Airtac SAI40 Standard Air Cylinder SAI40X950S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X950S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 950mm 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
- Stroke950 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 SAI40X950S
The AirTAC SAI40X950-S is a double-acting ISO 15552 profile cylinder engineered with a 40mm bore and a 950mm made-to-order stroke. It delivers a push force of 628N and a pull force of 528N at 0.5 MPa. This extended stroke length is ideal for automating long-travel material transfer or packaging tasks that require reliable linear motion.
Equipped with a magnetic piston, this unit seamlessly integrates CMSE or DMSE sensor switches for precise end-position detection. The standard carbon steel piston rod ensures robust structural integrity for heavy-duty cycling, while the extruded aluminum barrel design eliminates traditional tie-rods for a sleeker, space-efficient footprint.
Airtac SAI40 Standard Air Cylinder SAI40X950S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X950S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 950 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 SAI40X950S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×950 | 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 SAI40X950S Is Used
Long-Transfer Conveying
Drives extended-stroke pusher arms on packaging lines to transfer products smoothly between distant conveyor belts.
High-Bay Retrieval
Actuates long-reach extraction arms in automated storage systems, utilizing the magnetic piston for reliable position feedback.
Multi-Stage Assembly
Executes sequential part placement over a wide working envelope, taking advantage of the 950mm travel distance.
Is the Airtac SAI40 Standard Air Cylinder SAI40X950S the Right Cylinder?
Selecting this 40mm bore over the smaller 32mm version upgrades your push force from 402N to 628N at 0.5 MPa, whereas stepping up to a 50mm bore would yield 982N if your pneumatic system requires greater thrust. Because this model features a 950mm stroke, it is critical to manage side loads; an unsupported rod of this length is highly susceptible to bending and premature bearing wear. Always pair this cylinder with an external guide rail or use a dedicated guided cylinder to prevent mechanical failure.
As a genuine AirTAC component, it offers drop-in dimensional interchangeability with other ISO 15552 cylinders. The unit features a PT tapered G1/4 port, an M12x1.25 rod thread, and 30mm adjustable air cushions at both ends. Note that the adjustable cushion only decelerates the piston near the stroke end; it does not hold a load. If your application requires position holding without live air pressure, specify the SAIL or BSAI locking 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 SAI40X950S FAQ
At an operating pressure of 0.5 MPa, this 40mm bore cylinder provides a push force of 628N and a pull force of 528N. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI series is a true ISO 15552 profile cylinder. It provides drop-in dimensional interchangeability with other ISO 15552 standard cylinders, matching standard mounting and port locations.
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1-Year Warranty
Covers non-human-caused product damage.
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