Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-100
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm 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
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-100
The AirTAC SAIJ200X400-100 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications requiring precise end-position tuning. A rear stopper mechanism allows you to trim the nominal 400 mm stroke back by up to 100 mm, providing a usable travel window of 300 to 400 mm without swapping hardware. Delivering a massive 28274 N of push force at 0.9 MPa, this 200 mm bore unit handles substantial loads with ease.
This model features a SUS420J2 stainless steel rod for enhanced durability against moisture and corrosion. PT tapered port threads ensure a tight, reliable pneumatic seal at the G3/4 fitting. While the rear adjuster and variable air cushions effectively decelerate the piston at the end of travel, they act as stops rather than locks; for load-holding without live air pressure, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-100 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 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 SAIJ200AX400-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×400 | 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 SAIJ200AX400-100 Is Used
Heavy Press Tuning
Dial in the exact bottoming position of a large forming press across a 300 to 400 mm window during tooling changes without adding external mechanical stops.
Pallet Diversion
Adjust the retract distance of a heavy-load diverter on the fly to accommodate different pallet sizes on the same production line.
Large Assembly Fixtures
Fine-tune the clamping reach of massive welding or assembly fixtures, ensuring precise end-stop positioning for varied product dimensions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX400-100 the Right Cylinder?
Selecting this 200 mm bore cylinder makes sense when your machinery requires extreme thrust, such as 21991 N at 0.7 MPa, and on-the-fly stroke adjustments during product changeovers. If your application needs less force, stepping down to a 160 mm bore provides 14074 N of push at 0.7 MPa, which might save space and air consumption. Conversely, if you only need standard fixed travel without the rear adjustment screw, the standard AirTAC SAI series is a more direct solution.
When configuring your ISO 15552 replacement, verify the 400 mm stroke, 100 mm adjustment range, PT port threads, and your preferred 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 adjustable series. Because this cylinder features a 400 mm stroke and a 40 mm rod diameter, long unsupported strokes necessitate an external guide to prevent excessive side-loading and premature seal wear. This specific configuration does not include a magnet for position sensing.
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 SAIJ200AX400-100 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.9 MPa, the push force increases significantly to 28274 N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke from the nominal 400 mm down to as little as 300 mm. This enables fine-tuning of the end position at commissioning without replacing the cylinder.
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