Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-30
The AirTAC SAIJ200X55-30 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. It features a robust 200 mm bore and a 55 mm nominal stroke, which the rear adjusting screw can trim by up to 30 mm, yielding a precise 25-55 mm usable travel window. Delivering 15708 N of push force at 0.5 MPa, it handles massive loads with ease while utilizing a PT tapered port thread and an SUS420J2 stainless steel rod for superior corrosion resistance.
This adjustable-stroke design allows operators to fine-tune the retract end position during commissioning or product changeovers without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and while this specific SKU lacks a magnet, the platform supports AirTAC CMSE reed and DMSE electronic sensors when needed. The rear adjuster functions strictly as a travel stop to set deceleration, not as a lock, meaning live air is required to hold the load in place.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 55 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 SAIJ200AX55-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×55 | 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 SAIJ200AX55-30 Is Used
Heavy-Duty Pressing
Delivers 15708 N of thrust at 0.5 MPa for assembling large components, with the 25-55 mm adjustable window allowing precise tuning of the final pressing depth.
Product Changeover
Quickly dial in the rear stopper by up to 30 mm during line format changes, accommodating different product sizes without physically swapping out the actuator.
Short-Stroke Clamping
Ideal for securing massive workpieces in machining fixtures, utilizing the SUS420J2 stainless steel rod to resist corrosion in harsh industrial environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-30 the Right Cylinder?
Selecting the SAIJ200X55-30 makes sense when your application demands extreme force alongside a short, highly adjustable stroke. If 15708 N of push force at 0.5 MPa is overkill, stepping down to a 160 mm bore yields 10053 N while maintaining a similar footprint. Conversely, if you need to hold a load securely without continuous air pressure, this standard cylinder will not suffice; you should explore the SAIL air-released lock or BSAI clamp-lock variants instead. For an exact ISO 15552 replacement match, verify the 200 mm bore, 55 mm stroke, 30 mm adjustment, PT ports, and your required mounting set.
Because this cylinder produces high thrust over a short 55 mm travel distance, side-loading is less of a concern than with long-stroke models, but proper alignment remains critical to prevent seal wear. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. The 40 mm diameter rod and M36x2 thread provide exceptional rigidity, ensuring the piston rod withstands significant side loads and impacts during operation.
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 SAIJ200AX55-30 FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder generates 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 adjusting screw acts as a mechanical stopper that allows you to shorten the 55 mm nominal stroke by up to 30 mm, creating a 25-55 mm usable travel window. It only sets the travel end and does not lock the load without live air pressure.
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