Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX200-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 200mm 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
- Stroke200 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 SAIJ80BX200-40
The AirTAC SAIJ80X200-40 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. With a nominal 200mm stroke and a 40mm adjustment range, you can dial back the effective travel to anywhere within a 160-200mm window. This fine-tuning capability is set directly via an external stopper screw at commissioning, eliminating the need to swap out the cylinder or bolt on external stops when product sizes change.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance in humid or washdown environments. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches. The rear adjuster acts purely as a mechanical travel stop to set the retraction endpoint and does not lock or hold the load without live air pressure. For applications requiring true load-holding without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAIJ80BX200-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SAIJ80BX200-40 Is Used
Product Changeover
Dial in the exact retraction end-stop from 160 to 200mm during production line size changes without replacing the cylinder.
Commissioning Calibration
Fine-tune the final resting position of a heavy 3518N press or clamp mechanism during initial machine setup.
Variable End-Stop Forming
Adjust the stroke length on the fly for multi-format packaging or forming operations that require different retraction depths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-40 the Right Cylinder?
Select this 80mm bore cylinder when your application requires high thrust forces up to 3518N at 0.7 MPa, but exact end-positioning needs on-site flexibility. The 40mm adjustment window allows precise variable end-stops during machine setup or product changeover, a major advantage over a fixed-stroke SAI cylinder. If your force requirements are lower, stepping down to a 63mm bore provides 2182N at 0.7 MPa, whereas stepping up to a 100mm bore yields 5497N. This model uses a PT tapered G3/8 port, the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), and no magnet. As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders.
Because the 200mm stroke is well within the 1500mm maximum standard stroke for this bore, side-loading is less of a concern, but long unsupported loads should still use an external guide. The 25mm rod and M20x1.5 thread provide excellent rigidity and side-load capacity. Operating speed ranges from 30-800mm/s, governed by the integrated variable air cushions at both ends.
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 SAIJ80BX200-40 FAQ
The rear adjuster screw allows you to mechanically shorten the effective stroke by up to 40mm. This creates a usable travel window of 160-200mm, letting you set the exact retraction endpoint without adding external stops.
At 0.7 MPa, the push force increases to 3518N.
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