Airtac SAIJ50 Adjustable Cylinder SAIJ50AX170-75
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX170-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 170mm 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
- Stroke170 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 SAIJ50AX170-75
The AirTAC SAIJ50X170-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 95 to 170 mm, allowing you to dial back the nominal 170 mm stroke by up to 75 mm during commissioning. This bore size delivers 982 N of push thrust and 825 N of pull thrust at 0.5 MPa, making it well-suited for moderate-force positioning tasks.
This model is built with an SUS420J2 stainless steel piston rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides. Because the rear adjuster acts strictly as a mechanical stop and the built-in air cushions only manage end-of-travel deceleration, this cylinder cannot hold a load without continuous live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX170-75 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX170-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 170 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 SAIJ50AX170-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×170 | 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 SAIJ50AX170-75 Is Used
End-Position Tuning
Dial in the exact retract distance within the 95-170 mm window during machine commissioning to perfect product hand-offs.
Variable Product Changeover
Quickly adapt the stroke length on packaging lines handling different carton sizes without replacing the entire actuator.
Adjustable Stopper Setup
Use the rear screw to set a precise mechanical stop for moderate-force pressing or indexing operations up to 982 N.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX170-75 the Right Cylinder?
Choose this 50 mm bore when a 40 mm bore (providing 628 N push force at 0.5 MPa) is insufficient, but a 63 mm bore (delivering 1559 N) would be excessive for your application. The generous 75 mm adjustment range is ideal for product changeovers or fine-tuning end positions without swapping the cylinder or adding external stopper blocks. For load-holding requirements without live air, consider an AirTAC SAIL or BSAI cylinder instead.
When replacing an ISO 15552 cylinder, match the 50 mm bore, 170 mm stroke, G1/4 port, and PT thread type. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Since this unit lacks a magnet, it does not support CMSE or DMSE sensors.
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 SAIJ50AX170-75 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N. The operating speed range is 30-800 mm/s.
The rear adjuster screw lets you shorten the effective travel from the nominal 170 mm down to 95 mm. This mechanical stop fine-tunes the retract end position but does not lock the load; live air pressure is required to hold position.
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