Airtac SAIJ125 Adjustable Cylinder SAIJ125X175-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X175-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X175-10
The AirTAC SAIJ125X175-10 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 6136N of push force at 0.5 MPa and features a 10mm adjustment range, creating a precise 165-175mm usable travel window for exact end-position tuning.
This bore utilizes a 32mm carbon steel piston rod with an M27x2 thread and a PT tapered port. The extruded aluminum barrel includes dual sensor grooves, and while this specific SKU lacks a magnet, adding an -S suffix enables compatibility with CMSE reed and DMSE electronic sensors.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X175-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X175-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 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 SAIJ125X175-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×175 | 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 SAIJ125X175-10 Is Used
Precision Forming Stops
Dial in the exact 165-175mm end-stop during metal forming setup to accommodate material thickness variations without changing the cylinder.
Machine Changeover
Quickly adjust the retract position by up to 10mm when switching between product sizes on a packaging line, minimizing downtime.
Heavy Assembly Clamping
Leverage the 6136N push force at 0.5 MPa to secure heavy components, using the fine adjustment to prevent over-travel and part damage.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X175-10 the Right Cylinder?
Choose this 125mm bore when a 100mm cylinder (providing 3927N push at 0.5 MPa) lacks the necessary thrust, but a 160mm bore is physically oversized. The 10mm rear stopper screw allows you to dial in the exact retract position during commissioning without fabricating external shims, unlike a fixed-stroke SAI cylinder. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the stroke is 175mm, side-load stress is manageable, but always guide the load properly. Note that the rear adjuster functions strictly as a travel stop, not a load-holding device; for position retention without live air, consider an external pilot-operated check valve or the SAIL lock variant.
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 SAIJ125X175-10 FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides 6136N of push force and 5734N of pull force. It can reach a maximum push force of 11045N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 175mm nominal stroke by up to 10mm, providing an effective travel window of 165-175mm. It is designed for fine-tuning end positions at commissioning and does not lock the load without live air pressure.
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