Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50S 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 SAIJ200AX55-50S
The AirTAC SAIJ200X55-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position. It provides a usable travel window of 5-55 mm, enabling precise variable end-stops without adding external stops. Delivering 15708 N of push force at 0.5 MPa, it is built for heavy-duty tasks.
This variant features a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. It uses PT tapered ports and retains the standard SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50S |
|---|---|
| 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 SAIJ200AX55-50S
| 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 SAIJ200AX55-50S Is Used
Heavy Press Tuning
Dial in the exact 5-55 mm travel window during machine setup to accommodate varying material thicknesses without swapping out the entire cylinder.
Product Changeover
Quickly adjust the retract end-stop on a production line when switching to a new product size, leveraging the 15708 N push force for robust actuation.
Variable End-Stop Forming
Use the rear adjuster to set precise deformation limits on heavy-gauge metal forming equipment, ensuring consistent output across different batches.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX55-50S the Right Cylinder?
Choose this 200 mm bore cylinder when your application demands massive thrust—up to 15708 N at 0.5 MPa—and requires exact end-position tuning at commissioning. If you need less force, stepping down to a 160 mm bore yields 10053 N of push force. The rear adjuster acts solely as a travel stop to decelerate the load; it does not hold the load without live air. For position holding without continuous pressure, consider an external pilot-operated check valve or the AirTAC SAIL lock cylinder.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 55 mm nominal stroke, 50 mm adjustment range, PT port thread, and the -S magnet option. Because the stroke is short, side-loading is less of a concern than with long-travel cylinders, but the robust 40 mm rod and M36x2 thread handle high side loads well.
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 SAIJ200AX55-50S FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 3204 kgf.
The rear adjusting screw allows you to trim the effective stroke by up to 50 mm. This creates a usable travel window of 5 to 55 mm, letting you fine-tune the retract end-position at commissioning without changing the cylinder or adding external stops.
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