Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-50
The AirTAC SAIJ200X650-50 is a double-acting, single-rod ISO 15552 profile cylinder engineered for high-force tasks, delivering 15708N of push thrust at 0.5MPa. It features a rear-mounted adjusting screw that allows you to dial back the 650mm nominal stroke by up to 50mm, creating a precise 600-650mm usable travel window. This built-in adjuster enables fine end-position tuning at commissioning without swapping the cylinder or adding external stops.
Built with a SUS420J2 stainless steel rod and PT tapered port threads, this 200mm bore unit operates at speeds of 30-500mm/s. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. The rear stopper acts solely as a travel limiter and deceleration aid, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 650 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 SAIJ200AX650-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×650 | 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 SAIJ200AX650-50 Is Used
Heavy Press Tuning
Dial in the exact 600-650mm end-stop for large stamping presses, absorbing heavy shock loads while maintaining precise bottom-dead-center positioning.
Line Changeovers
Quickly reconfigure the stroke window during product size transitions on automated assembly lines without replacing the cylinder or adding external stopper blocks.
Large Mold Handling
Position heavy industrial molds and tooling with 15708N of push force at 0.5MPa, using the rear screw to safely trim the travel distance during setup.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-50 the Right Cylinder?
Choose this 200mm bore cylinder when 160mm bore units (providing 10053N push at 0.5MPa) lack the necessary force for heavy presses or large material handling. The 50mm adjustment range is ideal for product-size changeovers on a line, letting operators reset the end-stop quickly without mechanical modifications. Because the 650mm stroke exceeds 300mm, the 40mm rod diameter and M36x2 thread still require an external guide to prevent excessive side-loading on the long unsupported piston rod.
For load-holding requirements without live air, remember that neither the rear adjuster nor the variable air cushions at both ends function as a lock or brake. You must integrate an external rod lock, a pilot-operated check valve, or switch to an AirTAC SAIL or BSAI clamp-lock cylinder. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses a PT tapered port configuration.
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 SAIJ200AX650-50 FAQ
At 0.5MPa operating pressure, the 200mm bore generates 15708N of push thrust and 15080N of pull thrust. At the maximum 1.0MPa operating pressure, it delivers up to 3204 kgf.
A rear-mounted screw stopper lets you shorten the 650mm nominal stroke by up to 50mm, providing a usable travel window of 600-650mm. This allows rapid end-position tuning during machine commissioning or product changeovers without replacing the cylinder.
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