Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-20 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 SAIJ200BX140-20
The AirTAC SAIJ200X140-20 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, delivering a substantial push force of 15708 N at 0.5 MPa. It features a robust 40 mm piston rod and operates efficiently within a speed range of 30-500 mm/s. This model incorporates a rear stroke adjuster that creates a usable travel window of 120-140 mm, allowing precise end-position tuning without swapping out the entire unit.
Equipped with a SUS304 stainless steel rod (option B) and PT tapered ports, this extruded aluminum cylinder is built for demanding environments. The rear adjuster functions strictly as a mechanical stop to set the retraction end point and relies on the integrated air cushion for deceleration; it does not hold the load without continuous live air pressure. For applications requiring true load-holding, external pilot-operated check valves or an AirTAC SAIL lock cylinder are required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-20 |
|---|---|
| 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 SAIJ200BX140-20
| 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 SAIJ200BX140-20 Is Used
Heavy Press Tuning
Dial in the exact 120-140 mm retraction point during machine commissioning to accommodate different material thicknesses without adding external mechanical stops.
Product Size Changeover
Quickly adjust the end-stop on a production line handling large assemblies, utilizing the 20 mm trim range to switch between product variants efficiently.
Heavy Load Positioning
Move substantial loads using the 15708 N push force, relying on the 40 mm SUS304 rod for durability while setting precise physical endpoints.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX140-20 the Right Cylinder?
Selecting this 200 mm bore cylinder is ideal when your application demands extremely high thrust, such as 15708 N push at 0.5 MPa, and requires on-the-fly stroke trimming within a 120-140 mm window. If your force requirements are lower, stepping down to a 160 mm bore provides 10053 N of push force at 0.5 MPa, which may offer a more compact footprint. Conversely, if you need fixed travel without end-stop tuning, a standard AirTAC SAI cylinder is a simpler choice.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 140 mm nominal stroke, 20 mm adjustment range, PT port threads, and your desired mounting style. SAIJ supports a specific subset of mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Because this cylinder lacks a magnet, it cannot host CMSE or DMSE sensors without modifying the configuration.
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 SAIJ200BX140-20 FAQ
At a standard operating pressure of 0.5 MPa, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster acts as a mechanical stop that trims the effective travel, providing a usable stroke window of 120-140 mm from the 140 mm nominal length. It sets the end position and works with the air cushion for deceleration, but it does not lock or hold the load without live air pressure.
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