Airtac SAID200 Double Rod Cylinder SAID200BX850S
The AirTAC Airtac SAID200 Double Rod Cylinder SAID200BX850S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 850mm 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
- Stroke850 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAID200 Double Rod Cylinder SAID200BX850S
The AirTAC SAID200X850-S is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty symmetrical motion. Because a SUS304 stainless steel rod exits both end covers, the effective piston area is identical on extend and retract, yielding an equal 15079 N of force each way at 0.5 MPa. This through-rod design is ideal for mounting a primary workpiece on one end and a cam, second tool, or position flag on the opposite end to drive secondary mechanisms.
As a made-to-order 850 mm stroke unit, it features a robust 40 mm rod and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches. Adjustable air cushions at both ends decelerate the piston near stroke ends, though they do not lock the load if air pressure is lost.
Airtac SAID200 Double Rod Cylinder SAID200BX850S Technical Specifications
| Model | Airtac SAID200 Double Rod Cylinder SAID200BX850S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 850 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 SAID200BX850S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×850 | 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 SAID200BX850S Is Used
Twin-Station Actuation
Drives two separate mechanisms simultaneously by mounting a primary workpiece on the front rod and a secondary tool on the rear rod.
Symmetric-Force Transfer
Handles heavy payload shifting where the exact same 15079 N thrust and speed are required in both extend and retract directions.
Anti-Rotation Slides
Keeps large guided loads from twisting during transit by utilizing the dual-rod geometry for superior rotational stability.
Is the Airtac SAID200 Double Rod Cylinder SAID200BX850S the Right Cylinder?
Select this 200 mm bore cylinder when an application requires massive bidirectional force and superior anti-rotation guidance that a single-rod SAI cannot provide. If you need slightly less force, stepping down to the 160 mm bore yields 9425 N each way at 0.5 MPa. Because this model has an 850 mm stroke, the long unsupported rod span mandates an external guide to prevent rod-bearing bending and excessive side loading under heavy weights.
This cylinder is dimensionally interchangeable per ISO 15552 and serves as a drop-in replacement for other ISO 15552 double-rod cylinders. It supports mounting accessories Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the adjustable cushions only decelerate the piston; for position holding without live air, use a SAIL lock, BSAID clamp-lock, or external rod lock.
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 SAID200BX850S FAQ
Because the double-rod design subtracts the rod area on both sides, the output force is equal in both directions. It provides 15079 N at 0.5 MPa, 21110 N at 0.7 MPa, and 27141 N at 0.9 MPa.
Yes, the SAID200X850-S is dimensionally interchangeable per ISO 15552. It uses the standard profile mounting interface and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories.
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