Airtac SAIJ100 Adjustable Cylinder SAIJ100AX650-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX650-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX650-20
The AirTAC SAIJ100X650-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 630 to 650 mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches, though this specific unit lacks the internal magnet required to activate them.
This model features an SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The rear adjusting screw acts purely as a mechanical stop to fine-tune the retract position during commissioning; it does not lock or hold the load without continuous live air pressure. For applications requiring position holding without air, an external pilot-operated check valve or a dedicated SAIL lock cylinder is necessary.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX650-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX650-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX650-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX650-20 Is Used
Variable End-Stop Tuning
Dial in the exact 630 to 650 mm retract position during machine commissioning to accommodate varying product lengths without physically replacing the actuator.
Product Line Changeover
Quickly adjust the stroke by up to 20 mm during production line changeovers, using the rear stopper to instantly set new end positions for different assembly fixtures.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX650-20 the Right Cylinder?
The adjustable stroke is highly beneficial for machine setups requiring precise variable end-stops or product changeovers, allowing you to dial back the travel by up to 20 mm without swapping out the entire cylinder or adding external stops. If your force requirements are lower, a smaller bore like the 80 mm (2513 N at 0.5 MPa) might be more efficient.
Because this unit features a 650 mm stroke, the M20x1.5 rod thread and 25 mm rod diameter should be paired with an external guide to prevent excessive side-loading and premature seal wear. As an ISO 15552 interchangeable profile cylinder, it supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Remember that the rear adjuster and air cushions only decelerate the travel end; they do not function as a brake.
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 SAIJ100 Adjustable Cylinder SAIJ100AX650-20 FAQ
At the maximum operating pressure of 0.9 MPa, the push force increases to 7068 N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the 650 mm nominal stroke by up to 20 mm, creating a 630 to 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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