Venture capitalists are betting Chinese robots can go global.

Shenzhen-based Hai Robotics, a maker of robots for warehouses, is close to raising about $170 million from investors at a valuation higher than $2 billion, including the new capital, according to two people familiar with the matter. The previously unreported fundraising comes as the six-year-old startup, whose business is concentrated in China, is trying to expand to the U.S. and other foreign markets.