Allor Mfg Inc specializes in heavy duty chain with dummy bar chain being one of the heaviest. We offer many innovative designs and improvements to reduce joint lock up and wear by using high quality graphite plugged bronze liners, hardened and ground stainless steel pins, stronger locking elements, hardened mating stop surfaces, and oversized parts when applicable to reduce rebuild costs. The Dummy Bar heads are rebuilt back to original specs with improved hardened stainless steel pocket lips for longer wear and increased life.