Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-100S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 425mm 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
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-100S
The AirTAC SAIJ200X425-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 325 to 425 mm, allowing you to dial back the 425 mm nominal stroke by up to 100 mm during commissioning without adding external stops. As the largest bore in the series, it delivers immense thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa, scaling up to 21991 N of push force at 0.7 MPa.
This specific SKU is configured with a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and includes a built-in magnet (-S) for position sensing. The extruded aluminum barrel integrates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. It operates at speeds of 30-500 mm/s and features adjustable air cushions at both ends to decelerate heavy 3204 kgf loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-100S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 425 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 SAIJ200AX425-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×425 | 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 SAIJ200AX425-100S Is Used
Heavy Press Fine-Tuning
Dial in the exact 325 to 425 mm end position during machine commissioning to set precise pressing depths on large industrial assemblies without swapping cylinders.
Product Size Changeovers
Quickly adjust the retract stop on packaging lines to accommodate varying large product sizes, using the 100 mm trim window to adapt the stroke on the fly.
Large Load Positioning
Move and position heavy 3204 kgf industrial loads with the 200 mm bore, relying on the built-in magnet and DMSE sensors to confirm end-of-stroke arrival.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-100S the Right Cylinder?
Select this 200 mm bore cylinder when an application requires extreme force combined with variable end-stop positioning. If you need less thrust, stepping down to a 160 mm bore changes the 0.5 MPa push force to 10053 N, but the 200 mm bore is necessary for heavy machinery pushing 15708 N. Choose the SAIJ adjustable-stroke design over a fixed SAI cylinder when you need to fine-tune the retract end position for product-size changeovers on a line. To match this exact configuration, specify the 200 mm bore, 425 mm stroke, 100 mm adjustment, PT tapered port thread, SUS420J2 rod, and the -S magnet.
Because the 425 mm stroke is substantial, the 40 mm rod diameter and M36x2 thread provide rigidity, but an external guide is strongly recommended to handle side loads over this long unsupported travel. Remember that the rear adjuster and air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For true load-holding without pneumatic pressure, integrate an external rod lock or pilot-operated check valve. This cylinder uses the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552.
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 SAIJ200AX425-100S FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw allows you to shorten the 425 mm nominal stroke by up to 100 mm, creating a usable travel window of 325 to 425 mm. This stopper fine-tunes the retract end position but does not lock the load without continuous air pressure.
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