Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-10
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 125mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-10
The AirTAC SAIJ200X125-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to fine-tune the retract end-position. It delivers a massive 15708N push force and 15080N pull force at 0.5 MPa, making it suitable for heavy-duty press operations. By turning the rear stopper screw, you achieve a usable travel window of 115-125mm without adding external stops.
This bore size features a robust 40mm piston rod and a G3/4 port for high flow. The barrel is machined from extruded aluminum with sensor grooves on both sides. The rod is constructed from SUS420J2 stainless steel, and the unit uses PT tapered port threads.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-10 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×125 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX125-10 Is Used
Press Positioning
Dial in the exact 115-125mm stroke during setup to accommodate varying material thicknesses on a heavy-duty press line.
Machine Changeover
Quickly fine-tune the retract end-position when switching product sizes, eliminating the need to swap out the entire cylinder.
Heavy Assembly
Leverage the 15708N push force at 0.5 MPa to drive large mating components together, adjusting the final clamp position on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-10 the Right Cylinder?
At 0.5 MPa, this 200mm bore generates 15708N of thrust; stepping down to a 160mm bore drops the push force to 10053N, while this size is required if your application needs the maximum 3204 kgf at 1.0 MPa. Choose this adjustable-stroke SAIJ variant over a fixed SAI when you need to dial in a precise 115-125mm end-stop during machine commissioning or product changeover. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200 Adjustable Cylinder SAIJ200AX125-10 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
A rear stopper screw lets you shorten the 125mm nominal stroke by up to 10mm, creating a usable travel window of 115-125mm. This allows precise end-position tuning at commissioning without replacing the cylinder.
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