The support roller casting is a large-sized rotary support component blank produced through casting processes, made from high-quality cast steel (such as ZG35Ⅱ, ZG45, etc.) as raw materials, and manufactured through melting, casting, solidification, heat treatment, and other procedures. The product has a wheel-shaped structure with a central through-hole and mounting positioning holes (such as the four-hole design shown in the picture). The surface is in a casting blank state and requires precision machining such as turning and milling according to customer requirements. Its structural design ensures high load-bearing capacity and operational stability, widely used in heavy machinery fields.
Product Applications
1. Cement and Metallurgical Industries: Support rollers for rotary kilns and ball mills, bearing equipment weight and ensuring smooth rotation.
2. Conveying Equipment: Roller sets for belt conveyors and roller conveyor lines, reducing friction resistance and achieving efficient material transport.
3. Construction Machinery: Support rollers for excavator and crane rotary platforms, ensuring equipment operational accuracy.
4. Mining Machinery: Rotary support components for crushers and screening equipment, suitable for heavy-duty conditions.
Product Features
1. High Load-Bearing and Wear Resistance: Cast steel material heat-treated (normalizing/quenching and tempering), tensile strength ≥550MPa, hardness HB200-280, wear-resistant and durable.
2. Reliable Structure: Integrated casting of the rim and spokes, no welding stress, preventing cracking during use.
3. Customized Design: Outer diameter, inner diameter, width, and mounting hole positions can be adjusted according to customer drawings to fit different equipment.
4. Vibration and Noise Reduction: Casting process results in dense internal structure, producing low vibration and noise during operation.
5. Easy Installation: Central hole and positioning holes (such as the four-hole design in the picture) facilitate connection with equipment shafts and frames.
Product Functions
1. Support Function: Bearing vertical and horizontal loads of rotary equipment, distributing pressure.
2. Guiding Function: Cooperates with the wheel band to maintain the stability of the rotary equipment axis and prevent deviation.
3. Friction Reduction Function: Through rolling or sliding contact, reduces operational resistance of equipment and saves energy.
4. Power Transmission: In drive rollers, transmits motor torque to the rotary body to achieve operation.
Product Technical Parameters
Parameter Category | Parameter Range/Typical Values |
Material | ZG35Ⅱ, ZG45, ZG42GrMo wear-resistant cast steel, etc. |
Chemical Composition (%) | C: 0.35-0.45, Mn: 0.6-0.9, Si: 0.3-0.6 (example based on ZG35Ⅱ) |
Outer Diameter (D) | φ800mm - φ3000mm (approximately φ2200mm in the picture) |
Inner Diameter (d) | φ400mm - φ1200mm (approximately φ800mm in the picture) |
Width (B) | 300mm - 1200mm (approximately 600mm in the picture) |
Single Piece Weight | 500kg-8000kg |
Mechanical Properties | Tensile strength ≥550MPa, yield strength ≥310MPa, elongation ≥18% |
Hardness | HB200-280 (after heat treatment) |
Heat Treatment Process | Normalizing/Quenching and tempering (tempering at 650-700℃) |
Accuracy Grade | Casting blank CT8-CT10 grade (GB/T 6414), machined IT7-IT8 grade |
Precautions
1. The above parameters are common ranges; specific values are subject to the customized technical agreement.
2. Surface Roughness: Casting blank Ra=50-125μm, after machining Ra=3.2-12.5μm.
3. Inspection reports (such as UT ultrasonic testing, MT magnetic particle testing) and material certificates can be provided.
(Note: Technical parameters are estimated based on industry common standards and the roller size shown in the picture. Actual product parameters should be determined according to customer equipment conditions and design drawings.)
Keywords
Trolley Casting
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