Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-30S 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 SAIJ200AX550-30S
The AirTAC SAIJ200X550-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a massive 15708N push force and 15080N pull force at 0.5 MPa, equipped with a 40mm diameter SUS420J2 stainless steel rod for superior side-load resilience. The integrated -S magnet supports CMSE reed and DMSE electronic sensors for precise position feedback.
This model provides a usable travel window of 520-550mm, allowing you to trim the nominal 550mm stroke by up to 30mm during commissioning. You can fine-tune the retract end position without swapping cylinders or adding external stops. It uses G3/4 PT tapered ports and shares the standard SAI mounting interface, though the SAIJ series omits the FB, CA, CB, and CR mounting brackets.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-30S |
|---|---|
| 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 SAIJ200AX550-30S
| 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 SAIJ200AX550-30S Is Used
Heavy Machinery Setup
Fine-tune the 520-550mm retract end-stop during heavy equipment commissioning to dial in exact positioning without machining custom external stopper blocks.
Product Size Changeover
Quickly adapt automated presses to varying product heights by adjusting the stroke up to 30mm, ensuring rapid line changeovers and maintaining throughput.
High-Force Positioning
Leverage the 15708N push force at 0.5MPa for massive pressing or holding operations, using the rear stopper to precisely set the final end-position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-30S the Right Cylinder?
Selecting this 200mm bore cylinder is ideal when your application requires the highest thrust class—stepping down to a 160mm bore drops your 0.5 MPa push force to 10053N. The 30mm adjustable stroke is chosen over a fixed SAI cylinder when you need variable end-stops for product changeovers on the line. Remember that the rear adjuster acts only as a travel stop, not a lock; a plain SAIJ does not hold loads without live air, so for fail-safe load holding, consider an external rod lock or the AirTAC SAIL or BSAI series.
Because this cylinder features a 550mm stroke, which is well below the 1500mm maximum standard stroke for this bore, it is a stock-compatible configuration. However, at this travel length, the unsupported 40mm rod is subject to deflection under heavy loads, so an external guide rail is strongly recommended to prevent premature seal wear. The cylinder operates at 30-500mm/s and includes adjustable air cushions at both ends to decelerate the massive 3204kgf peak load at 1.0 MPa.
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 SAIJ200AX550-30S FAQ
At a 0.5 MPa operating pressure, this 200mm bore cylinder generates 15708N of push force and 15080N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 3204kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 30mm, providing a usable travel window of 520-550mm from the 550mm nominal stroke. This stopper decelerates and sets the end position but does not lock or hold the load without continuous air pressure.
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