Airtac SAI40 Standard Air Cylinder SAI40BX70
The AirTAC SAI40 Standard Air Cylinder SAI40BX70 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 70mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke70 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 SAI40 Standard Air Cylinder SAI40BX70
The AirTAC SAI40X70 is a double-acting ISO 15552 profile cylinder with a 40mm bore and 70mm stroke. It delivers a push force of 628 N and a pull force of 528 N at 0.5 MPa, making it a robust choice for medium-duty automation. The extruded aluminum barrel design eliminates tie-rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in humid or washdown environments. It uses PT tapered port threads and lacks a magnet; if position sensing is later required, CMSE or DMSE sensors necessitate specifying the -S option at order.
Airtac SAI40 Standard Air Cylinder SAI40BX70 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX70 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 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 SAI40 Standard Air Cylinder SAI40BX70
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×70 | 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 SAI40 Standard Air Cylinder SAI40BX70 Is Used
Component Clamping
Provides 879 N of push force at 0.7 MPa for securely holding medium-sized metal parts during machining or drilling operations.
Package Diverting
The 70mm stroke actuates a diverting arm quickly to route small to medium packages on a sorting conveyor line.
Gate Control
Ideal for opening and closing small access hoppers or safety gates on automated machinery using its 528 N pull force.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX70 the Right Cylinder?
If your application requires less force, stepping down to a 32mm bore yields 402 N of push force at 0.5 MPa, while moving up to a 50mm bore provides 982 N for heavier loads. Because this 70mm stroke is relatively short, side-load stress on the rod bearing is minimal, though external guides are always recommended for heavy off-center loads.
This model uses a G1/4 port and M12x1.25 rod thread. As a standard double-acting cylinder, it does not hold position when air pressure is removed or exhausted—the piston will drift. For applications requiring true load holding without live pressure, select the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variant instead.
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 SAI40 Standard Air Cylinder SAI40BX70 FAQ
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes, its mounting interface is dimensionally interchangeable per ISO 15552, allowing it to direct replace profile cylinders of the same standard.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40BX70
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.