Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40
The AirTAC SAIJ200X80-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning the retract end-position. With a nominal 80mm stroke and a 40mm adjustment range, it provides a usable travel window of 40 to 80mm, allowing precise end-stop calibration during machine commissioning or product changeovers without adding external stops.
Belonging to the 200mm bore class, it generates 15708N of push force at 0.5MPa and 21991N at 0.7MPa. This heavy-duty unit uses a robust 40mm carbon steel rod with an M36x2 thread, paired with PT tapered G3/4 ports. It incorporates 50mm variable air cushions at both ends and features extruded aluminum barrel sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX80-40 Is Used
Heavy Press Tuning
Dial in the exact 40 to 80mm travel window on a heavy press to accommodate varying material thicknesses without physically swapping the cylinder.
Product Changeover Stops
Adjust the retract position on the fly during packaging line product size changes to set new physical end-stops for diverter arms.
Assembly Station Calibration
Fine-tune the end-position during initial commissioning to perfectly seat large components, using the rear screw rather than external shims.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-40 the Right Cylinder?
Choose this 200mm bore when an application demands high thrust, stepping up significantly from a 160mm bore that yields 10053N at 0.5MPa. The adjustable stroke is ideal for setups requiring variable end-stops, but note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For true load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder.
This model is dimensionally interchangeable with ISO 15552 cylinders. To match this exact configuration, specify a 200mm bore, 80mm stroke, 40mm adjustment, PT port threads, SUS420J2 (A) rod material, and no magnet. It supports the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ200 Adjustable Cylinder SAIJ200AX80-40 FAQ
It features a rear adjusting screw that lets you shorten the effective travel from the nominal 80mm down to 40mm, creating a 40-80mm usable window. The adjuster acts as a physical stop and does not lock the load without live air pressure.
At 0.5MPa operating pressure, it provides 15708N of push force and 15080N of pull force. At 0.7MPa, the push force increases to 21991N.
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