Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50S
The AirTAC SAIJ80X950-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 4523N of push force at 0.9 MPa and features a 950mm nominal stroke that can be fine-tuned backward by up to 50mm, creating a precise 900-950mm usable travel window. This built-in adjustability allows operators to dial in exact retract end positions during commissioning without adding external stops.
This SKU includes a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and carries a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) pairs directly with AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts strictly as a travel stop for end-position tuning, not as a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 950 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 SAIJ80AX950-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAIJ80 Adjustable Cylinder SAIJ80AX950-50S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 900-950mm window during machine commissioning to accommodate slight mechanical variations without machining new hard stops.
Product Size Changeover
Quickly adjust the rear stopper on a packaging line to handle different carton depths, reducing downtime between production runs.
Heavy Material Handling
Leverage the 4523N push force to move heavy pallets or workpieces, using the fine-tune adjustment to set the precise resting distance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-50S the Right Cylinder?
Choose this 80mm bore when an application requires substantial thrust, such as the 2513N push force at 0.5 MPa, but does not need the full 3927N output of a 100mm bore. The adjustable stroke is ideal for production lines running mixed product sizes, allowing rapid changeover by tweaking the 900-950mm travel window rather than physically swapping cylinders. For fixed-length applications without end-position tuning, a standard SAI cylinder is sufficient.
When specifying a replacement, match the 80mm bore, 950mm stroke, PT port thread, and the -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 950mm stroke is long, the 25mm rod diameter will still experience leverage forces; always use an external guide to prevent side-loading damage. If the machine requires the load to be held without live air pressure, select a SAIL lock or BSAI clamp-lock cylinder instead of relying on the rear stopper.
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 SAIJ80AX950-50S FAQ
At 0.9 MPa operating pressure, this 80mm bore cylinder provides a push force of 4523N and a pull force of 4071N. At 0.5 MPa, the push force is 2513N.
The rear adjusting screw allows you to shorten the 950mm nominal stroke by up to 50mm, providing a usable travel window of 900-950mm. The adjuster functions as a mechanical stop and does not lock the load without continuous air pressure.
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