Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-50 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 SAIJ200AX400-50
The AirTAC SAIJ200X400-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 350-400 mm. Built with a robust 40 mm piston rod and PT tapered G3/4 ports, it delivers 15708 N of push force at 0.5 MPa, scaling up to 21991 N at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches.
This configuration utilizes a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance. The rear adjustment screw acts strictly as a travel stop for end-position tuning during commissioning; it does not lock the load. For applications requiring position holding without live air pressure, an external rod lock or related SAIL series is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-50 |
|---|---|
| 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 SAIJ200AX400-50
| 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 SAIJ200AX400-50 Is Used
Heavy Press Setup
Dial in the exact 350-400 mm end-stop for large industrial presses during initial commissioning or when changing heavy tooling.
Product Size Changeover
Adjust the retract position on the fly to accommodate varying large product dimensions on a production line without swapping cylinders.
End-Position Tuning
Fine-tune the rear travel limit to compensate for mechanical wear or to set precise clamping distances on massive assemblies.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-50 the Right Cylinder?
Choose this 200 mm bore when 160 mm (10053 N at 0.5 MPa) cannot provide enough push force for heavy-duty positioning. The 50 mm adjustment range is ideal for fine-tuning the end-stop during machine setup or product changeover without adding external stops. Because the total stroke is 400 mm, an external guide is recommended to manage side loads on the long unsupported rod. This unit uses PT tapered ports and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ200AX400-50 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 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw allows you to shorten the nominal 400 mm stroke by up to 50 mm, providing a usable travel window of 350-400 mm. It functions as a mechanical stop for end-position tuning and does not hold the load without live air.
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