Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X550-40 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 SAIJ200X550-40
The AirTAC SAIJ200X550-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 28274N at 0.9 MPa. It features a robust 40mm carbon steel piston rod with an M36x2 thread and operates at speeds of 30-500 mm/s. This made-to-order 550mm stroke unit provides a usable travel window of 510 to 550mm, allowing you to dial back the retract position by up to 40mm during commissioning.
Instead of swapping hardware or adding external stops when product sizes change, you simply turn the rear adjusting screw to fine-tune the end position. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches, though this specific SKU omits the magnet option. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40 |
|---|---|
| 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 SAIJ200X550-40
| 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 SAIJ200X550-40 Is Used
Heavy Press Changeover
Adjust the 40mm retract window on the fly to accommodate varying material thicknesses in large-scale metal forming presses without replacing the cylinder.
Variable End-Stop Positioning
Fine-tune the 510 to 550mm travel limit during machine commissioning to perfectly index heavy automotive components on a conveyor line.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X550-40 the Right Cylinder?
The SAIJ200X550-40 is selected specifically for its 510-550mm adjustable travel window, making it ideal for variable end-stop positioning without swapping out a fixed-stroke SAI cylinder.
Because this unit features a 550mm stroke, the long unsupported rod travel necessitates an external guide to prevent excessive side-loading and premature wear. Furthermore, the rear adjuster and built-in air cushions only manage deceleration; they do not function as a lock. For fail-safe load holding without live air, consider an external rod lock or pilot-operated check valve. This cylinder is dimensionally interchangeable per ISO 15552 and uses a PT tapered port, with mounting options limited to 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 SAIJ200X550-40 FAQ
The rear adjuster screw lets you shorten the nominal 550mm stroke by up to 40mm, creating a usable travel window of 510 to 550mm. This allows precise end-position tuning during commissioning without adding external stops, though the adjuster acts only as a stop and does not lock the load.
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