Airtac SAID200 Double Rod Cylinder SAID200BX75
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX75
The AirTAC SAID200X75 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 200 mm bore and 75 mm stroke. Because the twin rods occupy both sides of the piston, the annulus area is identical in each direction, yielding exactly 15079 N of force both extending and retracting at 0.5 MPa. This through-rod geometry provides superior anti-rotation guidance for heavy loads compared to a single-rod SAI.
This specific configuration incorporates a SUS304 stainless steel rod (option B) for enhanced corrosion resistance and ships without a magnet (-S omitted). It uses PT tapered port threads (G3/4) and adjustable air cushions at both ends to decelerate the massive moving mass safely near stroke limits.
Airtac SAID200 Double Rod Cylinder SAID200BX75 Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
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 SAID200BX75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SAID200BX75 Is Used
Heavy Machinery Forging
Drives heavy press dies with equal 15079 N force in both directions, preventing drift in high-tonnage forging operations.
Symmetric Transfer System
Moves large structural components between stations, using the through-rod design to keep the payload perfectly aligned and twist-free.
Rear-Cam Actuation
Uses the protruding rear rod end to trigger mechanical limit valves or sequence secondary mechanisms independently of the main work tool.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX75 the Right Cylinder?
Select this 200 mm bore when an application requires immense symmetric force—stepping down to a 160 mm bore yields 9425 N at 0.5 MPa, whereas this SAID200X75 provides 15079 N each way. The double-rod design is chosen over a single-rod cylinder when you need to mount a cam or position flag on the rear rod end, or when dual-side guidance is required to prevent the load from twisting.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders. Note that SAID uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR accessories. Because this is a plain double-rod cylinder, it does not hold its load if air pressure drops; use a SAIL or BSAID lock variant if fail-safe holding is required. At a 75 mm stroke, side-load stress on the rod bearing is minimal, so no external guide is strictly necessary.
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 SAID200BX75 FAQ
Because the double-rod design creates equal annulus areas on both sides, it provides 15079 N of force in both extend and retract directions at 0.5 MPa, and 21110 N at 0.7 MPa.
Yes, the SAID200X75 is dimensionally interchangeable per ISO 15552 standards. It uses a standard profile barrel and PT G3/4 ports, making it a drop-in replacement for other ISO 15552 double-rod cylinders.
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