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Heflin Bolt-in Liner Attachment
Two Methods of Liner Attachment
There are two methods of liner attachment: weld-in or bolt-in. Heflin recommends bolt-in liners for
thefollowing reasons:
• Bolt-in liner installations = substantial savings in manpower and machinery downtime
• Bolt-in liners install quickly
• Bolt-in liners are easier to replace
• Liner attachmentmaintains integrity, even when liners are extremely worn
Bolt-in liners can be installed manually or with installation tools, depending upon the structure. Each
requires countersunk holes in the linerplate, which Heflin is well equipped to provide. Degree of
countersunk depends on material, thickness, and application.
Countersunk holes are flame cut because machining is often not practical.Countersunk holes allow
full utilization of the liner and extended wear life – no more premature change-out due to excess wear
in the bolt hole area.

Applications
Crusher liners,
apron feeder
liners,chutes, and
hopper liners:

These applications are excellent for bolt-in liner attachment, as an alternative
to weld-in liners. Manual installation of bolt-in liners using flat head bolts (withor without key slots), goes quickly and easily. Heflin can offer appropriate bolt
and nut sizes for your particular application.

Trucks:

We suggest using HUCKBOLT® fasteners as an alternative toconventional
weld-in liners. The HUCK bolting system uses hydraulic ram power for
attachments and is excellent for new equipment installation. It utilizes
90 degree full countersunk holes.
Theholes in the liners and the holes in the structural material must
coincide. This is the basic principle to remember. The holes through the
structural material must be clear of any substructure so thatthere will be
room to install the bolt and nut.
We recommend perimeter welding the leading edges of liners to eliminate
build up of material between the structural material and the liner. An...