linkage on the rear. Operating at 30-500 mm/s, it utilizes adjustable air cushions at both ends to decelerate the massive 1922 kgf load class smoothly. The PT threaded G3/4 ports ensure high flow capacity for rapid cycling.
Airtac SAID200 Double Rod Cylinder SAID200X400S Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200X400S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID200 Double Rod Cylinder SAID200X400S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID200 Double Rod Cylinder SAID200X400S Is Used
Twin-Station Transfer
Drives two parallel conveyors or fixtures simultaneously using both rod ends, ensuring perfectly synchronized movement without requiring a separate mechanical linkage.
Anti-Rotation Slides
The dual through-rods provide inherent torsional resistance, keeping heavy guided loads from twisting during vertical or horizontal translation.
Symmetric-Force Pressing
Ideal for pressing and stamping tasks where the 15079 N force must remain identical in both the forward working stroke and the rapid return stroke.
Is the Airtac SAID200 Double Rod Cylinder SAID200X400S the Right Cylinder?
Selecting this 200 mm bore over a smaller 160 mm neighbor trades the 9425 N (0.5 MPa) symmetric force for a substantial 15079 N, necessary when driving heavy twin-station transfers or high-mass anti-rotation slides. The double-rod design is specifically chosen over a single-rod SAI when the mechanism requires equal push/pull velocity, dual-side guidance, or rear-rod actuation. Note that the adjustable cushions only decelerate the piston near stroke end; they do not hold the load. If the application must maintain position upon air loss, specify a BSAID clamp-lock or an external pilot-operated check valve.
For a 400 mm stroke, the long unsupported carbon steel rod (40 mm diameter, M36x2 thread) is highly susceptible to side-load bending and rod-bearing wear. Always pair this cylinder with an external linear guide to support the load. As a dimensionally interchangeable ISO 15552 profile cylinder, it drops in for other standard double-rod units using the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting accessories (omitting FB, CA, CB, and CR).
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID200 Double Rod Cylinder SAID200X400S FAQ
Because the double-rod design has the same effective piston area on both sides, it outputs 15079 N in both extend and retract directions at 0.5 MPa, and 21110 N at 0.7 MPa.
Yes, the SAID200X400-S is dimensionally interchangeable per ISO 15552. You can drop it in using standard mounting accessories like TC or LB brackets, provided you use the correct PT G3/4 port fittings.
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