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  • gantry crane iso certificate

    gantry crane iso certificate

    ISO TR 16880:2004 collects the design and manufacturing requirements and recommendations for bridge and gantry cranes in ISO and IEC International Standards. ISO 9001 Certificate_Certificates: – Overhead Crane | Gantry … Read More

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    500kg chain hoist Iran

    Grade 8 Lifting Chain – Chain Diameter 7mm to 32mm, WLL 1500kg to 31,500kg – Grade 'T' (8/80) alloy steel lifting chain specifically designed for chain slings, chain conforms to … Read More

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  • Electric hoist hook does not respond to the pendant. Possible Cause: (i) No voltage at hoist main line or branch circuit switch; branch line fuse blown or circuit breaker tripped. (ii) Phase failure, open circuit, grounded or faulty connection in one line of supply system (hoist wiring, reversing contactor, motor leads or windings).

  • Abnormal Noises Of Electric Hoist – More Safe Enterprises

    Apr 08, 2014 · Generally speaking, it is trouble on the contactor if the abnormal noises happened in the control loop. You have to change it if it can't be repaired.After the repairing, the noises will disappear by itself. If the electric motor make abnormal noise, you should stop immediately.

  • 1910.179(e)(2)(i) A crane shall be provided with bumpers or other automatic means providing equivalent effect, unless the crane travels at a slow rate of speed and has a faster deceleration rate due to the use of sleeve bearings, or is not operated near the ends of bridge and trolley travel, or is restricted to a limited distance by the nature of the crane operation and there is no hazard of

  • A main line contactor operated by a switch or pushbutton in the pendant pushbutton station. 1910.179(g)(5)(iv) The hoisting motion of all electric traveling cranes shall be provided with an overtravel limit switch in the hoisting direction. 1910.179(g)(5)(v)

  • Electrical Drives fo r Crane Application 135 Fig. 2. Power and torque requirements for trav el motion, a) and b) wi thout wind influence, c) and d) with wind influence. Fig. 3. Power and torque requirements for hoist a) and b) without load, c) and d) with load. The hoist torque-speed characteristic is shown in Fig.3a) for an unloaded hook. The

  • Hoist Motion: The motion of a crane which raises and lowers a load. Holding Brake: A brake that automatically prevents movement when there is no power. Hook: The attachment portion of the hoist or lifter where the load is attached directly or through a below the hook device or sling.

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  • Hoist Terminology – Washington Crane

    A friction brake for a hoist that is automatically applied and prevents motion when power to the brake is de-energized.

  • (44) Hoist motion means that motion of a crane which raises and lowers a load. (45) Load means the total superimposed weight on the load block or hook. (46) The load block is the assembly of hook or shackle, swivel, bearing, sheaves, pins, and frame suspended by the hoisting rope.

  • Oct 28, 2019 · What is a Hoist? A hoist is a machine that performs a single task very well: lifting and lowering a load on a vertical plane (Figure 1, Motion 3). Hoists are situated on the primary horizontal beam of the crane, called the bridge girder. The hoist, when connected to the trolley (Figure 1, Motion 2), moves back and forth across the bridge girder.

  • A main line contactor operated by a switch or pushbutton in the pendant pushbutton station. 1910.179(g)(5)(iv) The hoisting motion of all electric traveling cranes shall be provided with an overtravel limit switch in the hoisting direction. 1910.179(g)(5)(v)

  • (44) Hoist motion means that motion of a crane which raises and lowers a load. (45) Load means the total superimposed weight on the load block or hook. (46) The load block is the assembly of hook or shackle, swivel, bearing, sheaves, pins, and frame suspended by the hoisting rope.

  • Crane, Hoist, Sling Safety Program: Maintenance and

    Before starting the bridge or trolley motion of a crane. Intermittently during travel of the crane when approaching persons in the path of the load. Before leaving a crane or hoist unattended, the operator shall land any attached load, place controllers in the off position, and de-energize the main switch of the specific crane, if applicable.

  • A main line contactor operated by a switch or pushbutton in the pendant pushbutton station. The hoisting motion of all electric traveling cranes shall be provided with an overtravel limit switch in the hoisting direction.

  • Feb 01, 2002 · An over-hauling hoist load turns the motor into a generator. The energy generated returns power to the supply line or other type of electrical absorption load. The power losses put an electrical load, or drag, on the crane motor, which is now a generator, and control the lowering speed to a safe value.

  • double girder bridge cranes and c) Under-running single girder bridge cranes. Electric Overhead Traveling (EOT) Cranes come in various types: 1) Single girder cranes – The crane consists of a single bridge girder supported on two end trucks. It has a trolley hoist mechanism that runs on the bottom flange of the bridge girder.

  • Oct 23, 2017 · A reversing contactor is an assembly of two contactors (one for each direction) joined by a mechanical and/or electrical interlock to ensure only one contactor is energized at a time. Auxiliary Contacts. Auxiliary contacts allow additional operations to take place when the contactor is energized.

  • Overhead crane terminology | Konecranes

    HOIST: A machinery unit that is used for lifting or lowering a load. HOIST, AUXILIARY: A supplemental hoisting unit, usually designed to handle lighter loads at a higher speed than the main hoist. HOIST, MAIN: The primary hoist mechanism provided for lifting and lowering the rated load of the crane. HOIST MOTION: Motion that lifts or lowers a load.

  • Jul 10, 2007 · A main line contactor operated by a switch or pushbutton in the pendant pushbutton station. 1910.179(g)(5)(iv) The hoisting motion of all electric traveling cranes shall be provided with an overtravel limit switch in the hoisting direction. 1910.179(g)(5)(v)

  • A "pulpit-operated crane" is a crane operated from a fixed operator station not attached to the crane. OSHA 1910.179(a)(11) A "remote-operated crane" is a crane controlled by an operator not in a pulpit or in the cab attached to the crane, by any method other than pendant or rope control. OSHA 1910.179(a)(12)

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