Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-30S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X425-30S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke425 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 SAIJ200X425-30S
The AirTAC SAIJ200X425-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty pneumatics. The integrated -S magnet enables position feedback via CMSE reed or DMSE electronic solid-state sensors housed in the dual-side extruded aluminum barrel grooves.
This model provides a 395-425mm usable travel window, allowing you to trim the 425mm nominal stroke by up to 30mm during commissioning. The carbon steel rod features an M36x2 thread, and the cylinder uses PT tapered ports. The rear screw acts purely as a travel stop for end-position tuning and relies on variable air cushions at both ends for deceleration.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-30S |
|---|---|
| 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 | 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 SAIJ200X425-30S
| 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 SAIJ200X425-30S Is Used
Heavy Press Tuning
Dial in the exact 395-425mm end-stop during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Product Changeover
Adjust the retract position on the fly for different pallet sizes on a high-thrust conveyor line, utilizing the 30mm trim window.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-30S the Right Cylinder?
The adjustable stroke is chosen over a fixed SAI cylinder when you need to fine-tune the end position during machine setup or product changeover without adding external stops. For a 425mm stroke, the M36x2 carbon steel rod handles substantial loads, but an external guide is recommended to prevent excessive side-loading on long unsupported travel.
To replace an ISO 15552 cylinder, match the 200mm bore, 425mm stroke, 30mm adjustment, PT port thread, and -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear adjuster is a stop, not a lock; if the load must be held without live air pressure, use an AirTAC SAIL or BSAI cylinder.
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 SAIJ200X425-30S FAQ
The rear adjuster screw allows you to shorten the 425mm nominal stroke by up to 30mm, creating a 395-425mm usable travel window. The adjuster acts as a mechanical stop for end-position tuning and does not lock the load without live air.
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Standard models are processed and dispatched in 3-5 business days.
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