Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 135mm 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
- Stroke135 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-20
The AirTAC SAIJ200X135-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to 115-135 mm without swapping out the unit. Built with a robust 40 mm SUS420J2 stainless steel rod and PT tapered G3/4 ports, it generates a massive 15708 N of push force at 0.5 MPa, making it ideal for heavy-duty positioning tasks.
This extruded aluminum profile barrel omits the FB, CA, CB, and CR mounting options found on some standard variants, offering a focused set of accessories (Basic, FA, LB, TC, FTC, TCM1, TCM2) to simplify your design. The rear adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 135 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 SAIJ200AX135-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×135 | 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 SAIJ200AX135-20 Is Used
Heavy Press Tuning
Dial in the exact 115-135 mm end-stop during heavy press commissioning to accommodate varying material thicknesses without adding external stopper blocks.
Product Line Changeover
Quickly adjust the travel window on automated assembly lines when switching to a new product size, leveraging the 15708 N push force for massive actuation.
Large Valve Actuation
Fine-tune the closing stroke of large industrial valves where precise end-positioning is critical, using the robust 40 mm SUS420J2 stainless steel rod.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-20 the Right Cylinder?
Choose this 200 mm bore cylinder when you need extreme thrust, such as 15708 N push at 0.5 MPa, combined with a 115-135 mm variable end-stop for product changeovers. If your application requires less force, stepping down to a 160 mm bore yields 10053 N push at 0.5 MPa, which might better suit lighter machinery and save physical space.
Because the 135 mm stroke is relatively short, side-load stress on the 40 mm rod is minimal, but always ensure the load is guided externally for heavy masses. Remember that the rear adjuster is a travel stop, not a locking mechanism; for fail-safe load holding without live air, select the SAIL or BSAI series instead. To match this ISO 15552 replacement exactly, verify the 200 mm bore, 135 mm stroke, 20 mm adjustment, PT G3/4 ports, and non-magnet configuration.
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 SAIJ200AX135-20 FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can deliver up to 3204 kgf at its maximum 1.0 MPa pressure.
The rear mechanical adjuster allows you to trim the nominal 135 mm stroke back by up to 20 mm, creating a usable travel window of 115-135 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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