๐๏ธ Product Introduction
| Belt Type |
Strength Specifications (N/mm) |
Width Specifications (mm) |
| Fabric Core Lifting Belt |
100, 125, 160, 200, 250, 315, 400, 500, and above |
150, 200, 300, 400, 500, 600, 650, 700, 800, 1000, 1200, 1400, 1600 |
| Steel Wire Rope Core Lifting Belt |
St630, St800, St1000, St1250, St1600, St2000, St2500 |
200, 250, 300, 350, 400, 450, 550, 600, 680, 800, 850, 1000, 1050, 1200, 1300, 1400 |
๐ Marking Example 1 โ Fabric Core
1000 B 9508 4.5T ร 3.0 1000 NN5
Indicates a bucket-type lifting belt with a strength specification of 1000 N/mm, produced in August 1995. Upper cover layer: 4.5 mm; reinforcement + lower cover layer: 3 mm; belt width: 1000 mm; core material: nylon canvas, 5 layers total.
๐ Marking Example 2 โ Steel Wire Rope Core
St1000 B 9508 5T ร 5T 1200 ฮฆ3.5
Indicates a steel wire rope core bucket-type lifting belt, strength specification 1000 N/mm, produced in August 1995. Both upper and lower cover layers: 5 mm; belt width: 1200 mm; steel wire rope diameter: 3.5 mm. Complies with chemical industry standard HG/T 2577-1994 "Rubber Lifting Belt".
๐ Standard Update (2005 Revision): The standard was revised in 2005 and renamed
"Rubber or Plastic". Strength and width specifications were aligned with general-purpose conveyor belts. The covering layer performance is now classified into three types:
- L-type โ General environmental conditions
- T3-type โ Heat resistance up to 150 ยฐC
- T4-type โ Heat resistance up to 175 ยฐC
The revised standard also specifies the punching and drilling of lifting belts.
๐ Product Details
The rubber lifting belt is made up of multiple layers of adhesive fabric, and the core of the belt is generally covered with adhesive. It can be categorized by several criteria:
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By Usage Temperature:
Heat-resistant lifting belts and ordinary lifting belts.
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By Core Material:
Full cotton, polyester-cotton interwoven, nylon, and EP lifting belts.
โ๏ธ
By Performance Characteristics:
Covering adhesive is graded by wear resistance and material load capacity โ D-type (strong wear), L-type (moderate wear), and T-type (heat-resistant).
Main Width Specifications of Lifting Belts:
150 mm
200 mm
250 mm
300 mm
350 mm
400 mm
500 mm
600 mm
โ Frequently Asked Questions
Q
What are the main types of rubber lifting belts based on core material?
Rubber lifting belts are primarily classified by their core material into four types: full cotton, polyester-cotton interwoven, nylon, and EP (polyester-nylon) lifting belts. Each type offers different strength, flexibility, and durability characteristics suited to various industrial applications.
Q
What do the strength specifications (N/mm) of a fabric core lifting belt mean?
The strength specification expressed in N/mm refers to the tensile strength per unit width of the belt. For fabric core lifting belts, available grades include 100, 125, 160, 200, 250, 315, 400, 500 N/mm and above, indicating the maximum load-bearing capacity of the belt per millimeter of width.
Q
How do I read the marking code on a rubber lifting belt?
The marking code includes key information such as belt type (bucket or flat), strength specification, production date (year and month), upper and lower cover layer thicknesses, belt width, core material, and number of layers (or wire rope diameter for steel wire rope core belts). For example, 1000 B 9508 4.5T ร 3.0 1000 NN5 indicates a 1000 N/mm bucket-type belt produced in August 1995 with a 1000 mm width and 5 nylon canvas layers.
Q
What are the three covering layer performance types specified in the revised standard?
According to the 2005 revised standard, the covering layer performance is divided into three types: L-type for general environmental conditions, T3-type for heat resistance up to 150 ยฐC, and T4-type for heat resistance up to 175 ยฐC. This classification helps users select the appropriate belt for their specific operating environment.
Q
What industry standard does the rubber lifting belt comply with?
The rubber lifting belt complies with the chemical industry standard HG/T 2577-1994 "Rubber Lifting Belt". This standard was subsequently revised in 2005 and renamed "Rubber or Plastic Lifting Belt", aligning specifications with general-purpose conveyor belt standards and adding provisions for punching and drilling.
Q
What are the available width specifications for steel wire rope core lifting belts?
Steel wire rope core lifting belts are available in the following width specifications (in mm): 200, 250, 300, 350, 400, 450, 550, 600, 680, 800, 850, 1000, 1050, 1200, 1300, and 1400 mm. The appropriate width is selected based on the application requirements and the volume of material to be conveyed or lifted.
Boao Rubber
