Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-40 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 SAIJ200AX75-40
The AirTAC SAIJ200X75-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that permits up to 40 mm of end-position tuning. This specific SKU provides a usable travel window of 35 to 75 mm, enabling precise mechanical setup without external stops. Built to deliver immense thrust, it generates 15708 N of push force and 15080 N of pull force at a 0.5 MPa operating pressure.
Equipped with a robust 40 mm SUS420J2 stainless steel rod and PT tapered port threads, this unit handles heavy loads effectively. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting, while the variable air cushions at both ends absorb the kinetic energy of this high-capacity actuator during operation.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-40 |
|---|---|
| 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 SAIJ200AX75-40
| 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 SAIJ200AX75-40 Is Used
Heavy Machinery Positioning
Dial in the 35-75 mm stroke window during heavy machinery assembly to perfectly seat massive components without re-mounting the entire actuator.
Product Line Changeover
Quickly adapt the end-stop position for new heavy-duty product variants on the same line, using the 40 mm rear adjustment screw to match new dimensions.
Press Fit Calibration
Fine-tune the pressing depth of large bearings or pins at commissioning, relying on the 15708 N push force to seat parts accurately.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-40 the Right Cylinder?
Selecting this 200 mm bore actuator over a smaller neighbour, like the 160 mm bore that outputs 10053 N of push force at 0.5 MPa, is necessary when your application requires maximum pneumatic thrust within an ISO 15552 mounting footprint. The adjustable stroke is chosen over a fixed-stroke SAI model when you need on-the-fly commissioning fine-tuning or product changeover flexibility, allowing you to dial in the exact 35-75 mm travel window mechanically.
For load-holding applications, remember that the rear adjuster on this cylinder acts strictly as a travel stop, not a lock or brake. The SAIJ200X75-40 cannot maintain its position without live air pressure. If your setup requires fail-safe load holding, you must integrate an external rod lock or pilot-operated check valve, or transition to an AirTAC SAIL or BSAI clamp-lock cylinder. This SKU supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ200AX75-40 FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder generates a push force of 15708 N and a pull force of 15080 N. At the maximum operating pressure of 1.0 MPa, it delivers a maximum push force of approximately 31416 N.
The rear-mounted adjusting screw acts as a mechanical stopper that allows you to shorten the effective stroke by up to 40 mm. This turns the nominal 75 mm stroke into a usable travel window of 35 to 75 mm, enabling precise end-position tuning at commissioning without changing the cylinder.
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