Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 100mm 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
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40
The AirTAC SAIJ80X100-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 100 mm travel by up to 40 mm. This creates a precise 60-100 mm usable window, ideal for fine-tuning end positions during commissioning without swapping out the unit.
Delivering 2513 N of push force at 0.5 MPa, it features a robust 25 mm carbon steel piston rod upgraded with a SUS304 stainless steel body (option B) for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and air cushioning at both ends manages deceleration across its 30-800 mm/s speed range.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80BX100-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SAIJ80BX100-40 Is Used
Machine Setup & Changeover
Dial in the exact 60-100 mm travel window during commissioning to adapt for new product sizes without machining external stop blocks.
Variable End-Stop Positioning
Use the rear screw to fine-tune the retract distance on the fly, accommodating multiple material thicknesses on a single fixture.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod option in damp or wash-down manufacturing environments where standard carbon steel rods would pit.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40 the Right Cylinder?
Choose this 80 mm bore when 50 mm bore thrust (982 N at 0.5 MPa) is insufficient, but you want to avoid the larger 100 mm class (3927 N). The 40 mm adjustment range is perfect for product-size changeovers on a line, acting as a variable end-stop. Note that the rear adjuster functions only as a travel stop and does not hold the load without live air; for true drop prevention, select an SAIL or BSAI cylinder. It is dimensionally interchangeable with ISO 15552 mounting interfaces, using PT tapered ports and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ80BX100-40 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 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.
The rear adjuster screw acts as a mechanical stop that can shorten the nominal 100 mm stroke by up to 40 mm, giving a usable travel window of 60 to 100 mm. It only sets the end position; it does not lock or hold the load without continuous air pressure.
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