Airtac SAIJ50 Adjustable Cylinder SAIJ50AX275-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX275-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 275mm 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
- Stroke275 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 SAIJ50AX275-100S
The AirTAC SAIJ50X275-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 982N push force at 0.5 MPa and allows you to dial back the 275mm nominal stroke by up to 100mm, creating a 175-275mm usable travel window for precise end-position tuning. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet supports CMSE reed and DMSE electronic switches.
This model uses an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features PT tapered port threads. It carries the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) while omitting FB, CA, CB, and CR brackets. The rear adjuster acts purely as a travel stop to decelerate the piston, not as a lock.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX275-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX275-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 275 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 SAIJ50AX275-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×275 | 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 SAIJ50AX275-100S Is Used
Machine Changeover
Fine-tune the 175-275mm travel window during product size changes without physically replacing the cylinder or adding external mechanical stops.
End-Position Tuning
Dial in the exact retract distance during commissioning using the rear screw, ensuring precise seating of parts at the end of the stroke.
Sensor Integration
Utilize the integrated magnet with CMSE reed or DMSE solid-state sensors in the dual barrel grooves to confirm the adjusted end position.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX275-100S the Right Cylinder?
Choose this 50mm bore when you need 982N of push force at 0.5 MPa (or 1374N at 0.7 MPa) with on-the-fly end-stop flexibility. If your application requires less force, the 40mm bore offers 628N at 0.5 MPa; for heavier loads, the 63mm bore provides 1559N. The adjustable stroke is ideal for product changeovers, letting you fine-tune the 175-275mm travel window without swapping cylinders or adding external stops.
Because the 275mm stroke is relatively long, ensure adequate external guidance to prevent excessive side loading on the M16x1.5 rod thread. Remember that the rear adjuster only sets the travel end and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. This configuration includes a -S magnet and PT ports.
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 SAIJ50AX275-100S FAQ
At 0.5 MPa it provides 982N push and 825N pull force. At 0.7 MPa the push force increases to 1374N, with a maximum rated operating pressure of 1.0 MPa.
The rear adjuster screw lets you shorten the 275mm nominal stroke by up to 100mm, yielding a 175-275mm usable travel window. The adjuster acts as a mechanical stop to set the end position; it is not a lock and will not hold the load without continuous air pressure.
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