Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 200mm 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
- Stroke200 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20
The AirTAC SAIJ200X200-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 21991N at 0.7 MPa. By turning the rear stopper screw, you can fine-tune the effective travel down from the 200mm nominal stroke, creating a precise 180-200mm usable window without swapping the barrel or adding external stops. The 40mm piston rod features a robust M36x2 thread, and the unit uses PT tapered port threads alongside a SUS420J2 stainless steel rod for enhanced durability.
This adjustable-stroke design is a profile cylinder, meaning it relies on an extruded aluminum barrel with sensor grooves on both sides rather than traditional tie-rods. The rear adjuster functions strictly as a travel stop to set the end position and works in tandem with the 50mm air cushions to decelerate the load; it does not lock or hold the load without live air pressure. For applications requiring true load-holding, consider the SAIL or BSAI series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 200 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 SAIJ200AX200-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×200 | 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 SAIJ200AX200-20 Is Used
Machine Changeover
Dial in the 180-200mm travel window during product size changes to set new end positions rapidly without machining new external stop blocks.
Heavy Pressing
Leverage the 21991N push force at 0.7 MPa for heavy assembly or pressing tasks, using the rear screw to fine-tune the exact bottoming position.
Automated End-Stop Setup
Use the rear adjuster to establish precise retract positions during initial commissioning, benefiting from the 50mm cushioning to safely decelerate large masses.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX200-20 the Right Cylinder?
Choose this 200mm bore size when your application demands extreme force, such as 21991N push at 0.7 MPa, which far exceeds the 14074N push force of the neighbouring 160mm bore. The adjustable stroke is ideal for machine setup and product changeover, allowing you to dial in the exact end-stop during commissioning. If you need to hold a load securely without continuous air pressure, this cylinder is not a lock; you should step up to an external rod lock or pilot-operated check valve. To replace this cylinder with an ISO 15552 equivalent, match the 200mm bore, 200mm stroke, 20mm adjustment, PT G3/4 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ200AX200-20 FAQ
At 0.7 MPa operating pressure, this 200mm bore cylinder generates a push force of 21991N and a pull force of 15080N. It can deliver a maximum push force of 28274N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 200mm nominal stroke by up to 20mm, providing a usable travel window of 180-200mm. It only sets the travel end position and does not lock the load without live air pressure.
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