Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm 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.
- BoreØ160 mm
- Stroke650 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-20
The AirTAC SAIJ160X650-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 630 to 650 mm, allowing you to dial back the nominal 650 mm stroke by up to 20 mm during machine commissioning. This bore generates a robust 10053 N pull force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
Equipped with a SUS420J2 stainless steel rod and PT tapered port threads, this model is built for demanding industrial environments. It features an extruded aluminum barrel with sensor grooves on both sides, though an -S magnet is required to use CMSE reed or DMSE electronic sensors. The rear adjuster acts solely as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | 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 SAIJ160 Adjustable Cylinder SAIJ160AX650-20 Is Used
Heavy Press Positioning
Fine-tune the 630-650 mm end-stop during heavy press setups, ensuring precise bottoming depth without physically remounting the actuator.
Pallet Changeover
Adjust the retract position on the fly when switching between different pallet sizes on a heavy-duty transfer line.
Large Assembly Jigs
Dial in the exact clamping reach on large-scale assembly jigs where a fixed 650 mm stroke would overshoot the target.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-20 the Right Cylinder?
Select this 160 mm bore cylinder when your application requires a 630 to 650 mm stroke range and substantial force, delivering 10053 N of pull at 0.5 MPa. If your setup demands less thrust, stepping down to a 125 mm bore yields 5734 N of pull force. The adjustable stroke is ideal for fine-tuning end positions on product changeovers without swapping out the entire cylinder or adding external stops.
Because the 650 mm stroke is relatively long, the 40 mm diameter rod will experience leverage forces under side-loading; an external guide rail is recommended to prevent premature seal wear. This SAIJ model uses a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Remember that the rear adjuster is a travel stop, not a locking device—for load-holding without live air pressure, consider the SAIL or BSAI series instead.
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 SAIJ160 Adjustable Cylinder SAIJ160AX650-20 FAQ
A rear adjusting screw lets you shorten the effective travel from 650 mm down to 630 mm, providing a 20 mm tuning window. This stopper only sets the retract end position; it does not lock the load or hold position without continuous air pressure.
At 0.5 MPa, it provides 10053 N of pull force and 14074 N of push force. The maximum thrust is 2050 kgf when operated at the 1.0 MPa pressure limit.
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