Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 130mm 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
- Stroke130 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-100
The AirTAC SAIJ125X130-100 is a double-acting ISO 15552 profile cylinder featuring a robust 125 mm bore and a nominal 130 mm stroke. Equipped with a rear mechanical stopper, it provides an exceptionally wide usable travel window of 30 to 130 mm, allowing operators to dial in the exact retract position without swapping hardware. It delivers 6136 N of push force at 0.5 MPa and utilizes a SUS420J2 stainless steel rod (material code A) for enhanced resistance to corrosion and surface wear in demanding environments.
This adjustable-stroke model features PT tapered port threads (G1/2) and dual-side sensor grooves on the extruded aluminum barrel. While it supports variable air cushions at both ends to decelerate the load, the rear adjuster acts solely as a travel stop and does not hold the load without live air pressure. For position holding without pneumatic pressure, an external rod lock or a related SAIL pneumatic lock cylinder is required.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 130 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 SAIJ125AX130-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×130 | 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 SAIJ125AX130-100 Is Used
Variable End-Stop Tuning
Perfect for press operations where the bottoming position must be micro-adjusted on the fly, utilizing the 30-130 mm travel window to accommodate different material thicknesses.
Machine Format Changeover
Enables rapid physical reconfiguration of packaging lines by retracting the stopper screw, allowing operators to switch product sizes without replacing the entire cylinder assembly.
Heavy-Duty Positioning
Leverages the 6136 N push force at 0.5 MPa to move heavy pallets or fixtures into exact alignment before a secondary process occurs.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX130-100 the Right Cylinder?
Selecting this 125 mm bore cylinder makes sense when your application demands high thrust—such as 6136 N push at 0.5 MPa—combined with highly variable end-position tuning. If you need less force, stepping down to a 100 mm bore yields 3927 N push force, whereas moving up to a 160 mm bore provides 10053 N. The SAIJ125X130-100 is chosen over a fixed-stroke SAI when machine formats change frequently, as the 100 mm adjustment window allows rapid product changeovers without machining new hard stops.
Because the 130 mm stroke exceeds the 300 mm threshold where side-loading becomes a major concern, the standard rod diameter of 32 mm is generally sufficient for axial loads, though external guidance should always be evaluated for off-center masses. To achieve a true ISO 15552 replacement match, verify the 125 mm bore, 130 mm stroke, PT port threads, and your required mounting style from the available SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Note that FB, CA, CB, and CR mounts are omitted from this series.
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 SAIJ125AX130-100 FAQ
At an operating pressure of 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 8590 N.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the effective stroke back from the 130 mm nominal length by up to 100 mm. This creates a usable travel window of 30 to 130 mm, though the adjuster only sets the end position and does not lock the load without continuous air pressure.
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