Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40S
The AirTAC SAIJ200X900-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 860 to 900 mm. Featuring a robust 40 mm piston rod and PT tapered port threads, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa. The integrated -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE electronic solid-state sensors.
This 200 mm bore actuator utilizes a SUS420J2 stainless steel rod for enhanced corrosion resistance and carries a 50 mm adjustable air cushion at both ends to manage heavy kinetic energy. The external rear stopper allows mechanics to dial in the exact retract position during commissioning without adding external physical stops or swapping the cylinder.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 900 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 SAIJ200AX900-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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 SAIJ200AX900-40S Is Used
Heavy Press Positioning
Fine-tune the 860-900 mm travel window during heavy press setup to accommodate varying material thicknesses without re-engineering the machine frame.
Large Pallet Diverter
Adjusts the retract stopper on the fly to handle different pallet sizes on a conveyor line, ensuring positive physical placement during product changeover.
Automated Assembly Staging
Dials in the exact end-of-stroke position for large assembly jigs, using the 50 mm air cushions to safely decelerate massive 2805 N dynamic loads at 0.7 MPa.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-40S the Right Cylinder?
Selecting this 200 mm bore actuator makes sense when your application requires the maximum standard thrust class, as stepping down to a 160 mm bore drops your 0.5 MPa push force to 10053 N. The 40 mm adjustment range is ideal for fine-tuning end positions during machine setup or product changeover, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Because the 900 mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-load wear on the 40 mm rod and seals.
For drop-in replacement, match the 200 mm bore, 900 mm stroke, PT tapered ports, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Remember that the rear adjuster is a travel stop, not a locking device; this cylinder will not hold a load without live air pressure, so consider an AirTAC SAIL or BSAI series for pneumatic locking requirements.
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 SAIJ200AX900-40S FAQ
At a 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 acts as an external mechanical stop that allows you to shorten the effective stroke by up to 40 mm, creating an 860 to 900 mm usable travel window. It sets the retract end position but does not lock the load without continuous air pressure.
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