Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-100
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-100 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 SAIJ200AX550-100
The AirTAC SAIJ200X550-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, designed to deliver immense thrust for heavy-duty operations. By turning the external stopper screw, you can shorten the effective travel from its 550 mm nominal length down to a 450 mm minimum, creating a precise 450-550 mm usable window. This on-machine tuning capability eliminates the need to swap out the entire barrel or bolt on external stops when finalizing end positions during commissioning.
This massive 200 mm bore generates up to 28274 N of push force at 0.9 MPa and 15080 N of pull force at 0.5 MPa. The piston rod is constructed from SUS420J2 stainless steel, offering high durability and corrosion resistance for harsh environments. It features PT tapered port threads (G3/4) and variable air cushions at both ends to decelerate the heavy moving load, though it is important to note the adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-100 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-100 |
|---|---|
| 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 SAIJ200AX550-100
| 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 SAIJ200AX550-100 Is Used
Heavy Machinery Changeover
Adjust the 450-550 mm travel window during heavy equipment product changeovers to accommodate different large part dimensions without replacing the cylinder.
Large Assembly Pressing
Fine-tune the exact end-stop for heavy pressing applications requiring up to 28274 N of force, ensuring precise contact without external stopper blocks.
Long-Stroke Positioning
Dial in the retract end-position for large-scale automated positioning systems, leveraging the 100 mm adjustment range to perfect the 550 mm stroke setup.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-100 the Right Cylinder?
Selecting this 200 mm bore over a smaller neighbor, such as the 160 mm option that provides 18095 N of push force at 0.9 MPa, is necessary when your application demands over 28000 N of output. The 100 mm adjustment range is particularly valuable in large-scale machinery setups where product dimensions vary, allowing operators to dial in the exact 450-550 mm travel distance without changing the cylinder. Because the nominal stroke is 550 mm, which exceeds 300 mm, an external guide is strongly recommended to prevent excessive side-loading on the long, unsupported piston rod.
For ISO 15552 interchangeability, this unit matches a 200 mm bore, 550 mm stroke, with a 100 mm adjustment range, PT ports, and no magnet. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. If your machine requires true load-holding without continuous air pressure, this cylinder will not suffice; you should instead evaluate the AirTAC SAIL (pneumatic lock) or BSAI (clamp-lock) series, as the rear adjuster here is strictly a stop, not a brake.
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 SAIJ200AX550-100 FAQ
At 0.9 MPa, this 200 mm bore cylinder provides a push force of 28274 N and a pull force of 22680 N. The operating speed range for this large bore is 30-500 mm/s.
The rear adjuster acts as an external stopper screw that allows you to trim the effective travel back by up to 100 mm, creating a usable 450-550 mm stroke window. It sets the end position but does not lock the load without live air pressure.
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