Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75S
The AirTAC SAIJ200X800-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 75 mm. This yields a usable 725-800 mm travel window, letting you dial in the exact end position during commissioning without swapping the barrel or adding external stops. As the largest bore in the series, it delivers massive thrust, pushing 28274 N at 0.9 MPa and pulling 15080 N at 0.5 MPa.
This unit includes a -S magnet for position sensing with AirTAC CMSE reed and DMSE solid-state switches fitted into the dual-side sensor grooves. The piston rod is SUS420J2 stainless steel (code A) for corrosion resistance, and the fluid port uses a PT tapered thread. The rear adjuster acts purely as a mechanical stop for deceleration; it does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAIJ200AX800-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SAIJ200AX800-75S Is Used
Heavy Press Tuning
Fine-tune the 725-800 mm stroke end-stop on large presses to accommodate varying material thicknesses without changing the cylinder setup.
Large Machine Changeover
Adjust the retract position by up to 75 mm during product size changeovers on heavy-duty production lines to minimize downtime.
Long-Stroke Guiding
Handle massive loads over an 800 mm travel distance, relying on external guides to manage side-load while the cylinder provides 28274 N of thrust.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-75S the Right Cylinder?
Select this 200 mm bore when your application demands the highest force class, requiring up to 3204 kgf at 1.0 MPa. If you need less push force, stepping down to the 160 mm bore yields 18095 N at 0.9 MPa, which might better suit medium-heavy loads without oversizing. The adjustable 75 mm window is ideal for product changeovers on large machinery, whereas a fixed SAI cylinder would require physical spacers for each new setup.
Because the stroke is 800 mm, the long unsupported rod is susceptible to side loads; always use an external guide to prevent binding. To replace this cylinder on an ISO 15552 footprint, match the 200 mm bore, 800 mm stroke, 75 mm adjustment, PT port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting. Remember that the air cushion and rear stopper only manage travel ends, not load holding; for true pneumatic locking without live air, specify an SAIL or BSAI series cylinder.
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 SAIJ200AX800-75S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 800 mm stroke by up to 75 mm, providing a usable travel window of 725 to 800 mm. It only sets the travel end and does not lock the load without live air pressure.
At 0.9 MPa, the push force is 28274 N and the pull force is 22680 N. At the maximum operating pressure of 1.0 MPa, it can generate a push force of up to 3204 kgf.
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