Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20
The AirTAC SAIJ200X155-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers massive thrust, pushing with 15708N and pulling with 15080N at 0.5 MPa, making it suited for heavy-duty positioning tasks. The integrated rear stopper allows you to trim the effective travel, creating a 135-155mm usable window for precise end-position tuning without adding external stops.
This model uses a SUS420J2 stainless steel piston rod (option A) for enhanced durability against lateral stress, paired with a robust M36x2 rod thread and G3/4 air ports. As an extruded aluminum profile cylinder, it includes sensor grooves on both sides. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 155 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 SAIJ200AX155-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×155 | 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 SAIJ200AX155-20 Is Used
Heavy Press Tuning
Dial in the exact 135-155mm travel window on heavy stamping presses to accommodate different material thicknesses without changing the cylinder.
Product Changeover Stops
Adjust the retract end-position on packaging lines during format size changes, using the rear screw to set new stops rapidly.
Large Fixture Clamping
Secure heavy machinery components with 15708N of force while fine-tuning the clamping depth at commissioning via the rear adjuster.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20 the Right Cylinder?
Select this 200mm bore cylinder when an application requires up to 15708N of push force at 0.5 MPa and exact end-position control. The 20mm rear adjuster is ideal for fine-tuning the retract stroke during machine commissioning or product changeover, eliminating the need to swap out a fixed-stroke SAI cylinder. Because the stroke is 155mm, the M36x2 rod handles side loads well, but any long unsupported tooling should still use an external guide.
When specifying this ISO 15552 interchangeable cylinder, confirm the 200mm bore, 155mm stroke, 20mm adjustment range, PT tapered port threads, and the absence of a magnet. Note that the rear adjuster acts only as a mechanical stop; it does not hold the load without live air. For fail-safe load holding, consider the SAIL or BSAI series instead.
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 SAIJ200AX155-20 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster allows you to shorten the 155mm nominal stroke by up to 20mm, providing a usable travel window of 135-155mm. This mechanical stopper only sets the travel end and does not lock or hold the load without continuous air pressure.
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