Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-40S
The AirTAC SAIJ200X55-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust with 15708N push force at 0.5 MPa. Its SUS420J2 stainless steel rod (code A) provides excellent corrosion resistance, while the integrated magnet enables precise position detection. With a nominal 55mm stroke, the external rear screw allows you to trim the effective travel back by up to 40mm, creating a usable 15-55mm adjustment window.
This adjustable range is ideal for fine-tuning end positions during commissioning without swapping hardware. The extruded aluminum barrel features sensor grooves on both sides for CMSE reed and DMSE electronic switches. Operating at 30-500mm/s, it uses a G3/4 port and includes variable air cushions at both ends to decelerate heavy loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 55 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 SAIJ200AX55-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×55 | 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 SAIJ200AX55-40S Is Used
Heavy-Duty Press Tuning
Dial in the exact 15-55mm pressing depth during machine setup to accommodate different material thicknesses without changing the cylinder.
Product Size Changeover
Quickly adjust the retract end-stop on a packaging line to handle varying product dimensions while utilizing the full 15708N force at 0.5 MPa.
Short-Stroke Clamping
Secure heavy components with precise end-position control, relying on the robust SUS420J2 stainless rod for demanding industrial environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-40S the Right Cylinder?
Select this 200mm bore cylinder when an application requires extreme force—up to 21991N push at 0.7 MPa—combined with a short, highly adjustable travel window. If you need less force, stepping down to a 160mm bore yields 10053N at 0.5 MPa, but the SAIJ200X55-40-S is necessary for heavy pressing or clamping. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not hold the load without live air. For true load-holding without pneumatic pressure, consider an external rod lock or the AirTAC SAIL locking cylinder.
As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. To match this exact replacement, specify: 200mm bore, 55mm stroke, 40mm adjustment, PT tapered port threads, SUS420J2 rod, and the -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 40mm diameter rod and M36x2 thread handle significant side loads, ensure external guiding is used if the application involves any off-center forces.
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 SAIJ200AX55-40S FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At 0.9 MPa, the push force increases to 28274N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 55mm nominal stroke by up to 40mm. This provides a usable travel window of 15-55mm for fine-tuning the end position at commissioning without adding external stops.
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