CLA-2-84:S:N:N1:103 810402
Ms. Laura B. Green
Coughlin
277 Southfield Parkway, Suite 120
Forest Park, GA 30050
RE: The tariff classification of chain conveyors and chain
tensioners from Great Britain
Dear Ms. Green:
In your letter dated May 10, 1995 on behalf of Long Airdox
Co. you requested a tariff classification ruling.
The models LW-1030 and LW-1035 chain-type transfer conveyors
or stage loaders are used with longwall mining systems. Such
systems utilize a shearing machine, conveyors and self-advancing
hydraulic roof supports in order to continuously mine coal. The
roof supports are installed side by side along the face of an
underground coal seam, thus forming an overhead canopy which
prevents the mine roof from collapsing as the coal is sheared
off. The coal falls onto a face conveyor which ends at the
transfer conveyor. One end of the transfer conveyor is connected
at a right angle to the face conveyor, while the discharge end is
normally attached to a traveling dolly. This enables the
transfer conveyor to move as the longwall mining system moves
forward.
The LW-1030 utilizes a sigma section pan design and a 22 or
26 millimeter round link conveyor chain. The unit is 65 feet
long, 6 feet wide, and weighs 48,000 pounds. The conveyor chain
is 30 inches wide, moves at 280 feet per minute, and can
transport up to 26 tons per minute. The LW-1035 consists of all-
welded pan sections which are pivot mounted to compensate for
undulations in the mine floor. It is 35 feet long, 76 inches
wide, and weighs 32,000 pounds. The chain conveyor is 30 inches
wide, moves at 250 or 325 feet per minute, and can transport up
to 25 tons per minute.
You also inquired about models RA 15, RA 25, and RA 35 chain
tensioners. These are hydraulic motors used to tension the chain
on a transfer conveyor or face conveyor to a pre-set load.
The applicable subheading for the LW-1030 and LW-1035
transfer conveyors or stage loaders will be 8428.31.0000,
Harmonized Tariff Schedule of the United States (HTS), which
provides for other lifting, handling, loading or unloading
machinery...: other continuous-action elevators and conveyors,
for goods or materials: specially designed for underground use.
The rate of duty will be 1.6 percent ad valorem.
The applicable subheading for the chain tensioners will be
8412.29.80, HTS, which provides for other engines and motors:
hydraulic power engines and motors: other: other. The rate of
duty will be 2.7 percent ad valorem.
This ruling is being issued under the provisions of Section
177 of the Customs Regulations (19 C.F.R. 177).
A copy of this ruling letter should be attached to the entry
documents filed at the time this merchandise is imported. If the
documents have been filed without a copy, this ruling should be
brought to the attention of the Customs officer handling the
transaction.
Sincerely,
Jean F. Maguire
Area Director
New York Seaport