Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-30
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 160mm 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
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-30
The AirTAC SAIJ125X160-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 160 mm stroke that can be fine-tuned down by up to 30 mm, yielding a usable travel window between 130 and 160 mm. Delivering 6136 N of push force at 0.5 MPa, this extruded aluminum body cylinder handles heavy-duty positioning without needing external stops.
The rear adjuster acts purely as a mechanical stop to set the retract end position and works alongside the standard variable air cushions. It does not lock the load without live air; for pilot-operated holding, consider the SAIL or BSAI variants. This bore uses a G1/2 port and a 32 mm carbon steel rod with an M27x2 thread, providing robust resistance to side loads, while operating speeds span 30-500 mm/s.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-30 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 160 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 SAIJ125X160-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×160 | 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 SAIJ125X160-30 Is Used
Product Changeover
Quickly dial the stroke back by up to 30 mm when switching between product sizes on the line, avoiding mechanical teardown.
Heavy Press Fitting
Leverage 6136 N of thrust at 0.5 MPa to seat large components, using the adjustable end-stop to prevent over-travel.
Variable End Stops
Set precise retract positions for heavy machinery actuators without installing extra external shock absorbers.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X160-30 the Right Cylinder?
Choose this 125 mm bore when an 80 mm bore (2513 N push at 0.5 MPa) lacks the thrust for moving heavy assemblies, but a 160 mm bore (10053 N) would be excessive. The 30 mm adjustment range is ideal for dialing in exact end positions during commissioning or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. To match this ISO 15552 interchangeable cylinder, confirm the 160 mm stroke, 30 mm adjuster, PT tapered port thread, and carbon steel rod material.
Because the stroke is 160 mm, side-load risks are moderate, but always ensure external guiding for heavy off-center loads. The SAIJ supports a specific mounting subset including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. As a standard unit without a magnet, it does not support CMSE or DMSE sensors unless specified with the -S option.
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 SAIJ125X160-30 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. It can reach up to 11045 N push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 160 mm nominal stroke anywhere within a 130 to 160 mm travel window. It sets the end position but does not hold the load without continuous air pressure.
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