Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20 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 SAIJ200AX140-20
The AirTAC SAIJ200X140-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. Its integrated 20mm adjustment screw creates a usable travel window between 120 and 140mm, allowing precise end-position tuning without swapping out the entire unit. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions while avoiding tie-rod construction.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and utilizes PT tapered port threads. It supports a operating speed of 30-500 mm/s and includes variable air cushions at both ends to manage heavy kinetic energy. The rear stopper mechanism solely trims the travel distance and does not function as a load lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20 |
|---|---|
| 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 SAIJ200AX140-20
| 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 SAIJ200AX140-20 Is Used
Heavy Press Tuning
Dial in the exact 120-140mm end position during machine commissioning to accommodate different material thicknesses without adding external stopper blocks.
Product Changeover
Quickly adjust the stroke length by up to 20mm on the rear screw to handle varying product sizes on the line, minimizing downtime between runs.
High-Force Positioning
Leverage the 15708N push force to move heavy pallets or fixtures, using the built-in adjustment to fine-tune the resting position safely.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20 the Right Cylinder?
Selecting this 200mm bore model provides a pull force of 15080N at 0.5 MPa, stepping up significantly from a 160mm bore which yields 9425N under the same pressure. The adjustable 120-140mm window is ideal for applications requiring variable end stops during product changeovers, negating the need for external mechanical stops. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Because the stroke is 140mm, side-load risks are moderate, but the robust 40mm rod and M36x2 thread help manage bending stress. If true load-holding is required without live air pressure, a standard SAIJ is insufficient as the adjuster is only a stop; consider an external pilot-operated check valve or the SAIL locking cylinder instead. This non-magnet version lacks internal sensing; adding a -S magnet enables CMSE reed and DMSE electronic switches.
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 SAIJ200AX140-20 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At the maximum pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop that trims the effective travel. For this 140mm nominal stroke cylinder, you can reduce the stroke by up to 20mm, creating an adjustable travel window between 120mm and 140mm.
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