Airtac SAID40 Double Rod Cylinder SAID40BX750
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX750 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 750mm 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
- Stroke750 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAID40 Double Rod Cylinder SAID40BX750
The AirTAC SAID40X750 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 750mm stroke. Because the piston rod exits 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. This symmetric output is ideal for mechanisms requiring consistent push and pull dynamics.
This specific configuration utilizes SUS304 stainless steel rods (material code B) for enhanced corrosion resistance in humid or washdown environments. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches on either end to track the through-rod position.
Airtac SAID40 Double Rod Cylinder SAID40BX750 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX750 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 750 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 SAID40BX750
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×750 | 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 SAID40BX750 Is Used
Symmetric Force Transfer
Drives a shuttle mechanism where the 528 N output must be identical in both directions without changing regulator pressure between strokes.
Anti-Rotation Slides
Twin rods guide the payload securely across the 750mm travel, preventing torsional twist that would normally occur with a single-rod actuator.
Rear-Cam Actuation
Uses the protruding rear rod end to trip a mechanical limit valve or cam while the front rod performs the primary work tool function.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX750 the Right Cylinder?
Select this 40mm bore when an application demands equal 528 N force both ways, stepping up from a 32mm bore (345 N) for higher thrust, or down from a 50mm bore (825 N) to save space. A double-rod design is chosen over a single-rod SAI when you need dual-side guidance to prevent rotation, or when a rear rod end is required to mount a cam or position flag. Note that a plain SAID does not hold position unpowered; use a SAIL or BSAID lock cylinder if pneumatic failure must not cause drift.
For a 750mm stroke, the extended length is significant since the rod protrudes from both ends, requiring ample rear clearance. The 16mm rod with an M12x1.25 thread carries moderate side loads, but at this length an external guide rail is strongly recommended to prevent rod-bearing bending. It is dimensionally interchangeable per ISO 15552, uses PT tapered G1/4 ports, and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAID40BX750 FAQ
Because it is a double-rod cylinder, 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 for both extend and retract strokes.
Yes, the SAID40X750 is dimensionally interchangeable per ISO 15552. It uses a standard G1/4 port and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting accessories, but note it requires extra rear clearance for the through-rod.
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