Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 65mm 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
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20S
The AirTAC SAIJ200X65-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 45 to 65 mm for precise end-position tuning. It delivers massive thrust, generating 21991N of push force at 0.7 MPa and 15080N of pull force at the same pressure. The extruded aluminum barrel design includes sensor grooves on both sides for straightforward switch mounting.
This specific SKU features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a built-in magnet (-S) for use with CMSE reed and DMSE electronic sensors. The rear adjustment mechanism acts purely as a travel stop to dial in the exact retract position during commissioning without adding external stops, but it does not hold the load dynamically without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 65 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 SAIJ200AX65-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×65 | 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 SAIJ200AX65-20S Is Used
Heavy Press Fine-Tuning
Dial in the exact 45-65mm retract position during machine commissioning to accommodate varying material thicknesses without installing external physical stops.
Product Size Changeover
Quickly adjust the effective stroke on automated lines when switching between different product sizes, leveraging the 20mm adjustment range for rapid setup.
High-Force Positioning
Move heavy assemblies using the 21991N push force at 0.7 MPa, relying on the built-in magnet and DMSE sensors to confirm end-of-travel for the PLC.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20S the Right Cylinder?
Choose this 200mm bore when an application demands exceptionally high force, such as 21991N push at 0.7 MPa, combined with a short, highly adjustable travel window. If your process requires less thrust, stepping down to a 160mm bore yields 14074N push at 0.7 MPa, while moving up is not possible as 200mm is the largest standard SAIJ size. The adjustable 45-65mm stroke is ideal for setups requiring frequent product-size changeovers, providing a variable end-stop without swapping out the entire cylinder for a fixed-stroke SAI variant.
Because the 65mm stroke is well under the 300mm threshold, side-load risks from the 40mm rod are minimal, though the M36x2 rod thread provides a robust interface for heavy-duty tooling. Remember that the rear adjuster and the variable air cushions only decelerate the travel end; they are not a lock. For true load-holding without live air pressure, select the SAIL (air-released lock) or BSAI (clamp-lock) series instead. This cylinder uses PT tapered port threads and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
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 SAIJ200AX65-20S FAQ
At an operating pressure of 0.7 MPa, this 200mm bore cylinder generates 21991N of push force and 15080N of pull force. It can reach a maximum push force of 28274N at 0.9 MPa.
The rear adjuster screw allows you to shorten the 65mm nominal stroke by up to 20mm, providing an effective travel window of 45 to 65mm. This stopper fine-tunes the end position at commissioning but does not lock or hold the load without continuous air pressure.
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