Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 375mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke375 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50S
The AirTAC SAIJ80X375-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 2513N of pull force at 0.5 MPa and features a 325 to 375 mm usable travel window, allowing you to dial back the 375 mm nominal stroke by up to 50 mm during commissioning. The barrel is extruded aluminum with sensor grooves on both sides.
This unit includes a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered ports. It carries a built-in magnet for position sensing with CMSE reed and DMSE electronic switches. The rear screw acts purely as a travel stop to fine-tune end positions, so it will not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 375 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×375 | 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 SAIJ80 Adjustable Cylinder SAIJ80AX375-50S Is Used
Variable End-Stop Tuning
Dial in the exact 325 to 375 mm travel distance during machine setup to accommodate different material thicknesses without changing hardware.
Product Size Changeover
Quickly adjust the retract position on packaging lines when switching between different carton or product dimensions.
Machine Commissioning
Fine-tune the final end position during installation to align tooling perfectly, eliminating the need for external mechanical stopper blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50S the Right Cylinder?
Choose this 80 mm bore when you need more force than the 63 mm class (1402N pull at 0.5 MPa) but less than the 100 mm class (3681N pull). The adjustable stroke is ideal for product changeovers, letting you set variable end-stops without swapping the cylinder or adding external stops. For load-holding without live pressure, use a SAIL or BSAI cylinder instead. As a direct ISO 15552 replacement, match the 80 mm bore, 375 mm stroke, PT port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 375 mm stroke is long, always use an external guide to prevent side-loading damage to the 25 mm rod.
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 SAIJ80 Adjustable Cylinder SAIJ80AX375-50S FAQ
At 0.5 MPa it provides 2513N push and 2268N pull force, reaching up to 4523N push at 0.9 MPa.
A rear screw mechanism lets you shorten the 375 mm nominal stroke by up to 50 mm, giving a usable travel window of 325 to 375 mm for fine-tuning end positions.
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Covers non-human-caused product damage.
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