Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20S
The AirTAC SAIJ200X115-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 115 mm travel by up to 20 mm, creating a precise 95-115 mm usable end-position window. Delivering 15708 N of push force at 0.5 MPa and capable of operating up to 1.0 MPa, this massive 200 mm bore actuator tackles heavy-duty positioning tasks. It includes a -S magnet for position sensing and uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance.
Instead of machining custom external stops or swapping out the entire actuator when product dimensions change, the integrated rear adjusting screw lets you fine-tune the retract end-position on the fly. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic sensors. Remember that the rear adjuster functions purely as a mechanical travel stop to set deceleration, not as a locking device; the cylinder cannot hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 115 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 SAIJ200AX115-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×115 | 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 SAIJ200AX115-20S Is Used
Product Changeover Adjustment
Quickly dial back the retract position by up to 20 mm when switching to a shorter product format on the line, eliminating the need for physical spacer changes.
Heavy Pressing End-Stop Tuning
Leverage 15708 N of thrust at 0.5 MPa for pressing operations while fine-tuning the final 95-115 mm travel window to hit exact material thicknesses.
Commissioning Calibration
Use the rear adjusting screw during initial machine setup to perfectly set the deceleration point and end-position without swapping out actuators.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20S the Right Cylinder?
Select this 200 mm bore model when your application requires substantial thrust—15708 N push at 0.5 MPa—within a compact 115 mm stroke. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, whereas staying with the 200 mm bore provides a maximum thrust of 3204 kgf at 1.0 MPa. The adjustable -20 mm stroke is specifically beneficial during machine commissioning or product changeovers, allowing you to shift the end-stop from 115 mm back to 95 mm without replacing the cylinder.
When specifying a replacement for an ISO 15552 cylinder, match the 200 mm bore, 115 mm stroke, PT tapered port threads, and the -S magnet option. Mounting options for this SAIJ series include Basic, FA, LB, TC, FTC, TCM1, and TCM2 (note that FB, CA, CB, and CR mounts are omitted). Although 115 mm is a short stroke, the 40 mm rod diameter and M36x2 thread handle high side loads well; for longer unsupported strokes, always use an external guide. If your process requires the load to be held mechanically without continuous air pressure, consider the SAIL or BSAI series 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 SAIJ200AX115-20S FAQ
The rear adjusting screw acts as a mechanical stopper that can shorten the effective stroke by up to 20 mm. For this model, it creates a usable travel window between 95 and 115 mm, allowing you to set the exact retract end-position without replacing the cylinder.
At a 0.5 MPa operating pressure, the SAIJ200X115-20-S provides 15708 N of push force and 15080 N of pull force. At the maximum rated pressure of 1.0 MPa, it delivers a maximum push force of 3204 kgf.
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