Airtac SAIJ125 Adjustable Cylinder SAIJ125BX950-100S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125BX950-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 950mm 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
- Stroke950 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 SAIJ125BX950-100S
The AirTAC SAIJ125X950-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 950 mm nominal travel by up to 100 mm. This yields an 850-950 mm usable window, enabling precise end-position tuning at commissioning without swapping the hardware or adding external stops. It delivers 6136 N of push force at 0.5 MPa and 8590 N at 0.7 MPa.
This SKU features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for position sensing. The extruded aluminum barrel accepts CMSE reed and DMSE electronic switches. The rear adjuster acts as a travel stop to set deceleration, but it does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ125 Adjustable Cylinder SAIJ125BX950-100S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125BX950-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 950 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 SAIJ125BX950-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×950 | 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 SAIJ125BX950-100S Is Used
Variable End-Stop Forming
Dial the rear adjuster to shift the 950 mm travel window down to 850 mm for pressing different material thicknesses without changing the cylinder.
Machine Setup & Changeover
Fine-tune the retract end-position during product size transitions on automated lines, saving time versus repositioning fixed mechanical stops.
Extended-Reach Diverting
Handle long-stroke sorting tasks on wide conveyors, using the 100 mm adjustment margin to calibrate the exact divert distance at commissioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125BX950-100S the Right Cylinder?
Choose this 125 mm bore when a 100 mm bore (3927 N at 0.5 MPa) is insufficient and a 160 mm bore (10053 N at 0.5 MPa) is overkill. The adjustable travel is ideal for product changeovers on a line where the exact end-stop varies by part size. To replace an ISO 15552 cylinder, match the 950 mm stroke, 100 mm adjustment, PT G1/2 port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounts. Because the stroke is 950 mm, the M27x2 piston rod is highly susceptible to side loading; an external guide rail is required to prevent binding.
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 SAIJ125BX950-100S FAQ
At 0.5 MPa it 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 lets you shorten the effective travel by up to 100 mm, creating an 850-950 mm usable window. It acts as a stop to tune the end position, but it is not a lock and will not hold 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 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 SAIJ125BX950-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.