Airtac SAIJ200 Adjustable Cylinder SAIJ200X275-50S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X275-50S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke275 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 SAIJ200X275-50S
The AirTAC SAIJ200X275-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, making it suited for heavy-duty positioning tasks. The integrated -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE electronic solid-state sensors mounted into the dual-side sensor grooves.
This specific SKU provides a 275 mm nominal stroke that can be fine-tuned down by up to 50 mm, creating a usable travel window of 225-275 mm. The rear adjusting screw acts purely as a mechanical stop to set the retract end position and relies on the standard variable air cushions for deceleration. It does not lock or hold the load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X275-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X275-50S |
|---|---|
| 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 | 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 SAIJ200X275-50S
| 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 SAIJ200X275-50S Is Used
Heavy Press Tuning
Dial in the exact 225-275 mm retract position during heavy press commissioning to accommodate varying material thicknesses without swapping cylinders.
Pallet Changeover
Adjust the end stop on the fly during production line changeovers to handle different pallet sizes, utilizing the 50 mm travel trim window.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X275-50S the Right Cylinder?
The adjustable stroke is chosen over a fixed-stroke SAI cylinder when you need to dial in the exact retract position during commissioning or product changeovers without adding external stops. To match this cylinder for an ISO 15552 replacement, verify the 200 mm bore, 275 mm stroke, 50 mm adjustment range, PT tapered port threads, carbon steel rod, and the -S magnet option.
Because the 275 mm stroke is substantial, the 40 mm diameter carbon steel rod and M36x2 rod thread provide robust support, but an external guide is still recommended to prevent excessive side-loading on the extruded aluminum barrel. If your machine requires true load-holding without pneumatic pressure, this standard adjuster stop is insufficient, and you should pivot to the SAIL air-released lock or BSAI clamp-lock cylinder series. The operating speed is rated for 30-500 mm/s, and mounting is limited to Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ200X275-50S FAQ
The rear mechanical stopper allows you to shorten the 275 mm nominal stroke by up to 50 mm, providing a usable travel window of 225-275 mm. This adjuster functions only as a travel stop and does not hold the load without live air pressure.
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