If you’re experiencing losses due to unexpected downtime caused by dead batteries, positioning inaccuracies when operating in blind spots, or safety hazards in your factory environment, the TechWell B Series may be the solution to your pain points—it’s known in the industry as the “Bull” for its rugged red housing and consistent heavy-duty performance. The B Series includes handheld push-button and backpack-style joystick remote controls, while the belly-box joystick station is specifically designed for overhead crane remote control systems, delivering near-perfect precision during large-scale lifting and material handling operations. Of course, as a versatile wireless hoist remote control, it is also suitable for everyday lifting tasks.
System-Level Industrial Wireless Control Systems & Wide-Ranging Applications
Unlike competitors who merely sell basic transmitters, TechWell provides complete closed-loop control systems. Our solutions deeply integrate transmitters, receivers, encoders, tilt sensors, pressure sensors, and hydraulic valve actuators (such as our TSPB and SCB vehicle control systems), enabling attitude calculation, load-sensitive feedback, and self-diagnostic fault detection.
Whether you are fully equipping a modern automated facility or looking to upgrade the functionality of an electric hoist with wireless remote control, the B Series provides industrial wireless control systems that have been proven across multiple industries worldwide and offer broad compatibility.

Remote Control Retrofit for Steel Mill Bridge Cranes:
This retrofit project was carried out for a leading global steel manufacturer whose smelting shop is characterized not only by high temperatures and high dust levels but also by strong electromagnetic interference. Using traditional wired joysticks to operate cranes in such an environment posed significant safety risks to operators. After we equipped the steel mill with TechWell’s B Series, featuring IP66-rated industrial-grade receivers, operators can now control the cranes from a safe distance of 30 meters using radio remote control (RRC) devices. Results of the retrofit: cargo handling efficiency for the crane equipment increased by 28%, operators are no longer exposed to the risk of high-temperature radiation, and the system has maintained a zero-failure operating record for the 18 months since the retrofit.
Concrete Pump Truck Full-Vehicle Control System:
We developed a TSPB boom full-vehicle control system for a leading global construction machinery manufacturer, addressing the issues of large blind spots and difficulty in fine-tuning movements associated with traditional long booms. This system integrates TechWell’s industrial proportional remote controller with multi-sensor closed-loop feedback and has been successfully installed on over 2,000 vehicles. A single operator can work independently using the TSPB, with boom positioning accuracy of ±5 mm, resulting in a pouring efficiency increase of at least 35% compared to previous systems.
High-Speed Road Clearance and Towing Rescue:
During rescue operations in low-clearance tunnels, operators in fixed control cabins face limited visibility and longer response times. TechWell’s B-Series crane radio controls, equipped with a display featuring real-time video feed, enable precise and independent towing and lifting control. This feature allows remote operators to view the on-site situation in real time, significantly improving rescue efficiency. It has now become standard equipment for many towing vehicle manufacturers, including XCMG.
The B-Series belly-box joystick station serves as the core interactive hub for all these closed-loop vehicle control systems. These extremely durable crane radio controls will ensure the success of every overhead crane remote control operation.
Core Features: Engineered for the Extremes
Advanced Safety Architecture
- The B Series is built on a dual-channel redundant CPU architecture with cross-diagnostic capabilities, meeting Performance Level d (PL d) as defined by the global functional safety standard EN ISO 13849-1:2015.
- The active 3-axis tilt-based safe-stop system provides dual safeguards. It performs self-safety checks more than 100 times per second; if any signal anomaly is detected, it triggers a Category 0 emergency stop compliant with IEC 60204-1 within 10 milliseconds.
- The integrated RFID smart identification system verifies operator qualifications, ensuring that only trained and authorized personnel can operate the equipment. Additionally, its SD card parameter cloning feature allows for transmitter replacement in seconds, enabling backup units to be quickly put into service without complex re-pairing.
