Airtac SAID40 Double Rod Cylinder SAID40BX190
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX190 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 190mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke190 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40BX190
The AirTAC SAID40X190 is a double-acting, double-rod ISO 15552 profile cylinder with a 40 mm bore and 190 mm stroke. Because a rod extends from both end covers, the annulus area is identical on extend and retract, yielding exactly 528 N of force in both directions at 0.5 MPa. The G1/4 PT port and 16 mm rod ensure robust pneumatic delivery.
This variant features a SUS304 stainless steel rod (option B) for superior corrosion resistance in washdown or chemically active settings. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Note that the rear rod protrudes beyond the back cover, so you must account for additional clearance when designing your machine envelope.
Airtac SAID40 Double Rod Cylinder SAID40BX190 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX190 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 190 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40BX190
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×190 | 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 SAID40 Double Rod Cylinder SAID40BX190 Is Used
Symmetric Force Transfer
Drives a workpiece back and forth with exactly 528 N of thrust in both extend and retract directions, ensuring consistent cycle timing without force imbalance.
Anti-Rotation Slides
Uses the twin-rod geometry to guide a vertical sliding platform, preventing unwanted rotation and deflection without needing an external linear guide.
Dual-Side Actuation
Mounts the primary tool on the front rod end and a secondary cam or limit flag on the rear rod end to trigger external sequence valves or mechanical stops.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX190 the Right Cylinder?
Select this 40 mm bore when a 32 mm bore (offering 345 N both ways at 0.5 MPa) lacks sufficient thrust, but a 63 mm bore (1402 N both ways) would be physically oversized. The double-rod architecture is chosen over a single-rod SAI when your mechanism requires anti-rotation guidance, twin-station actuation, or a rear-mounted position flag. Because the 190 mm stroke is under the 300 mm threshold, side-load bending on the rod bearing is moderate, though an external guide is still recommended for heavy off-center loads.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 double-rod cylinders, making it a drop-in replacement. To match this exact unit, specify the 40 mm bore, 190 mm stroke, PT port thread, SUS304 (B) rod material, and select your mounting accessories from the SAID set: Basic, FA, LB, TC, FTC, TCM1, or TCM2 (FB, CA, CB, and CR are single-rod SAI only). This plain cylinder does not hold its load if air pressure is lost; use a SAIL lock or external pilot-operated check valve if position holding is required.
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 SAID40 Double Rod Cylinder SAID40BX190 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, it is a profile-type cylinder dimensionally interchangeable per ISO 15552. You can use standard brackets, but the SAID series supports a specific subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. FB, CA, CB, and CR mounts are not available for the double-rod design.
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