Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20S
The AirTAC SAIJ200X650-20-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, featuring a robust 200mm bore and a 650mm stroke. An integrated rear adjusting screw allows you to fine-tune the extend position, providing a usable travel window of 630 to 650mm. This built-in adjustability simplifies machine commissioning and product changeovers by letting you dial in the exact end-stop without adding external physical stops or swapping out the entire actuator. Equipped with a -S magnet, it supports AirTAC CMSE reed and DMSE electronic sensors for precise position feedback.
Delivering immense thrust, this bore generates 15708N of push force and 15080N of pull force at 0.5 MPa, peaking at 3204 kgf at 1.0 MPa. The rod is constructed from SUS420J2 stainless steel (code A) for enhanced durability against moisture and minor corrosion, paired with PT tapered port threads. As an extruded aluminum profile cylinder, it is dimensionally interchangeable per ISO 15552. The rear adjuster acts strictly as a travel stop to set the end position, not a lock, meaning it cannot hold a load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 650 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 SAIJ200AX650-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×650 | 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 SAIJ200AX650-20S Is Used
Heavy Press Tuning
Dial in the exact 630-650mm extend position during heavy press commissioning to accommodate material thickness variations without retooling.
Large Product Changeover
Adjust the rear stopper by up to 20mm on a packaging line to handle different large-format product sizes quickly and efficiently.
Automated Assembly Setup
Fine-tune the end-of-stroke position on heavy assembly stations to perfect component seating without adding external mechanical spacers.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20S the Right Cylinder?
Selecting this 200mm bore actuator is ideal when your application requires extreme force alongside variable end-position tuning. If your setup does not need the maximum 3204 kgf output at 1.0 MPa, stepping down to a 160mm bore reduces the physical envelope while still providing 10053N push force at 0.5 MPa. Conversely, if you need to trim the stroke further than the 20mm window offered here, you would need a different adjustment code. The integrated adjuster allows for on-the-fly changes during machine setup, which is far more efficient than machining custom spacers or replacing a fixed-stroke SAI cylinder.
Because this model features a long 650mm stroke, the 40mm diameter rod and M36x2 thread still require external guidance to prevent excessive side-loading and rod binding over extended travels. For load-holding requirements without live air pressure, this standard SAIJ configuration is insufficient; you should explore the SAIL (air-released lock) or BSAI (clamp-lock) series instead. When matching ISO 15552 replacements, ensure you specify the 200mm bore, 650mm stroke, 20mm adjustment, PT ports, SUS420J2 rod, -S magnet, and a compatible mounting set (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SAIJ200AX650-20S FAQ
At 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum operating pressure of 1.0 MPa, it delivers a peak push force of 3204 kgf.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 20mm. This creates a usable travel window of 630 to 650mm for fine-tuning the end position during setup without replacing the cylinder.
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