Airtac SAIJ125 Adjustable Cylinder SAIJ125X140-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X140-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X140-10S
The AirTAC SAIJ125X140-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 130 to 140 mm. Built with a carbon steel rod and a -S magnet for position sensing, it delivers 6136 N of push force at 0.5 MPa, making it suited for heavy-duty positioning tasks.
This adjustable-stroke model allows you to fine-tune the retract end position at commissioning without adding external stops. The extruded aluminum barrel features sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches, while the PT tapered ports ensure a reliable pneumatic connection.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X140-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X140-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 140 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 SAIJ125X140-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×140 | 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 SAIJ125X140-10S Is Used
Heavy-Duty End Tuning
Dial in the exact 130-140 mm retract position on high-thrust forming or clamping stations without machining new hard stops.
Product Changeover
Quickly adjust the stroke window by up to 10 mm to accommodate slight variations in part sizes on automated assembly lines.
Sensor-Ready Positioning
Leverage the built-in -S magnet with DMSE electronic sensors to confirm end-of-stroke travel in automated material handling.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X140-10S the Right Cylinder?
Select this 125 mm bore cylinder when a smaller 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 unit. The 10 mm adjustment range is ideal for dialing in exact end stops during machine setup or product changeovers, offering flexibility a fixed-stroke SAI cannot match.
For replacements, match the 125 mm bore, 140 mm stroke, 10 mm adjustment, PT port thread, and -S magnet option. Note that the rear adjuster functions strictly as a travel stop and does not hold the load without live air; for dead-air load holding, consider an AirTAC SAIL or BSAI locking 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 SAIJ125X140-10S 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 acts as a mechanical stop that allows you to shorten the nominal 140 mm stroke by up to 10 mm, creating a 130-140 mm travel window. It only sets the end position and does not lock the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125X140-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.