HNA offers four different type of Liner for all popular mud pumps to suit any
drilling condition, including Premium Chromium Liners, Ceramic Liners,
Chromium-plated Liners and Hardened Liners.
Premium Chromium Liners
HNA premium liners combine the strength of a forged steel outer shell with the
abrasion and corrosion resistance of a high chromium iron inner sleeve. These
liners feature a centrifugally cast high chrome iron sleeve which is machined
and heat treated to a minimum uniform bore hardness of 62 RC. Each liner is
machined to close tolerances to assure ease of installation and long liner life
with the inside diameter of these premium liners honed to a mirror-like finish
for smooth even wear during the life of the liner. HNA premium liners are made
for superior performance under tough corrosive and abrasive conditions.
HNA ceramic liners combine the strength of a forged steel outer shell with the
abrasion and corrosion resistance of a ceramic inner sleeve. We provide
Zirconia(ZrO3) Sleeves as well as Alumina(Al2O3.) sleeves., of which Ziconia
exhibits better impact strength, higher hardness and be honed to finer surface
finishes than alumina.
HNA offers chrome-plated liners made from premium forged steel with the core
plated by chrome.The chrome-plated liners have hardening characteristics of 58
to 62 Rockwell C hardness.
HNA hardened liners offer economy in a liner that is made for normal to mildly
corrosive mud conditions.These liners are hardened and heat treated under
strict quality control to a minimum of 60 RC hardness and a depth of 0.125
inches.Each liner is honed to a mirror-like finish for smooth and even wear
during the life of the liner and is machined to close tolerances to assure easy
installation and long life.