Unlike previous battles, where American manufacturers have often sought to cut labor costs by threatening to close plants or move operations to the South or overseas, Dr Pepper Snapple is not making such threats.

For unions across the country, the stakes are high because if the Mott’s workers lose this showdown, it could prompt other profitable companies to push for major labor concessions. Such a lengthy strike is unusual at a time when work stoppages have become much less common than they once were.

Strikes and other work stoppages nationwide have plunged in recent decades, to 126 last year from 831 in 1990, according to the Bureau of National Affairs, as unions represent fewer workplaces and workers increasingly recognize the considerable pain and risk involved in walkouts.

“Companies have asked for concessions throughout the history of the labor movement because they’ve faced hard times and needed help to survive,” said Stuart Appelbaum, president of the Retail, Wholesale and Department Store Union, which represents the Mott’s workers. “Dr Pepper Snapple is different. They don’t even show the respect to lie to us. They just came in and said, ‘We have no financial need for this, but we just want it anyway because we figure we can get away with it.’ ”

Negotiations have not been held since May, and Dr Pepper Snapple says it has no intention of resuming them. The company has continued to operate the plant using replacement workers and says that production of apple juice and apple sauce is growing each day. Union officials say production is one-third of what it was before the walkout.

The Mott’s workers voted 250 to 5 to strike, walking out on May 23. They were furious about the company’s demands to cut their wages by about $3,000 a year, freeze pensions, end pensions for new hires, reduce the company’s 401(k) retirement contributions and increase employees’ costs for health care benefits. Dr Pepper Snapple said it was merely seeking to bring its benefits more in line with those of its other plants.