Airtac SAIJ50 Adjustable Cylinder SAIJ50BX95-20S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX95-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 95mm 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
- Stroke95 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 SAIJ50BX95-20S
The AirTAC SAIJ50X95-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 982N of push force and 825N of pull force at 0.5 MPa, giving you robust thrust for mid-range automation tasks. The integrated -S magnet enables position detection via AirTAC CMSE reed or DMSE electronic solid-state sensors housed in the dual-side barrel grooves.
This specific SKU provides a 95mm nominal stroke that can be dialed back by up to 20mm, creating a precise 75-95mm usable travel window for product changeovers. It features a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads (G1/4). The extruded aluminum profile design omits the FB, CA, CB, and CR mountings, supporting only Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX95-20S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX95-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 95 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 SAIJ50BX95-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×95 | 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 SAIJ50BX95-20S Is Used
Product Changeover
Dial in the 75-95mm travel window on packaging lines to accommodate different carton sizes without physically replacing the cylinder.
End-Stop Calibration
Fine-tune the retract position during machine setup to perfectly align tooling, using the rear screw rather than adding external shims.
Diversion Arms
Adjust the stroke length on pneumatic sorting gates to handle varying product widths on the fly while maintaining reliable thrust.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX95-20S the Right Cylinder?
Select this 50mm bore when an application demands exact end-position tuning without swapping hardware; the rear screw allows you to trim the stroke within the 75-95mm window during commissioning. If your process requires less thrust, stepping down to a 40mm bore yields 628N push force at 0.5 MPa, while upgrading to a 63mm bore provides 1559N. Remember that the rear adjuster functions strictly as a travel stop, not a locking device. To hold a load securely without live air pressure, you must integrate an external rod lock, a pilot-operated check valve, or switch to an AirTAC SAIL or BSAI cylinder. For exact ISO 15552 interchangeability, match the 50mm bore, 95mm stroke, 20mm adjustment, PT ports, and -S 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 SAIJ50BX95-20S FAQ
At 0.5 MPa operating pressure, this 50mm bore cylinder provides 982N of push force and 825N of pull force. At 0.7 MPa, the push force increases to 1374N.
The rear adjuster screw acts as a mechanical stop that shortens the retract stroke by up to 20mm. This gives the 95mm nominal stroke a usable travel window of 75-95mm, allowing precise end-position tuning without consuming live air.
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