Airtac SAID40 Double Rod Cylinder SAID40BX100
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 100mm 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
- Stroke100 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40BX100
The AirTAC SAID40X100 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 100mm stroke. Because a SUS304 stainless steel rod exits both end covers, the effective piston area is identical on extend and retract. This yields exactly 528N of force in both directions at 0.5MPa, ensuring perfectly symmetric speed and thrust for your pneumatically driven motion tasks.
Beyond balanced kinetics, this through-rod design allows mounting a primary workpiece on the front rod while utilizing the rear extension for a cam, limit flag, or secondary mechanism. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered port threads ensure a tight, reliable pneumatic hookup for demanding industrial environments.
Airtac SAID40 Double Rod Cylinder SAID40BX100 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 SAID40BX100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SAID40BX100 Is Used
Symmetric Force Transfer
Drives shuttles or indexing units where the 528N push and pull forces must match exactly, preventing asymmetric acceleration during cycle reversals.
Dual-Side Tooling Actuation
Mounts a forming tool on the front rod and a synchronized ejector cam on the rear rod to operate two linked workstations from one pneumatic source.
Anti-Rotation Guiding
Keeps a gripper slide guided against rotation without external linear bearings, leveraging the twin SUS304 rods for precise, twist-free vertical movement.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX100 the Right Cylinder?
Select this 40mm bore when an application strictly requires equal push and pull forces, as the twin rods subtract the same area from both sides of the piston. If your mechanism needs less force, step down to the 32mm bore (345N both ways at 0.5MPa); if you require more thrust, step up to the 50mm bore (825N both ways). Choose the SAID40X100 over a single-rod SAI when you need built-in anti-rotation guidance, dual-side tooling, or rear-position sensing. Note that this plain double-rod cylinder does not hold its load if air pressure is lost; for dead-end holding, consider an external pilot-operated check valve or the SAIL lock series. As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other standard profile cylinders, utilizing the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting set (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 SAID40 Double Rod Cylinder SAID40BX100 FAQ
Because the double-rod design occupies area on both sides of the piston, the extend and retract forces are equal. It provides 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa in both directions.
Yes, the SAID40X100 is dimensionally interchangeable per ISO 15552 standards. It serves as a drop-in replacement for other standard profile double-rod cylinders, utilizing the same mounting interface dimensions.
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