Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-40S
The AirTAC SAIJ200X145-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 145 mm stroke that can be fine-tuned backward by up to 40 mm, yielding a usable travel window of 105 to 145 mm. Delivering massive thrust, it provides 15708 N push and 15080 N pull at 0.5 MPa, scaling up to 3204 kgf at 1.0 MPa.
This unit features a SUS420J2 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. Unlike a fixed-stroke SAI, the external rear stopper lets you dial in the exact end position during commissioning without adding external stops. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 145 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 SAIJ200AX145-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×145 | 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 SAIJ200AX145-40S Is Used
Heavy Machinery Changeover
Ideal for heavy manufacturing lines where the 40 mm adjustable window allows operators to quickly reset the retract end position for different product sizes without swapping out the entire cylinder.
Press End-Position Tuning
The 105-145 mm travel range provides fine-tuning for large pneumatic presses, ensuring the SUS420J2 rod contacts the workpiece accurately during commissioning.
Automated Assembly Stops
Use the rear stopper to dial in the exact retract position for large automated assembly stations, leveraging the 3204 kgf max force to move substantial loads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-40S the Right Cylinder?
Selecting this 200 mm bore is ideal when your application requires extreme force, as stepping down to a 160 mm bore drops the 0.5 MPa push force to 10053 N. The 40 mm adjustment range is perfect for product-size changeovers on a line, allowing you to reposition the end stop rapidly. For exact ISO 15552 interchangeability, match the 200 mm bore, 145 mm stroke, 40 mm adjustment, PT tapered ports, and the -S magnet requirement.
Because the nominal stroke is 145 mm, an external guide is not strictly mandated for side loads, but the 40 mm diameter rod and M36x2 thread handle high bending stresses well. If you need true load-holding without continuous air pressure, this cylinder will not suffice; look to an SAIL air-released lock or BSAI clamp-lock instead. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ200AX145-40S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it delivers 3204 kgf.
The rear adjuster screw allows you to shorten the 145 mm nominal stroke by up to 40 mm, giving an effective travel window of 105 to 145 mm. This stopper only sets the end position; it does not lock the load without live air pressure.
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