Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50
The AirTAC SAIJ200X210-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a robust 15708N push force at 0.5 MPa, scaling up to 3204 kgf at 1.0 MPa. A PT tapered port thread and a SUS420J2 stainless steel rod are configured for this heavy-duty model. The external rear stopper allows you to trim the nominal 210 mm travel back by up to 50 mm, creating a precise 160-210 mm usable window for fine-tuning end positions during commissioning.
Because the adjuster acts purely as a mechanical stop, it decelerates the travel end but does not hold the load without live air pressure. For load-holding without continuous air supply, an external rod lock or related types like SAIL or BSAI are required. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet, so position sensing is not supported out of the box.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 210 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 SAIJ200AX210-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×210 | 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 SAIJ200AX210-50 Is Used
Heavy Machinery Changeover
Dial in the 160-210 mm travel window during heavy equipment product changeovers to set new end positions without replacing the entire actuator.
Press End-Stop Tuning
Fine-tune the final end-position on large pressing assemblies, using the 50 mm rear stopper to compensate for mechanical wear or tooling variations.
Variable Positioning Setup
Establish precise variable end-stops for heavy material handling, leveraging the 3204 kgf maximum force capacity to move substantial loads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-50 the Right Cylinder?
Choose this 200 mm bore when your application demands maximum thrust, such as 21991N push at 0.7 MPa. If you need less force, stepping down to a 160 mm bore yields 14074N push at 0.7 MPa, which may better suit medium-duty cycles. The 50 mm adjustment range is ideal for product-size changeovers on a line, allowing you to reset the end-stop without swapping the cylinder or bolting on external stops. This model uses a PT port thread and lacks a magnet (-S), so it is not compatible with CMSE or DMSE sensors without modification. To replace an ISO 15552 cylinder, match the 200 mm bore, 210 mm stroke, 50 mm adjust, PT port, and your required mounting from the SAIJ 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 SAIJ200AX210-50 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.7 MPa, the push force increases to 21991N, reaching a maximum of 3204 kgf at 1.0 MPa.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 210 mm down to 160 mm. It decelerates the travel end but does not lock or hold the load without live air pressure.
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