Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30
The AirTAC SAIJ200X50-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down to a 20-50 mm window from the 50 mm nominal stroke. Built with a robust 40 mm piston rod and SUS420J2 stainless steel rod material, it handles high side-load stresses far better than smaller bores. In the 200 mm bore class, it generates a massive 15708 N of push force and 15080 N of pull force at 0.5 MPa, making it ideal for heavy-duty pressing and holding tasks.
This model uses PT tapered port threads (G3/4) and includes variable air cushions at both ends to absorb kinetic energy. The extruded aluminum barrel features sensor grooves on both sides, allowing direct mounting of CMSE reed and DMSE electronic solid-state switches if position feedback is later required. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning without adding external stops.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 50 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 SAIJ200AX50-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SAIJ200AX50-30 Is Used
Heavy Pressing
Delivers up to 15708 N of thrust at 0.5 MPa for heavy assembly operations, with the 30 mm adjustment window allowing precise bottoming-out tuning.
Machine Changeover
Dial in the retract end-stop from 50 mm down to 20 mm during product size transitions without swapping out the entire actuator.
Heavy-Duty Ejection
Uses the 40 mm SUS420J2 stainless steel rod to absorb high side-loads while ejecting heavy parts, fine-tuned via the rear stopper screw.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires extreme force, such as 15708 N of push at 0.5 MPa, which dwarfs the 10053 N output of the neighbouring 160 mm bore. The adjustable stroke is selected when you need precise end-position tuning at machine setup or during product changeover, avoiding the need to physically swap the cylinder for slightly different travel lengths. For strokes of 50 mm, the rigid 40 mm rod naturally resists deflection, but always ensure external guides support the load if significant lateral forces are present.
To replace an ISO 15552 cylinder, match the 200 mm bore, 50 mm nominal stroke, 30 mm adjustment range, PT G3/4 ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2, omitting FB, CA, CB, CR). Note that the rear adjuster and air cushions only decelerate the load; they do not hold it without live air. For true fail-safe load holding, use an external pilot-operated check valve or an AirTAC BSAI clamp-lock 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 SAIJ200AX50-30 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 can deliver up to 3204 kgf.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 30 mm. This creates a usable travel window of 20 to 50 mm, enabling fine-tuning of the end position without swapping the cylinder.
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