Airtac SAI40 Standard Air Cylinder SAI40X70
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X70 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 SAI40X70
The AirTAC SAI40X70 is a double-acting ISO 15552 profile cylinder offering 628 N of push force at 0.5 MPa. Its 70 mm stroke provides exact motion for mid-range packaging and handling tasks. The extruded aluminum barrel omits tie rods, yielding a smooth exterior that simplifies mounting.
This unit features a standard carbon steel piston rod and PT tapered G1/4 port threads. Because it lacks a magnetic piston, position sensing requires external switches rather than embedded reed sensors. Adjustable air cushions at both ends absorb impact energy to maximize service life.
Airtac SAI40 Standard Air Cylinder SAI40X70 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X70 |
|---|---|
| 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 SAI40X70
| 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 SAI40X70 Is Used
Component Clamping
Secures 628 N of clamping pressure for machining small metal parts during automated milling operations.
Package Diverting
Drives a 70 mm stroke diverter arm to route small to medium boxes on a packaging conveyor line.
Pallet Stops
Acts as a pneumatic stop gate for low-profile pallets entering a robotic pick-and-place station.
Is the Airtac SAI40 Standard Air Cylinder SAI40X70 the Right Cylinder?
Choose this 40 mm bore when a 32 mm bore (402 N at 0.5 MPa) lacks thrust, but a 50 mm bore (982 N) would be physically oversized. The 70 mm stroke fits compact automation cells where every millimeter of footprint matters.
For this 70 mm stroke, side-load bending is minimal, but always verify rod alignment. Remember that the standard SAI does not hold loads safely upon air loss; if your fixture needs dead-stop security, deploy an external rod lock or specify the SAIL variant. To match existing frames, use FA flange or LB foot brackets and specify PT porting.
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 SAI40X70 FAQ
The SAI40X70 generates 628 N of push force and 528 N of pull force at a 0.5 MPa operating pressure.
Yes. As a genuine ISO 15552 profile cylinder, its mounting dimensions are fully interchangeable with other ISO 15552 standard cylinders of the same bore size.
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.
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