Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-30S
The AirTAC SAIJ200X75-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to a 45-75 mm range without adding external stops. Delivering a massive 15708 N of push force at 0.5 MPa, it is built for heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides, and this -S configuration includes a magnet for position feedback.
This model uses an SUS420J2 stainless steel piston rod (code A) for enhanced corrosion resistance compared to standard carbon steel. It features PT tapered port threads and operates at speeds of 30-500 mm/s. The rear adjustment mechanism acts purely as a mechanical stop to set the retraction end-point, working alongside the variable air cushions at both ends to decelerate the load.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAIJ200AX75-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SAIJ200AX75-30S Is Used
Press Position Tuning
Dial in the exact 45-75 mm retraction point during machine commissioning to accommodate different material thicknesses without swapping out the cylinder.
Heavy Forming End-Stop
Leverage the 15708 N push force for heavy pressing operations, using the rear stop to precisely set the bottom-dead-center for each product run.
Product Size Changeover
Quickly adjust the travel window on automated packaging lines when switching box sizes, relying on the 30 mm trim range for flexible end-positioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-30S the Right Cylinder?
Selecting this 200 mm bore cylinder provides 15708 N push and 15080 N pull force at 0.5 MPa; stepping down to a 160 mm bore would reduce output to 10053 N, which may be insufficient for heavy loads. The 30 mm adjustment window is ideal for product changeovers on a line, letting operators dial in the exact end position at commissioning rather than machining custom spacers.
Because the stroke is 75 mm, side-load risks are lower than with long-stroke setups, but the heavy mass still requires external guiding if the load is not perfectly aligned. Remember that the rear adjuster is a travel stop, not a lock; the SAIJ cylinder cannot hold a load without live air pressure. For fail-safe load holding, consider the SAIL (pneumatic lock) or BSAI (clamp-lock) series instead. This unit is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ200AX75-30S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 3204 kgf of push force.
The rear adjuster screw lets you mechanically shorten the 75 mm nominal stroke by up to 30 mm, creating a usable 45-75 mm travel window. It acts as a physical stop for the retract end-position and is not a locking device.
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