Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-50S 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 SAIJ200AX900-50S
The AirTAC SAIJ200X900-50-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications. It features a rear mechanical stopper that allows you to fine-tune the effective travel down from the 900 mm nominal stroke, providing a usable adjustment window of 850-900 mm. Delivering a massive 28274N of push force at 0.9 MPa, it handles substantial payloads with precision. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant includes a magnet for position feedback.
This model uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance compared to standard carbon steel. Equipped with PT tapered port threads (G3/4) and dual-side variable air cushions, it safely decelerates heavy masses. The rear adjuster acts solely as a travel stop to set the end position; it is not a lock and will not hold the load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-50S |
|---|---|
| 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 SAIJ200AX900-50S
| 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 SAIJ200AX900-50S Is Used
Heavy Pressing Operations
Provides up to 28274N of thrust for high-force pressing, forming, and riveting tasks that require precise end-position tuning.
Product Changeover Setup
The 50 mm rear adjuster allows operators to dial back the 900 mm stroke to 850 mm during line changeovers without changing mounting hardware.
Large Assembly Automation
Drives heavy structural components or large pallets over long distances, utilizing the dual air cushions to safely stop massive moving weights.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX900-50S the Right Cylinder?
Select this 200 mm bore cylinder when your machinery requires extreme thrust that smaller bores cannot provide, such as pressing or heavy lifting tasks. If 28274N at 0.9 MPa is excessive for your application, stepping down to a 160 mm bore yields 18095N of push force, offering a more compact and efficient alternative. The adjustable 850-900 mm stroke is ideal for product changeovers, allowing you to shorten the end position by up to 50 mm without swapping the cylinder or adding external stops.
Because the 900 mm stroke creates a long lever arm, an external guide is strongly recommended to prevent side-loading damage to the rod and front cap. For load-holding without continuous air pressure, this plain SAIJ cylinder is insufficient; you must integrate an external pilot-operated check valve or select an AirTAC SAIL or BSAI series cylinder. This unit is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: 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 SAIJ200AX900-50S FAQ
At 0.9 MPa operating pressure, this 200 mm bore cylinder provides 28274N of push force and 15080N of pull force. It can deliver a maximum of 3204 kgf at 1.0 MPa.
The rear mechanical stopper allows you to shorten the effective travel from the 900 mm nominal stroke down to 850 mm. This provides a 50 mm tuning window for fine-tuning the retract end position during commissioning, but it acts only as a stop and does not lock the load without live air.
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