Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-75
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 900mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke900 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 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 SAIJ50 Adjustable Cylinder SAIJ50AX900-75
The AirTAC SAIJ50X900-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 900mm travel that can be dialed back by up to 75mm, yielding a precise 825-900mm usable window for commissioning without external stoppers. Delivering 982N of push force at 0.5MPa, it handles robust actuation tasks.
This unit integrates a corrosion-resistant SUS420J2 stainless steel rod and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the -S magnet, meaning CMSE reed or DMSE electronic switches cannot be mounted without a different configuration.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-75 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×900 | 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 SAIJ50 Adjustable Cylinder SAIJ50AX900-75 Is Used
Variable Length Diverter
Dial in the exact 825-900mm retract distance to push varying package sizes onto specific conveyor lanes without physically changing the cylinder.
Machine Changeover Stops
Quickly fine-tune the end-of-stroke position during product family transitions using the rear screw, avoiding the need to bolt on external mechanical stops.
Long-Stroke Assembly Press
Utilize the 982N push force and 900mm travel to drive long-distance component seating, adjusting the final 75mm of approach for delicate parts.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX900-75 the Right Cylinder?
Selecting this 50mm bore over a 40mm version upgrades your thrust from 628N to 982N at 0.5MPa, while avoiding the larger 63mm bore's 1559N footprint and G3/8 porting. The 75mm adjustment range is ideal for product changeovers, allowing you to fine-tune the retract end-position on the fly rather than swapping a fixed-stroke SAI cylinder.
Because the stroke is 900mm, the 16mm rod requires an external guide to prevent excessive side-loading and binding. Remember that the rear adjuster is a travel stop, not a lock; if your application needs to hold a load without live air pressure, specify an SAIL or BSAI cylinder instead. For a true ISO 15552 replacement, match the 50mm bore, 900mm stroke, PT ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and no magnet.
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 SAIJ50 Adjustable Cylinder SAIJ50AX900-75 FAQ
At 0.5MPa operating pressure, this 50mm bore cylinder generates 982N of push force and 825N of pull force. It can reach up to 1767N push at 0.9MPa.
The rear adjuster screw acts as a mechanical stop that can shorten the 900mm stroke by up to 75mm, providing an effective travel range of 825-900mm. It only sets the end position and does not lock the load without live 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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