Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-75
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X300-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 300mm 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
- Stroke300 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 SAIJ200X300-75
The AirTAC SAIJ200X300-75 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 15708 N at 0.5 MPa and up to 28274 N at 0.9 MPa. By integrating an external adjusting screw, this 300 mm nominal stroke unit provides a usable travel window of 225-300 mm, allowing you to dial in the exact retract position during commissioning.
This extruded aluminum profile cylinder features a robust 40 mm carbon steel rod with an M36x2 thread, designed to handle heavy loads. It uses PT tapered port threads (G3/4) and operates at speeds of 30-500 mm/s. The rear stopper fine-tunes the end position, but it acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 300 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 SAIJ200X300-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×300 | 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 SAIJ200X300-75 Is Used
Heavy Press Tuning
Fine-tune the 225-300 mm retract position on heavy stamping or press operations to accommodate different material thicknesses without changing the cylinder.
Product Changeover
Adjust the end-stop quickly on a production line when switching between large product sizes, minimizing machine downtime during setup.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-75 the Right Cylinder?
The adjustable 225-300 mm window is ideal for heavy product changeovers where the exact end-of-stroke position varies, saving you from swapping cylinders or adding external mechanical stops. Because the nominal stroke is 300 mm, ensure an external guide supports the load to prevent excessive side-loading on the 40 mm rod.
When specifying a replacement, verify the 200 mm bore, 300 mm stroke, 75 mm adjustment range, PT G3/4 ports, and the required mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If your machine requires the load to be held mechanically without continuous air pressure, select a SAIL locking cylinder or a BSAI clamp-lock instead of relying on this adjuster.
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 SAIJ200X300-75 FAQ
At 0.9 MPa, the push force increases to 28274 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from the 300 mm nominal length down to 225 mm. This creates a 225-300 mm travel window for fine-tuning the retract position at commissioning without needing external stops.
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Standard models are processed and dispatched in 3-5 business days.
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