Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 750mm 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
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-75S
The AirTAC SAIJ80X750-75-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 2513N of push force at 0.5 MPa and utilizes a 25mm SUS304 stainless steel rod with M20x1.5 threading. The integrated -S magnet enables position detection via AirTAC CMSE reed or DMSE electronic sensors housed in the dual-side barrel grooves.
Equipped with a 75mm adjustment range, this SKU allows you to dial back the 750mm nominal stroke to anywhere within a 675-750mm travel window. This fine-tuning occurs at the retract end via an external stopper screw, letting you set exact end positions during commissioning without swapping hardware or adding external stops.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80BX750-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX750-75S Is Used
Product Changeovers
Quickly reconfigure the 675-750mm retract end-stop for different sized parts on a single assembly line without changing the cylinder.
Machine Setup
Fine-tune the exact end position during commissioning to dial in precise mechanical stops, avoiding the need for external shims.
Variable End Stops
Adjust the effective travel window on the fly for sorting or diverting applications where package dimensions frequently vary.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-75S the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than the 50mm option (982N push at 0.5 MPa) but less than the 100mm class (3927N). The adjustable 675-750mm window is ideal for product changeovers on a line, replacing fixed-stroke SAI cylinders when variable end-stops are needed. Note that the rear adjuster acts only as a travel stop, not a load lock; for position holding without live air, specify an SAIL or BSAI cylinder.
Because this model features a 750mm stroke, the 25mm rod and M20x1.5 thread still require external guidance to prevent excessive side-loading on the piston. This SKU is dimensionally interchangeable per ISO 15552 and includes PT tapered ports. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ80BX750-75S FAQ
At 0.5 MPa, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. The maximum thrust is 513 kgf at 1.0 MPa, and the operating speed range is 30-800 mm/s.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 750mm nominal stroke by up to 75mm, providing a usable travel window of 675-750mm. It sets the end position but does not lock the load without live air pressure.
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