Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-75
The AirTAC SAIJ80X200-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel. With a 200mm nominal stroke and a 75mm adjustment range, it provides a usable travel window of 125-200mm. This bore size delivers substantial thrust, pushing 3518N and pulling 2268N at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
Unlike a fixed-stroke SAI cylinder, this model lets you dial in the exact end-of-stroke position at commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for CMSE or DMSE switches, though this specific SKU is not magnet-equipped. The 25mm carbon steel rod and M20x1.5 thread provide robust resistance to side loads, while the available mounting set is reduced to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SAIJ80 Adjustable Cylinder SAIJ80X200-75 Is Used
Machine Changeover
Dial in the end position during product size changeovers without physically swapping cylinders or adding external mechanical stops.
Assembly Positioning
Fine-tune the 125-200mm travel window during commissioning to achieve exact pressing or clamping depth on varying component heights.
Diversion Stops
Adjust the retract stroke length on the fly to accommodate different package sizes moving along a conveyor line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X200-75 the Right Cylinder?
Choose this 80mm bore if you need more force than the 63mm option (which provides 2182N push at 0.7 MPa) but want to avoid the larger footprint of the 100mm bore. The 75mm adjustment window is ideal for machinery requiring frequent product-size changeovers, allowing variable end-stops without swapping hardware. Because the 200mm stroke is under the 300mm threshold, side-load risks are moderate, but an external guide is still recommended for heavy lateral loads.
For an ISO 15552 replacement, match the 80mm bore, 200mm nominal stroke, PT tapered port thread, and the required mounting accessory. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series instead.
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 SAIJ80 Adjustable Cylinder SAIJ80X200-75 FAQ
At 0.7 MPa, this 80mm bore cylinder provides 3518N of push force and 2268N of pull force. It can reach a maximum push force of 4523N at 0.9 MPa.
The rear adjuster screw lets you shorten the 200mm nominal stroke by up to 75mm, creating a usable travel window of 125-200mm. It acts as a mechanical stop for end-position tuning and is not a locking device.
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