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OEM Replacement 207-30-00550 Top Roller with Heat Treatment HRC 52-58 for Heavy-Duty Construction Excavator Undercarriage
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Liên hệ với chúng tôi
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OEM Replacement 207-30-00550 Top Roller with Heat Treatment HRC 52-58 for Heavy-Duty Construction Excavator Undercarriage
| MOQ: | 1 CÁI |
| Giá: | US$19-34 |
| Bao bì tiêu chuẩn: | Bao bì xuất khẩu tiêu chuẩn |
| Thời gian giao hàng: | 7-15 ngày |
| Phương thức thanh toán: | T/T, L/C |
| năng lực cung cấp: | 10000 chiếc / tháng |
Thông tin chi tiết
Nguồn gốc
Trung Quốc
Hàng hiệu
ZTMC
Chứng nhận
ISO9001
Số mô hình
PC300-7LC/PC300-7K
Mã HS:
8431499900
Chất lượng:
Xử lý nhiệt HRC 52-58
Cân nặng:
Khoảng 15-30 kg
Đặc điểm kỹ thuật:
Theo yêu cầu của khách hàng
Chức năng:
Hỗ trợ chuỗi đường ray và duy trì độ căng của đường ray
kiểu:
Các bộ phận của khung xe
Phương pháp sản xuất:
Đúc; Xử lý nhiệt
đóng gói:
Pallet gỗ
Thời gian bảo hành:
12-18 tháng
Tính năng:
Bền bỉ
Vận chuyển:
Bằng đường hàng không/Express/Đường biển
Đặc biệt:
Mới 100%
Bảo hành:
Thông thường 6-12 tháng
Từ khóa:
Các bộ phận của khung xe
Chứng nhận:
ISO9001
Mô tả sản phẩm
PC300-7LC PC300-7K Top Roller OEM Replacement 207-30-00550
This heavy-duty carrier top roller is a 1:1 OEM direct replacement for PC300-7LC long crawler and PC300-7K heavy-duty excavators, with standard OEM part number 207-30-00550. Perfectly matching original mounting dimensions and bolt holes, it requires no cutting, drilling or any on-site modification. It effectively supports track operation, avoids track sagging and walking vibration, and optimizes overall undercarriage running performance for long-hour heavy-load engineering fleets.
Specification
| OEM Part Number | 207-30-00550 |
|---|---|
| Applicable Excavator Model | PC300-7LC / PC300-7K |
| Machining Tolerance | ±0.01mm CNC ultra-precision machining |
| Heat Treatment Process | Overall quenching + stress relief tempering |
| Applicable Working Scenarios | Large quarry mining, high-grade road construction, heavy earthmoving, muddy wet sites, high-impact harsh working conditions |
| Installation Type | Plug-and-play OEM direct replacement |
Applicable Working Environments
PC300-7LC long track and PC300-7K reinforced heavy-duty excavators adopt upgraded lengthened crawler and strengthened chassis, bearing higher track load than standard PC300-7 machines. They are widely applied in large quarry projects, infrastructure construction and continuous heavy earthmoving work. Long-term gravel extrusion, muddy water soaking and frequent walking impact bring extreme load to undercarriage top rollers. This specially reinforced top roller is customized for high-load long-track chassis, keeping stable running performance all day long.
Core Production & Heat Treatment Process
Adopt extra thickened one-piece forging steel blank to adapt to super high load of long-track and reinforced chassis. Dual standard heat treatment is adopted: integral quenching improves surface hardness to resist long-term gravel abrasion; secondary tempering eliminates internal metal stress to prevent shell deformation under strong impact. All mounting holes and matching contact surfaces are processed by precision CNC machine tools, with tolerance strictly controlled within 0.01mm, fully matching original factory OEM assembly standards.
On-site Installation Steps
- Raise the excavator track with a hydraulic jack to separate track from ground and release partial track tension
- Remove fixing bolts of the old top roller, take out original roller and clean sediment and dust on the mounting base
- Place the new top roller in original installation position, align reserved bolt holes accurately
- Lock all bolts with standard factory torque, reset track tension and conduct track idle running test
- Check no abnormal vibration or friction noise to finish whole installation work
Product Advantages
- Universal fit for PC300-7LC long track and PC300-7K reinforced heavy-duty models
- Thickened roller shell structure bears higher chassis load without deformation
- High-precision overall machining eliminates track offset and walking vibration
- Heavy-duty floating seal isolates external mud and dust steadily
- Complete dual heat treatment greatly extends service life under heavy working conditions
- Direct bolt-on installation saves field maintenance time and labor cost
Customer Application Case
A professional large quarry fleet owns dozens of PC300-7LC and PC300-7K excavators working with full-load operation every day. After matching with our OEM-standard top rollers, all undercarriage accessories keep stable operation over 1800 working hours with intact shell and stable sealing performance, cutting annual undercarriage overall maintenance cost by 34%.
FAQ
Q1: Can this top roller fit PC300-7LC and PC300-7K universally?
A: Yes, OEM part number 207-30-00550 is exclusive for these two upgraded heavy-duty models, 100% consistent installation size, no modification required.
Q2: What is the difference between this roller and ordinary PC300-7 top roller?
A: This roller adopts thickened shell and reinforced internal structure, specially upgraded for higher load of long track and K-version reinforced chassis, with better impact resistance and durability.
Q3: Can you provide official inspection reports for bulk orders?
A: Yes, we can provide hardness test reports and dimensional inspection reports to support customer bulk order quality inspection and customs clearance.
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