Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-40S
The AirTAC SAIJ200X275-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 275 mm travel by up to 40 mm for a precise 235-275 mm usable window. Built with a SUS420J2 stainless steel rod and PT tapered ports, it delivers massive thrust, pushing with 15708 N and pulling with 15080 N at 0.5 MPa. The extruded aluminum barrel features sensor grooves on both sides to house CMSE reed or DMSE electronic switches.
Because the rear adjuster acts purely as a mechanical stop, it decelerates the end-of-travel position but cannot hold a load without live air pressure. For true fail-safe load holding, you would need an external pilot-operated check valve or a related AirTAC series like SAIL or BSAI. The 40 mm carbon steel piston rod and M36x2 thread provide a robust interface, though strokes of this length still require an external guide to manage side loading.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 275 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 SAIJ200AX275-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×275 | 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 SAIJ200AX275-40S Is Used
Heavy Press Fit
Dial in the exact 235-275 mm end position for heavy press-fit assemblies, adapting to material thickness variations without changing the cylinder.
Line Changeover
Quickly reconfigure the end-stop for different product sizes on a high-thrust conveyor line during production changeovers.
Machine Setup
Fine-tune the retract stroke during initial machine commissioning to perfect timing, avoiding the need to machine custom spacers.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX275-40S the Right Cylinder?
Choose this 200 mm bore when the 160 mm class (pushing 10053 N at 0.5 MPa) is insufficient for your heavy form-press or lift application. An adjustable stroke is selected over a fixed SAI cylinder when you need in-field commissioning fine-tuning or rapid product changeovers without physically swapping the actuator or bolting on external stops.
When integrating this ISO 15552 interchangeable profile cylinder, match your hardware to the PT port threading and the M36x2 rod. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Keep in mind the 30-500 mm/s speed range for large bores, and ensure an external guide supports the rod to prevent binding over the 275 mm travel.
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 SAIJ200AX275-40S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. It can reach a maximum push of 21991 N at 0.7 MPa.
The rear adjuster screw lets you shorten the 275 mm nominal stroke by up to 40 mm, creating a usable travel window of 235 to 275 mm. It acts as a mechanical stop to set the end position but does not lock the load without continuous air pressure.
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