Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20S 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
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20S
The AirTAC SAIJ200X140-20-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks requiring exact end-position tuning. Its rear adjuster screw provides a 20 mm correction range, establishing a usable travel window between 120 and 140 mm. This allows operators to dial in the retract stop during commissioning without adding external physical stops or swapping hardware. Delivering 15708 N of push force at 0.5 MPa, it is built for substantial loads.
This variant features a SUS420J2 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel includes sensor grooves on both sides, and fluid supply is via a G3/4 PT tapered port. The rear stopper manages travel deceleration alongside the variable air cushions, but it does not lock the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20S |
|---|---|
| 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 SAIJ200AX140-20S
| 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 SAIJ200AX140-20S Is Used
Heavy Press Tuning
Dial in the exact 120-140 mm retract position on a large press during product changeover without installing external stopper blocks.
Assembly Line Setup
Adjust the end-stop on the fly to accommodate varying large-component sizes on an automated assembly conveyor.
Machine Commissioning
Fine-tune the travel end position during initial machine setup to perfectly time heavy-duty indexing movements.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX140-20S the Right Cylinder?
Select this 200 mm bore actuator when an application demands high thrust, generating up to 15708 N push at 0.5 MPa, combined with a variable end-stop for product changeovers. If your process requires less force, stepping down to the 160 mm bore yields 10053 N at 0.5 MPa, which may better suit medium machinery. The adjustable stroke is chosen over a fixed SAI cylinder when you need to fine-tune the retract position at setup. For load-holding without continuous air pressure, this cylinder is insufficient; the rear adjuster is a travel stop, not a lock, so you should explore an external rod lock or the AirTAC SAIL series. To match this ISO 15552 footprint, specify the 200 mm bore, 140 mm stroke, 20 mm adjustment, G3/4 PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and the -S magnet.
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 SAIJ200AX140-20S 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 reach up to 3204 kgf at its maximum 1.0 MPa pressure.
The rear adjuster screw lets you shorten the nominal 140 mm stroke by up to 20 mm, creating a usable travel window of 120 to 140 mm. This stopper only sets the end position; it does not hold the load without live air pressure.
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