Airtac SAIJ200 Adjustable Cylinder SAIJ200X120-100S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200X120-100S 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 SAIJ200X120-100S
The AirTAC SAIJ200X120-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 20 to 120 mm, allowing you to dial back the nominal 120 mm stroke by up to 100 mm during machine commissioning. Belonging to the 200 mm bore class, it delivers up to 15708 N of push force at 0.5 MPa and 28274 N at 0.9 MPa, making it suited for heavy-duty pressing and positioning.
This unit includes a standard carbon steel rod and a -S magnet for position sensing. The extruded aluminum barrel features sensor grooves on both sides, seamlessly accepting AirTAC CMSE reed and DMSE electronic solid-state switches. Unlike fixed-stroke SAI models, this rear stopper mechanism lets you fine-tune end positions without swapping the cylinder or adding external stops. Note that the adjuster acts purely as a travel stop; it does not lock the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X120-100S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X120-100S |
|---|---|
| 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 SAIJ200X120-100S
| 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 SAIJ200X120-100S Is Used
Heavy Press Tuning
Dial in the exact 20 to 120 mm closure distance during heavy assembly operations, allowing precise end-position tuning without machining new hard stops.
Product Size Changeover
Quickly adapt a large-format production line to different material thicknesses by rotating the rear adjuster screw to shorten the effective stroke.
Variable End-Stop Positioning
Set distinct retract positions for multi-stage heavy lifting processes, leveraging the 100 mm adjustment range to modify the endpoint on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X120-100S the Right Cylinder?
Choose this 200 mm bore cylinder when an application demands immense thrust—up to 15708 N at just 0.5 MPa—and highly variable end-stops. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N at 0.5 MPa, which may save space and air consumption. The SAIJ200X120-100-S is selected specifically for setups requiring frequent product changeovers, where turning the rear screw adjusts the travel window from 20 to 120 mm on the fly.
For ISO 15552 replacement matching, verify a 200 mm bore, 120 mm stroke, 100 mm adjustment range, PT tapered port threads, and the -S magnet option. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 120 mm stroke is relatively short for this massive bore, side-load concerns are minimal, but the 40 mm rod and M36x2 thread provide excellent rigidity. Remember that for fail-safe load holding without live air, you must look to the SAIL (air-released lock) or BSAI (clamp-lock) series, as the adjuster here is not a brake.
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 SAIJ200X120-100S FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.9 MPa, the push force increases to 28274 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 120 mm nominal stroke by up to 100 mm, creating a usable travel window of 20 to 120 mm. It functions as a travel stop for end-position tuning and does not lock the load without continuous air pressure.
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