Airtac SAI40 Standard Air Cylinder SAI40X70S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X70S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- 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 SAI40X70S
The AirTAC SAI40X70-S is a double-acting ISO 15552 profile cylinder engineered for standardized mounting. It provides a push force of 628 N and a pull force of 528 N at 0.5 MPa, making it well-suited for compact mid-range actuation tasks requiring a 70 mm stroke. The extruded aluminum barrel design omits tie-rods, ensuring a clean exterior.
Equipped with a magnet for position sensing, this unit supports CMSE and DMSE switches via sensor grooves on both sides of the barrel. The standard carbon steel piston rod offers robust durability for industrial environments, while adjustable air cushions at both ends ensure smooth end-of-stroke deceleration.
Airtac SAI40 Standard Air Cylinder SAI40X70S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X70S |
|---|---|
| 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 SAI40X70S
| 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 SAI40X70S Is Used
Component Clamping
Provides reliable 628 N clamping force at 0.5 MPa for securing medium-sized metal parts during machining operations.
Package Diverting
Ideal for short 70 mm stroke diverting arms on packaging lines, using dual sensor grooves for precise timing.
Pallet Stopper
Acts as a pneumatic stop mechanism for lightweight pallets in material handling workflows, utilizing adjustable cushions.
Is the Airtac SAI40 Standard Air Cylinder SAI40X70S the Right Cylinder?
This 40 mm bore provides 628 N of thrust at 0.5 MPa. If your application requires less force, stepping down to a 32 mm bore yields 402 N, whereas upgrading to a 50 mm bore provides 982 N. Because the stroke is under 300 mm, side-load stress on the rod bearing is minimal, though external guides are recommended if absorbing heavy lateral loads.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other ISO 15552 profile cylinders. To match this exact configuration, select a 40 mm bore, 70 mm stroke, PT G1/4 port, and include the -S magnet option. Note that this standard cylinder will drift if air pressure is lost; for position holding, consider the SAIL or BSAI locking variants.
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 SAI40X70S FAQ
At 0.5 MPa operating pressure, the SAI40X70-S generates 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X70-S is dimensionally interchangeable per ISO 15552 standards. It can serve as a drop-in replacement for other ISO 15552 profile cylinders, provided the 40 mm bore, 70 mm stroke, and G1/4 port match your existing footprint.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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