Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50
The AirTAC SAIJ200X75-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. It yields 15708N push and 15080N pull at 0.5 MPa. The integrated -50 adjustment code allows you to trim the nominal 75mm stroke back by up to 50mm, creating a precise 25-75mm usable travel window for exact end-position tuning.
This unit features a robust 40mm piston rod with an M36x2 thread, engineered to withstand significant side loads. Built with an SUS420J2 stainless steel rod (code A) and PT tapered ports, it incorporates variable air cushions at both ends to decelerate high-mass loads smoothly. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAIJ200AX75-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SAIJ200AX75-50 Is Used
Heavy Press Tuning
Dial in the exact 25-75mm end-stop during heavy press commissioning to accommodate varying material thicknesses without mechanical rebuilds.
Product Changeover
Quickly adjust the stroke length on a high-force assembly line when switching between product sizes, utilizing the 50mm trim range.
Position Calibration
Fine-tune the retraction end-point on large tooling fixtures to achieve precise alignment, leveraging the rear stopper screw for exact calibration.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50 the Right Cylinder?
Select this 200mm bore cylinder when your application requires extreme force that smaller bores cannot provide, such as shifting from a 160mm bore that offers 10053N push at 0.5 MPa. The adjustable stroke is highly beneficial during machine commissioning or product changeovers, allowing you to dial in the 25-75mm travel window without swapping cylinders or adding external stops. Remember that the rear adjuster functions only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder.
Because the 75mm stroke is relatively short for this large bore, external side-load guides are less critical here than with longer strokes, but the heavy 40mm rod still handles substantial offset loads. For an exact ISO 15552 replacement match, verify the 200mm bore, 75mm stroke, 50mm adjustment, PT port threads, and your required mounting style from the available SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Note that FB, CA, CB, and CR mounts are omitted from this series.
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 SAIJ200AX75-50 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the nominal 75mm stroke by up to 50mm, creating a usable travel window of 25-75mm. This stopper sets the end position but does not lock the load without continuous air pressure.
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