Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20 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 SAIJ200AX650-20
The AirTAC SAIJ200X650-20 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks, featuring a 650 mm nominal stroke that can be precisely dialed back by up to 20 mm. This yields a 630-650 mm usable travel window, allowing exact end-position tuning during commissioning without external stops. Operating at 0.7 MPa, it delivers a massive 21991 N of push force and 21053 N of pull force.
This made-to-order unit features a robust 40 mm rod and M36x2 rod thread to handle high side loads, paired with a PT tapered G3/4 port for optimal air flow. The rod utilizes SUS420J2 stainless steel for superior corrosion resistance. It includes adjustable air cushions at both ends to decelerate heavy loads smoothly, and its extruded aluminum barrel provides standard sensor grooves on both sides.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20 |
|---|---|
| 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 SAIJ200AX650-20
| 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 SAIJ200AX650-20 Is Used
Heavy Press Tuning
Fine-tune the 630-650 mm end-of-stroke position on heavy presses during setup, ensuring perfect contact force without machining custom spacers.
Product Size Changeover
Adapt large automated lines to new product dimensions by simply rotating the rear adjuster screw to shift the retraction point as needed.
Long-Stroke Alignment
Dial in the exact retracted height of heavy platens over the 650 mm travel window during machine commissioning to align with downstream equipment.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-20 the Right Cylinder?
Select this 200 mm bore cylinder when your application requires extreme thrust, such as 21991 N push at 0.7 MPa, and demands fine-tuning of the retracted position. If you need less force, stepping down to a 160 mm bore provides 14074 N push at 0.7 MPa. Because the 650 mm stroke is substantial, always use an external guide to support the load and prevent excessive side-loading on the rod seal.
The rear adjuster acts strictly as a travel stop for setting the 630-650 mm window, not as a locking device; it cannot hold a load without continuous live air. For positive load-holding without pressure, integrate an external rod lock or select an AirTAC SAIL or BSAI model. To match this ISO 15552 interchangeable cylinder exactly, specify: 200 mm bore, 650 mm stroke, 20 mm adjustment, PT G3/4 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and no magnet.
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 SAIJ200AX650-20 FAQ
At a standard operating pressure of 0.7 MPa, this 200 mm bore cylinder provides 21991 N of push force and 21053 N of pull force. It can reach a maximum push force of 32040 N at 1.0 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke by up to 20 mm, creating a 630-650 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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