Airtac SAIJ40 Adjustable Cylinder SAIJ40X750-40
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40X750-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 750mm 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
- Stroke750 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 SAIJ40 Adjustable Cylinder SAIJ40X750-40
The AirTAC SAIJ40X750-40 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 628N of push force at 0.5 MPa and features a 710-750mm usable travel window, allowing you to dial back the nominal 750mm stroke by up to 40mm during machine commissioning.
This extruded aluminum barrel utilizes PT tapered port threading (G1/4) and a 16mm carbon steel rod. It includes adjustable air cushions at both ends to decelerate the load, but note that the rear adjuster acts only as a travel stop, not a load-holding lock.
Airtac SAIJ40 Adjustable Cylinder SAIJ40X750-40 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40X750-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 750 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 SAIJ40 Adjustable Cylinder SAIJ40X750-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×750 | 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 SAIJ40 Adjustable Cylinder SAIJ40X750-40 Is Used
End-Position Tuning
Fine-tune the retract end position by up to 40mm during setup without adding external stops.
Product Changeover
Quickly adapt the 710-750mm travel window for varying product sizes on the same line.
Long-Stroke Conveying
Handles extended 750mm travel for pushing or positioning items on assembly conveyors.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40X750-40 the Right Cylinder?
Choose this 40mm bore if your application requires less thrust than the 50mm bore (982N push at 0.5 MPa) but more than the 32mm bore (402N). The 40mm adjustment range is perfect for variable end-stops and product changeovers without swapping cylinders. For load-holding without live air pressure, consider the SAIL or BSAI series instead.
Because the 750mm stroke is long and unsupported, an external guide is recommended to prevent excessive side loading on the 16mm rod and M12x1.25 thread. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ40 Adjustable Cylinder SAIJ40X750-40 FAQ
At 0.5 MPa, it provides 628N of push force and 528N of pull force. At 0.7 MPa, the push force increases to 879N.
A rear external screw stopper lets you mechanically shorten the effective stroke from 750mm down to 710mm. It acts as a travel stop and does not lock the load without live air pressure.
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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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