Articulated ARM

In assembly lines that utilise nutrunners, drills, or hand tools with high torque, reaction torque is a leading cause of rapid operator fatigue, reduced accuracy, and potential injury risks. The VIETMANI Torque Reaction Arm is developed to absorb reaction torque, support tool balancing, and reduce the physical load on operators. Consequently, businesses can boost productivity, improve assembly quality, and ensure safety during the manufacturing process.

What is a Torque Reaction Arm?

A Torque Reaction Arm is an assistive device designed to absorb and eliminate reaction torque generated during the operation of tightening tools, drills, tapping machines, or high-torque handheld devices. Instead of allowing the entire feedback force to impact the operator directly, the system transfers the force to the structure of the reaction arm, making operations effortless, stable, and safer.

The VIETMANI Torque Reaction Arm belongs to the BENA Series, integrated with Zero Gravity Balancer technology, which balances the weight of the tool and helps operators control equipment effortlessly. The device offers torque resistance up to 1,500 N·m, a maximum working radius of 4,000 mm, and a vertical stroke of 1,400 mm, effectively meeting the demands of various industrial assembly applications requiring high tightening torque.

Beyond easing the burden on workers, the Torque Reaction Arm also contributes to enhancing tightening accuracy, improving product quality, and increasing productivity for assembly lines. Thanks to its flexible design, the product can be installed on a Fixed Column or an Overhead KBK track system, while easily customised to fit specific tool types and operational requirements of the enterprise.

Why do businesses need Torque Reaction Arms?

In modern assembly lines, the use of nutrunners, drills, or high-torque hand tools is increasingly common to meet productivity and quality standards. However, the reaction torque generated during operation poses a significant challenge for both workers and businesses. If left uncontrolled, reaction torque not only diminishes labour efficiency but also directly impacts product quality and workplace safety.

The VIETMANI Torque Reaction Arm was developed to comprehensively solve this issue. By absorbing reaction torque and balancing tool weight, the device enables operators to work with greater ease and precision, thereby driving long-term manufacturing efficiency.

Operators fatigue quickly during continuous work

When operating high-torque tools, operators must constantly hold and resist the machine's feedback force. This places significant strain on the wrists, arms, shoulders, and back, particularly during extended shifts. The Torque Reaction Arm eliminates the majority of this feedback force, significantly reducing labour intensity and helping workers maintain steady performance throughout their shift.

Difficulty ensuring accuracy during torque tightening

Strong feedback forces can cause tools to vibrate or shift out of position, resulting in torque deviations that compromise assembly quality. By keeping tools stable and balanced throughout the work process, the torque reaction arm enhances precision and ensures consistent quality across all products.

Potential occupational safety risks

Frequent exposure to high feedback forces increases the risk of injuries to the wrists, elbows, shoulders, and musculoskeletal disorders. Furthermore, sudden tool jerks or loss of control can lead to workplace accidents during production. The torque reaction arm safely transfers all reaction torque to the supporting frame system, drastically reducing risks for the operator.

Boost productivity and optimise production costs

When operators work more comfortably, experience less fatigue, and spend less time readjusting tools after each fastening cycle, work speed improves significantly. Simultaneously, reducing assembly errors and minimising tool damage contribute to lower maintenance, repair, and overall manufacturing costs.

Meet the demands of modern assembly lines

Many industries, including automotive, motorcycle, mechanical manufacturing, electrical equipment, and energy, demand high precision and stringent worker safety. Designed in various configurations, the VIETMANI Torque Reaction Arm supports reaction torque up to 1,500 N·m, integrates Zero Gravity technology, and can be mounted on fixed columns or KBK overhead tracks, seamlessly adapting to a diverse range of industrial production lines and tools.

Key Highlights and Advantages

Specifically engineered for high-torque tool applications, the VIETMANI Torque Reaction Arm (BENA Series) not only eliminates feedback force but also optimises operational experience, boosts productivity, and ensures precision during assembly.

