Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X300-40 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 SAIJ200X300-40
The AirTAC SAIJ200X300-40 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a usable travel window of 260 to 300 mm, enabling precise end-position tuning at commissioning without adding external stops.
This model uses a PT tapered G3/4 port and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic switches. The rear adjuster acts strictly as a travel stop for deceleration and positioning; it does not hold the load without live air pressure, so applications requiring dead-stop holding should utilize an external pilot-operated check valve or a BSAI clamp-lock cylinder.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40 |
|---|---|
| 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 SAIJ200X300-40
| 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 SAIJ200X300-40 Is Used
Heavy Press Fine-Tuning
Dial in the exact 260-300 mm retraction point on large assembly presses during setup or product changeover without swapping cylinders.
Variable Product Diversion
Adjust the rear stopper by up to 40 mm to handle different package sizes on a heavy-duty conveyor line, ensuring precise indexing.
Machine Setup Calibration
Use the rear mechanical stop to precisely set the end-of-stroke position during initial machine commissioning, avoiding external stopper fabrication.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X300-40 the Right Cylinder?
The 40 mm adjustment range is ideal for variable product changeovers where the exact retraction endpoint fluctuates by up to 40 mm, saving the cost of swapping a fixed-stroke SAI cylinder.
Because the 300 mm stroke is substantial and the rod is highly loaded, an external guide is recommended to prevent side-load damage to the rod seals. When replacing an ISO 15552 unit, match the 200 mm bore, 300 mm stroke, 40 mm adjustment, PT G3/4 port, and standard carbon steel rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some standard cylinders.
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 SAIJ200X300-40 FAQ
The rear adjuster screw allows you to mechanically shorten the effective stroke from its 300 mm nominal length down to 260 mm. This creates a 40 mm adjustable travel window for fine-tuning the end position at commissioning, but it functions only as a stop and does not lock the load without continuous air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
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