Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-20
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X550-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 550mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-20
The AirTAC SAIJ200X550-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. The built-in stopper allows you to fine-tune the usable travel window between 530 and 550mm without adding external physical stops.
This large-bore actuator uses a G3/4 port and a robust 40mm carbon steel rod with an M36x2 thread. Unlike a fixed-stroke SAI, this rear screw lets you dial in the exact retract end-position during heavy machinery commissioning. The adjuster acts purely as a travel stop, so it will not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 550 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×550 | 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 SAIJ200X550-20 Is Used
Heavy Press Tuning
Dial in the exact 530-550mm retract position during heavy press commissioning to compensate for fixture height variations.
Large Mold Changeover
Quickly adjust the end-stop for different large mold sizes on a production line without physically swapping the cylinder.
Variable End Positioning
Fine-tune the retract travel limit on heavy-duty material handling equipment to accommodate varying product widths.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-20 the Right Cylinder?
The 20mm adjustable range is ideal for setting precise retract end-stops during machine setup or compensating for mechanical variance. If your process needs to hold the load statically without continuous air pressure, select an SAIL or BSAI lock variant instead, as the SAIJ adjuster is only a stop.
Because the 550mm stroke is long, the 40mm rod and M36x2 thread still require an external guide to handle side loads. This SAIJ model is dimensionally interchangeable per ISO 15552 standards. To match this exact replacement, specify a 200mm bore, 550mm stroke, 20mm adjustment range, PT port thread, no magnet, and a mounting choice from the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2.
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 SAIJ200X550-20 FAQ
It uses a G3/4 port and operates at speeds between 30 and 500 mm/s.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 550mm down to 530mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC SAI Cylinders
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