29 CFR 1910.216 - Mills and calenders in the rubber and plastics industries.

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§ 1910.216 Mills and calenders in the rubber and plastics industries.
(a) General requirements—
(1) -(2) [Reserved]
(3) Auxiliary equipment. Mechanical and electrical equipment and auxiliaries shall be installed in accordance with this section and subpart S of this part.
(4) Mill roll heights. All new mill installations shall be installed so that the top of the operating rolls is not less than 50 inches above the level on which the operator stands, irrespective of the size of the mill. This distance shall apply to the actual working level, whether it be at the general floor level, in a pit, or on a platform.
(b) Mill safety controls—
(1) Safety trip control. A safety trip control shall be provided in front and in back of each mill. It shall be accessible and shall operate readily on contact. The safety trip control shall be one of the following types or a combination thereof:
(i) Pressure-sensitive body bars. Installed at front and back of each mill having a 46-inch roll height or over. These bars shall operate readily by pressure of the mill operator's body.
(ii) Safety triprod. Installed in the front and in the back of each mill and located within 2 inches of a vertical plane tangent to the front and rear rolls. The top rods shall be not more than 72 inches above the level on which the operator stands. The triprods shall be accessible and shall operate readily whether the rods are pushed or pulled.
(iii) Safety tripwire cable or wire center cord. Installed in the front and in the back of each mill and located within 2 inches of a vertical plane tangent to the front and rear rolls. The cables shall not be more than 72 inches above the level on which the operator stands. The tripwire cable or wire center cord shall operate readily whether cable or cord is pushed or pulled.
(2) [Reserved]
(3) Auxiliary equipment. All auxiliary equipment such as mill divider, support bars, spray pipes, feed conveyors, strip knives, etc., shall be located in such a manner as to avoid interference with access to and operation of safety devices.
(c) Calender safety controls—
(1) Safety trip, face. A safety triprod, cable, or wire center cord shall be provided across each pair of in-running rolls extending the length of the face of the rolls. It shall be readily accessible and operate whether pushed or pulled. The safety tripping devices shall be located within reach of the operator and the bite.
(2) Safety trip, side. On both sides of the calender and near each end of the face of the roll, there shall be a cable or wire center cord connected to the safety trip. They shall operate readily when pushed or pulled.
(d) Protection by location—
(1) Mills. Where a mill is so installed that persons cannot normally reach through, over, under, or around to come in contact with the roll bite or be caught between a roll and an adjacent object, then, provided such elements are made a fixed part of a mill, safety control devices listed in paragraph (b) of this section shall not apply.
(2) Calenders. Where a calender is so installed that persons cannot normally reach through, over, under, or around to come in contact with the roll bite or be caught between a roll and an adjacent object, then, provided such elements are made a fixed part of a calender, safety control devices listed in paragraph (c) of this section shall not apply.
(e) Trip and emergency switches. All trip and emergency switches shall not be of the automatically resetting type, but shall require manual resetting.
(f) Stopping limits—
(1) Determination of distance of travel. All measurements on mills and calenders shall be taken with the rolls running empty at maximum operating speed. Stopping distances shall be expressed in inches of surface travel of the roll from the instant the emergency stopping device is actuated.
(2) Stopping limits for mills. All mills irrespective of the size of the rolls or their arrangement (individually or group-driven) shall be stopped within a distance, as measured in inches of surface travel, not greater than 11/2 percent of the peripheral no-load surface speeds of the respective rolls as determined in feet per minute.
(3) Stopping limits for calenders.
(i) All calenders, irrespective of size of the rolls or their configuration, shall be stopped within a distance, as measured in inches of surface travel, not greater than 13/4 percent of the peripheral no-load surface speeds of the respective calender rolls as determined in feet per minute.
(ii) Where speeds above 250 feet per minute as measured on the surface of the drive roll are used, stopping distances of more than 13/4 percent are permissible. Such stopping distances shall be subject to engineering determination.
[39 FR 23502, June 27, 1974, as amended at 49 FR 5323, Feb. 10, 1984; 61 FR 9240, Mar. 7, 1996]

Title 29 published on 2013-07-01

The following are only the Rules published in the Federal Register after the published date of Title 29.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-04-18; vol. 79 # 75 - Friday, April 18, 2014
    1. 79 FR 21848 - Record Requirements in the Mechanical Power Presses Standard
      GPO FDSys XML | Text
      DEPARTMENT OF LABOR, Occupational Safety and Health Administration
      Final rule; confirmation of effective date.
      The direct final rule published on November 20, 2013 (78 FR 69543), became effective as a final rule on February 18, 2014. For the purposes of judicial review, OSHA considers April 18, 2014, the date of issuance of the final rule.
      29 CFR Part 1910

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United States Code
U.S. Code: Title 5 - GOVERNMENT ORGANIZATION AND EMPLOYEES
U.S. Code: Title 20 - EDUCATION
U.S. Code: Title 29 - LABOR
U.S. Code: Title 31 - MONEY AND FINANCE
U.S. Code: Title 33 - NAVIGATION AND NAVIGABLE WATERS
U.S. Code: Title 40 - PUBLIC BUILDINGS, PROPERTY, AND WORKS
U.S. Code: Title 49 - TRANSPORTATION
Statutes at Large
Public Laws

Title 29 published on 2013-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 29 CFR 1910 after this date.

  • 2014-04-18; vol. 79 # 75 - Friday, April 18, 2014
    1. 79 FR 21848 - Record Requirements in the Mechanical Power Presses Standard
      GPO FDSys XML | Text
      DEPARTMENT OF LABOR, Occupational Safety and Health Administration
      Final rule; confirmation of effective date.
      The direct final rule published on November 20, 2013 (78 FR 69543), became effective as a final rule on February 18, 2014. For the purposes of judicial review, OSHA considers April 18, 2014, the date of issuance of the final rule.
      29 CFR Part 1910