SANY SR155 track roller are made from high quality raw materials and are hardened and tempered, which will increase wear resistance and reduce the frequency of replacement by 30%. Contact us for more details.
| Item | Details |
|---|---|
| Product Name | SANY SR155 Track roller, Lower Roller, Bottom Roller |
| Material | 40Mn2 |
| Colors | Black / Customer Requirement |
| Warranty time | 1 years/2500 working days |
| Certification | ISO9001, SGS |
| MOQ | 1 PCs |
| Delivery Time | 15-25days after payment |
| Payment Term | TT; LC; Negotiate |
| Finish | Smooth |
| Technique | Forging → Heat treatment (quenching and tempering) → Welding |
SANY SR155 Down Roller High Performance, Durable, Reasonable Price
Roller shell heat treated by quenching and tempering + induction hardening to ensure the core hardness HRC28-32 and surface hardnessHRC54-58
Standard QT450-10 for the bracket to ensure wear resistance.
The high nickel and chromium for seals ensure a warranty of 5000 hours with no leakage.
40Cr alloy steel and polished for shaft
Leakage test, fixed quantity oil filling, running test, and dimension checking while assembling.
The Down Roller production process of piling rig track rollers involves several steps, including material selection, machining, heat treatment, assembly, and quality control. Here’s a detailed breakdown of the process:
1. Material Selection
Raw Materials: High-quality alloy steel or carbon steel is typically used due to its strength, durability, and resistance to wear and tear.
Material Testing: The selected materials are tested for mechanical properties such as tensile strength, hardness, and impact resistance to ensure they meet the required specifications.
2. Machining
Cutting: The raw material is cut into the desired size and shape using cutting tools such as saws or plasma cutters.
Turning: The cut pieces are then turned on a lathe to achieve the precise dimensions and smooth surface finish required for the track rollers.
Drilling and Boring: Holes are drilled and bored to accommodate bearings, shafts, and other components.
Milling: Additional machining processes such as milling may be performed to create specific features or contours on the track rollers.
3. Heat Treatment
Hardening: The machined track rollers undergo heat treatment processes such as quenching and tempering to enhance their hardness and durability.
Surface Hardening: Techniques like induction hardening or carburizing may be used to harden the surface of the track rollers while maintaining a tough core.
4. Polishing
Additional polishing may be done to reduce friction and wear during operation.
5. Assembly
Bearing Installation: Bearings are installed into the machined holes to facilitate smooth rotation.
Sealing: Seals are added to protect the bearings from dirt, debris, and moisture, extending the lifespan of the track rollers.
Lubrication: Proper lubrication is applied to ensure smooth operation and reduce wear.
6. Quality Control
Inspection: Each track roller is inspected for dimensional accuracy, surface finish, and overall quality.
Testing: Functional testing is conducted to ensure the track rollers operate smoothly and can withstand the expected loads and stresses.
SANY SR155 Down Roller Packaging
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