Airtac SAID100 Double Rod Cylinder SAID100BX550
The AirTAC Airtac SAID100 Double Rod Cylinder SAID100BX550 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 550mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke550 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 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 SAID100 Double Rod Cylinder SAID100BX550
The AirTAC SAID100X550 is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. Because a stainless steel SUS304 rod exits both end covers, the annulus area is identical on extend and retract, yielding exactly 3681 N of force each way at 0.5 MPa. This symmetric output is ideal for mechanisms requiring balanced push and pull dynamics.
Beyond equal force, the twin-rod architecture provides superior anti-rotation stability and allows a position flag or cam to be mounted on the rear rod. The extruded aluminum barrel features sensor grooves on both sides, and with a 550 mm stroke, the unit requires extra rear clearance to accommodate the through-rod protrusion.
Airtac SAID100 Double Rod Cylinder SAID100BX550 Technical Specifications
| Model | Airtac SAID100 Double Rod Cylinder SAID100BX550 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID100 Double Rod Cylinder SAID100BX550
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×550 | 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 SAID100 Double Rod Cylinder SAID100BX550 Is Used
Symmetric Force Transfer
Drives a shuttle mechanism where the 3681 N output must be identical in both directions, preventing drive imbalance during rapid reversals.
Rear-Rod Position Flag
Uses the protruding rear rod to mechanically trip an external limit switch, providing a hard mechanical confirmation of the retracted position.
Anti-Rotation Slides
Lifts and lowers a heavy machining head while relying on the twin-rod geometry to resist torsional twist without external guide rails.
Is the Airtac SAID100 Double Rod Cylinder SAID100BX550 the Right Cylinder?
Select this 100 mm bore when an application demands 3681 N of thrust and retraction force simultaneously, or step down to the 80 mm bore if 2268 N suffices. The double-rod design is chosen over a single-rod SAI when you need dual-side guidance, a rear-mounted sensor target, or identical speeds in both directions. Note that the standard adjustable air cushions only decelerate the piston near stroke end; they do not hold the load. If position holding is required without live air pressure, use a SAIL lock cylinder or an external pilot-operated check valve.
At 550 mm of stroke, the 25 mm diameter rod and M20x1.5 thread must handle significant bending moments if the load is unsupported. Always guide the load externally to prevent rod-bearing wear. This cylinder uses PT tapered ports (G1/2) and supports mountings Basic, FA, LB, TC, FTC, TCM1, and TCM2. It is dimensionally interchangeable with other ISO 15552 double-rod cylinders, but omits FB, CA, CB, and CR mounts.
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 SAID100 Double Rod Cylinder SAID100BX550 FAQ
Because it is a double-rod cylinder, the force is identical in both extend and retract directions. It provides 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa.
Yes, the SAID100X550 is dimensionally interchangeable per ISO 15552 standards. However, ensure your mounting uses the supported SAID set (Basic, FA, LB, TC, FTC, TCM1, TCM2) as FB, CA, CB, and CR are single-rod only.
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