Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X50-40 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 SAIJ200X50-40
The AirTAC SAIJ200X200-40 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The built-in adjusting screw allows you to trim the effective travel back by up to 40 mm, creating a 10-50 mm usable window for precise end-position tuning during commissioning.
This model uses a robust 40 mm carbon steel piston rod with an M36x2 thread and a G3/4 port. It features variable air cushions at both ends to absorb kinetic energy, but the rear adjuster acts strictly as a travel stop, not a lock. For load-holding without live air pressure, you should use an external pilot-operated check valve or explore the BSAI clamp-lock series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40 |
|---|---|
| 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 SAIJ200X50-40
| 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 SAIJ200X50-40 Is Used
Machine Changeover
Dial in the 10-50 mm travel window during product size changes on a heavy-duty line without swapping out the entire actuator.
Large Fixture Clamping
Secure massive workpieces with up to 3204 kgf at 1.0 MPa, relying on the adjustable end-position to prevent over-travel damage.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X50-40 the Right Cylinder?
Choose this 200 mm bore size when your application requires extreme force that smaller bores cannot provide, such as heavy pressing or large gate actuation. If the 15080N pull force at 0.7 MPa is excessive for your fixture, stepping down to a 160 mm bore yields 9425N of pull force, while still offering the same 40 mm adjustment range. The adjustable-stroke design is selected over a fixed SAI cylinder when you need a variable end-stop to accommodate product changeovers or fine-tune the final position without adding external stops.
When matching this ISO 15552 replacement, ensure your parameters align: 200 mm bore, 50 mm stroke, 40 mm adjustment, PT tapered port thread, and standard carbon rod material without a magnet. Because this is a heavy-duty cylinder, it operates at a speed range of 30-500 mm/s. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR mounts found on some other profiles.
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 SAIJ200X50-40 FAQ
The rear adjusting screw acts as an external stopper that shortens the effective stroke by up to 40 mm. This means the 50 mm nominal stroke can be dialed back to a 10-50 mm usable travel window for fine-tuning at commissioning.
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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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