Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20 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 SAIJ200AX65-20
The AirTAC SAIJ200X65-20 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, making it suited for heavy-duty positioning. By turning the external stopper screw, you achieve a usable travel window of 45-65 mm, allowing you to trim the effective stroke by up to 20 mm without swapping the cylinder.
This unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the magnet, so external position sensing is required. The rear adjuster acts strictly as a travel stop to fine-tune deceleration and end positions, not as a lock to hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20 |
|---|---|
| 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 SAIJ200AX65-20
| 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 SAIJ200AX65-20 Is Used
Heavy Press Tuning
Dial in the exact 45-65 mm pressing depth during machine setup to accommodate different material thicknesses without changing the cylinder.
Product Changeover
Quickly adjust the end-stop position on a packaging line by up to 20 mm to handle varying product sizes on the fly.
Short-Stroke Clamping
Utilize the massive 15708 N push force for heavy-duty clamping tasks where the exact contact point requires fine-tuning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-20 the Right Cylinder?
Select this 200 mm bore cylinder when an application demands extreme force combined with a short, highly adjustable travel window. If the 15708 N push force at 0.5 MPa exceeds your requirements, stepping down to a 160 mm bore yields 10053 N, whereas moving up is impossible as 200 mm is the largest standard size. The adjustable 45-65 mm stroke is perfect for machine changeovers, letting you dial in the exact end position during commissioning rather than machining custom external stops.
Because the 65 mm stroke is short, side-loading is less of a concern than with longer strokes, but the 40 mm rod and M36x2 thread provide excellent rigidity. Remember that the rear adjuster only sets the travel end; if you need to hold a heavy load safely without continuous air pressure, you must integrate an external rod lock or choose an AirTAC SAIL or BSAI cylinder. For a direct ISO 15552 replacement, match the 200 mm bore, 65 mm stroke, 20 mm adjustment, PT port threads, and the SUS420J2 rod material.
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 SAIJ200AX65-20 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the 65 mm nominal stroke by up to 20 mm, creating a usable travel window of 45-65 mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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