Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-75 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 SAIJ200AX135-75
The AirTAC SAIJ200X135-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. With a nominal 135 mm stroke and a 75 mm adjustment range, it provides a highly flexible 60-135 mm usable travel window. At 0.5 MPa it generates 15708 N of push force and 15080 N of pull force, scaling up to 21991 N push at 0.7 MPa.
This unit features an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and utilizes PT tapered port threads with a G3/4 connection. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning; it does not lock the load without live air pressure. For position holding without pneumatic pressure, an external rod lock or related SAIL lock cylinder is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-75 |
|---|---|
| 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 SAIJ200AX135-75
| 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 SAIJ200AX135-75 Is Used
Heavy Machinery Changeover
Dial in the 60-135 mm retract window on heavy presses to accommodate different material thicknesses without mechanical rebuilds.
Variable End-Stop Positioning
Fine-tune the end-of-stroke position during commissioning using the rear screw, avoiding the need to physically swap out a fixed-stroke SAI cylinder.
Large Assembly Fixturing
Leverage the 15708 N push force at 0.5 MPa to secure and position large components, adjusting the stroke precisely to fixture variations.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX135-75 the Right Cylinder?
Select this 200 mm bore cylinder when an application demands extreme force alongside variable end-stop positioning, stepping up significantly from a 160 mm bore that yields 10053 N push at 0.5 MPa. The adjustable 60-135 mm travel window is ideal for heavy product changeovers, allowing operators to dial in the exact retract distance without swapping the cylinder or adding external stops. If your machine requires the load to be held securely during an air pressure drop, note that this SAIJ adjuster is a stop and not a brake; you would need to specify a BSAI clamp-lock cylinder instead.
When integrating this ISO 15552 dimensionally interchangeable cylinder, confirm the 135 mm stroke, 75 mm adjustment, PT G3/4 port, and the specific mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because this is a large-bore actuator operating at 30-500 mm/s, ensure your framework provides robust external guiding to handle the 40 mm rod and high kinetic energy, even though the standard adjustable air cushions at both ends absorb shock.
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 SAIJ200AX135-75 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 21991 N.
The rear adjuster allows you to mechanically shorten the 135 mm nominal stroke, providing a usable travel window between 60 and 135 mm. This stopper fine-tunes the retract position but does not hold the load without live air pressure.
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