Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-75S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-75S
The AirTAC SAIJ200X550-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 21991N at 0.7 MPa. Its defining feature is a 75mm adjustment range that lets you fine-tune the retract end position, creating a usable travel window between 475 and 550mm. This built-in adjustability allows for precise end-position tuning at commissioning without swapping the cylinder or adding external stops.
This model features a SUS420J2 stainless steel rod (option A) and a PT tapered port. It includes a magnet for position sensing, compatible with AirTAC CMSE reed and DMSE solid-state switches mounted in the dual-side sensor grooves. The rear adjuster acts strictly as a travel stop to decelerate the load, not as a lock, so live air is required to hold position.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-75S |
|---|---|
| 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 | 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 SAIJ200AX550-75S
| 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 SAIJ200AX550-75S Is Used
Heavy Press Fine-Tuning
Dial in the exact 475-550mm retract distance during heavy press commissioning without installing external mechanical stops.
Variable Product Changeover
Quickly adjust the end-of-stroke position on a production line when switching between large product sizes.
Heavy-Duty Conveyor Routing
Set precise routing positions for heavy materials, using the rear stopper to accommodate varying pallet dimensions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-75S the Right Cylinder?
Choose this 200mm bore when you need extreme force, as it provides 21991N of push force at 0.7 MPa. If your application requires less thrust, stepping down to a 160mm bore yields 14074N at the same pressure, which may be more efficient. The adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers.
Because this cylinder has a 550mm stroke, the long unsupported travel requires an external guide to prevent excessive side-loading on the rod. For load-holding without continuous air pressure, this cylinder is not a lock; consider the AirTAC SAIL or BSAI series instead. It is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ200AX550-75S FAQ
At 0.7 MPa, this 200mm bore cylinder generates 21991N of push force and 15080N of pull force. At the maximum operating pressure of 1.0 MPa, it provides up to 3204 kgf of push force.
The rear adjuster acts as a stopper that lets you shorten the effective stroke by up to 75mm, creating a usable travel window of 475 to 550mm. It sets the end position but does not lock the load without live air pressure.
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