HQ 089944

September 19, 1991

CLA-2 CO:R:C:M 089944 KCC

CATEGORY: Classification

TARIFF NO.: 8421.29.00; 8421.99.00

Mr. Dennis Egleston

Burlington Air Imports

3700 Vanguard Drive

Suite G

Fort Wayne, Indiana 46809

RE: Filtering System for Molding Machine; Parts; GRI 1; machine;

Note 5, Section XVI; EN 84.21; parts; Note 2(a), Section

XVI; General EN (II) Parts, Section XVI

Dear Mr. Egleston:

This is in response to your letter dated June 4, 1991, to

Customs in New York, on behalf of Patt Filtration (in the future

to be known as P.M.H.), regarding the tariff classification of a

filtering system for molding machines and its parts under the

Harmonized Tariff schedule of the United States Annotated

(HTSUSA). Your letter and descriptive information were forwarded

to this office for a response.

FACTS:

The merchandise at issue is the Rotary II Meltfiltration

System and its parts. The Rotary II is a rotary filtration

system that can be mounted onto any extruder, such as polymer,

food and fiber (nylon) extruders. As material (such as molten

polymers) passes through the Rotary II screen pack, any

contaminants in the material are trapped on the surface and the

inside layers of the screen pack.

Your letter indicated that you were advised by Canadian

Customs that the filtering system was classifiable under

subheading 8477.20.00, HTSUSA, as machinery for working rubber or

plastics...extruders.

ISSUE:

Whether the filtering system for molding machines is

classified under subheading 8421.29.00, HTSUSA, as

"Centrifuges...filtering or purifying machinery and apparatus,

for liquids or gases; parts thereof...Filtering or purifying

machinery and apparatus for liquids...Other...Other," or under

subheading 8477.20.00, HTSUSA, as "Machinery for working rubber

or plastics or for the manufacture of products from these

materials, not specified or included elsewhere in this chapter;

parts thereof...Extruders...Of the type used for processing

rubber or other thermosetting materials...Other, including

multiple screw".

LAW AND ANALYSIS:

The classification of merchandise under the HTSUSA is

governed by the General Rules of Interpretation (GRI's). GRI 1,

HTSUSA, states in part that "for legal purposes, classification

shall be determined according to the terms of the headings and

any relative section or chapter notes..." The competing headings

in this case are headings 8421 and 8477, HTSUSA. The headings

describe:

8421 Centrifuges...filtering or purifying machinery and

apparatus, for liquids or gases; parts thereof...

8421.29.00 Filtering or purifying machinery and

apparatus for liquids...Other...Other.

* * * * * * * * * * * *

8477 Machinery for working rubber or plastics or for

the manufacture of products from these materials,

not specified or included elsewhere in this

chapter; parts thereof...

8477.20.00 Extruders...Of the type used for processing

rubber or other thermosetting

materials...Other, including multiple screw.

For classification within subheading 8421.29.00, HTSUSA, the

filtering system must be "machinery or apparatus." Chapter 84,

HTSUSA, is within Section XVI, HTSUSA, making the Section XVI

notes applicable to this classification. Note 5, Section XVI,

HTSUSA, defines "machine" as "any machine, machinery, plant,

equipment, apparatus or appliance cited in the headings of

chapter 84 or 85." The filtering system satisfies this

description. It is a machine to filter out contaminants (heading

8421, HTSUSA).

Heading 8421, HTSUSA, specifically describes filtering or

purifying machinery and apparatus. The Explanatory Note 84.21 of

the Harmonized Commodity Description and Coding System (HCDCS),

states that heading 8421, HTSUSA, covers filters and purifiers of

all types (physical or mechanical, chemical, magnetic, electro-

magnetic, electrostatic, etc.). HCDCS, Vol. 3, p. 1181.

Moreover, the filtering system in question is similar to the

filter presses in Explanatory Note 84.21 which are described as

consisting:

of filtering chambers formed by readily detachable vertical

filter plates and frames; these are covered by a filtering

medium (cloth, cellulose, etc.) and are held in place by a

screw or press mechanism. The liquid is forced through the

cells by a pump, and the chambers may be heated internally

by steam, etc. The filtrate is drawn from the press and the

residue collects in cakes between the plates. Filter

presses are used for filtering or clarifying many liquids

(e.g., in the chemical industry, the sugar industry, in

brewing, wine making...in the manufacture of ceramics, man-

made textiles, etc).

HCDCS, Vol. 3, p. 1182. The Explanatory Notes, although not

dispositive, are to be looked to for proper interpretation of the

HTSUSA. 54 Fed. Reg. 35127, 35128 (August 23, 1989). The Rotary

II is a filtration system as described by subheading 8421.29.00,

HTSUSA, as it is designed to remove any contaminants from

polymers, food and fibers that pass through its screens.

Additionally, Patt describes the Rotary II system has having only

two movable parts, the disc and drive gear. The filtering system

is similar to the filter presses as the rotary disc contains a

series of specially shaped cavities with drainage holes into

which removable wire mesh screens or screen packs are tightly

fitted.

Heading 8477, HTSUSA, is not an appropriate classification

for the filtering system pursuant to Note 2, Chapter 84, Section

XVI, HTSUSA. Pursuant to this note a machine or appliance which

answers to a description in one or more of the headings 8401 to

8424 and at the same time to a description in one or more of the

headings 8425 to 8480 is to be classified under the appropriate

heading of the former group and not the latter. Since a more

specific heading pertains to the filtering system for the

molding machine, heading 8477, HTSUSA, is not a proper

classification.

You requested that parts of the filtering system be

classified under subheading 8421.99.00, HTSUSA, as parts of

filtering or purifying machinery and apparatus. Parts of

filtering or purifying machinery and apparatus of heading 8421,

HTSUSA, "are in all cases classified in their own appropriate

heading even if specially designed to work as part of a specific

machine." Note 2(a), Section XVI, HTSUSA; and HCDCS, General

Explanatory Note (II), Section XVI, Vol. 3, p. 1131. Therefore,

parts of filtering or purifying machinery and apparatus are only

classified in subheading 8421.99.00, HTSUSA, if they are not

classifiable in their own heading.

HOLDING:

The filtering system for molding machines is properly

classified in subheading 8421.29.00, HTSUSA, as "Centrifuges,

including centrifugal dryers; filtering or purifying machinery

and apparatus, for liquids or gases...Filtering or purifying

machinery and apparatus for liquids."

Parts of filtering and purifying machinery and apparatus are

classified in their own appropriate heading even if specially

designed to work as part of a specific machine and will only be

classified in subheading 8421.99.00, HTSUSA, if they can not be

classifiable in their own heading.

Sincerely,

John Durant, Director

Commercial Rulings Division