Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X270-40S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke270 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 SAIJ200X270-40S
The AirTAC SAIJ200X270-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, pushing with 15708 N and pulling with 15080 N at 0.5 MPa, making it suited for heavy-duty industrial handling. The integrated -40 mm adjustment mechanism allows you to dial back the nominal 270 mm stroke, creating a precise 230 to 270 mm usable travel window without needing external stops.
This variant includes a magnetic piston (-S) for position sensing and uses a standard carbon steel rod with PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides, accepting AirTAC CMSE reed and DMSE electronic solid-state switches to track the carriage across its adjusted path. It relies on variable air cushions at both ends to decelerate the large 40 mm rod and high moving masses smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40S |
|---|---|
| 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40S
| 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 SAIJ200X270-40S Is Used
Heavy Press Tuning
Fine-tune the exact bottoming position of a large forming press within the 230-270 mm window during initial commissioning without swapping cylinders.
Product Size Changeover
Quickly adapt a heavy-duty automated line to accommodate different product lengths by dialing the rear stopper back by up to 40 mm.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X270-40S the Right Cylinder?
Select this 200 mm bore actuator when an application requires extreme force alongside variable end-position tuning, such as setting up a heavy press or accommodating product-size changes on a line. Conversely, if you need to hold a load securely without live air pressure, this cylinder is not a lock; the rear adjuster is strictly a travel stop, so you would need to specify an AirTAC SAIL or BSAI lock variant instead.
Because the 270 mm stroke is substantial, the heavy piston and rod assembly will generate significant side loads if the external load is not properly guided. Ensure your machinery uses a dedicated linear guide to prevent binding. For a direct ISO 15552 replacement, match the 200 mm bore, 270 mm stroke, -40 adjustment, PT port thread, and -S magnet configuration. Mounting choices are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200X270-40S FAQ
At its maximum operating pressure of 1.0 MPa, it can deliver up to 3204 kgf of push force.
The rear adjuster acts as an external stopper that allows you to shorten the effective travel from the 270 mm nominal stroke down to a minimum of 230 mm. This provides a 40 mm tuning window to set precise end positions without changing the cylinder or adding external stops.
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