Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm 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
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-20
The AirTAC SAIJ200X400-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 380-400 mm usable travel window. Delivering 15708 N of push force at 0.5 MPa, this massive bore handles heavy loads while allowing precise end-position tuning during commissioning without swapping out the unit.
It features a SUS420J2 stainless steel rod for superior corrosion resistance and PT tapered port threads for a robust pneumatic seal. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount position switches if needed.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 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 SAIJ200AX400-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX400-20 Is Used
Heavy Press Tuning
Dial in the exact 380-400 mm end position during machine setup to accommodate material thickness variations without adding external stops.
Product Changeover
Quickly adjust the retract distance on a packaging line when switching between different large-format product sizes.
Fixture Alignment
Fine-tune the clamping reach on heavy industrial fixtures to ensure precise alignment before applying full clamping force.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-20 the Right Cylinder?
Choose this 200 mm bore when your application demands up to 15708 N of thrust at 0.5 MPa; stepping down to a 160 mm bore drops the push force to 10053 N. The 20 mm rear adjuster screw acts purely as a mechanical stop to trim the effective stroke, meaning it cannot hold the load without live air pressure. For secure load-holding in the event of pressure loss, consider the SAIL or BSAI series instead.
Because the 400 mm stroke is substantial, the 40 mm diameter rod and M36x2 thread provide rigidity, but an external guide is still recommended to prevent excessive side-loading on the piston. This cylinder is dimensionally interchangeable per ISO 15552 standards and supports a reduced mounting set including 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 SAIJ200AX400-20 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the nominal 400 mm stroke by up to 20 mm, creating a 380-400 mm adjustable travel window. It functions as a travel stop only and does not lock or hold the load without continuous air pressure.
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