Airtac SAIJ200 Adjustable Cylinder SAIJ200AX750-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX750-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 750mm 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
- Stroke750 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX750-40
The AirTAC SAIJ200X750-40 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster, allowing you to fine-tune the end position during commissioning. It provides a usable travel window of 710 to 750 mm, letting you trim up to 40 mm of retraction without swapping out the physical unit. Built to deliver massive thrust, it generates 21991 N of push force at 0.7 MPa and reaches a maximum of 3204 kgf at 1.0 MPa.
This 200 mm bore unit features a robust 40 mm SUS420J2 stainless steel rod with an M36x2 thread, paired with PT (tapered) G3/4 ports. The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration ships without a magnet. The rear adjuster acts purely as a travel stop to set deceleration endpoints, meaning it will not hold a load safely without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX750-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX750-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 750 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 SAIJ200AX750-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×750 | 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 SAIJ200AX750-40 Is Used
Heavy Press Fine-Tuning
Dial in the exact 710-750 mm end-position on a large metal stamping press during setup, ensuring perfect contact without physically swapping the massive cylinder.
Product Changeover Lines
Adjust the retract stop by up to 40 mm to instantly accommodate different pallet or package sizes on a heavy-duty conveyor handling system.
Large Assembly Jigs
Set precise deceleration endpoints for heavy automotive component assembly jigs, relying on the 40 mm SUS420J2 rod to handle substantial loads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX750-40 the Right Cylinder?
Choosing this 200 mm bore cylinder makes sense when your application requires extreme push force, stepping up heavily from the 160 mm bore variant which provides 14074 N at 0.7 MPa. You would specifically select the SAIJ adjustable-stroke variant over a fixed SAI model when you need variable end-stops to accommodate product size changeovers on a line without adding external physical stops.
When matching this for an ISO 15552 replacement, verify the 750 mm stroke, the 40 mm adjustment range, PT G3/4 porting, and your required mounting bracket from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is 750 mm, the long unsupported travel demands an external guide to prevent rod side-loading and premature wear. For any load-holding requirements without continuous air pressure, integrate an external pilot-operated check valve or look to the BSAI clamp-lock 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 SAIJ200AX750-40 FAQ
It features a rear adjusting screw that lets you shorten the nominal 750 mm stroke by up to 40 mm, giving an effective travel window of 710 to 750 mm. The adjuster acts as a mechanical stop to set the end position and does not function as a lock to hold the load without live air.
At the maximum operating pressure of 1.0 MPa, the SAIJ200X750-40 delivers a maximum push force of 3204 kgf. At a standard 0.7 MPa, it provides 21991 N of push force.
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