Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-50
The AirTAC SAIJ200X50-50 is a double-acting ISO 15552 profile cylinder featuring a robust 200 mm bore and a rear-mounted stroke adjuster. Equipped with a SUS420J2 stainless steel rod, it delivers substantial thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa. The external stopper allows you to fine-tune the nominal 50 mm stroke down to a 0 mm effective travel window, providing exact end-position control without adding external stops.
This heavy-duty actuator uses PT tapered G3/4 ports and operates at speeds between 30 and 500 mm/s. It features an extruded aluminum barrel with sensor grooves on both sides, ready for CMSE reed or DMSE electronic sensors if needed later. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets to streamline heavy-installation options.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 50 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 SAIJ200AX50-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SAIJ200AX50-50 Is Used
Heavy Pressing Operations
Dial in the exact 0-50 mm retraction stop for heavy pressing tasks, ensuring precise force application without over-traveling during machine setup.
Product Changeovers
Adjust the effective stroke rapidly when switching product sizes on a line, avoiding the need to physically swap out cylinders or rework mounting plates.
End-Position Tuning
Fine-tune the final end-position at commissioning using the rear screw, compensating for mechanical tolerances without adding bulky external stoppers.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-50 the Right Cylinder?
Choose this 200 mm bore when your application demands maximum thrust, such as 15708 N push at 0.5 MPa, and requires on-the-fly end-position tuning during commissioning. If you need slightly less force, stepping down to a 160 mm bore yields 10053 N of push force at the same pressure, but the 200 mm class is unmatched for heavy loads. The adjustable 0-50 mm travel window is ideal for product changeovers where the exact retraction point varies, saving you from swapping out a fixed-stroke SAI cylinder.
Because the 50 mm stroke is well below the 300 mm threshold, side-load risks are minimal, though the 40 mm rod and M36x2 thread provide excellent rigidity. Remember that the rear adjuster acts only as a travel stop and cannot hold the load without live air pressure; for true pneumatic locking without continuous air, consider the SAIL or BSAI series. This cylinder is dimensionally interchangeable per ISO 15552, requiring a 200 mm bore, 50 mm stroke, 50 mm adjustment, PT G3/4 ports, and standard mounting.
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 SAIJ200AX50-50 FAQ
It provides a push force of 15708 N and a pull force of 15080 N at 0.5 MPa, with a maximum speed range of 30-500 mm/s.
The rear adjuster acts as a stopper that lets you trim the nominal 50 mm stroke down to a 0 mm effective travel window. It only sets the travel end and does not lock or hold the load without live air pressure.
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