Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-100 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 SAIJ125AX160-100
The AirTAC SAIJ125X160-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 160 mm travel by up to 100 mm. This creates a wide 60-160 mm usable end-position window, which is ideal for accommodating varied product sizes on a single line without swapping hardware. It delivers 6136 N of push force and 5734 N of pull force at 0.5 MPa.
This SKU features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The rear adjustment screw functions purely as a mechanical stop to fine-tune the retract position; it does not lock or hold the load without continuous air pressure. For load-holding requirements, an external pilot-operated check valve or a related SAIL locking cylinder is required.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-100 |
|---|---|
| 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 SAIJ125AX160-100
| 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 SAIJ125AX160-100 Is Used
Variable Product Changeover
Dial in the exact retract distance from 60 to 160 mm on the fly to handle multiple package sizes on a single packaging line without changing cylinders.
Machine Setup Calibration
Fine-tune the end-stop during initial commissioning to perfect the seating force of a 125 mm bore press without adding external mechanical shims.
Adjustable Material Stops
Act as an adjustable physical stop for heavy workpiece positioning, leveraging the 6136 N push force at 0.5 MPa to halt large assemblies accurately.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-100 the Right Cylinder?
Choose this 125 mm bore when a 100 mm bore (providing 3927 N push at 0.5 MPa) lacks the necessary thrust, but you want to avoid stepping up to a 160 mm bore that demands 10053 N and a heavier frame. The SAIJ125X160-100 is selected specifically when you need extensive on-the-fly end-position tuning across a 60-160 mm window, rather than a fixed 160 mm stroke standard SAI cylinder. Because the nominal stroke is 160 mm, an external guide is recommended to manage side loads if the piston rod is subjected to off-center masses.
To match this exact configuration for an ISO 15552 replacement, specify a 125 mm bore, 160 mm stroke, 100 mm adjustment range, PT port threads, SUS420J2 rod material, and no magnet. It supports the reduced SAIJ mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Operating speed for this bore size is 30-500 mm/s.
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 SAIJ125AX160-100 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
The rear adjuster screw allows you to trim the effective stroke by up to 100 mm from the nominal 160 mm, creating a usable travel window of 60 to 160 mm. The adjuster acts only as a travel stop and does not lock the load without live air pressure.
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