Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 40mm 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
- Stroke40 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40S
The AirTAC SAIJ200X40-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 200mm bore and a 40mm nominal stroke, yielding a usable travel window of 0-40mm. This wide adjustment band allows you to dial in the exact end-position at commissioning without swapping the cylinder or bolting on external stops. In the 200mm bore class, it delivers substantial force, providing 15708N of push thrust at just 0.5MPa and reaching 28274N at 0.9MPa.
This specific SKU ships with an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for position sensing. The sensor groove on both sides of the extruded aluminum barrel accepts AirTAC CMSE reed switches and DMSE electronic solid-state sensors. The M36x2 rod thread and 40mm rod diameter provide a robust interface capable of handling high side loads, though an external guide is still recommended for heavy lateral forces. It uses a PT tapered G3/4 port and operates at speeds of 30-500mm/s.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 40 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 SAIJ200AX40-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×40 | 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 SAIJ200AX40-40S Is Used
Press Stroke Calibration
Dial in the exact 0-40mm travel window during machine commissioning to set precise pressing forces without adding external mechanical stops.
Heavy Forming End-Position
Fine-tune the retract end-position on heavy forming presses where the 200mm bore provides up to 28274N of thrust at 0.9MPa.
Product Size Changeover
Quickly adjust the cylinder stroke on automated lines during product size transitions, using the rear screw to set new end stops rapidly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX40-40S the Right Cylinder?
Choose this 200mm bore adjustable cylinder when your application requires immense thrust—such as 15708N at 0.5MPa—and a variable end-stop within a 0-40mm window. If you need less force, stepping down to a 160mm bore yields 10053N at 0.5MPa, while moving up is not possible as 200mm is the largest standard size. The adjustable stroke is ideal for machine setups and product changeovers where the exact retract position varies, replacing the need for a fixed-stroke SAI cylinder.
For ISO 15552 replacement matching, ensure you specify the 200mm bore, 40mm stroke, 40mm adjustment range, PT G3/4 port, and the -S magnet. Mounting options include the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, CR). Remember that the rear adjuster acts only as a travel stop and the air cushions provide deceleration; neither holds the load without live air. For true load-holding without pneumatic pressure, use an external rod lock or pilot-operated check valve, or select the SAIL or BSAI cylinder series.
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 SAIJ200AX40-40S FAQ
The rear adjusting screw acts as an external stopper that lets you shorten the effective stroke by up to 40mm. With a 40mm nominal stroke, this gives you a usable travel window of 0-40mm, allowing fine end-position tuning without changing the cylinder.
It delivers a push force of 15708N and a pull force of 15080N at 0.5MPa. At 0.9MPa, the push force increases to 28274N.
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