Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-75S
The AirTAC SAIJ200X155-75-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 155 mm stroke that can be dialed back by up to 75 mm, yielding a highly flexible 80-155 mm usable travel window for precise end-position tuning at commissioning. Built with a SUS420J2 stainless steel rod (option A), it delivers massive thrust up to 15080 N pull at 0.5 MPa.
This model includes a built-in magnet for position sensing via CMSE reed or DMSE electronic switches. The rear adjustment screw acts purely as a mechanical stop to trim the retract distance without swapping cylinders, while the standard extruded aluminum barrel retains dual sensor grooves for easy switch mounting.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 155 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 SAIJ200AX155-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×155 | 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 SAIJ200AX155-75S Is Used
Heavy Press Tuning
Dial in the exact 80-155 mm retract distance during machine setup to accommodate varying material thicknesses without adding external mechanical stops.
Product Size Changeover
Quickly adjust the end-of-stroke position on a production line handling different large-scale product dimensions, leveraging the 75 mm trim range.
Large Assembly Forming
Apply up to 21991 N of push force at 0.7 MPa to seat heavy components, fine-tuning the final approach distance via the rear stopper screw.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-75S the Right Cylinder?
Choose this 200 mm bore when an application demands exceptionally high thrust, such as 21991 N push at 0.7 MPa, but requires variable end-stops for product changeovers. If your process needs less force, stepping down to a 160 mm bore yields 9425 N pull at 0.5 MPa, which saves space and air volume. Conversely, moving up is unnecessary unless you exceed 3204 kgf. The PT tapered port and G3/4 thread size match the high airflow demands of this large bore.
Because the stroke is 155 mm, an external guide is recommended to manage side loads on the 40 mm rod. The rear adjuster is a travel stop, not a lock; the SAIJ200X155-75-S will not hold its load without live air pressure. For fail-safe load holding, select the SAIL (air-released lock) or BSAI (clamp-lock) series instead. This SAIJ configuration uses the reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ200AX155-75S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw lets you shorten the 155 mm nominal stroke by up to 75 mm, creating an 80-155 mm usable travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
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