Airtac SAIJ200 Adjustable Cylinder SAIJ200BX280-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX280-75 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- 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 SAIJ200BX280-75
The AirTAC SAIJ200X280-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to dial back the 280 mm nominal stroke by up to 75 mm. This yields a precise usable travel window of 205-280 mm, allowing on-the-fly end-position tuning at commissioning without swapping out the physical cylinder. In the 200 mm bore class, it generates a substantial 15708 N of push force and 15080 N of pull force at 0.5 MPa.
This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic solid-state switches. Because the rear adjuster acts only as a travel stop and the air cushions manage deceleration, neither component will hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX280-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX280-75 |
|---|---|
| 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 | 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 SAIJ200BX280-75
| 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 SAIJ200BX280-75 Is Used
Heavy Press Tuning
Dial in the exact 205-280 mm end-position for large metal forming or heavy pressing tasks during machine setup and product changeover.
Variable Diverters
Adjust the stroke on large material handling lines to accommodate different pallet sizes without physically replacing the actuator.
Assembly Line Stops
Fine-tune retract end-stops on heavy-duty automotive assembly conveyors to safely decelerate substantial loads via the air cushion.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX280-75 the Right Cylinder?
Selecting this 200 mm bore unit provides up to 3204 kgf at 1.0 MPa; if your application requires less force, stepping down to the 160 mm bore yields 10053 N of push at 0.5 MPa. The 75 mm adjustment range is ideal for machinery requiring variable end-stops during product changeovers, eliminating the need to bolt on external stops or replace a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, this standard SAIJ is insufficient—you should look to the SAIL (air-released lock) or BSAI (clamp-lock) series instead.
When replacing an ISO 15552 cylinder, match these exact parameters: 200 mm bore, 280 mm stroke, 75 mm adjustment range, PT G3/4 ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2—omitting FB, CA, CB, CR). Although the 280 mm stroke is within the 1500 mm maximum for this bore, the heavy 40 mm rod and M36x2 thread handle significant side loads; however, for any stroke of 300 mm or more, an external guide is strongly recommended to prevent rod deflection.
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 SAIJ200BX280-75 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 its maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster screw acts as a mechanical stopper, allowing you to shorten the 280 mm nominal stroke by up to 75 mm. This creates a usable travel window of 205-280 mm for fine-tuning end positions at commissioning without replacing the cylinder. The adjuster is a stop, not a lock, and requires live air to hold position.
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