Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-100S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X425-100S 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 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 SAIJ200X425-100S
The AirTAC SAIJ200X425-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 325 to 425 mm, letting you dial back the nominal 425 mm stroke by up to 100 mm during commissioning. Belonging to the 200 mm bore class, it generates massive thrust, pushing with 21991 N and pulling with 15080 N at 0.7 MPa. The standard carbon steel rod features an M36x2 thread, providing a robust interface for heavy-duty tooling.
This unit includes a -S magnet for position sensing and is compatible with AirTAC CMSE reed and DMSE electronic solid-state switches mounted in the dual-side sensor grooves. It uses PT tapered G3/4 ports and operates at speeds of 30-500 mm/s. The extruded aluminum barrel design relies on an integrated profile rather than external tie-rods, and the rear adjuster functions purely as a mechanical stop to set the retract end position without holding the load statically.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-100S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-100S |
|---|---|
| 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 | 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 SAIJ200X425-100S
| 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 SAIJ200X425-100S Is Used
Heavy Press Tuning
Dial in the exact 325 to 425 mm retract position during heavy press commissioning to accommodate varying material thicknesses without adding external stops.
Product Line Changeover
Rapidly adjust the end-stop position on a high-force assembly line when switching between product sizes, leveraging the 100 mm adjustment window.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-100S the Right Cylinder?
Selecting this 200 mm bore model is ideal when your application requires maximum force, such as pushing 28274 N at 0.9 MPa, combined with the flexibility to fine-tune the end-stop on the fly. The adjustable stroke is chosen over a fixed SAI cylinder when machine setups require variable end positions or product-size changeovers without physically swapping out the actuator.
For an ISO 15552 replacement match, verify the 425 mm stroke, 100 mm adjustment range, G3/4 PT ports, and the -S magnet option. Because the 425 mm stroke is substantial, the heavy 40 mm rod diameter handles high side loads, but an external guide is still recommended to prevent rod binding over long unsupported travel. Remember that the rear adjuster is a travel stop, not a lock; the SAIJ does not hold position without live air, so for load-holding requirements, consider an AirTAC SAIL or BSAI series cylinder instead. 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 SAIJ200X425-100S FAQ
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from 425 mm down to as little as 325 mm. It sets the end position and deceleration point but does not lock the load statically without live air pressure.
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