Combination chains are made of cast block links and steel sidebars alternately spaced.
The combination chains have pear-shaped barrels to provide additional metal where the chain engages the sprocket teeth to increase the service life of the chain.
Combination chains are well suited for abrasive, gritty or corrosive materials and are a less expensive option to their all steel counterparts.
Power-Link does yearly tests on pintle and combination chains through a third party testing company.
Mill test reports are available. Power-Link Catalog