Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 475mm 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
- Stroke475 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-75S
The AirTAC SAIJ200X475-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing an adjustable travel window of 400 to 475 mm from its 475 mm nominal stroke. As the largest standard bore, it generates 21991 N of push force at 0.7 MPa, making it suitable for heavy-duty positioning tasks. The integrated -S magnet enables position feedback via CMSE reed or DMSE solid-state switches fitted into the dual-side sensor grooves.
This model features a SUS420J2 stainless steel piston rod (material code A) paired with an M36x2 thread, offering high side-load resilience on long travels. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end-position during commissioning without adding external stops; it is not a locking mechanism and requires live air to hold a load.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 475 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 SAIJ200AX475-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×475 | 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 SAIJ200AX475-75S Is Used
Heavy Press Tuning
Dial in the exact 400-475 mm travel window during heavy press commissioning to accommodate varying material thicknesses without repositioning the cylinder.
Pallet Positioning
Adjust the retract stop on the fly to handle different pallet sizes on a high-thrust conveyor line, ensuring precise alignment without swapping actuators.
Machine Changeover
Rapidly reset the end-of-stroke position during production line changeovers, using the rear screw to fine-tune the 475 mm travel for new product dimensions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-75S the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when 21991 N of thrust at 0.7 MPa is required alongside variable end-position tuning, stepping up significantly from the 160 mm bore which provides 14074 N. The PT tapered port threads ensure a tight metal-to-metal seal on this high-flow actuator. Because the 475 mm stroke exceeds 300 mm, an external guide rail is strongly recommended to prevent excessive side-loading on the rod.
The adjustable stroke is ideal for product changeovers where exact end-stops vary, replacing the fixed stroke of a standard SAI cylinder. For applications needing true fail-safe load holding without live air pressure, specify an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead, as the SAIJ adjuster only decelerates and sets the travel end.
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 SAIJ200AX475-75S FAQ
At an operating pressure of 0.7 MPa, this 200 mm bore cylinder generates 21991 N of push force and 15080 N of pull force. It can deliver up to 3204 kgf at the maximum 1.0 MPa pressure.
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm, creating a usable travel window of 400 to 475 mm. This mechanical stop fine-tunes the retract position but does not lock the load without live air pressure.
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