Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- 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 SAIJ200BX400-40S
The AirTAC SAIJ200X400-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 360 to 400 mm, allowing you to dial back the nominal stroke by up to 40 mm during commissioning. Built for heavy-duty tasks, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports CMSE reed and DMSE electronic solid-state switches for precise position detection.
This model uses a SUS304 stainless steel rod for superior corrosion resistance and features a PT tapered port thread. The rear adjuster functions strictly as a travel stop to fine-tune the end position without swapping cylinders, but it does not lock the load without live air pressure. For applications requiring true load-holding, an external rod lock or the AirTAC SAIL series is recommended.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40S |
|---|---|
| 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 | 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 SAIJ200BX400-40S
| 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 SAIJ200BX400-40S Is Used
Heavy Press Tuning
Dial in the exact 360 to 400 mm contact depth on heavy stamping presses during setup, ensuring precise material deformation without changing the cylinder.
Product Changeover Stops
Adjust the end-stop position by up to 40 mm on packaging conveyors to accommodate different package lengths quickly and efficiently.
Large Assembly Fixtures
Fine-tune the clamping travel on large automotive assembly fixtures, using the SUS304 rod for durability in demanding, repeat-use environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40S the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires massive thrust, such as 15708 N at 0.5 MPa, and on-the-fly end-position tuning. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which might optimize energy use. The 40 mm adjustment range is ideal for product changeovers where the exact end-of-stroke contact point varies slightly, eliminating the need to bolt on external stops or replace a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 400 mm stroke, PT port thread, and the -S magnet requirement. Because the total stroke is 400 mm, the M36x2 rod and 50 mm cushion length must manage significant kinetic energy; always use an external guide to prevent side-loading damage on long unsupported strokes. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR configurations.
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 SAIJ200BX400-40S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can deliver a maximum of 3204 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective travel from 400 mm down to 360 mm. This enables fine-tuning of the end position during commissioning, but it does not hold the load without continuous air pressure.
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