Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 140mm 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
- Stroke140 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 SAIJ200BX140-40S
The AirTAC SAIJ200X140-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 100-140 mm. Built for heavy-duty tasks, it delivers a substantial push force of 15708 N at 0.5 MPa and reaches a maximum of 3204 kgf at 1.0 MPa. The extruded aluminum barrel features sensor grooves on both sides for straightforward detection mounting.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and a magnet for use with CMSE reed or DMSE electronic solid-state sensors. The rear stopper screw lets you fine-tune the retraction end-position during commissioning without adding external stops. Note that this adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 140 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 SAIJ200BX140-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×140 | 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 SAIJ200BX140-40S Is Used
Heavy Machinery Setup
Fine-tune the 100-140 mm retraction end-stop during heavy machinery commissioning to achieve precise positioning without machining external stopper blocks.
Product Size Changeovers
Quickly adapt a production line for different product sizes by dialing the rear adjuster up to 40 mm, accommodating variations without changing the cylinder.
High-Force Positioning
Leverage the 15708 N push force at 0.5 MPa to move and position heavy fixtures, using the SUS304 rod to withstand harsh or washdown environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-40S the Right Cylinder?
Choose this 200 mm bore when an 80 mm bore (delivering 2513 N push at 0.5 MPa) is insufficient for moving heavy masses. The adjustable 40 mm window is ideal for product changeovers on a line, allowing you to dial in the exact end-stop without swapping the cylinder for a fixed-stroke SAI model. If your application requires the load to be held mechanically without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder instead of relying on the rear adjuster.
For an exact ISO 15552 replacement match, verify the 200 mm bore, 140 mm nominal stroke, 40 mm adjustment range, PT tapered port threads, and the -S magnet option. Because the nominal stroke is 140 mm, side-load stress is minimal, but the 40 mm diameter rod and M36x2 thread provide excellent rigidity and side-load capacity if the load is offset.
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 SAIJ200BX140-40S FAQ
The rear adjuster acts as an external stopper that lets you trim the effective stroke back by up to 40 mm. This creates a usable travel window of 100-140 mm, allowing you to set the exact retraction end-position during commissioning without replacing the cylinder.
At 0.5 MPa, it provides a push force of 15708 N and a pull force of 15080 N. At the maximum operating pressure of 1.0 MPa, the push force reaches 3204 kgf.
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