Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 65mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50
The AirTAC SAIJ100X65-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 15-65 mm usable travel window, allowing you to dial back the nominal 65 mm stroke by up to 50 mm during commissioning. Delivering 3927 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod (code B) and PT tapered ports.
The rear screw acts purely as a mechanical stop to fine-tune the end position without swapping the cylinder or adding external stops. It is not a locking device and will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI variants. This extruded aluminum profile cylinder supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 65 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX65-50 Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 15 and 65 mm on packaging machines without machining new hard stops or changing the cylinder.
Product Size Changeover
Quickly adjust the stroke by up to 50 mm to accommodate different product lengths on a single line, minimizing downtime between runs.
Heavy-Duty Forming
Leverage the 5497 N push force at 0.7 MPa for pressing and forming tasks where the exact bottoming position must be fine-tuned on-site.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX65-50 the Right Cylinder?
Choose this 100 mm bore when you need substantial thrust, such as 3927 N push at 0.5 MPa, but require variable end-stops for frequent product size changes. If your application needs less force, stepping down to an 80 mm bore yields 2513 N push at 0.5 MPa. The SUS304 stainless rod provides excellent corrosion resistance, and the G1/2 port ensures high flow. Because the stroke is under 300 mm, side-load risks are minimal, but external guides are still recommended for heavy loads.
When specifying a replacement, match the 100 mm bore, 65 mm stroke, 50 mm adjustment range, PT port thread, and the chosen mounting style. Note that this unit lacks a magnet; adding an -S suffix enables CMSE reed and DMSE electronic sensors via the dual-side barrel grooves. The adjuster and air cushions only decelerate the travel end, so never rely on them 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 SAIJ100BX65-50 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the 65 mm nominal stroke by up to 50 mm, creating a usable travel window of 15 to 65 mm. This stopper sets the end position but does not lock the load without continuous air pressure.
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