Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-30
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX185-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 185mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke185 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-30
The AirTAC SAIJ100X185-30 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 185 mm stroke that can be dialed back by up to 30 mm, yielding a precise 155-185 mm usable travel window for commissioning without external stops.
This variant is configured with a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered G1/2 ports. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE or DMSE switches. It supports a speed range of 30-800 mm/s and relies on adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×185 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX185-30 Is Used
Machine Setup Changeover
Dial in the exact 155-185 mm retract position during product line changeovers without machining new stopper blocks or swapping the cylinder.
Variable End-Stop Tuning
Fine-tune the end-of-stroke position during commissioning to absorb mechanical tolerances, using the 30 mm adjustment window to perfect the motion sequence.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-30 the Right Cylinder?
Select this 100 mm bore cylinder when an application requires substantial thrust—stepping down to an 80 mm bore yields 3518 N at 0.7 MPa, which may be insufficient for heavy moving fixtures. The 30 mm rear adjuster allows operators to fine-tune the retract end-position during machine setup or product changeover, avoiding the need to swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint for a direct replacement, verify the 185 mm stroke, 30 mm adjustment range, PT G1/2 port, and mounting choice from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the rear adjuster functions strictly as a travel stop; it does not hold the load without live air pressure. For fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder, or an external rod lock. Because the 185 mm stroke is relatively short, side-load risks are minimal, but an external guide is always recommended for heavy 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 SAIJ100 Adjustable Cylinder SAIJ100AX185-30 FAQ
It features a rear adjusting screw that acts as a stopper, allowing you to shorten the effective stroke from 185 mm down to as low as 155 mm. This provides a 30 mm tuning window to set the exact retract position during commissioning without changing the cylinder.
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