Airtac SAIJ200 Adjustable Cylinder SAIJ200BX120-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX120-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 120mm 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
- Stroke120 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 SAIJ200BX120-50S
The AirTAC SAIJ200X120-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N push and 15080N pull at 0.5 MPa. The integrated -50 mm adjustment mechanism allows you to dial back the 120 mm nominal stroke, providing a real usable travel window of 70 to 120 mm for exact end-position tuning during commissioning. This unit includes a SUS304 stainless steel rod for superior corrosion resistance and a magnetic piston for CMSE and DMSE sensors.
Because the rear screw acts purely as a mechanical stop to set the travel end, it does not hold the load without live air pressure. For load-holding without continuous air, you would need an external rod lock or a related AirTAC series like the SAIL or BSAI. The extruded aluminum barrel features sensor grooves on both sides, and the PT tapered G3/4 ports ensure high flow for heavy-duty motion control.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX120-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX120-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 120 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 SAIJ200BX120-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×120 | 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 SAIJ200BX120-50S Is Used
Heavy-Duty Press Tuning
Dial in the exact 70-120 mm travel end during press commissioning to accommodate varying material thicknesses without replacing the cylinder.
Product Line Changeover
Rapidly adjust the retract end-stop for different product sizes on a conveyor line, using the 50 mm trim range to hit new positions instantly.
Large Assembly Jigs
Leverage 15708N of thrust at 0.5 MPa to seat heavy components, relying on the SUS304 rod for durability in industrial manufacturing environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX120-50S the Right Cylinder?
Choose this 200 mm bore when 160 mm falls short—offering 10053N push at 0.5 MPa compared to this model's 15708N. The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers without physically swapping the cylinder or adding external stops. When matching an ISO 15552 replacement, verify the 120 mm stroke, 50 mm adjuster, G3/4 PT ports, Basic/LB/TC mounting options (omitting FB/CA/CB/CR), and the -S magnet. Although the 40 mm rod and M36x2 thread handle high side loads, long unsupported strokes over 300 mm require an external guide.
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 SAIJ200BX120-50S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708N of push force and 15080N of pull force. It can reach a maximum push force of 3204 kgf at 1.0 MPa.
The rear adjuster screw lets you mechanically shorten the 120 mm nominal stroke by up to 50 mm, creating a usable travel window of 70 to 120 mm. It functions as a travel stop to fine-tune the end position, not as a lock to hold the load without air.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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