Below are the standout advantages of the product:

• Absorbs reaction torque up to 1,500 N·m: Eliminates nearly all feedback force from tightening tools, ensuring safer and effortless handling for operators.
• Zero Gravity Balancer Technology: Balances tool weight to support weightless, fluid movement, reducing fatigue during continuous operation.
• Enhanced assembly precision: Keeps tools stable throughout operation, minimising vibration and ensuring uniform fastening force.
• Wide working range: Features a working radius up to 4,000 mm and a vertical stroke of 1,400 mm, flexibly adapting to multiple positions along the assembly line.
• Versatile mounting configurations: Supports installation on a Fixed Column or an Overhead KBK track system, easily customizable for specific applications.
• Integrated pneumatic braking system: Locks the arm in the desired position, facilitating more accurate and stable operation during tightening tasks.
• Durable operation in industrial environments: Operates at an air pressure of 0.6–0.8 MPa, with a robust structure suitable for high-intensity work.

Benefits of Using a Torque Reaction Arm

Investing in the VIETMANI Torque Reaction Arm not only improves working conditions for operators but also delivers substantial economic value to the enterprise.

• Reduces operation time, maintains steady performance, and increases output per shift.
• Lowers labour intensity, optimises staffing allocation, and elevates operational efficiency.
• Keeps tools stable, ensures precise and uniform tightening torque, and minimises repair and rework costs.
• Reduces vibration and payload impact on tools, extending the lifespan of nutrunners and lowering component replacement costs.
• Prevents injuries caused by feedback force, minimising absenteeism and expenses arising from workplace accidents.
• Optimises production line efficiency, reduces operational overheads, and delivers sustainable long-term economic value.
• Elevates product quality, meets the rigorous requirements of modern production lines, and enhances overall manufacturing efficiency.

Applications of Torque Reaction Arms

The VIETMANI Torque Reaction Arm is designed to operate with high-torque tools across numerous industries. With the capability to be customised for specific tools and assembly lines, the device helps boost productivity, ensure precision, and improve working conditions across multiple applications.

• Supports tightening processes for chassis bolts, engines, suspension systems, and automotive wheels.
• Applied in assembly lines for engines, vehicle frames, and motorcycle components.
• Assists in operating nutrunners, tapping machines, drills, and industrial hand tools during mechanical processing and assembly.
• Ideal for assembling industrial machinery, agricultural equipment, construction vehicles, and large-scale structures utilising high-strength bolts.

The VIETMANI Torque Reaction Arm can be integrated with various types of tools, including:

• DC Nutrunners
• Pneumatic impact wrenches
• Torque Wrenches
• Industrial drills
• Tapping machines
• Other high-torque handheld tools

Technical Specifications

The VIETMANI Torque Reaction Arm (BENA Series) is designed with multiple configuration options to meet diverse requirements regarding torque, workspace, and mounting methods for each business. The core technical specifications are as follows:

Note: The parameters above represent the standard configurations of the BENA Series. VIETMANI can design and customize boom lengths, mounting methods, tool holders, and accessories according to the specific tool type, torque, and practical requirements of each production line to ensure optimal operational efficiency.

Why Choose VIETMANI?

As a pioneer in lifting and industrial ergonomic manipulation solutions in Vietnam, VIETMANI not only supplies equipment but also partners with businesses throughout the survey, design, installation, and assembly line optimisation processes. Each solution is customised to actual requirements, delivering sound investment returns and long-term usability.

Reasons businesses choose VIETMANI:

• Equipment is customised in size, payload, tool holder, mounting method, and configuration to perfectly match individual tools, products, and assembly lines.
• A team of experienced engineers conducts on-site factory surveys, advising optimal solutions based on production specifics and investment goals.
• Design, manufacturing, and quality control are executed proactively, shortening implementation timelines and responding swiftly to technical requirements.
• Equipment is built for industrial environments with superior durability, stable operation, and straightforward maintenance.
• A warranty policy of up to 2 years, coupled with maintenance, inspection services, and genuine spare parts supply, provides total peace of mind throughout usage.
• Comprehensive support including installation, operational guidance, personnel training, and rapid technical assistance whenever needed.

Every assembly line possesses unique characteristics and technical demands. Therefore, selecting the right torque reaction arm configuration helps businesses optimise capital efficiency, boost productivity, and guarantee operational safety.

VIETMANI's engineering team is ready to conduct on-site surveys and provide tailored consulting on solutions matching your specific tool types, torque requirements, installation spaces, and manufacturing processes.

Contact VIETMANI today.