Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-10S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-10S
The AirTAC SAIJ200X120-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 110-120 mm from its 120 mm nominal stroke. Delivering 15708 N of push force at 0.5 MPa, it handles heavy loads with precision. The rod is constructed from SUS420J2 stainless steel for enhanced durability, and the integrated magnet supports position sensing.
This model features a PT tapered port thread and a 40 mm rod diameter that helps manage side loading, though long unsupported strokes still require external guides. The rear adjuster acts purely as a mechanical stop to fine-tune end positions at commissioning without swapping cylinders. It is not a locking device, so load-holding without live air requires external valves or related types like SAIL or BSAI.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-10S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 120 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 SAIJ200AX120-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×120 | 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 SAIJ200AX120-10S Is Used
Heavy Pressing Operations
Dial in the exact 110-120 mm end-position for heavy pressing or forming tasks, ensuring precise contact without repositioning the entire fixture.
Product Changeover Adjustments
Quickly trim the stroke by up to 10 mm during product size changeovers on the line, reducing setup time and avoiding external stopper hardware.
Automated Assembly Stops
Use the rear stopper to set the exact retraction point for large automated assembly stations, fine-tuning the travel window during initial commissioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX120-10S the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires substantial thrust, such as 15708 N push at 0.5 MPa, and a 110-120 mm travel window. If you need less force, stepping down to a 160 mm bore yields 10053 N push at 0.5 MPa, while keeping the same 30-500 mm/s speed range. The adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers rather than relying on a fixed-stroke SAI cylinder.
For ISO 15552 replacement matching, verify the 200 mm bore, 120 mm stroke, 10 mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Since the stroke is under 300 mm, side-load risks are moderate, 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 SAIJ200AX120-10S FAQ
At an operating pressure of 0.5 MPa, this 200 mm bore cylinder provides 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 acts as a mechanical stop that lets you shorten the 120 mm nominal stroke by up to 10 mm, creating a 110-120 mm usable travel window. It only sets the travel end and does not lock the load without live air pressure.
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