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Crane parts scrapped standards: When to replace your crane parts?

21 Mar, 2017

Crane parts scrapped standards. When to replace your crane parts to ensure crane safety and improve working efficiency? What are crapped standards for crane parts, such as crane brake, wire rope, crane wheel, crane pulley, and crane hook? Check crane parts scrapped standards now.SzcHenan Dongqi Machinery Co., Ltd

Crane Brake Scrapped Standard

Crane parts: crane brake SzcHenan Dongqi Machinery Co., Ltd

 SzcHenan Dongqi Machinery Co., Ltd

  • Crane Brake surface with crack or break;
  • Traveling mechanism crane brake band with thickness wear of 1/2, lifting mechanism brake band with thickness wear of 1/3;
  • Burning or charring of the crane brake band surface;
  • Plastic deformation occurs with the spring;
  • Small shaft or the shaft hole diameter wear amount of 5% more than the original diameter.

When you crane brakes have these problem, it is time to replace it. Dongqi Hoist and Crane is able to provide crane brakes for various types of cranes. If you have any need, please feel free to contact us. WhatsApp is 0086 151 3871 1597.SzcHenan Dongqi Machinery Co., Ltd

Wire Rope Scrapped Standard

Crane parts: crane  wire ropeSzcHenan Dongqi Machinery Co., Ltd

 SzcHenan Dongqi Machinery Co., Ltd

  • Each twist of wire rope, broken wires number up to 12 (6 * 19) or 22 (6 * 37);
  • Wire rope radial rust or wear up to 40% of the original diameter;
  • Lifting liquid metal wire rope, numbers of scrapped broken wires up to 6 (6 * 19) or 11 (6 * 37);
  • The wire rope diameter wear volume reaches 7% of nominal diameter;
  • Wire rope strand broken, wire rope cord damaged, wire rope flattening bending knot and electric shocks, etc.

When you crane wire ropes have these problem, it is time to replace it. Dongqi Hoist and Crane is able to provide crane wire ropes for various cranes, i.e, overhead crane, gantry crane, jib crane. If you have any need, please feel free to contact us. WhatsApp is 0086 151 3871 1597.SzcHenan Dongqi Machinery Co., Ltd

 SzcHenan Dongqi Machinery Co., Ltd

Crane Wheels Scrapped Standard

Crane parts: crane wheelsSzcHenan Dongqi Machinery Co., Ltd

 SzcHenan Dongqi Machinery Co., Ltd

  • Your crane wheels should be scrapped and replaced, if the following defects appears:
  • Crane wheel surface with crack or break;
  • Crane wheel flange thickness wear amount up to 50% of the original thickness;
  • Tread thickness wear amount up to 15% of the original thickness;
  • When the traveling speed is less than 50m / min, linear contour degree reaches 1mm; or when the traveling speed is more than 50m / min, linear contour degree reaches 0.5mm;
  • Read pitting appeared, when crane wheel diameter is less than 500mm, pitting diameter greater than 1mm; or wheel diameter greater than 500mm, pitting diameter greater than 1.5mm, and the depth is greater than 3mm, the numbers of pitting more than five.

When you crane wheels have these problem, it is time to replace it. Dongqi Hoist and Crane is able to provide crane wheels for various cranes. If you have any need, please feel free to contact us. WhatsApp is 0086 151 3871 1597.SzcHenan Dongqi Machinery Co., Ltd

Pulley Scrapped Standard

Crane parts: crane pulleySzcHenan Dongqi Machinery Co., Ltd

 SzcHenan Dongqi Machinery Co., Ltd

  • The crane pulley should be scrapped and replaced, when it has
  • Wall thickness wear amount of the pulley rope groove reaches 20% of the original thickness;
  • Radial wear amount of the pulley rope groove bottom is more than 50% of the rope diameter or uneven wear more than 3mm;
  • Cast iron pulleys with serious crack and break;
  • Pulley rim with serious damage;
  • There are other defects of the pulley damage to wire rope.

When you crane pulley have these problem, it is time to replace it. Dongqi Hoist and Crane is able to provide crane pulley for various cranes. If you have any need, please feel free to contact us. WhatsApp is 0086 151 3871 1597.SzcHenan Dongqi Machinery Co., Ltd

Crane Hook Scrapped Standard

Crane parts: crane  hooksSzcHenan Dongqi Machinery Co., Ltd

  • The crane hook should be scrapped and replaced, when
  • Crane Hook surface with crack or break;
  • Dangerous section erosion rate more than 10% of the original size;
  • Dangerous section and hook neck part with plastic deformation;
  • Casting gap increase of 15% compared to the original size;
  • Tip of crane hook torsional deformation of more than 10%;
  • Board crane hook bushing wearing capacity reaches 30% of the thickness dimension, the bushing should be scrapped.
  • Board crane hook spindle wearing capacity reaches 5% of the original size, mandrel should be scrapped.

When you crane hooks have these problem, it is time to replace it. Dongqi Hoist and Crane is able to provide crane hooks for various cranes. If you have any need, please feel free to contact us. WhatsApp is 0086 151 3871 1597.SzcHenan Dongqi Machinery Co., Ltd

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