Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-75
The AirTAC SAIJ200X350-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits precise end-position tuning. It provides a usable travel window of 275 to 350 mm, allowing you to dial back the nominal 350 mm stroke by up to 75 mm during commissioning without adding external stops. Suited for heavy loads, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, peaking at 3204 kgf at 1.0 MPa.
This variant uses a SUS420J2 stainless steel rod for enhanced durability against moisture and minor corrosive environments. PT tapered port threads are standard on this 200 mm bore. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 350 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 SAIJ200AX350-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×350 | 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 SAIJ200AX350-75 Is Used
Heavy Machinery Positioning
Provides up to 3204 kgf of maximum thrust to shift heavy structural frames, with the 75 mm adjustment window allowing precise alignment of large welded assemblies during setup.
Variable Product Forming
Accommodates different material lengths on a single press line by dialing the travel end back from 350 mm to 275 mm, eliminating the need to physically swap cylinders for each product run.
Automated Line Changeover
Speeds up equipment reconfiguration when transitioning between product batches, using the rear stopper screw to fine-tune the retract position without disassembling the mounting hardware.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-75 the Right Cylinder?
Selecting this 200 mm bore model is appropriate when your application requires the maximum standard thrust class, offering 15708 N at 0.5 MPa. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N at 0.5 MPa, which may save space and air consumption. The adjustable stroke is chosen over a fixed SAI cylinder when a machine requires variable end-stops to handle multiple product sizes on a single line. Because the 350 mm stroke is substantial, an external guide is recommended to prevent excessive side-loading on the rod.
For ISO 15552 dimensionally interchangeable replacements, match the 200 mm bore, 350 mm nominal stroke, 75 mm adjustment range, PT port threads, and the desired mounting bracket from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this adjustable series. If the machine needs to hold a load in place without continuous air pressure, this cylinder will not suffice; consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead.
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 SAIJ200AX350-75 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At its maximum operating pressure of 1.0 MPa, it delivers 3204 kgf of thrust.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 350 mm down to 275 mm. This creates a 75 mm adjustable window for fine-tuning the end position at commissioning, but it does not lock or hold the load without live air pressure.
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