Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 125mm 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
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-30S
The AirTAC SAIJ200X125-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 125 mm nominal travel by up to 30 mm. This creates a 95-125 mm usable stroke window, enabling precise end-position tuning at commissioning without swapping the barrel or adding external stops. It delivers massive thrust, pushing 21991 N and pulling 15080 N at 0.7 MPa.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for solid-state DMSE or reed CMSE position sensing. The extruded aluminum barrel includes sensor grooves on both sides. Mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting FB, CA, CB, and CR brackets to streamline the adjustable rear housing design.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 125 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 SAIJ200AX125-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×125 | 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 SAIJ200AX125-30S Is Used
Heavy Press Fine-Tuning
Dial in the exact 95-125 mm end position during heavy press commissioning to accommodate material thickness variations without machining custom spacers.
Automated Line Changeover
Adjust the retract stop on the fly when switching a high-force production line to a new product size, using the 30 mm adjustment range to set new datum points.
Large Mold Handling
Position heavy molds precisely within the 125 mm travel window, leveraging the 21991 N push force and SUS420J2 stainless rod to resist harsh industrial environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-30S the Right Cylinder?
Choose this 200 mm bore when your application requires extreme force, such as the 21991 N push at 0.7 MPa, and you need the flexibility to fine-tune the retract distance on the fly. If you need less force, stepping down to a 160 mm bore yields 14074 N of push force at 0.5 MPa, which might be sufficient and save space. The PT tapered port and G3/4 thread size match the high flow demands of this large bore.
The rear adjuster acts solely as a mechanical travel stop for deceleration and positioning; it does not hold the load without live air. If your application requires true fail-safe load holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead. Because the nominal stroke is 125 mm, an external guide is not strictly required for side-load support, but the 40 mm rod diameter handles significant lateral stress if minor misalignment occurs.
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 SAIJ200AX125-30S FAQ
The rear adjusting screw acts as a mechanical stopper that can shorten the effective stroke by up to 30 mm. This gives you a usable travel window of 95-125 mm, allowing you to fine-tune the end position without replacing the cylinder.
At a standard operating pressure of 0.7 MPa, the SAIJ200X125-30-S generates a push force of 21991 N and a pull force of 15080 N. At its maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf of push force.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200AX125-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.