Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40 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 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 SAIJ200AX550-40
The AirTAC SAIJ200X550-40 is a double-acting profile cylinder with a rear stroke adjuster, dimensionally interchangeable per ISO 15552. It features a SUS420J2 stainless steel rod and PT tapered ports. The 40mm adjustment code creates a usable travel window of 510 to 550mm, allowing you to dial back the nominal stroke without adding external stops. It delivers 15708N of push force at 0.5 MPa and 15080N of pull force.
This massive 200mm bore achieves a maximum thrust of 3204 kgf at 1.0 MPa. The rear adjuster acts strictly as a travel stop for end-position tuning; it does not hold the load without live air. For position holding without pressure, use an external rod lock or pilot-operated check valve. The extruded aluminum barrel includes dual sensor grooves, and with no -S magnet specified, electronic DMSE or reed CMSE sensors cannot be used.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40 |
|---|---|
| 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 | 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 SAIJ200AX550-40
| 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 SAIJ200AX550-40 Is Used
Heavy Press Fine-Tuning
Dial in the exact 510-550mm end-position during heavy press commissioning without machining new hard stops.
Product Size Changeover
Quickly adjust the retract distance on automated lines when product dimensions change, saving setup time.
High-Force Positioning
Leverage 15708N of push force at 0.5 MPa to move heavy pallets or molds while trimming the stroke up to 40mm.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX550-40 the Right Cylinder?
Select this 200mm bore when an application requires extreme thrust—stepping down to a 160mm bore yields 10053N push at 0.5 MPa, whereas this 200mm bore provides 15708N. The adjustable 510-550mm window is ideal for machine setup and product changeover, letting you fine-tune the retract position at commissioning rather than swapping a fixed-stroke SAI cylinder. To match this ISO 15552 replacement exactly, specify: 200mm bore, 550mm stroke, 40mm adjust, PT ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and no magnet.
Because the stroke is 550mm, the M36x2 rod and long unsupported travel require an external guide to prevent excessive side loading. The rear stopper only sets the travel end and must never be treated as a lock or brake for holding loads.
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 SAIJ200AX550-40 FAQ
At 0.5 MPa operating pressure, it provides 15708N of push force and 15080N of pull force. At the maximum 1.0 MPa, it delivers up to 3204 kgf.
The rear adjuster screw lets you trim the effective travel back by up to 40mm, creating a 510 to 550mm usable window. It acts as a mechanical stop for end-position tuning and does not lock the load without live air.
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