Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-50S 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 SAIJ80BX950-50S
The AirTAC SAIJ80X950-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 900 to 950 mm, allowing you to dial back the nominal 950 mm stroke by up to 50 mm during machine commissioning. This bore delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa, fitting robust actuation tasks perfectly.
This unit integrates a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. Because the 950 mm stroke exceeds the standard 1500 mm limit for this bore, it is manufactured to order. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet supports CMSE reed and DMSE electronic solid-state switches for precise position feedback.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-50S |
|---|---|
| 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 SAIJ80BX950-50S
| 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 SAIJ80BX950-50S Is Used
Machine Commissioning
Fine-tune the 900-950 mm travel window during setup to hit exact end-of-stroke positions without adding external physical stops.
Product Size Changeover
Adapt extended-stroke machinery to varying product lengths rapidly by dialing the rear adjuster instead of changing the entire actuator.
Extended Reach Handling
Move loads over 950 mm of travel in automated material handling systems where a 25 mm SUS304 rod and adjustable end-stop provide reliable positioning.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX950-50S the Right Cylinder?
Select this 80 mm bore adjustable cylinder when your equipment requires exact end-position tuning without swapping out physical hardware. If you need less force, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa. If your application requires holding a load without live air pressure, note that this rear adjuster acts only as a travel stop, not a lock. You should instead explore an AirTAC SAIL or BSAI series, or utilize an external pilot-operated check valve.
When matching this ISO 15552 interchangeable cylinder for a replacement, verify the 950 mm stroke, 50 mm adjustment range, PT port thread, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR. Since the stroke is 950 mm, you must use an external guide to prevent side-load damage to the 25 mm rod and M20x1.5 rod thread.
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 SAIJ80BX950-50S FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf of push force.
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm, creating a usable travel window of 900 to 950 mm. This mechanism functions purely as a mechanical stop to set the end position and does not lock or hold the load without live air pressure.
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