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Crane Parts Pulley Blocks For Wire Rope

  • Crane Parts Pulley Blocks For Wire Rope
  • Crane Parts Pulley Blocks For Wire Rope
  • Crane Parts Pulley Blocks For Wire Rope
  • Crane Parts Pulley Blocks For Wire Rope

Crane Parts Pulley Blocks For Wire Rope

    Payment Type: L/C,T/T,Western Union
    Terms of Trade: FOB,CFR,CIF
    Min. Order: 10 Piece/Pieces
    Delivery Time: 20 Days
    Packaging: As your requirement
    Productivity: 5000 pcs/month
    Brand: Mide
    Transportation: Ocean
    Place of Origin: Henan
    Supply Ability: 5000 pcs/month
    Certificate: CE ISO
    Port: Qingdao,Shanghai,Ningbo

Basic Info

Model No.: MDL

Product Description


- Pulley plays a role of saving labor,supporting wire rope and being a guide for wire rope.

Materials constitution

- For light and medium-size bridge crane, pulley can be made with gray cast iron HT15-33 and nodular QT-10.

- For heavy bridge crane, pulley is produced with cast steel ZG25 or ZG35.

- Major diameter pulley(D>800mm)can be weld with carbon steel Q235A.

Diameter of pulley has a direct impact on service life of wire rope.

- Wire rope will bent once every time it is through the Crane pulley.

- Repeated bent is one of the most important reasons causing rope damage.

- The smaller diameter of pulley is, the more seriously wire rope bends and the more quickly wire rope damages.

- It requires the diameter of pulley and wire rope keep a reasonable proportion to make wire rope a long service life.

- In order to make wire rope through pulley smoothly, radius of pulley groove bottom should be slightly bigger than radius of wire rope,that is to say, r=(0.53~0.6)d. When diameter of wire rope is bigger.

Safety Inspection of Pulley

- Crane Pulley Block can rotate agilely with hand-handling in normal working condition, and lateral swinging no more than D0/1000(D0 is the nominal diameter of pulley block).

- Cuttings and dust in the oil-way and oilhole on the shaft must be cleaned. Inspect whether oilhole and oil sink on the spacer bush between the bearings is aligned or not.

- When there are flaws on the pulley block, the pulley should be discarded as useless and stopped to use.

- Radial direction of pulley rope groove abrades no more than 30% of rope diameter;

- Pulley groove wall abrades no more than 30% of original wall thickness.

- Defect area in the axle hole is less than 0.25cm square, depth no more than 4mm.

Pulley Block

Technical details:
Type: Forged & Casting & Rolling Pulley Wheels
Application: Crane, trolley, truck crane, Hoist, heavy duty industry, Port crane, Steel factory etc
Material: Casted iron: HT200 Ball mill cast iron
Casted Steel: ZG20; ZG25; ZG35; ZG45
Steel Plate: Rolling Q235B; Q345B; 1045/C45/45#
Forged Steel: 16Mn; 20#; 45#/1045/C45; 42CrMo/42CrMo4/CM440; 65Mn; SSW-Q1 etc
Nylon(Polyamides): MC Nylon
φ200 φ250, φ350, φ400, φ500, φ600, φ700, φ800, φ1000, φ1200, φ1600 or as your require
Rated Loading Capacity: 1~160 ton
Diameter of wire rope: φ7--φ82mm
Process: Forging & Casting and Steel Plate Cutting
Brand of Bearing: Import Bearing SKF, NSK, FAG, NTN or as your require
Domestic well-known brand LYC, HRB, ZWZ or as your require
Quality Control: UT, MT, RT, PT, chemical composition test, mechanical property test, etc.
Heat Treatment: Quenching and Tempering
Quenching Depth: no less than 20mm
Coating: Black Oxide+ Rust-proof oil+ High quality plywood crate
Inspection: Besides our in-house inspection, you could also choose a third party inspection.
Standard: ASTM, ASME, DIN, JIS, ISO, BS, API, EN, GOST, etc
Certificate: 1, Raw material certificate(material chemical composition)
2, Heat treatment sheet report
3, Dimension inspection report
4, UT/MT/Tensile test report
Packing: Seaworthy plywood packaged on steel pallets or as customer's request
Delivery Date: 20~30 working days
Competitive Advantage: Quality control and management to the whole produce process, including ingot smelting, Forging, heat treatment, machining and strictly final inspection prior to delivery.

Product Show

crane pulley block description

About Us

JiangXiMide Industry Co., Ltd is engaged in export trade for all over the world, It is subsidiary of Henan Kuangshan Crane Co., Ltd, which is a joint-stock industrial enterprise, focused on the production and sale of crane and accessories. It's member unit of China Quality Inspection Association and also the vice-chairman unit of China Heavy Machinery Industry Association.

We manufacture below crane and accessories:

Single and double beam bridge crane

Gate-type crane

grab, casting, explosion-proof and new single and double girder crane

electric hoist (European)

Jiangxi Mide Industrial Co., Ltd.

 Our company is located in the beautiful hero city-Nanchang. With its own supporting process of machining, milling, planing, grinding etc. We own R&D design team, having complete quality assurance system and strict management system. Our mission is to think what the customer thinking, do what the customer urgently want. Quality makes the brand and integrity weaves the future.

Company Info

  • Company Name: Jiangxi Mide Industrial Co., Ltd.
  • Representative: Shizeng Wang
  • Product/Service: Gantry Crane , Overhead Crane , KBK Crane , Jib Crane , Electric Hoist , Lift Platform
  • Capital (Million US $): 5000000RMB
  • Year Established: 2017
  • Total Annual Sales Volume (Million US $): Below US$1 Million
  • Export Percentage: 11% - 20%
  • No. of Production Lines: 5
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): Below 1,000 square meters
  • Factory Location: xinxiang city, henan province
  • Contact Person: Mr. Shizeng Wang
  • Tel: 86-791-88211855
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