Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50S
The AirTAC SAIJ200X75-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 200 mm bore and a 75 mm nominal stroke, which the rear stopper trims back by up to 50 mm, yielding a highly flexible 25 to 75 mm usable travel window. This specific configuration includes a SUS420J2 stainless steel rod (code A) and PT tapered ports.
Delivering immense thrust, it generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, peaking at 3204 kgf at 1.0 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it supports position detection using AirTAC CMSE reed switches or DMSE solid-state electronic sensors.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAIJ200AX75-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SAIJ200AX75-50S Is Used
Heavy Press Tunning
Dial in the exact 25 to 75 mm travel window during machine commissioning to precisely set heavy-duty pressing depths without adding external stopper blocks.
Product Size Changeover
Quickly adapt a high-force assembly line to different product lengths by adjusting the rear stopper screw up to 50 mm instead of replacing the entire cylinder.
Variable End-Stop Forming
Utilize the 3204 kgf maximum thrust for metal forming or bending applications where the material deformation depth must be fine-tuned on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-50S the Right Cylinder?
Selecting this 200 mm bore model is appropriate when an application requires extreme force combined with variable end-position tuning. If you need less thrust, stepping down to the 160 mm bore yields 10053 N of push force at 0.5 MPa, which might better suit medium-duty tasks. The 50 mm adjustment range on this SKU is ideal for product-size changeovers on a line, allowing operators to dial in the exact 25 to 75 mm travel without physically swapping the cylinder.
Because the 75 mm nominal stroke is relatively short, internal side-loading stress is minimized, though the robust 40 mm rod and M36x2 thread handle substantial loads. Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither will hold a load without live air pressure. For true load-holding, consider an external rod lock or AirTAC SAIL/BSAI series cylinders. This adjustable model uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
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 SAIJ200AX75-50S FAQ
The rear adjuster screw acts as a mechanical stop that shortens the effective stroke. For this model, the 75 mm nominal stroke can be dialed back by up to 50 mm, providing a usable travel window of 25 to 75 mm. The adjuster only sets the end position; it does not lock or hold the load without continuous air pressure.
At a 0.5 MPa operating pressure, this cylinder provides 15708 N of push force and 15080 N of pull force. At its maximum rated pressure of 1.0 MPa, it delivers an immense 3204 kgf of push force.
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