Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20
The AirTAC SAIJ200X115-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. With a nominal 115 mm stroke and a 20 mm adjustment range, it provides a usable travel window of 95 to 115 mm. This allows you to dial in the exact retract end-position at commissioning without swapping out the actuator. At 0.5 MPa, it generates 15708 N of push force and 15080 N of pull force.
Built with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance, this 200 mm bore actuator uses a G3/4 PT tapered port. The extruded aluminum barrel features sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. The rear stopper functions purely as a travel limit and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 115 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 SAIJ200AX115-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×115 | 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 SAIJ200AX115-20 Is Used
Heavy Press Tuning
Fine-tune the 95-115 mm retract stop on heavy pressing equipment to accommodate material thickness variations without changing the cylinder.
Product Changeover
Adjust the end-position on automated lines during product size changes, using the 20 mm trim window to rapidly set new operational limits.
Large Clamp Positioning
Secure and position large workpieces where the exact clamping depth requires precise mechanical adjustment at the commissioning phase.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-20 the Right Cylinder?
Choose this 200 mm bore when stepping up from a 160 mm cylinder is necessary for greater force, as the 160 mm yields 10053 N push at 0.5 MPa compared to this model's 15708 N. The adjustable 95-115 mm travel window is ideal for applications requiring precise end-stop tuning during product changeovers, avoiding the need to bolt on external stops or buy a fixed-stroke SAI cylinder. If your application demands load-holding without continuous air pressure, a plain SAIJ is insufficient; consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead.
When integrating this actuator, note that SAIJ supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 115 mm stroke is relatively short for this massive bore, side-load risks are minimized, but the robust 40 mm rod and M36x2 thread handle substantial off-center loads efficiently.
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 SAIJ200AX115-20 FAQ
At 0.5 MPa operating pressure, the 200 mm bore provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it achieves a top push force of 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke back by up to 20 mm from the 115 mm nominal length, creating a 95-115 mm travel window. It only sets the end position and does not lock the load without live air.
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