Airtac SAIJ200 Adjustable Cylinder SAIJ200BX425-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX425-40S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- 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 SAIJ200BX425-40S
The AirTAC SAIJ200X425-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, providing 15708 N push force and 15080 N pull force at 0.5 MPa. The integrated -S magnet allows seamless positioning feedback using AirTAC CMSE reed or DMSE electronic solid-state sensors housed within the dual-side sensor grooves.
This specific SKU features a 425 mm nominal stroke that can be dialed back by up to 40 mm, creating a precise 385-425 mm usable travel window. Built with a SUS304 stainless steel rod (code B) for superior corrosion resistance, it utilizes PT tapered ports and omits the FB, CA, CB, and CR mounting options, supporting only Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX425-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX425-40S |
|---|---|
| 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 | 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 SAIJ200BX425-40S
| 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 SAIJ200BX425-40S Is Used
Heavy Press Tuning
Dial in the exact 385-425 mm end position during machine commissioning to accommodate different material thicknesses without external physical stops.
Product Changeover
Quickly adjust the retract distance on a packaging line to handle varying pallet sizes, leveraging the 40 mm adjustment range for rapid setup.
Corrosive Assembly
Utilize the SUS304 stainless steel rod to push heavy components into place in humid or washdown environments while maintaining precise stroke limits.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX425-40S the Right Cylinder?
Select this 200 mm bore cylinder when an application requires extreme force alongside variable end-stop positioning, stepping up significantly from a 160 mm bore that offers 10053 N push at 0.5 MPa. The rear adjuster allows you to fine-tune the retract position during commissioning or product changeovers without swapping the cylinder or adding external stops. Because the stroke is 425 mm, the heavy M36x2 threaded rod requires external guiding to prevent excessive side-loading and premature seal wear.
For ISO 15552 replacement matching, verify the 200 mm bore, 425 mm stroke, 40 mm adjustment range, PT port thread, and the -S magnet requirement. Remember that the rear adjuster functions strictly as a travel stop, not a lock; the SAIJ cannot hold a load without live air pressure. For true load-holding, consider an external rod lock, a pilot-operated check valve, or the AirTAC SAIL and BSAI clamp-lock variants.
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 SAIJ200BX425-40S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At the maximum 1.0 MPa pressure, it achieves a push force of 28274 N.
The rear adjusting screw acts as a mechanical stopper that shortens the effective stroke. For this SAIJ200X425-40-S model, you can trim the 425 mm nominal stroke back by up to 40 mm, providing an adjustable travel window between 385 mm and 425 mm.
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