Airtac SAIJ125 Adjustable Cylinder SAIJ125BX175-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125BX175-100 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
- 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 SAIJ125 Adjustable Cylinder SAIJ125BX175-100
The AirTAC SAIJ125X175-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 6136N push force at 0.5MPa. It features a SUS304 stainless steel rod and a PT tapered port. By integrating an external stopper at the rear, this model allows you to fine-tune the end position without swapping out the entire unit.
With a 175mm nominal stroke and a 100mm adjustment code, it provides a highly versatile usable travel window of 75 to 175mm. This wide adjustment range is ideal for product-size changeovers on a line. The extruded aluminum barrel includes sensor grooves on both sides, and operating speed runs at 30-500mm/s.
Airtac SAIJ125 Adjustable Cylinder SAIJ125BX175-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125BX175-100 |
|---|---|
| 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 SAIJ125BX175-100
| 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 SAIJ125BX175-100 Is Used
Product Changeovers
Dial in the 75-175mm travel window during format size changes on packaging lines without replacing hardware.
End-Position Tuning
Fine-tune the retract end-stop during machine commissioning to perfectly align heavy 6136N press operations.
Variable End Stops
Adapt actuator reach on the fly for automated assembly equipment handling diverse component heights.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125BX175-100 the Right Cylinder?
Choose this 125mm bore when you need heavy thrust (6136N push at 0.5MPa) alongside extreme travel flexibility. If your application requires less force, stepping down to a 100mm bore yields 3927N; conversely, a 160mm bore provides 10053N. The adjustable stroke is chosen over a fixed SAI cylinder when you need commissioning fine-tuning or variable end-stops without adding external stops. To match this ISO 15552 footprint, specify the 125mm bore, 175mm stroke, 100mm adjustment, PT port, SUS304 rod, and no magnet. Note that the rear adjuster is a travel stop, not a lock; for load-holding without live air, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ125BX175-100 FAQ
It uses a rear external stopper to shorten the effective stroke. With a 175mm nominal stroke and a 100mm adjustment range, the usable travel window can be fine-tuned anywhere from 75mm to 175mm.
At 0.5MPa operating pressure, it provides 6136N of push force and 5734N of pull force. At 0.7MPa, the push force increases to 8590N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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