Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-100
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-100
The AirTAC SAIJ125X200-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 6136N push force at 0.5MPa, utilizing a 32mm SUS420J2 stainless steel rod for high side-load resistance. The rear stopper provides a usable travel window of 100 to 200mm, allowing precise end-position tuning during commissioning without swapping out the unit.
This adjustable-stroke model features PT tapered port threads (G1/2) and operates at speeds of 30-500mm/s. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches if a magnet is specified later. The adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-100 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 SAIJ125AX200-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×200 | 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 SAIJ125AX200-100 Is Used
Machine Setup & Changeover
Dial in the exact end position from 100 to 200mm during product line changeovers without machining new hard stops.
Variable End Stops
Provides a mechanical stop to define varying retraction depths for multi-format packaging equipment.
Commissioning Fine-Tune
Trim the nominal 200mm stroke by up to 100mm on-site to perfect timing and position without replacing the cylinder.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX200-100 the Right Cylinder?
Choose this 125mm bore cylinder when an application requires heavy thrust (6136N at 0.5MPa) alongside highly variable end-stop positioning. The 100mm adjustment range is ideal for product-size changeovers on a line. If less force is needed, stepping down to an 80mm bore yields 2513N push force at 0.5MPa. For load-holding without live air, select a SAIL or BSAI cylinder instead, as this rear adjuster is not a lock.
To replace an ISO 15552 cylinder, match the 125mm bore, 200mm stroke, 100mm adjustment, PT port thread, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is 200mm, ensure an external guide supports the rod to prevent excessive side-loading wear.
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 SAIJ125AX200-100 FAQ
At 0.5MPa it provides 6136N push and 5734N pull force. At 0.7MPa the push force increases to 8590N.
A rear screw stopper lets you mechanically shorten the effective travel from 200mm down to 100mm, creating a 100-200mm adjustable window. It acts as a travel stop and does not lock the load without air pressure.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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