Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 65mm 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
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-50
The AirTAC SAIJ200X65-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. Its 65mm nominal stroke can be dialed back by up to 50mm, creating a highly versatile 15-65mm usable travel window for precise end-position tuning during commissioning. This eliminates the need to swap physical cylinders when adapting to slightly different product sizes.
Built with a SUS420J2 stainless steel rod for enhanced durability against moisture, this 200mm bore unit features PT tapered ports and operates at speeds of 30-500mm/s. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting, while the rear adjustment screw acts purely as a travel stop and must not be confused with a locking mechanism.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 65 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 SAIJ200AX65-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×65 | 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 SAIJ200AX65-50 Is Used
Heavy Press Changeover
Ideal for heavy pressing lines where the 15-65mm adjustable window allows operators to dial in the exact crush depth on varying product sizes without changing tooling.
Precision End-Stop Tuning
Perfect for heavy-duty indexing stations that need precise rear end-position calibration during initial machine commissioning to prevent mechanical interference.
Variable Forming Stops
Provides a flexible travel limit for large-scale metal forming operations, allowing the 50mm adjustment range to accommodate different material thicknesses on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-50 the Right Cylinder?
Choose this 200mm bore cylinder when extreme force is required, stepping up from a 160mm bore that provides 10053N of push force at 0.5 MPa. The adjustable stroke is ideal for applications needing variable end-stops or frequent machine changeovers, providing fine-tuning that a fixed-stroke SAI cylinder cannot offer. To match this exact ISO 15552 interchangeable footprint, specify the 200mm bore, 65mm stroke, 50mm adjustment, PT ports, and your required mounting style.
Because the 65mm stroke is relatively short for this massive bore, side-loading is less of a concern than with long strokes, but external guides are still recommended to prevent rod binding under heavy loads. Remember that the rear adjuster only sets the travel end; for load-holding without live air pressure, you must integrate an external rod lock or pilot-operated check valve, or select a SAIL or BSAI cylinder.
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 SAIJ200AX65-50 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. It can reach a maximum push force of 21991N at 0.7 MPa.
The rear adjuster screw allows you to shorten the 65mm nominal stroke by up to 50mm, creating a usable travel window of 15 to 65mm. This stopper fine-tunes the end position but does not hold the load without continuous air pressure.
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