Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-75
The AirTAC SAIJ200X145-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that creates a 70 to 145 mm usable travel window. Delivering 15708 N of push force at 0.5 MPa, it handles heavy-duty positioning with precision. The extruded aluminum barrel includes sensor grooves on both sides, though this configuration omits the magnet, so external sensing is required.
This unit uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and carries a robust M36x2 rod thread. Fluid must be filtered air at 40 um, operating between 0.15 and 1.0 MPa. The rear stopper screw allows you to fine-tune the retract end position during commissioning without adding external stops.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 145 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 SAIJ200AX145-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×145 | 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 SAIJ200AX145-75 Is Used
Heavy Assembly Positioning
Dial in the 70-145 mm travel window to seat large components accurately during heavy assembly operations.
Machine Changeover
Quickly adjust retract end stops to accommodate varying product sizes on a single production line without swapping cylinders.
End-Stop Calibration
Fine-tune the final end position at commissioning to eliminate mechanical hard stops and simplify machine setup.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-75 the Right Cylinder?
Choose this 200 mm bore when 15708 N of push force at 0.5 MPa is required, or step down to a 160 mm bore providing 10053 N if your load is lighter. An adjustable stroke is ideal for product changeovers where the exact end position varies, unlike a fixed-stroke SAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. Because the 145 mm stroke is under 300 mm, side-load risks are lower, but the heavy 40 mm rod still benefits from an external guide for optimal longevity.
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 SAIJ200AX145-75 FAQ
The rear adjuster allows you to trim the 145 mm nominal stroke back by up to 75 mm, creating a usable travel window of 70 to 145 mm to fine-tune the retract end position.
It provides 15708 N of push force and 15080 N of pull force at 0.5 MPa, reaching a maximum of 3204 kgf at 1.0 MPa.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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