Airtac SAIJ200 Adjustable Cylinder SAIJ200AX150-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX150-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 150mm 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
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX150-20
The AirTAC SAIJ200X150-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 150 mm nominal travel to a precise 130-150 mm window during commissioning. It delivers massive thrust, pushing 21991 N at 0.7 MPa and pulling 15080 N, making it suitable for heavy-duty pressing and clamping. The extruded aluminum barrel features sensor grooves on both sides, though this unit ships without a magnet.
This heavy 200 mm bore variant incorporates a robust 40 mm piston rod with an M36x2 thread, paired with 50 mm air cushions at both ends to manage kinetic energy. The rod is constructed from SUS420J2 stainless steel (A option) for enhanced corrosion resistance, and air connections use PT tapered threads (G3/4 port). The rear stopper mechanism fine-tunes the retract position without requiring external stops, but remember it acts only as a travel limiter and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX150-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX150-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAIJ200AX150-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×150 | 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 SAIJ200AX150-20 Is Used
Heavy-Duty Press Tuning
Dial in the exact 130-150 mm retract distance during machine setup to accommodate varying material thicknesses without changing the cylinder.
Automated Line Changeover
Quickly adjust the end-stop position on a production line when switching between different product sizes, saving downtime on mechanical modifications.
Industrial Forming Stops
Use the rear stopper to set precise forming depths on heavy metal components, relying on the 21991 N push force at 0.7 MPa for deformation.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX150-20 the Right Cylinder?
Select this 200 mm bore model when an application requires extreme force, as stepping down to a 160 mm bore drops the 0.5 MPa push force from 15708 N to 10053 N. The adjustable 130-150 mm travel window is ideal for product changeovers where exact end-position tuning is necessary without physically swapping the cylinder. For load-holding without continuous air pressure, this cylinder is insufficient because the rear adjuster is a stop, not a lock; consider the SAIL or BSAI series instead. To replace an ISO 15552 cylinder, match the 200 mm bore, 150 mm stroke, 20 mm adjustment, PT G3/4 port, and SUS420J2 rod material.
Because the stroke is 150 mm, side-load risks are moderate, but the 40 mm rod diameter helps carry higher bending loads. Even with the large rod, long unsupported strokes still need an external guide to prevent premature seal wear. Operating speed is capped at 30-500 mm/s due to the large piston mass.
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 SAIJ200AX150-20 FAQ
The rear external adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 20 mm. This creates a 130-150 mm usable travel window for fine-tuning the end position at commissioning without adding external stops.
At an operating pressure of 0.7 MPa, it provides a push force of 21991 N and a pull force of 15080 N. At 0.9 MPa, the push force increases to 28274 N.
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