Airtac SAI40 Standard Air Cylinder SAI40X75S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 SAI40X75S
The AirTAC SAI40X75-S is a double-acting ISO 15552 profile cylinder engineered for standardized mounting interchangeability. Delivering a push force of 628 N and a pull force of 528 N at 0.5 MPa, it provides the ideal thrust class for mid-range automation tasks. The 75 mm stroke is perfectly suited for compact, fast-acting clamping and lifting mechanisms.
This specific configuration includes a magnetic piston (-S) that enables direct integration with CMSE or DMSE series reed switches. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting, while the standard carbon steel piston rod ensures durable, high-cycle performance.
Airtac SAI40 Standard Air Cylinder SAI40X75S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAI40X75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SAI40X75S Is Used
Component Clamping
Provides reliable 628 N clamping force at 0.5 MPa for securing medium-sized machined parts during milling or drilling operations.
Package Diverting
Uses the 75 mm stroke to rapidly extend diverter arms on packaging lines, benefiting from the 30-800 mm/s speed range for high throughput.
Pallet Lift Stops
Acts as a pop-up mechanical stop for pallet positioning on roller conveyors, utilizing the integrated magnet for precise end-position detection.
Is the Airtac SAI40 Standard Air Cylinder SAI40X75S the Right Cylinder?
When upgrading from a 32 mm bore cylinder, this 40 mm model significantly increases thrust from 402 N to 628 N at 0.5 MPa, making it the logical next step when your payload slightly exceeds smaller capacities. If your application requires even greater force, stepping up to a 50 mm bore yields 982 N of push force. Because this model features a 75 mm stroke, side-load stress on the rod bearing is minimal compared to longer strokes.
This cylinder uses a PT tapered port thread and pairs with standard ISO 15552 mounting accessories like FA flanges or LB foot brackets. Remember that standard SAI cylinders rely on live air pressure to hold position; the adjustable air cushions only decelerate the piston at stroke ends. If your process requires true fail-safe load holding without continuous pressure, consider the SAIL locking variant 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 SAI40 Standard Air Cylinder SAI40X75S FAQ
At an operating pressure of 0.5 MPa, this 40 mm bore cylinder generates a push force of 628 N and a pull force of 528 N. At the maximum 1.0 MPa pressure, the theoretical push force reaches 128 kgf.
Yes, it is built to the ISO 15552 profile standard, making its mounting interface and envelope dimensions fully interchangeable with other ISO 15552 compliant cylinders. It is not a tie-rod design, ensuring a clean exterior profile.
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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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Most inquiries answered within 7-8 hours.
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