Airtac SAIJ125 Adjustable Cylinder SAIJ125X80-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X80-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X80-10S
The AirTAC SAIJ125X80-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 70 to 80 mm, letting you shorten the effective stroke by up to 10 mm during commissioning without swapping the cylinder. It delivers 6136 N of push force and 5734 N of pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
This unit includes a standard carbon steel rod and a -S magnet for position sensing. The extruded aluminum barrel integrates sensor grooves on both sides, compatible with AirTAC CMSE reed and DMSE electronic solid-state switches. It uses a PT tapered G1/2 port and offers variable air cushions at both ends to manage deceleration across its 30-500 mm/s speed range.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X80-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X80-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 80 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 SAIJ125X80-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×80 | 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 SAIJ125X80-10S Is Used
Machine Setup & Changeover
Fine-tune the 70-80 mm travel window during product size transitions without physically swapping the actuator or adding external mechanical stops.
Heavy-Duty Positioning
Leverage 6136 N of thrust at 0.5 MPa to move heavy pallets or fixtures, using the rear screw to dial in the exact resting position.
Variable End-Stop Trimming
Adjust the retract end-position by up to 10 mm on the fly to compensate for mechanical wear or sensor variance in automated lines.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X80-10S the Right Cylinder?
Choose this 125 mm bore when a 100 mm bore (offering 3927 N push at 0.5 MPa) lacks the necessary thrust, but before stepping up to a 160 mm bore (10053 N push) which adds unnecessary bulk. The adjustable stroke is ideal for applications requiring exact end-position tuning on product changeover, rather than relying on a fixed-stroke SAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
When specifying a replacement, match the 125 mm bore, 80 mm stroke, 10 mm adjustment, PT G1/2 port, and the -S magnet requirement. Because the rear adjuster acts only as a travel stop and the air cushions handle deceleration, neither will hold a load without live air pressure. For true load-holding, consider the SAIL or BSAI series instead.
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 SAIJ125X80-10S FAQ
The rear adjuster acts as a mechanical stop that lets you trim the nominal 80 mm stroke back by up to 10 mm, providing a usable travel window of 70 to 80 mm for fine-tuning at commissioning.
At 0.5 MPa operating pressure, it delivers 6136 N of push force and 5734 N of pull force. It can reach a maximum thrust of 1251 kgf at 1.0 MPa.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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