Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX400-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 400mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-100
The AirTAC SAIJ80X400-100 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 2513N pull force at 0.5 MPa, utilizing a 25mm SUS304 stainless steel rod and a PT G3/8 port. This specific configuration provides a 400mm nominal stroke that can be fine-tuned down by up to 100mm, creating a precise 300-400mm usable travel window during commissioning.
Because the adjustment mechanism acts purely as a mechanical stop on the retract end, it cannot hold a load without continuous live air pressure. The extruded aluminum barrel includes dual sensor grooves, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. For applications requiring load holding without air, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SAIJ80BX400-100 Is Used
Product Changeover
Dial in the retract position up to 100mm when switching between different product sizes on the same packaging line, avoiding mechanical rebuilds.
End-Position Tuning
Fine-tune the exact stopping point of a 400mm stroke during machine commissioning to perfect the seating of heavy components.
Variable End Stops
Establish flexible mechanical limits for automated assembly equipment without installing separate external stopper hardware.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-100 the Right Cylinder?
Selecting this 80mm bore over a smaller 63mm variant increases your push thrust from 1559N to 2513N at 0.5 MPa, making it suitable for heavier actuation tasks. The 100mm adjustment window is ideal for production lines that undergo frequent product-size changeovers, allowing operators to dial in the exact retract position without swapping cylinders or adding external stopper blocks. If your process requires the rod to stay put during a complete air loss, a standard SAIJ will not suffice, and a locking cylinder must be specified.
With a 400mm stroke, the 25mm rod and M20x1.5 thread provide substantial rigidity, but an external guide is highly recommended to prevent excessive side-loading on the piston. This model omits a magnet, so position sensing requires a physical switch track or a separate sensor setup. To achieve a direct replacement, ensure your setup matches the PT G3/8 port, the chosen mounting bracket, and the 300-400mm travel requirement.
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 SAIJ80BX400-100 FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that allows you to shorten the 400mm nominal stroke by up to 100mm, providing a usable travel window of 300-400mm. It only sets the end position and does not lock the load without live air.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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