Airtac SAIJ125 Adjustable Cylinder SAIJ125X700-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X700-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 700mm 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.
- BoreØ125 mm
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X700-10
The AirTAC SAIJ125X700-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 700 mm stroke that can be fine-tuned down by up to 10 mm, giving an effective usable travel window of 690 to 700 mm. Delivering a substantial 8590 N of push force at 0.7 MPa, it is built for heavy-duty positioning tasks.
This model features a carbon steel piston rod with an M27x2 thread and a PT G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches. The rear adjuster functions purely as a mechanical stop to dial in the end position during commissioning; it does not lock or hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X700-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X700-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125X700-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×700 | 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 SAIJ125 Adjustable Cylinder SAIJ125X700-10 Is Used
Heavy Press Tolerance Tuning
Dial in the exact 690-700 mm end-stop during press assembly to compensate for mechanical wear or material thickness variations without external stopper blocks.
Product Size Changeover
Quickly adjust the retract position on a packaging line when switching between product sizes, using the 10 mm rear screw for precise end-point calibration.
Large Conveyor Positioning
Fine-tune the stroke end on heavy-duty conveyor diverters or large format material handling equipment where exact retraction is critical for timing.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X700-10 the Right Cylinder?
Choose this 125 mm bore when you need more force than the 80 mm option (3518 N push at 0.7 MPa) but less than the massive 160 mm class (14074 N). The 10 mm adjustment range is ideal for fine-tuning the retract end during machine setup or product changeover, avoiding the need to swap out a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead. Because the stroke is 700 mm, an external guide is recommended to prevent side-loading on the unsupported rod. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable with ISO 15552 cylinders.
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 SAIJ125 Adjustable Cylinder SAIJ125X700-10 FAQ
At 0.7 MPa operating pressure, this 125 mm bore cylinder provides 8590 N of push force and 5734 N of pull force. It can reach a maximum of 1251 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from 700 mm down to 690 mm. It is used for fine-tuning end positions at commissioning and is not a lock, meaning the cylinder requires live air to hold its load.
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