Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-50
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX185-50 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 SAIJ100AX185-50
It features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses a PT G1/2 port. By turning the rear screw, you can trim the 185mm nominal stroke back by up to 50mm, creating a precise 135-185mm usable travel window without swapping out the cylinder.
This adjustable stopper allows fine end-position tuning at commissioning or during product changeovers, eliminating the need for external stops. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. It supports a standard mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-50 |
|---|---|
| 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 SAIJ100AX185-50
| 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 SAIJ100AX185-50 Is Used
Product Size Changeovers
Dial in the 135-185mm travel window during line changeovers to accommodate different packaging formats without mechanically repositioning the cylinder.
Commissioning Fine-Tuning
Use the 50mm rear adjuster to precisely set the end-of-stroke position during initial machine setup, avoiding the hassle of adding external shims or stopper blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX185-50 the Right Cylinder?
Choose this 100mm bore when you need heavy thrust beyond the 63mm class (2182N at 0.7 MPa) but want to avoid the larger 160mm footprint. The 50mm adjustment range is ideal for machines running mixed product sizes, letting you dial in the exact end-stop on the fly. Remember that the rear adjuster functions only as a travel stop, not a brake; it cannot hold a load without live air pressure. For secure load-holding, consider an external rod lock or the AirTAC SAIL series.
When replacing an ISO 15552 cylinder, verify the 185mm stroke, 50mm adjuster requirement, PT G1/2 port, and mounting style. Because the 185mm stroke is relatively short for this bore, side-load stress is minimal, but always ensure the M20x1.5 rod thread is aligned with your clevis to prevent binding.
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 SAIJ100AX185-50 FAQ
At a maximum 1.0 MPa, it can deliver up to 801 kgf.
The rear adjuster acts as a mechanical stop that shortens the effective travel. For this SAIJ100X185-50, you can trim the 185mm nominal stroke back by up to 50mm, giving you a usable travel window of 135-185mm. It functions as a stop only and does not lock the load without continuous air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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