Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-20 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 SAIJ200AX475-20
The AirTAC SAIJ200X475-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 475 mm travel to a precise 455-475 mm window. It delivers massive thrust, pushing with 15708 N and pulling with 15080 N at 0.5 MPa. Built with a SUS420J2 stainless steel rod (option A) and a robust M36x2 rod thread, this unit handles heavy loads. It features a G3/4 PT tapered port and operates at speeds between 30-500 mm/s.
This adjustable-stroke design lets you fine-tune the retract end-position during commissioning or product changeover without swapping the cylinder or adding external stops. The rear adjuster acts purely as a travel stop and works alongside the 50 mm variable air cushions to decelerate the load. It is not a locking mechanism; for position holding without live air pressure, you would need a SAIL or BSAI variant. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet required for CMSE or DMSE electronic switches.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-20 |
|---|---|
| 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 SAIJ200AX475-20
| 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 SAIJ200AX475-20 Is Used
Heavy Machinery Changeover
Dial in the 455-475 mm retract position on large presses to accommodate different material thicknesses without replacing the actuator.
Large Fixture Tuning
Fine-tune the end-stop during initial setup to perfectly align heavy 200 mm bore tooling, absorbing mechanical tolerances on the fly.
Material Diverter
Adjust the stroke window on the fly to change the resting position of a heavy diverter arm for varying pallet sizes.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-20 the Right Cylinder?
Choose this 200 mm bore if your application requires up to 15708 N of push force at 0.5 MPa, or step down to the 160 mm bore if your load only demands 10053 N. The adjustable 455-475 mm travel is ideal when machinery requires variable end-stops for different product sizes, saving the cost of a fixed-stroke SAI cylinder. Because the stroke is 475 mm, the long unsupported rod requires an external guide to prevent excessive side-loading and premature seal wear.
This model is dimensionally interchangeable with ISO 15552 cylinders and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). The cylinder accepts PT tapered port threads and lacks the -S magnet option. Remember that the rear adjuster only sets the travel end-point; it cannot hold a load statically without continuous air pressure.
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 SAIJ200AX475-20 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 adjuster screw lets you shorten the 475 mm nominal stroke by up to 20 mm, creating a usable travel window of 455-475 mm. This stopper decelerates the load alongside the air cushion but does not lock the position without live air.
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