The overall ratings of 8 Machinery stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This is a rough week for WABCO Holdings Inc. (WBC). The company’s rating falls to D from the previous week’s C. WABCO Holdings Inc. manufactures and sells control systems, including advanced braking, stability, suspension, transmission control and air compressing and processing systems, that improve vehicle performance and safety and reduce overall vehicle operating costs. For more information, get Portfolio Grader’s complete analysis of WBC stock.

Graco Inc. (GGG) experiences a ratings drop this week, going from last week’s C to a D. Graco Inc. supplies technology for the management of fluids in both industrial and commercial applications. The company also gets F’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of GGG stock.

Slipping from a C to a D rating, Flowserve Corporation (FLS) takes a hit this week. Flowserve Corporation designs, manufactures, distributes, and services industrial flow management equipment throughout the world. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of FLS stock.

American Railcar Industries, Inc. (ARII) gets weaker ratings this week as last week’s C drops to a D. American Railcar Industries, Inc. designs, manufactures, and sells hopper and tank railcars in North America. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of ARII stock.

Hurco Companies, Inc. (HURC) earns a D this week, moving down from last week’s grade of C. Hurco Companies, Inc. designs and produces interactive computer controls, software, and computerized machine systems for the worldwide metal cutting and metal forming industry. For more information, get Portfolio Grader’s complete analysis of HURC stock.

This week, Gorman-Rupp Company’s (GRC) rating worsens to a D from the company’s C rating a week ago. Gorman-Rupp Company designs, manufactures, and sells pumps and related fluid control equipment. For more information, get Portfolio Grader’s complete analysis of GRC stock.

Actuant Corporation Class A (ATU) declines this week from a C to a D. Actuant Corporation Class A is a global manufacturer of industrial products and systems for the energy, electrical, engineered solutions, and other industrial markets. The company also gets F’s in operating margin growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of ATU stock.

This week, L.S. Starrett Company Class A (SCX) drops from a D to a F rating. 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 momentum, and free cash flow. For more information, get Portfolio Grader’s complete analysis of SCX 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.