Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 225mm 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
- Stroke225 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-40
The AirTAC SAIJ200X225-40 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. It features a rear adjusting screw that allows you to trim the nominal 225 mm stroke back by up to 40 mm, providing a usable travel window of 185 to 225 mm without needing external stops. With a 200 mm bore, it delivers up to 15708 N of push force at 0.5 MPa and 21991 N at 0.7 MPa.
This model incorporates a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and utilizes PT tapered port threads with a G3/4 connection. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet, meaning CMSE or DMSE electronic sensors cannot be used without modification. It supports a standard speed range of 30-500 mm/s and includes adjustable air cushions at both ends to decelerate massive loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 225 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 SAIJ200AX225-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×225 | 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 SAIJ200AX225-40 Is Used
Heavy Press Tuning
Dial in the exact 185-225 mm end position during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Product Line Changeover
Quickly adjust the stroke by up to 40 mm when switching between product sizes on a high-force assembly line, minimizing downtime.
Large Mold Handling
Fine-tune the retraction point for heavy mold positioning systems where a fixed 225 mm stroke might overshoot or under-travel slightly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-40 the Right Cylinder?
Selecting this 200 mm bore cylinder is ideal when your application demands extreme thrust, such as 15708 N push force at 0.5 MPa, which far exceeds the 10053 N provided by the neighboring 160 mm bore. The adjustable 185-225 mm travel window is perfect for machine setups requiring fine-tuning during commissioning or product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. When matching your ISO 15552 replacement, verify the 225 mm stroke, 40 mm adjustment range, PT G3/4 port, and the absence of a magnet.
Because the stroke is 225 mm, the 40 mm diameter rod handles high side loads well, but an external guide remains essential for unsupported loads. Remember that the rear adjuster and air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For load-holding requirements, consider an AirTAC SAIL or BSAI cylinder. This SKU uses the reduced SAIJ mounting set: 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 SAIJ200AX225-40 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 225 mm down to a minimum of 185 mm. This creates a 185-225 mm adjustable window for fine-tuning the end position at commissioning, but it acts as a stop, not a lock.
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