- The B Series features high control precision and safety specifications that far exceed basic requirements, meeting the high-tolerance demands of lifting operations and the complex motion requirements of hydraulic booms.
Precision Control and Advanced Human-Machine Interface (HMI)
Our joysticks, rated for 2,000,000 actuations per axis, provide true load-sensing proportional control, enabling flawless execution of fine-motion operations.
All models are equipped with an HMI powered by CODESYS V3.5, compliant with the IEC 61131-3 international programming standard. It supports the development of custom control logic, real-time operational data visualization, and integrates video feedback from up to four onboard cameras.
Nothing is more undesirable during operation than a remote control running out of power—this is dangerous and could even result in production losses due to this brief downtime. The B Series ensures uninterrupted operation under demanding conditions thanks to its proprietary dual-battery design, which allows operators to swap out a depleted battery for a spare while the system remains in operation.
For OEM customers, our team can deliver customizable UIs and control logic via the CODESYS platform, featuring short development cycles and compatibility with mainstream PLCs and hydraulic control systems.
Industrial-Grade Durability and Low-Maintenance Design
The B Series is equipped with hot-swappable batteries that ensure zero control interruption (<10 ms). Operators can replace depleted batteries during shift changes without stopping operations or losing connection between the remote control and the equipment due to a power outage.
Each transmitter is equipped with two 7.4V high-capacity lithium-ion batteries (3000–5000mAh), providing over 8 hours of continuous operation on a single charge. The transmitter housing is constructed from ultra-high-density industrial plastic and aerospace-grade aluminum, offering high durability, easy maintenance, and resistance to water, dust, and industrial oils.
The entire unit is resistant to both extreme cold and high temperatures, operating reliably in environments ranging from -25°C to +70°C. It also resists condensation in environments with up to 97% relative humidity. As a wireless crane control system, it is perfectly suited for extreme environments such as mines in cold regions and high-temperature steel mills.
Technical Specifications
Below are the complete technical specifications for the B Series platform, all of which have been validated against international industrial standards and offer plug-and-play integration with your existing cranes, hoists, and hydraulic machinery:
| Technical Specification | Details |
| Operating Range | ≥ 150m line-of-sight (open field) |
| Wireless Technology | FHSS (Frequency Hopping Spread Spectrum) with region-specific dual-band configuration • 433MHz tuned for EU market • 470MHz tuned for APAC marketBuilt-in automatic channel switching to resist electromagnetic interference |
| Radio Compliance | Fully compliant with ETSI EN 300 220 |
| Functional Safety Rating | Performance Level d (PL d) per EN ISO 13849-1:2015 |
| Enclosure Protection Rating | IP66 per IEC 60529 |
| Core Communication Protocol | CANopen DS301 V4.02, compliant with CiA 406 device profile |
| Modular Output Interfaces | • PWM signals • Relay contacts • 0-5V / 4-20mA analog signals |
Need Explosion-Proof Solutions?
The B Series is designed specifically for general heavy industry. If you have explosion-proof requirements, we offer a product line certified to ATEX/IECEx and MA/KA standards. Learn more about our explosion-proof series for hazardous environments in industrial facilities and underground mines.
Why Choose TechWell?
As a leading industrial radio remote control manufacturer, TechWell’s products are exported to over 100 countries. With more than 20 years of expertise in independent R&D, we have earned the trust of heavy machinery giants such as XCMG. Our factory operates under strict ISO 9001 standards, and all products have obtained comprehensive CE certification. We don’t just sell standard remote controls; we deliver solutions. We offer private labeling and full custom engineering services, supporting in-depth firmware customization and integration of proprietary CANbus/PWM protocols.
CTA
Are you ready to reduce downtime, improve operator safety, and achieve greater precision with every lift? Please share details about your current overhead crane remote control systems, including your equipment type and operating environment. Our engineering team will provide you with a customized technical solution, as well as OEM/ODM options that perfectly match your specific needs.



