Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-40S
The AirTAC SAIJ200X50-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a massive 15708N push force at 0.5 MPa and uses a 50mm nominal stroke dialed back by up to 40mm, creating a 10-50mm usable travel window for exact end-position tuning. This specific SKU includes a SUS420J2 stainless steel rod for enhanced corrosion resistance and a magnet for electronic DMSE or reed CMSE sensors.
Unlike fixed-stroke SAI cylinders, this rear adjuster acts purely as a mechanical stop to fine-tune the retract position during machine commissioning or product changeovers without swapping the barrel. It features a PT tapered G3/4 port and operates at speeds of 30-500mm/s. The extruded aluminum barrel provides sensor grooves on both sides, and the mounting interface accepts Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 50 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 SAIJ200AX50-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SAIJ200AX50-40S Is Used
Heavy Press Tuning
Dial in the exact 10-50mm travel window during heavy press commissioning without replacing the cylinder or adding external mechanical stops.
Product Changeover
Quickly adjust the retract end-position on automated assembly lines when switching between product variants of varying thicknesses.
Sensor Setup
Leverage the integrated magnet and dual sensor grooves to mount CMSE or DMSE switches precisely alongside the tuned stroke length.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-40S the Right Cylinder?
Choose this 200mm bore cylinder when your application requires extreme thrust, delivering 15708N push and 15080N pull at 0.5 MPa. If you need less force, stepping down to a 160mm bore yields 10053N push at the same pressure, but this 200mm size is unmatched for heavy loads. The adjustable stroke is ideal for setups requiring variable end-stops, but note that the rear adjuster is a travel stop, not a lock; it will not hold the load without live air. For true fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder instead.
This SAIJ200X50-40-S is dimensionally interchangeable per ISO 15552. To match this exact configuration, select a 200mm bore, 50mm stroke, 40mm adjustment, PT port thread, SUS420J2 (A) rod material, and a magnet (-S) for CMSE/DMSE sensors. The robust 40mm rod and M36x2 thread handle high side loads well, though any long unsupported stroke still requires an external guide.
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 SAIJ200AX50-40S FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. The maximum thrust is 3204 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the 50mm nominal stroke by up to 40mm, providing a usable travel window of 10 to 50mm. It functions as a mechanical stop for end-position tuning and does not lock or hold the load without live air pressure.
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