Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X280-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 280mm 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
- Stroke280 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 SAIJ200X280-50
The AirTAC SAIJ200X280-50 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. A rear-mounted adjusting stopper allows you to trim the effective travel back by up to 50mm, providing a usable stroke window of 230 to 280mm without swapping the unit.
This adjustable range is ideal for product changeovers on large machinery. The extruded aluminum barrel includes dual sensor grooves for standard CMSE reed and DMSE electronic switches. It utilizes a G3/4 PT port and offers 50mm of variable air cushioning at both ends to decelerate massive loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 280 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 SAIJ200X280-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×280 | 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 SAIJ200X280-50 Is Used
Heavy Machinery Changeover
Dial in the 230-280mm travel window during product size changes on large presses, eliminating the need to physically swap cylinders or add external mechanical stops.
End-Position Commissioning
Use the rear stopper screw to precisely set the retraction point during initial machine setup, ensuring perfect alignment without recoding the PLC or moving physical mount blocks.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-50 the Right Cylinder?
Select this 200mm bore cylinder when your application demands maximum thrust, such as 21991N at 0.7 MPa, and requires frequent fine-tuning of the retraction point during commissioning. If your force requirements are lower, stepping down to a 160mm bore yields 18095N at 0.9 MPa, which may better suit medium-duty setups. For load-holding without live air pressure, remember that the rear adjuster on this SAIJ model acts only as a travel stop; you would need an external rod lock or a dedicated SAIL pneumatic lock cylinder.
When replacing an ISO 15552 cylinder, match the 200mm bore, 280mm stroke, 50mm adjustment range, G3/4 PT port, and the specific mounting accessory. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Because the stroke is 280mm, ensure adequate external guiding to prevent excessive side loading on the rod.
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 SAIJ200X280-50 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 280mm stroke by up to 50mm. This creates a usable travel window of 230 to 280mm, allowing you to fine-tune the end position during commissioning. The adjuster only sets the travel end and does not lock the load without live air pressure.
It operates at a speed range of 30-500 mm/s, which is standard for larger 125-200mm bore sizes to manage the inertia of heavy moving loads.
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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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