Airtac SAID40 Double Rod Cylinder SAID40BX30S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40BX30S
The AirTAC SAID40X30-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 30mm stroke. Because the piston rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 528N of force in both extend and retract directions at 0.5 MPa. This symmetric output is ideal for mechanisms requiring balanced push and pull dynamics.
Equipped with a -S magnet, this unit supports AirTAC CMSE reed and DMSE electronic sensors for dual-side position tracking. The rod is constructed from SUS304 stainless steel (code B) for superior corrosion resistance, and fluid connections use PT tapered ports. You can mount a workpiece on the front rod end and a cam or limit flag on the rear protrusion for synchronized secondary actuation.
Airtac SAID40 Double Rod Cylinder SAID40BX30S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SAID40BX30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SAID40BX30S Is Used
Symmetric Force Transfer
Drives loads requiring identical push and pull dynamics, utilizing the 528N equal bidirectional output to maintain consistent motion control without force bias.
Dual-Side Position Sensing
Uses the integrated magnet with CMSE and DMSE switches on both barrel grooves to track the rear rod extension for precise secondary mechanism timing.
Anti-Rotation Slides
Leverages the twin-rod architecture to guide loads against twisting forces, keeping the workpiece stable and aligned during short 30mm stroke movements.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX30S the Right Cylinder?
Choose this 40mm bore when an application demands equal bidirectional force and anti-rotation guidance that a single-rod SAI cannot provide. If you need less force, the 32mm bore offers 345N both ways at 0.5 MPa; stepping up to the 50mm bore provides 825N. The short 30mm stroke keeps the overall length compact, though you must account for the rear rod protrusion when calculating axial clearance.
This cylinder uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR accessories. It is dimensionally interchangeable per ISO 15552. Note that the adjustable air cushions only decelerate the piston near stroke ends; they do not hold the load. If position holding without live air pressure is required, use a BSAID clamp-lock cylinder or an external pilot-operated check valve.
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 SAID40BX30S FAQ
The double-rod design provides equal force in both directions. It delivers 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa for both extend and retract strokes.
Yes, it is dimensionally interchangeable with ISO 15552 profile cylinders. It shares standard mounting dimensions but uses a specific accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and features a SUS304 stainless steel rod with PT ports.
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