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China Rubber Lifting Conveyor Belt Factory - Reliable Suppliers for Bucket Elevators and Material Transport Solutions
Product Introduction
🧵 Fabric Core Lifting Belt — Strength (N/mm)
100, 125, 160, 200, 250, 315, 400, 500, and above
📏 Fabric Core Lifting Belt — Width (mm)
150, 200, 300, 400, 500, 600, 650, 700, 800, 1000, 1200, 1400, 1600
🔩 Steel Wire Rope Core — Strength (N/mm)
St630, St800, St1000, St1250, St1600, St2000, St2500
📏 Steel Wire Rope Core — Width (mm)
200, 250, 300, 350, 400, 450, 550, 600, 680, 800, 850, 1000, 1050, 1200, 1300, 1400
🏷️ Marking Example 1 — Fabric Core Lifting Belt
1000 B 9508 4.5T × 3.0 1000 NN5
Indicates a bucket-type lifting belt with strength specification of 1000 N/mm, produced in August 1995. Upper cover layer: 4.5mm; lower cover layer: 3mm; belt width: 1000mm; core material: nylon canvas, 5 layers.
Indicates a bucket-type lifting belt with strength specification of 1000 N/mm, produced in August 1995. Upper cover layer: 4.5mm; lower cover layer: 3mm; belt width: 1000mm; core material: nylon canvas, 5 layers.
🏷️ Marking Example 2 — Steel Wire Rope Core Lifting Belt
St1000 B 9508 5T × 5T 1200 φ3.5
Indicates a steel wire rope core bucket-type lifting belt with strength specification of 1000 N/mm, produced in August 1995. Both upper and lower cover layers: 5mm; belt width: 1200mm; steel wire rope diameter: 3.5mm. Complies with chemical industry standard HG/T 2577-1994 "Rubber Lifting Belt".
Indicates a steel wire rope core bucket-type lifting belt with strength specification of 1000 N/mm, produced in August 1995. Both upper and lower cover layers: 5mm; belt width: 1200mm; steel wire rope diameter: 3.5mm. Complies with chemical industry standard HG/T 2577-1994 "Rubber Lifting Belt".
This standard was revised in 2005 and is currently awaiting approval. The revised standard has been renamed as "Rubber or Plastic", and the strength and width specifications for both fabric core and steel wire rope core lifting belts are now consistent with those of general-purpose conveyor belts. The covering layer performance is categorized into three types:
L-Type: General Environmental Conditions
T3-Type: Heat Resistance ≤ 150°C
T4-Type: Heat Resistance 175°C
The revised standard also specifies the punching and drilling requirements of lifting belts.
More About Rubber Lifting Belts
The rubber lifting belt is made up of multiple layers of adhesive fabric, and the core of the belt is generally covered with adhesive. Lifting belts are classified by several criteria:
🌡️ By Usage Temperature
Heat-resistant lifting belts & Ordinary lifting belts
🧵 By Core Material
Full cotton, Polyester-cotton interwoven, Nylon, and EP lifting belts
⚙️ By Wear Resistance Grade
D-Type: Strong wear resistance
L-Type: Moderate wear resistance
T-Type: Heat-resistant type
L-Type: Moderate wear resistance
T-Type: Heat-resistant type
📏 Main Width Specifications (mm)
150, 200, 250, 300, 350, 400, 500, 600, and more
Frequently Asked Questions
Q
What are the main strength specifications for fabric core lifting belts?
The strength specifications (N/mm) for fabric core lifting belts include: 100, 125, 160, 200, 250, 315, 400, 500, and above. These cover a wide range of industrial applications from light-duty to heavy-duty lifting operations.
Q
What is the difference between fabric core and steel wire rope core lifting belts?
Fabric core lifting belts are composed of layers of adhesive fabric (such as nylon or polyester-cotton) and are suitable for general lifting tasks. Steel wire rope core lifting belts feature embedded steel wire ropes for higher tensile strength, making them ideal for heavy-duty and high-load applications. Their strength grades range from St630 up to St2500.
Q
What do the markings on a rubber lifting belt indicate?
The marking on a rubber lifting belt encodes key product information, including the strength specification (N/mm), production date, upper and lower cover layer thicknesses, belt width, core material type, and number of layers. For example, "1000 B 9508 4.5T × 3.0 1000 NN5" indicates a 1000 N/mm nylon core belt, 1000mm wide, with 5 layers, produced in August 1995.
Q
What are the heat resistance classifications for rubber lifting belts?
According to the revised standard, the covering layer performance is categorized into three types: L-Type for general environmental conditions, T3-Type for heat resistance not exceeding 150°C, and T4-Type for heat resistance up to 175°C. This allows users to select the appropriate belt based on their operating temperature requirements.
Q
What industry standard does the rubber lifting belt comply with?
Rubber lifting belts comply with the chemical industry standard HG/T 2577-1994 "Rubber Lifting Belt". The standard was revised in 2005 and renamed to cover "Rubber or Plastic" lifting belts. The revised version also specifies requirements for punching and drilling of lifting belts.
Q
How are rubber lifting belts classified by wear resistance?
Rubber lifting belts are classified into three grades based on wear resistance: D-Type (Strong Wear) for highly abrasive materials, L-Type (Moderate Wear) for general-purpose use under moderate load conditions, and T-Type (Heat-Resistant) for environments with elevated temperatures. Selecting the correct grade ensures optimal belt life and performance.