Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-20
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X50-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 50mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-20
It features a robust 40mm carbon steel rod and PT tapered ports. By integrating an external adjusting screw at the rear, this actuator allows you to fine-tune the end position without swapping out the entire cylinder.
With a 50mm nominal stroke and a 20mm adjustment range, this model provides a usable travel window of 30-50mm. The rear screw acts purely as a mechanical stop for position tuning and relies on the integrated air cushions for end-of-stroke deceleration; it does not lock or hold the load without continuous live air pressure. For load-holding requirements, a SAIL or BSAI variant would be required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 50 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SAIJ200X50-20 Is Used
Heavy Press Tuning
Dial in the exact 30-50mm crush distance during heavy press commissioning to accommodate material thickness variations without adding external stops.
Product Size Changeover
Quickly adjust the rear stopper on a production line when switching between product sizes, leveraging the 20mm trim window to save setup time.
Short-Stroke Clamping
Apply up to 15708N of clamping force at 0.5 MPa on large components, using the fine adjustment to prevent over-travel on delicate workpieces.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-20 the Right Cylinder?
Selecting this 200mm bore actuator is ideal when your application demands extreme force, such as the 2805N available at 0.9 MPa, but requires precise mechanical end-position tuning during commissioning. If your setup does not need this 20mm adjustable window, a standard fixed-stroke SAI cylinder provides the same power. Because this is a 50mm stroke, it is well below the 1500mm maximum standard stroke, keeping the 40mm rod highly stable without needing external guides.
To match this exact unit for an ISO 15552 replacement, specify the 200mm bore, 50mm stroke, 20mm adjustment code, PT port threads, and the standard carbon steel rod. Note that SAIJ mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles found on some other profiles. Since no magnet is specified, it will not work with CMSE or DMSE sensors out of the box.
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 SAIJ200X50-20 FAQ
At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf of push force.
The rear adjuster screw allows you to shorten the 50mm nominal stroke, providing a usable travel window between 30mm and 50mm. The adjuster functions as a mechanical stop for position tuning and does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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