Exoskeleton Construction: Complete Guide for Building Sites (2025)

What is a Construction Exoskeleton and How Does It Work?

A construction exoskeleton is a technological innovation that transforms working conditions on building sites. Designed to assist body movements, this wearable mechanical device reduces muscular effort and fatigue, allowing construction professionals to work longer and in better health. In this section, we explore the basic principles and types of exoskeletons suited to the industry.

Definition and Basic Principles

A construction exoskeleton is a piece of equipment worn like technical clothing. It works using springs, dampers, or electric motors to transfer loads from the limbs to an external skeleton. This means that when you lift a bag of cement or work with your arms raised, the exoskeleton takes part of the effort for you.

• Passive assistance: Uses springs or dampers to store and release energy, without a battery. Ideal for repetitive tasks.
• Active assistance: Incorporates electric motors to provide extra force, particularly useful for carrying heavy loads.
• Modular design: The most advanced models, such as those from Exyvex, allow you to combine multiple modules (back, legs, arms) according to site needs.

Types of Exoskeletons Suited to Construction

Choosing an exoskeleton depends on the task at hand. Here are the main types used in construction:

• Back exoskeleton: Relieves the spine when lifting and transporting materials. Particularly suited to bricklayers and handlers.
• Leg exoskeleton: Reduces fatigue in the quadriceps and knees for working at height, squatting positions, or frequent movement on uneven surfaces.
• Arm exoskeleton: Helps formworkers, plasterers, and electricians keep their arms above shoulder height without excessive effort.
• Electromechanical construction exoskeleton: Combines active and passive assistance for maximum versatility, ideal for sites with varying tasks.

Concrete Benefits of Exoskeletons for Construction

The benefits of a construction exoskeleton go beyond reducing fatigue. They directly impact safety, productivity, and regulatory compliance. Here are the main advantages documented by field studies.

Reduction of Musculoskeletal Disorders (MSDs)

MSDs account for 87% of occupational diseases in the construction industry (source: INRS). An exoskeleton can reduce the load on stressed joints and muscles by 30 to 50%. For example, on a bricklaying site, the use of exoskeletons reduced sick leave related to lower back pain by 40%.

• Protection of critical areas: Lower back, knees, shoulders, and wrists are the most exposed.
• Long-term prevention: Fewer repeated micro-traumas mean a longer, healthier career.
• Case study: A small bricklaying company saw a 35% reduction in work stoppages after 6 months of using back exoskeletons.

Improved Productivity and Quality

Less fatigue = more endurance. Operators can work longer without a drop in performance. On repetitive tasks, productivity gains can reach 20%.

• Time savings: Movements are faster and more precise thanks to stable assistance.
• Fewer errors: Better posture reduces rework and installation defects.
• Concrete example: A formworker equipped with a leg exoskeleton can work 2 hours longer without significant fatigue.

Compliance with Safety Standards

Construction exoskeletons must meet strict standards to ensure user safety. The EN ISO 13482:2014 standard is the reference for personal robots. CE certification is mandatory for professional use.

• Integration into the Single Document: The exoskeleton can be mentioned as a preventive measure in the DUER (Single Risk Assessment Document).
• Mandatory training: 2 to 4 hours of training is required for optimal use.
• PPE compatibility: Modern models are designed to be worn with helmets, harnesses, gloves, and safety shoes.

Buying Guide: How to Choose a Construction Exoskeleton?

Choosing the right construction exoskeleton is crucial to maximise benefits. This guide helps you evaluate essential criteria, compare brands, and estimate the return on investment.

Essential Selection Criteria

Before buying, ask yourself these questions:

• Type of task: Load carrying (back), working at height (legs), arms above shoulder (arms).
• Weight and bulk: A passive model should weigh less than 5 kg to avoid hindering movement.
• Battery life: For electric models, aim for at least 8 hours of autonomy.
• PPE compatibility: Check that the exoskeleton can be worn with your safety equipment.

Brand and Model Comparison

Here is an overview of the main brands available on the market:

Feedback: 90% of Exyvex users recommend the product for comfort and efficiency.

Budget and Return on Investment

The price of a construction exoskeleton ranges from £1,300 to £6,900 depending on the type and features. The ROI is quick:

• Reduction in sick leave: Average cost of an MSD: £13,000 (treatment, benefits, replacement).
• Productivity gain: 20% on assisted tasks, equating to several thousand pounds per year.
• Payback period: Possible within 6 to 12 months for a team of 5 to 10 operators.

Financial Aid and Reimbursement for Construction Exoskeletons

The investment in an exoskeleton can be eased through several support schemes. Here is how to finance your equipment.

Coverage by Social Security and OPCOs

Although the exoskeleton is not directly reimbursed by Social Security, aid is available:

• OPCO Construction: Possible funding through the skills development plan (training and purchase).
• CARSAT: Grants for construction SMEs as part of occupational risk prevention (up to 50% of the cost).
• Innovation Tax Credit (CII): For companies investing in innovative equipment.

Example of a Financial Package

Take the example of an Exyvex exoskeleton priced at £4,500:

• CARSAT grant: £2,250 (50%).
• OPCO aid: £850 (subject to conditions).
• Net cost: £1,400, an investment quickly recouped.

Testimonials and Case Studies in Construction

Feedback is unanimous: the construction exoskeleton is a game-changer. Here are two concrete examples.

Testimonial from a Bricklayer

Jean, a bricklayer for 15 years: “Since I started using the back exoskeleton, I no longer have pain at the end of the day. I can carry blocks without fear.” Result: 70% reduction in fatigue and fewer lower back pains after 6 months of use.

Case Study: Formwork Site

A formwork company with 20 employees deployed 5 leg exoskeletons for working at height. The results are impressive:

• -35% work stoppages related to knee pain.
• +15% productivity on formwork tasks.
• 95% team satisfaction.
• Return on investment: 8 months.

FAQ on Construction Exoskeletons

Have questions? Here are the answers to the most common queries.

Frequently Asked Questions

• What are the benefits of an exoskeleton for construction? Reduction of MSDs (30-50%), improved productivity (15-20%), compliance with safety standards, reduced absenteeism.
• How much does a construction site exoskeleton cost? Between £1,300 and £6,900 depending on the type (back, legs, arms) and features (passive or electromechanical). Financial aid can reduce the cost by 50 to 70%.
• Is the construction exoskeleton reimbursed by Social Security? No direct reimbursement, but grants via CARSAT, OPCO Construction, and the Innovation Tax Credit are possible.
• Which construction trades can use an exoskeleton? Bricklayers, formworkers, handlers, plasterers, roofers, carpenters, and all trades involving load carrying, working at height, or repetitive movements.
• How to choose an exoskeleton for working at height? Opt for a leg model (quadriceps/knee assistance), lightweight (< 4 kg), with good battery life (8h+) and compatible with safety harnesses.