Airtac SAIJ200 Adjustable Cylinder SAIJ200AX70-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX70-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX70-30
The AirTAC SAIJ200X200-30 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 15708N push force at 0.5MPa, making it a robust choice for heavy-duty actuation. The barrel is extruded aluminum with sensor grooves on both sides, and the rod is SUS420J2 stainless steel for superior corrosion resistance.
This model features a 70mm nominal stroke that can be dialed back by up to 30mm, creating a precise 40-70mm usable travel window for commissioning. It uses PT tapered ports and reaches speeds of 30-500mm/s. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position without swapping cylinders.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX70-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX70-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 70 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 SAIJ200AX70-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×70 | 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 SAIJ200AX70-30 Is Used
Heavy Press Tuning
Dial in the exact 40-70mm travel window during heavy press commissioning to accommodate material thickness variations without adding external stops.
Line Changeover
Adjust the retract end-position on the fly during product size changeovers, leveraging the 15708N force to handle large industrial loads.
Variable End Stops
Use the 30mm rear screw adjustment to set precise variable end stops for heavy clamping tasks where exact positioning is critical.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX70-30 the Right Cylinder?
Select this 200mm bore cylinder when your application requires substantial force (15708N push at 0.5MPa) and exact end-position tuning. The 30mm adjustment range allows for product changeovers on the fly, which is more efficient than machining external stops or using a fixed-stroke SAI cylinder. If you need to drop force significantly, a 160mm bore offers 10053N push at 0.5MPa. Note that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, consider the SAIL or BSAI series. This model is dimensionally interchangeable per ISO 15552, with a PT port, no magnet, and SUS420J2 rod material.
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 SAIJ200AX70-30 FAQ
At a 0.5MPa operating pressure, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. It can deliver up to 3204 kgf at 1.0MPa.
The rear adjuster is a mechanical stop that allows you to trim the 70mm nominal stroke back by up to 30mm, yielding a usable travel window of 40-70mm. It sets the end position but does not lock the load without live air.
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