The CEO of the car company Tesla, deemed as the 'factory of the future', has come under fire because of the 'harsh conditions' at his plant, which have reportedly been so bad, one worker recalls seeing another 'pass out, hit the floor like a pancake and smash their face open.'

Tesla employees told the Guardian that Elon Musk, 45, ignored the working conditions at the factory in Fremont, California, because he regarded production goals higher than his employees' safety.

According to the report, ambulances have been called more than 100 times since 2014 and workers - who said they've worked 12-hour shifts, six days a week - have experienced fainting spells, dizziness, seizures, abnormal breathing and chest pains.

While he says he is aware of the difficult work his employees have to do, Musk says he finds the employees' claims 'false' and 'hurtful'.

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CEO Elon Musk, 45, - pictured at the White House in January - has come under fire because of the 'harsh conditions' his employees are under while working at Tesla

His employees told the Guardian that the company was not concerned about the working conditions at the factory in Fremont, California, because it regarded production goals higher than his employees' safety. Pictured here (left to right) are Michael Sanchez, Richard Ortiz and Jonathan Galescu who are speaking with State Senator Bob Wieckowski (second from right) about changing the conditions at Tesla

'It’s incredibly hurtful, and, I think, false for anyone to claim that I don’t care,' the CEO told the Guardian.

'[My desk] is in the worst place in the factory, the most painful place, It’s not some comfortable corner office.

'I knew people were having a hard time, working long hours, and on hard jobs. I wanted to work harder than they did, to put even more hours in, because that’s what I think a manager should do.'

But many of his employees - who work alongside robots at the factory - are saying that's far from what a manager should do and are calling for drastic changes.

'I’ve seen people pass out, hit the floor like a pancake and smash their face open,' Jonathan Galescu, a production technician at Tesla said. 'They just send us to work around him while he’s still lying on the floor.'

Another worker at the plant, Richard Ortiz said: 'It’s like you died and went to auto-worker heaven, everything feels like the future but us.'

Founded in 2003, Tesla has been hailed as the future of cars since it released one of the best selling electric cars, Tesla Roadster, the first ever electric sports car in 2008. Just four years later, it released the Model S, a luxury sedan that was the world's best plug-in electric car in 2015 and 2016.

Several reports from employees have sparked anger and a growing concern over how Tesla employees are treated

'I’ve seen people pass out, hit the floor like a pancake and smash their face open,' Jonathan Galescu, (pictured) a production technician at Tesla said. 'They just send us to work around him while he’s still lying on the floor.'

Another worker at the plant, Richard Ortiz (pictured) said: 'It’s like you died and went to auto-worker heaven, everything feels like the future but us'

The company is expected to revolutionize the carbon-reliant auto industry and has already overtaken the sales of giants like Ford.

While the company's success has grown, so has the alleged horror of working with Musk.

The complaints first came to light in 2015, when former employees described their experience with Musk to Bloomberg reporter Ashlee Vance.

A former employee, who spoke anonymously said: 'Elon's worst trait by far, in my opinion, is a complete lack of loyalty or human connection.

'Many of us worked tirelessly for him for years and were tossed to the curb like a piece of litter without a second thought.

'Maybe it was calculated to keep the rest of the workforce on their toes and scared; maybe he was just able to detach from human connection to a remarkable degree.

'What was clear is that people who worked for him were like ammunition: used for a specific purpose until exhausted and discarded.'

And then in February, a blog post by former employee Jose Moran shed more light on the alleged conditions workers when he spoke of injured employees being too 'afraid' to speak out about the company.

The company's recordable incident rate (TRIR) - an official measure of injuries and illnesses - was above the industry average between 2013 and 2016, the Guardian reported. Earlier this year, its TRIR was 32% better than average but many employees are still demanding changes

In 2013 three employees were severely burned while working at the factory, after they were sprayed by molten aluminium. The company was fined $71,000 after a state investigation revealed that Tesla had failed to maintain its equipment

'A few months ago, six out of eight people in my work team were out on medical leave at the same time due to various work-related injuries,' he wrote.

'I hear that ergonomics concerns in other departments are even more severe. Worst of all, I hear co-workers quietly say that they are hurting but they are too afraid to report it for fear of being labelled as a complainer or bad worker by management. '

The company's recordable incident rate (TRIR) - an official measure of injuries and illnesses - was above the industry average between 2013 and 2016, the Guardian reported. Earlier this year, its TRIR was 32% better than average.

But this has not slowed down workers who are demanding changes to how the car company operates.

In April, three employees, including Jonathan Galescu and Richard Ortiz met with the Fremont's state senator to talk about keeping Tesla accountable for how it allegedly treated its workers.