The overall ratings of 7 Machinery stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Westinghouse Air Brake Technologies Corporation (WAB) is having a tough week. The company’s rating falls from a C to a D. Westinghouse Air Brake Technologies Corporation is a provider of value-added, technology-based products and services for the global rail industry. For more information, get Portfolio Grader’s complete analysis of WAB stock.

Ingersoll-Rand Plc (IR) declines this week from a C to a D. Ingersoll-Rand Plc is a diversified, global company that provides a diverse range of products and services for a wide range of industries. For more information, get Portfolio Grader’s complete analysis of IR stock.

This week, Greenbrier Companies, Inc. (GBX) drops from a C to a D rating. Greenbrier Companies, Inc. supplies transportation equipment and services to the railroad and related industries. For more information, get Portfolio Grader’s complete analysis of GBX stock.

Trinity Industries, Inc. (TRN) experiences a ratings drop this week, going from last week’s C to a D. Trinity Industries, Inc. is engaged in the manufacture and sale of railcars and railcar parts, inland barges, structural wind towers, concrete and aggregates, asphalt, highway products and structural steel components. The company also gets F’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of TRN stock.

This is a rough week for TriMas Corporation (TRS). The company’s rating falls to D from the previous week’s C. TriMas Corporation manufactures trailer products, recreational accessories, packaging systems, energy products and industrial specialty products for the commercial, manufacturing, and consumer markets. For more information, get Portfolio Grader’s complete analysis of TRS stock.

L.S. Starrett Company Class A’s (SCX) rating weakens this week, dropping to a F versus last week’s D. L.S. Starrett Company Class A manufactures products, including tools and blades, for industrial, professional and consumer markets. The company also gets F’s in sales growth, operating margin growth, earnings growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of SCX stock.

Slipping from a C to a D rating, CNH Industrial NV (CNHI) takes a hit this week. CNH Industrial NV designs, produces, and sells agricultural and construction equipment, trucks and commercial vehicles, and engines and transmissions for industrial and marine applications worldwide. The company also gets F’s in sales growth, operating margin growth, earnings growth, earnings revisions, and free cash flow. For more information, get Portfolio Grader’s complete analysis of CNHI stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.