Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-40 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 SAIJ80BX750-40
The AirTAC SAIJ80X750-40 is a double-acting, single-rod profile cylinder dimensionally interchangeable per ISO 15552, featuring an external rear stroke adjuster. It provides a nominal 750 mm stroke that can be fine-tuned backward by up to 40 mm, yielding a usable travel window of 710-750 mm. This allows precise end-position calibration at commissioning without adding external stops. At 0.5 MPa, it delivers 2513 N of push force and 2268 N of pull force.
This SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic switches. Speed ranges from 30-800 mm/s, and adjustable air cushions at both ends manage end-of-stroke deceleration.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-40 |
|---|---|
| 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 SAIJ80BX750-40
| 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 SAIJ80BX750-40 Is Used
Machine Changeover
Dial in the 710-750 mm retract position during product size changes on a conveyor line without swapping out the physical cylinder.
End-Stop Tuning
Fine-tune the exact end position during machine commissioning to perfect a 2513 N press or push-off motion at 0.5 MPa.
Variable End Positioning
Adjust the rear stopper on the fly to accommodate varying package lengths or material push distances in automated assembly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-40 the Right Cylinder?
Choose this 80 mm bore when 50 mm bore thrust (982 N push at 0.5 MPa) is insufficient, but you want to avoid stepping up to the 100 mm class (3927 N). The 40 mm adjustment range is ideal for product changeovers on a line, letting you reset the retract end-stop without physically swapping the cylinder. To replace an ISO 15552 cylinder, match the 80 mm bore, 750 mm stroke, 40 mm adjustment, PT port thread, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set (the SAIJ series omits FB, CA, CB, and CR mounts).
Because the 750 mm stroke is long, the 25 mm rod should not carry excessive side loads; use an external guide rail to prevent binding. Note that the rear adjuster acts only as a travel stop, not a lock. If the application requires load-holding without live air pressure, use an SAIL air-released lock, a BSAI clamp-lock, or an external pilot-operated check valve.
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 SAIJ80BX750-40 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N. The operating speed ranges from 30-800 mm/s.
The rear external screw stopper allows you to shorten the effective travel from the nominal 750 mm by up to 40 mm, creating a usable stroke window of 710-750 mm. This adjuster sets the travel end and works with the air cushions for deceleration, but it does not lock or hold the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.