Airtac SAIJ200 Adjustable Cylinder SAIJ200AX165-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX165-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 165mm 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
- Stroke165 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX165-40
The AirTAC SAIJ200X165-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 165 mm nominal stroke by up to 40 mm. This creates a precise 125-165 mm usable travel window, allowing you to fine-tune the retract end position at commissioning without swapping out the cylinder or adding external stops. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa.
Built with an SUS420J2 stainless steel rod (option A) and PT tapered port threads, this 200 mm bore unit handles rigorous heavy-duty cycles. The extruded aluminum barrel features sensor grooves on both sides for flexible mounting of CMSE or DMSE switches, though this specific SKU is configured without a magnet. The rear adjuster acts purely as a travel stop for end-position tuning, meaning it will not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX165-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX165-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 165 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 SAIJ200AX165-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×165 | 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 SAIJ200AX165-40 Is Used
Heavy Machinery Setup
Dial in the 125-165 mm travel window during heavy press commissioning to perfectly time the retract stroke without machining new hard stops.
Product Size Changeovers
Quickly adapt automated heavy-duty clamps on a production line by turning the rear adjuster up to 40 mm to accommodate different workpiece sizes.
Large Assembly Positioning
Leverage the 15708 N push force to seat massive components, using the adjustable end-stop to fine-tune the final resting position with high repeatability.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX165-40 the Right Cylinder?
Selecting this 200 mm bore cylinder makes sense when your application requires extreme force, such as 15708 N push at 0.5 MPa, alongside variable end-stops for product changeovers. If your setup only requires moderate thrust, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which might better suit lighter machinery. Conversely, if you need true load-holding without continuous live air pressure, a plain SAIJ will not suffice; you should look toward the SAIL (air-released lock) or BSAI (clamp-lock) variants instead.
For an exact ISO 15552 replacement, match the 200 mm bore, 165 mm stroke, 40 mm adjustment range, PT port threads, and your desired mounting bracket from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Note that FB, CA, CB, and CR mounts are omitted from this adjustable series. Because the nominal stroke is 165 mm, side-load stress is manageable, but always ensure the 40 mm rod diameter and M36x2 rod thread are adequately supported by external guides to prevent premature seal wear.
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 SAIJ200AX165-40 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf of push force.
The rear adjuster screw allows you to shorten the 165 mm nominal stroke by up to 40 mm, creating a usable travel window of 125-165 mm. This stopper fine-tunes the retract end position but does not lock the load without continuous air pressure.
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