Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 140mm 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
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75
The AirTAC SAIJ200X140-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 65 to 140 mm, allowing you to dial back the nominal stroke by up to 75 mm during machine setup. Delivering 15708 N of push force at 0.5 MPa, it is built for heavy-duty positioning tasks.
This model features a SUS420J2 stainless steel rod for enhanced durability against corrosive environments and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE or DMSE switches. The rear adjuster acts purely as a travel stop to set end positions and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 140 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 SAIJ200AX140-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×140 | 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 SAIJ200AX140-75 Is Used
Heavy Press Fine-Tuning
Dial in the exact end position of a 15708 N press cycle, trimming the stroke by up to 75 mm to accommodate varying material thicknesses without changing the cylinder.
Product Size Changeovers
Adjust the travel window from 65 to 140 mm on packaging lines to handle different product lengths rapidly during production transitions.
Large Assembly Positioning
Use the heavy 200 mm bore thrust and PT tapered ports to move heavy assemblies into place, setting precise retraction stops at commissioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-75 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires up to 15708 N of push force at 0.5 MPa, or up to 21991 N at 0.7 MPa. If your force requirements are lower, stepping down to a 160 mm bore provides 10053 N at 0.5 MPa, which may offer a more compact footprint. The adjustable stroke is ideal for product changeovers, letting you fine-tune the end position without swapping the cylinder or adding external stops.
For load-holding without continuous air pressure, note that the rear adjuster is a stop, not a lock; you would need an external rod lock or a related type like the SAIL or BSAI. This SAIJ model supports a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 140 mm stroke is relatively short for this large bore, standard side-load concerns are minimized, but an external guide is still recommended for heavy loads.
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 SAIJ200AX140-75 FAQ
At an operating pressure of 0.5 MPa, this 200 mm bore cylinder generates a push force of 15708 N and a pull force of 15080 N. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 140 mm down to 65 mm. This creates a 65-140 mm usable travel window for fine-tuning end positions without swapping the cylinder.
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