Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 375mm 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
- Stroke375 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20S
The AirTAC SAIJ200X375-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers massive thrust, pushing 28274N at 0.9 MPa, making it suitable for heavy-duty industrial applications. The built-in rear adjusting screw allows you to fine-tune the effective travel window down to a 355-375 mm range, providing precise end-position control during commissioning without needing external stops.
This specific SKU includes a piston magnet for use with AirTAC CMSE reed and DMSE solid-state sensors, which seat neatly into the dual-side sensor grooves on the extruded aluminum barrel. The rod is constructed from SUS420J2 stainless steel for enhanced durability against moisture, and the fluid ports utilize a PT tapered thread. Operating speed spans 30-500 mm/s, and the unit features variable air cushions at both ends to decelerate the heavy 200 mm bore payload smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 375 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 SAIJ200AX375-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×375 | 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 SAIJ200AX375-20S Is Used
Heavy Pressing Operations
Provides up to 3204 kgf at 1.0 MPa for heavy stamping or pressing tasks, with the 20 mm stroke adjuster allowing precise bottom-dead-center tuning to accommodate different material thicknesses.
Automated Machine Setup
The rear adjuster enables operators to dial in the 355-375 mm travel window during product changeovers without physically swapping the cylinder or adding external mechanical stops.
Large Component Handling
Ideal for moving heavy fabricated parts along an assembly line, utilizing the dual-side sensor grooves and included magnet to trigger DMSE solid-state switches for precise position feedback.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX375-20S the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires extreme force—up to 21991N at 0.7 MPa—and a 375 mm nominal stroke that needs exact end-position tuning. If your force requirements are lower, stepping down to a 160 mm bore yields 14074N at 0.7 MPa, which may reduce air consumption. The adjustable rear stopper is ideal for machine setups requiring variable end-stops during product changeovers, functioning as a travel stop rather than a load-holding lock.
Because this cylinder features a 375 mm stroke, the 40 mm diameter rod will experience amplified leverage on the rear bushing if subjected to lateral loads; an external guide rail is strongly recommended to prevent premature wear. For load-holding without continuous air pressure, this standard SAIJ configuration is insufficient—consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead. This model 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 SAIJ200AX375-20S FAQ
The rear of the cylinder features an external adjusting screw that acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 20 mm. This creates a usable travel window of 355-375 mm, enabling fine-tuning of the end position at commissioning without replacing the cylinder.
At a standard operating pressure of 0.5 MPa, it provides a push force of 15708N and a pull force of 15080N. At the maximum rated pressure of 1.0 MPa, the push force reaches 3204 kgf.
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