Airtac SAI40 Standard Air Cylinder SAI40BX135
The AirTAC SAI40 Standard Air Cylinder SAI40BX135 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 135mm 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
- Stroke135 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 SAI40BX135
The AirTAC SAI40X135 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 135mm stroke. It generates 628N of push force at 0.5 MPa, making it well-suited for mid-range automation tasks. This specific configuration is built with a SUS304 stainless steel rod (material code B) and utilizes PT tapered port threads for secure pneumatic connections.
Because the 135mm stroke falls outside the standard increments, it is manufactured as a non-standard, made-to-order stroke. The extruded aluminum barrel includes integrated sensor grooves on both sides, allowing for flexible positioning of switches when needed.
Airtac SAI40 Standard Air Cylinder SAI40BX135 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX135 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 135 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 SAI40BX135
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×135 | 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 SAI40BX135 Is Used
Package Diverting
Ideal for actuating diverters on packaging lines where 628N of push force at 0.5 MPa easily handles standard product weights.
Material Clamping
Provides reliable holding force for medium-duty machining or assembly fixtures using its 879N push capability at 0.7 MPa.
Gate Control
Actuates lightweight access gates or machine guards with a smooth 135mm stroke and adjustable end-of-stroke cushioning.
Is the Airtac SAI40 Standard Air Cylinder SAI40BX135 the Right Cylinder?
When selecting this model, consider that stepping down to a 32mm bore reduces the 0.5 MPa push force to 402N, while stepping up to a 50mm bore increases it to 982N. For this 135mm stroke, side load is minimal, but always ensure the load is axially aligned to prevent premature wear on the rod bearing.
This cylinder is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other ISO 15552 profile cylinders. To match this exact unit, specify the 40mm bore, 135mm stroke, PT G1/4 port, desired mounting accessory, and note that no magnet is required. Remember that the adjustable air cushions only decelerate the piston near stroke end; they do not hold a load. If position holding is required without live pressure, use the SAIL locking variant or an external rod lock.
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 SAI40BX135 FAQ
At an operating pressure of 0.5 MPa, the SAI40X135 delivers 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X135 is a true ISO 15552 profile cylinder, meaning its mounting interface dimensions are interchangeable with other ISO 15552 standard cylinders.
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 SAI40BX135
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.