Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-20S 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 SAIJ200AX75-20S
The AirTAC SAIJ200X75-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 55-75 mm usable travel window, letting you trim the nominal 75 mm stroke by up to 20 mm during commissioning. Delivering 15708 N of push force at 0.5 MPa, this bore 200 unit handles heavy loads while utilizing a SUS420J2 stainless steel rod for enhanced corrosion resistance.
This model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting. Unlike a fixed-stroke SAI, the external rear stopper fine-tunes the end position without requiring external stops or cylinder swaps.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-20S |
|---|---|
| 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 SAIJ200AX75-20S
| 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 SAIJ200AX75-20S Is Used
Product Changeovers
Dial in the 55-75 mm travel window on the fly to accommodate different product sizes without swapping out the entire cylinder assembly.
Heavy Press Fitment
Leverage the 15708 N push force to seat heavy components, using the rear adjuster to prevent over-travel and ensure precise insertion depth.
Machine Setup Tuning
Fine-tune the end-stop during initial commissioning to perfectly sync the cylinder's stroke with adjacent machine timing and mechanical hard stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX75-20S the Right Cylinder?
Choose this 200 mm bore cylinder when an application demands substantial thrust, such as 15708 N push at 0.5 MPa, alongside precise end-position tuning. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force. The adjustable 55-75 mm travel window is perfect for product changeovers, but remember the rear adjuster acts only as a travel stop. It does not hold the load without live air; for true load-holding, consider an AirTAC SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 75 mm stroke, 20 mm adjustment, PT tapered port threads, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Although the stroke is short, the 40 mm rod and M36x2 thread provide robust side-load capacity, yet an external guide remains essential for heavy radial loads.
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 SAIJ200AX75-20S 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 31992 N at 1.0 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from the nominal 75 mm down to 55 mm. This provides a 55-75 mm usable travel window for fine-tuning without needing live air to hold the position.
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