Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-75S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 105mm 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
- Stroke105 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 SAIJ50AX105-75S
The AirTAC SAIJ50X105-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 105 mm travel back by up to 75 mm. This creates a wide 30-105 mm usable window, letting you fine-tune the retract end-position at commissioning without swapping out the cylinder or adding external stops. It delivers 982 N of push force at 0.5 MPa, backed by a 16 mm rod and M12x1.25 thread.
This -S variant includes a magnet for CMSE reed and DMSE electronic sensors, fitting neatly into the extruded aluminum barrel's dual sensor grooves. It features a SUS420J2 stainless steel rod for corrosion resistance and uses PT tapered G1/4 ports. The rear screw acts purely as a travel stop for deceleration setup, meaning it will not hold a load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-75S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 105 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 SAIJ50AX105-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×105 | 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 SAIJ50AX105-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract distance between 30 and 105 mm during machine setup to accommodate varying material thicknesses without changing hardware.
Product Changeover
Quickly adapt automated lines to new product sizes by turning the rear adjuster screw, eliminating the need to physically swap out the entire actuator.
Assembly Positioning
Leverage the 982 N push force and precise end-position control to seat components accurately, using the built-in air cushion to soften the final impact.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX105-75S the Right Cylinder?
Choose this 50 mm bore when your application requires roughly 982 N push force at 0.5 MPa, stepping up from a 40 mm bore (628 N push) for heavier payloads, or down from a 63 mm bore (1559 N push) to save space. The 75 mm adjustment range is ideal for product-size changeovers on a line, acting as a variable end-stop. For load-holding without live air, select a SAIL or BSAI cylinder instead, as this adjuster is not a lock.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard bore, stroke, and port dimensions. Available mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 105 mm stroke is relatively short, side-load stress is minimal, but an external guide is always recommended for heavy lateral 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 SAIJ50 Adjustable Cylinder SAIJ50AX105-75S FAQ
The rear adjuster screw lets you shorten the nominal 105 mm stroke by up to 75 mm, providing a usable travel window of 30 to 105 mm. It acts as a mechanical stop to set the end position and does not lock the load without air pressure.
At 0.5 MPa operating pressure, it provides 982 N of push force and 825 N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 1767 N.
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Covers non-human-caused product damage.
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