Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-50S
The AirTAC SAIJ200X275-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 275 mm travel by up to 50 mm for a precise 225-275 mm usable window. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa. Built with an SUS420J2 stainless steel rod and a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic sensors via the dual-side barrel grooves.
This adjustable-stop design enables fine end-position tuning at commissioning without swapping hardware or adding external stops. The rear screw acts purely as a travel stop and deceleration point alongside the standard air cushions; it does not hold the load without live air. For position holding without pneumatic pressure, an external rod lock or a related SAIL/BSAI series cylinder is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 275 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 SAIJ200AX275-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×275 | 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 SAIJ200AX275-50S Is Used
Heavy Press Tuning
Fine-tune the exact bottoming position of a high-tonnage press during initial commissioning using the 225-275 mm travel window.
Product Changeover Stops
Quickly adjust the retract end-stop on a heavy-duty conveyor diverter when switching between different pallet sizes on the line.
Large Fixture Actuation
Actuate large machining fixtures precisely, relying on the 40 mm SUS420J2 rod to handle high axial and minor side loads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-50S the Right Cylinder?
Selecting this 200 mm bore unit makes sense when your application requires extreme force—up to 15708 N push at 0.5 MPa—and variable end-stop positioning. If your setup only needs 10053 N of push force at the same pressure, stepping down to the 160 mm bore saves space and air consumption. Conversely, if you need fixed travel without rear adjustment, the standard SAI series is a simpler choice. This SAIJ model uses a PT tapered port thread and supports the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Because the 275 mm stroke is substantial, the 40 mm rod diameter and M36x2 rod thread provide robust resistance to bending, but an external guide is still recommended to handle side loads on long unsupported travels. When replacing an ISO 15552 cylinder, match the 200 mm bore, 275 mm stroke, 50 mm adjustment range, PT port, and -S magnet requirement.
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 SAIJ200AX275-50S FAQ
At 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 rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster allows you to shorten the 275 mm nominal stroke by up to 50 mm, creating a usable travel window of 225-275 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
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