Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-40 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 SAIJ200AX210-40
The AirTAC SAIJ200X210-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 170-210 mm window. Built with a robust 40 mm diameter piston rod and a PT tapered G3/4 port, it handles immense loads, delivering a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. The extruded aluminum barrel design incorporates sensor grooves on both sides for straightforward position feedback integration.
This specific SKU utilizes a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance, while the rear stopper mechanism enables precise end-position calibration during commissioning without requiring external stops. The adjustable screw acts purely as a travel stop to set the retract position, meaning it will not hold the load dynamically without live air pressure; for true load-holding, a SAIL or BSAI variant is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-40 |
|---|---|
| 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 SAIJ200AX210-40
| 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 SAIJ200AX210-40 Is Used
Heavy Press Changeover
Dial in the 170-210 mm stroke window on the fly to accommodate varying material thicknesses in heavy pressing operations without swapping cylinders.
Large Fixture Positioning
Provides up to 15708 N of push force at 0.5 MPa to move massive tooling fixtures, using the rear stopper for exact end-position calibration.
Assembly Actuator Tuning
Fine-tune the retract end-stop during machine commissioning to perfect part seating, relying on the SUS420J2 rod for durability in harsh environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-40 the Right Cylinder?
Selecting this 200 mm bore model is appropriate when your application requires maximum thrust up to 15708 N at 0.5 MPa, stepping up significantly from the 100 mm bore class which provides 3927 N. The 40 mm adjustment range is particularly valuable for machinery undergoing frequent product changeovers, allowing operators to dial in the exact 170-210 mm end-stop on the fly rather than swapping out a fixed-stroke SAI cylinder.
Because this is a 210 mm stroke configuration, the 40 mm rod diameter provides substantial rigidity, but long unsupported strokes still necessitate an external guide to manage side loads. It is dimensionally interchangeable per ISO 15552 mounting-interface dimensions and supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Operating speed is 30-500 mm/s, and it does not include a magnet for CMSE or DMSE sensors.
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 SAIJ200AX210-40 FAQ
At a 0.5 MPa operating pressure, the SAIJ200X210-40 generates a push force of 15708 N and a pull force of 15080 N. It can deliver a maximum push force of 21991 N at 0.7 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the 210 mm nominal stroke by up to 40 mm, creating a usable travel window of 170-210 mm. It is a travel stop, not a lock, so it cannot hold the load without live air pressure.
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