Airtac SAIJ125 Adjustable Cylinder SAIJ125BX110-40
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125BX110-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 110mm 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
- Stroke110 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 SAIJ125BX110-40
The AirTAC SAIJ125X110-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end-of-travel position without swapping out the unit. With a 110 mm nominal stroke and a 40 mm adjustment range, it provides a usable travel window of 70 to 110 mm. This bore size delivers 6136 N of push force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches, though this specific SKU is configured without a magnet. It features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the travel limit and does not hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125BX110-40 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125BX110-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 110 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 SAIJ125BX110-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×110 | 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 SAIJ125BX110-40 Is Used
Variable End-Stop Forming
Dial in the retract distance up to 40 mm to accommodate different material thicknesses in a single metal-forming station without changing hardware.
Machine Changeover Setup
Fine-tune the end position during product line changeovers to perfectly align heavy 125 mm bore clamping forces with new fixture dimensions.
Adjustable Packaging Indexing
Modify the stroke window from 70 to 110 mm on the fly to handle varying package sizes on an automated packaging line.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125BX110-40 the Right Cylinder?
Choose this 125 mm bore cylinder when an application requires substantial force combined with variable end-stops for product changeovers or machine setup. If your process needs less force, stepping down to a 100 mm bore yields 3927 N of push force at 0.5 MPa. The 40 mm adjustment window lets you dial in the exact retract position at commissioning rather than relying on fixed-stroke SAI alternatives. Because the rear screw is a travel stop and not a lock, applications requiring true load-holding without continuous air pressure should utilize a SAIL pneumatic lock or BSAI clamp-lock cylinder instead. To replace an ISO 15552 cylinder, match the 125 mm bore, 110 mm stroke, 40 mm adjust, PT G1/2 port, and SUS304 rod material.
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 SAIJ125BX110-40 FAQ
At a 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. It can reach up to 11045 N of push force at 0.7 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 110 mm nominal stroke down to as little as 70 mm. This allows precise end-position tuning at commissioning without adding external stops.
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.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125BX110-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.