Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30S
The AirTAC SAIJ200X50-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 20 to 50 mm for precision end-position tuning. Built with an extruded aluminum barrel and an SUS420J2 stainless steel piston rod (code A), it handles massive thrust values up to 15708 N at 0.5 MPa and 21991 N at 0.7 MPa. The integrated -S magnet supports position sensing via CMSE reed or DMSE electronic switches along the dual sensor grooves.
This model uses a PT G3/4 port and offers a 30-500 mm/s operating speed range. The defining feature is the external rear adjusting screw, which allows you to dial back the nominal 50 mm stroke by up to 30 mm without swapping the cylinder or adding external stops. The adjuster acts purely as a travel stop and works in tandem with the variable air cushions at both ends to decelerate the load.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 50 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 SAIJ200AX50-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SAIJ200AX50-30S Is Used
Heavy Press Changeovers
Dial in the exact 20-50 mm travel window during product size transitions without physically replacing the cylinder or re-engineering external stop blocks.
Variable End-Stop Setup
Fine-tune the retraction end-position at machine commissioning using the rear screw, allowing on-the-fly adjustments for different material thicknesses.
High-Force Positioning
Leverage 21991 N of push force at 0.7 MPa to move heavy assemblies, relying on the 40 mm rod and M36x2 thread to withstand high mechanical stress.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX50-30S the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires extreme push force—stepping down to a 160 mm bore limits you to 10053 N at 0.5 MPa, while this model provides 15708 N. The adjustable stroke is highly beneficial for machine setups requiring variable end-stops during product changeovers. Because the stroke is 50 mm, side-loading is minimal, but the 40 mm rod diameter and M36x2 thread provide excellent structural rigidity for heavy loads. For load-holding without live air pressure, note that the rear adjuster is a stop, not a lock; you would need an external pilot-operated check valve or a related SAIL air-released lock cylinder.
To match this ISO 15552 interchangeable cylinder for a replacement, verify the 200 mm bore, 50 mm stroke, 30 mm adjustment range, PT G3/4 port, and the -S magnet requirement. It uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ200AX50-30S FAQ
At 0.5 MPa operating pressure, it provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw lets you mechanically shorten the effective stroke by up to 30 mm, creating a usable travel window of 20 to 50 mm. The adjuster functions as a physical stop for end-position tuning and does not lock the load without live air pressure.
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