Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-30S
The AirTAC SAIJ200X145-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers exceptional force, providing 21991N of push force at 0.7 MPa and a maximum of 15708N at 1.0 MPa. The built-in rear stopper allows you to trim the nominal 145mm stroke back by up to 30mm, creating a precise 115-145mm usable travel window for exact end-position tuning during commissioning.
This variant features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a magnet for position sensing with CMSE reed and DMSE electronic switches. The extruded aluminum barrel provides sensor grooves on both sides, and the robust M36x2 rod thread handles high side loads. It uses PT tapered port threads (G3/4) and includes variable air cushions at both ends to decelerate heavy loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 145 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 SAIJ200AX145-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×145 | 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 SAIJ200AX145-30S Is Used
Heavy Press Tuning
Dial in the exact 115-145mm travel window on heavy stamping presses to accommodate different material thicknesses without changing the cylinder.
Machine Changeover
Quickly adjust the retract end-stop during product size changeovers on the line, saving time by avoiding mechanical cylinder swaps.
Large Assembly Setup
Fine-tune the end position of heavy assembly tooling at commissioning, using the rear screw to set precise contact pressure without external stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX145-30S the Right Cylinder?
Choose this adjustable model when your machine setup requires fine-tuning the retract end-position without swapping cylinders or adding external stops. If you need slightly less force and a smaller footprint, stepping down to a 160mm bore yields 14074N of push force at 0.7 MPa. For load-holding applications without live air pressure, note that the rear adjuster acts only as a travel stop, not a lock; consider an AirTAC SAIL or BSAI cylinder instead. This SAIJ configuration includes a -S magnet, SUS420J2 rod, PT ports, and a 30mm adjustment range. Since the stroke is under 300mm, standard mounting handles the load, but long unsupported strokes still need an external guide. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200AX145-30S FAQ
The rear adjuster acts as an external stopper that lets you shorten the effective stroke by up to 30mm. This gives you a usable travel window of 115-145mm, allowing you to fine-tune the end position at commissioning without swapping the cylinder.
As a 200mm bore cylinder, it delivers a push force of 21991N and a pull force of 15080N at 0.7 MPa. At the maximum operating pressure of 1.0 MPa, the push force reaches 15708N.
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