Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-50
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 135mm 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
- Stroke135 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-50
The AirTAC SAIJ200X135-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 135 mm stroke that can be dialed back by up to 50 mm, yielding a usable travel window of 85-135 mm for precise end-position tuning. In the 200 mm bore class, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, scaling up to 28274 N push at 0.9 MPa for heavy-duty pressing and clamping.
This model features a 40 mm SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and a robust M36x2 rod thread. Unlike fixed-stroke SAI variants, the external rear stopper allows you to trim the retract end position during commissioning without adding external stops or swapping the cylinder. The adjuster acts purely as a travel stop and does not hold the load without live air; for dead-stop holding, consider SAIL or BSAI models.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-50 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 135 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 SAIJ200AX135-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×135 | 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 SAIJ200AX135-50 Is Used
Heavy-Duty Press Tuning
Dial in the exact bottoming position during stamping or forming operations using the 50 mm adjustment window, preventing tool damage without machining custom spacers.
Variable Product Changeover
Quickly adapt automated lines to different package or part heights by trimming the retract stroke from 135 mm down to 85 mm directly at the rear stopper.
Large Assembly End-Stop
Leverage the 28274 N push force at 0.9 MPa to seat heavy components, using the rear adjuster to fine-tune the final clamping position during machine commissioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-50 the Right Cylinder?
Select this 200 mm bore cylinder when your application requires extreme thrust—up to 15708 N at just 0.5 MPa. If your force requirements are lower, stepping down to a 160 mm bore saves space while still delivering 10053 N of push force at 0.5 MPa. The adjustable 85-135 mm travel window is ideal for machines that process varying product sizes, allowing operators to change the end-stop on the fly without machining new hard stops.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 135 mm stroke, 50 mm adjustment range, PT tapered port threads, and your required mounting hardware. The SAIJ series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options. Because this configuration lacks the -S magnet option, it cannot host CMSE or DMSE sensors; if position feedback is needed, select a magnet-equipped variant.
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 SAIJ200AX135-50 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum operating pressure of 0.9 MPa, the push force increases to 28274 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 135 mm down to 85 mm, creating an 85-135 mm adjustable window. This stopper only sets the end position and does not lock the load without continuous air pressure.
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