Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-30
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X400-30 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-30
The AirTAC SAIJ200X400-30 is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty applications. It features a rear stroke adjuster that creates a 370-400 mm usable travel window, allowing you to dial back the 400 mm nominal stroke by up to 30 mm during commissioning.
Because the adjuster acts purely as a mechanical stop at the retract end, it does not hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed and DMSE electronic switches. Sealed with standard TPU and rated for 30-500 mm/s speeds, this cylinder uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-30 |
|---|---|
| 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-30
| 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 SAIJ200X400-30 Is Used
Heavy Press Tuning
Fine-tune the exact bottoming position of a 15708 N pressing motion during setup, using the 30 mm rear stopper to compensate for tooling tolerances without external shims.
Product Size Changeover
Quickly adjust the retract end-stop within the 370-400 mm window when switching a packaging line to a new carton depth, saving downtime on physical cylinder replacement.
Large Assembly Jigs
Position heavy structural components on an assembly line, relying on the 40 mm carbon steel rod and robust profile barrel to handle high side-load forces with an external guide.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X400-30 the Right Cylinder?
The adjustable stroke is ideal for product changeovers where exact end-position tuning is required without swapping the cylinder or adding external stops.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 400 mm stroke, PT tapered port threads, and the 30 mm adjustment code. For strokes of 400 mm or more, the long unsupported piston rod is susceptible to side loading; always use an external guide to prevent premature wear. If you need true load-holding without live air pressure, this standard adjuster will not suffice—consider the SAIL air-released lock or BSAI clamp-lock series instead.
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 SAIJ200X400-30 FAQ
If you increase the operating pressure to 0.7 MPa, the push force rises to 21991 N.
The rear adjuster acts as a mechanical stop that lets you trim the 400 mm nominal stroke back by up to 30 mm, creating a 370-400 mm usable travel window. It only sets the end position and does not lock or hold the load without live air pressure.
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