Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-75 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 SAIJ200AX210-75
The AirTAC SAIJ200X210-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers immense thrust, generating 15708N of push force and 15080N of pull force at 0.5 MPa. The integrated rear stopper provides a usable travel window of 135-210 mm, allowing you to dial back the nominal 210 mm stroke by up to 75 mm during machine setup.
This heavy-duty unit features a SUS420J2 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to fine-tune the end position; it does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-75 |
|---|---|
| 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 SAIJ200AX210-75
| 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 SAIJ200AX210-75 Is Used
Heavy Press Changeover
Dial in the exact 135 to 210 mm end-position during heavy press setup, accommodating different material thicknesses without changing the cylinder.
Large Assembly Tuning
Fine-tune the retraction stopper on large automated assembly lines to perfect mating forces and prevent mechanical binding.
Variable Positioning Stops
Adjust the rear travel limit on the fly for short-run production batches, utilizing the 75 mm adjustment window to modify end-stops quickly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX210-75 the Right Cylinder?
Choose this 200 mm bore when your application requires maximum thrust, stepping up from a 160 mm bore that yields 10053N push force at 0.5 MPa. An adjustable stroke is highly beneficial here, as trimming 75 mm off a large cylinder at commissioning prevents the need to physically swap out a massive component or bolt on external stops during product changeovers. For any load-holding requirements without continuous air pressure, you must integrate an external pilot-operated check valve or switch to an AirTAC SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 210 mm stroke, 75 mm adjustment range, PT G3/4 ports, and the SUS420J2 rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR footprints. Because the stroke is 210 mm, ensure you use an external guide to prevent excessive side-loading on the 40 mm rod and M36x2 thread.
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 SAIJ200AX210-75 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708N of push force and 15080N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 210 mm nominal stroke down to a minimum of 135 mm. This creates a 135-210 mm usable window for fine-tuning the end position at commissioning, though it does not lock the load without live air.
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