Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-75S
The AirTAC SAIJ200X270-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 195 to 270 mm. Built with a 200 mm bore, it delivers robust thrust up to 15708 N at 0.5 MPa, making it suitable for heavy-duty operations. The extruded aluminum barrel features sensor grooves on both sides, and this unit includes a magnet for precise position detection using CMSE reed or DMSE electronic switches.
This model features a SUS420J2 stainless steel rod for enhanced corrosion resistance and utilizes PT tapered port threads. The rear adjustment screw acts as a mechanical stop to fine-tune the retract end position during commissioning or product changeover without adding external stops. It is important to note that this adjuster only sets the travel end and does not hold the load without live air pressure; for load-holding requirements, an external rod lock or the SAIL series is recommended.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 270 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 SAIJ200AX270-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×270 | 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 SAIJ200AX270-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within a 195-270 mm window during machine commissioning to accommodate varying product sizes without swapping cylinders.
Heavy-Duty Forming
Leverage the 15708 N push force at 0.5 MPa for heavy pressing or forming tasks, using the rear stopper to precisely limit the travel end and prevent over-travel.
Product Changeover Systems
Quickly adjust the stroke length by up to 75 mm on packaging or material handling lines when switching to different product formats, ensuring minimal downtime.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-75S the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires substantial force, stepping up from the 160 mm bore which provides 10053 N of push force at 0.5 MPa. The adjustable stroke is ideal for machinery that requires variable end-stops or fine-tuning during setup, offering greater flexibility than a fixed-stroke SAI cylinder. With a 270 mm stroke, the 40 mm rod diameter and M36x2 thread provide high rigidity, but because the stroke is 270 mm, an external guide is recommended to handle side loads and prevent rod deflection.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 270 mm stroke, up to 75 mm adjustment range, PT G3/4 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR configurations. Remember that the rear adjuster and variable air cushions manage deceleration, not load holding; for true locking without live pressure, explore the BSAI clamp-lock series.
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 SAIJ200AX270-75S 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 a maximum push force of 28274 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke by up to 75 mm from the 270 mm nominal length, creating a 195-270 mm travel window. It sets the end position but does not lock or hold the load without continuous air pressure.
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