Description
Introduction of Quarter-Turn Electric Actuators BJ05-Q1 Basic Series
Quarter-Turn Electric Actuators BJ05-Q1 Basic Series serve as compact and dependable driving units for modern industrial process control. They deliver stable 90-degree rotary motion for ball valves, butterfly valves, and other quarter-turn valves, and fit smoothly into power, petroleum, chemical, metallurgy, food, and environmental protection applications. Built with high-strength aluminum alloy, these actuators combine small size, light weight, and attractive appearance while maintaining strong structural rigidity. In addition, they support standard ISO5211 mounting flanges, so you can install and replace them quickly without extra modification.
Furthermore,BJ05-Q1 bring complete and practical control functions to daily operation. They support local control, remote on-off control, two-wire control, and ESD control to meet diverse on-site demands. Meanwhile, they include full protection features such as valve position limit, torque overload, phase loss, and motor thermal protection. With a rated torque of 50 N·m and selectable speeds of 0.5 rpm and 1 rpm, they precisely match the needs of small-torque valve driving tasks.
Most importantly, BJ05-Q1 integrate intelligent human-machine interaction and high-precision sensing technology. They use a clear dot-matrix liquid crystal display for real-time status feedback, adopt non-intrusive setting for easy commissioning, and apply an absolute encoder for stable position detection. These designs greatly simplify operation, maintenance, and troubleshooting. Whether in standard working conditions or harsh environments, they maintain consistent performance and bring long-term reliability to automated control systems.
Specification of Quarter-Turn Electric Actuators BJ05-Q1 Basic Series
| Part number | Rotary speed (rpm) | Rated torque （N.m） | Motor power （W） | Rated current （A） | Handwheel circle number（n） | weight（kg） |
| BJ05-Q1 | 0.5 | 50 | 45 | 0.16 | 60 | 8.5 |
| 1 | 45 | 0.16 |
Dot-Matrix Liquid Crystal Display
Quarter-Turn Electric Actuators BJ05-Q1 Basic Series come with a high-definition dot-matrix liquid crystal display that greatly improves on-site visibility and operability. The screen shows key information clearly, including current valve position, limit settings, running status, and fault alarms. It uses a mix of text, numbers, and graphics to make data easy to read at a glance. Additionally, it supports multi-language display to adapt to global application scenarios. In practice, you can check working conditions and identify faults quickly without relying on extra tools. Meanwhile, the display works seamlessly with non-intrusive operation, so you can view and adjust parameters directly on site. This dot-matrix liquid crystal display turns complex data into intuitive information, making Quarter-Turn Electric Actuators BJ05-Q1 Basic Series more user-friendly and intelligent in daily use.
Non-Intrusive Design
BJ05-Q1 feature an efficient non-intrusive design that simplifies commissioning and maintenance significantly. You can complete parameter setting, status check, and signal query using an external setter or field knob, and you never need to open the protective casing. Furthermore, you can calibrate input and output currents without removing the cover, which saves time and reduces operation risks. This design prevents dust, moisture, and corrosive media from entering the interior, so internal electronics stay safe and stable. Combined with double sealing and double protection, the non-intrusive structure enhances durability in harsh environments. For daily management, it reduces workload and improves efficiency. All these advantages make BJ05-Q1 more reliable and convenient for long-term use.
Absolute Encoder Position Sensor
Quarter-Turn Electric Actuators BJ05-Q1 Basic Series use a high-performance absolute encoder for accurate valve position detection. Unlike incremental sensors, this absolute encoder records unique position values in real time and keeps data even after power failure. As a result, you do not need to re-calibrate or reset reference points after restarting, and position drift never occurs. Moreover, the non-contact sensing structure has no mechanical wear, so it supports frequent starting and long service life. It provides stable and precise position feedback to the control system and ensures accurate valve positioning under complex conditions. With this sensor, Quarter-Turn Electric Actuators BJ05-Q1 Basic Series maintain high control precision and response speed. It becomes a core component that supports stable and reliable operation in automatic valve control systems.
Related Product ：BJ/BJM‑IIC series part‑turn Intelligent Electric Actuators
The BJ/BJM‑IIC series part‑turn intelligent electric actuators serve as key on‑site control devices for industrial process automation. They deliver stable rotary output within 0–90° and cover a torque range from 50 N·m to 3000 N·m, and they suit butterfly valves, ball valves, and dampers in power, petroleum, chemical, and municipal engineering fields. Adopting a patented planetary gear drive, these actuators boost mechanical efficiency, lower wear, and remove unreliable manual‑electric switching mechanisms, so they run more safely and last longer.
These actuators use a non‑intrusive design and support parameter setting and status checking via knobs or infrared programmers without opening the cover. A full‑Chinese LCD clearly shows valve position, torque, and alarm messages, and built‑in absolute encoders maintain accurate position feedback even after power loss. They accept multiple control modes, including on‑site, remote analog, bus, and ESD emergency control, and come with complete protections such as overload, phase loss, and overheating.
The series offers standard, flameproof, and dust‑explosion‑proof versions with IP68 ingress protection, and they work reliably in harsh environments. Users can choose switch, intermittent modulating, or frequent modulating types to match different working frequencies. There is also a split‑type IICF version for high‑temperature or strong‑vibration sites, making the series highly adaptable for diverse industrial automation scenarios.