How do you ensure product quality?

We have excellent testers to check every piece to ensure quality is good and strict control to ensure product safety into the container.

What quality types do you offer?

We offer Economic type (6 months guarantee), Standard type (12 months guarantee), and Heavy Duty type (12 months guarantee).

D6r Durable Parts Heavy-Duty Track Roller Dozers Bottom Roller Lower Roller

Name: D6r Durable Parts Heavy-Duty Track Roller Dozers Bottom Roller Lower Roller
Brand: Quanzhou Zhongkai Machinery Co., Ltd.
SKU: 2192020855

Fujian, ChinaQuanzhou Zhongkai Machinery Co., Ltd.

US$80.00

1-999 Pieces

US$60.00

1,000-4,999 Pieces

US$58.00

5,000+ Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Online Support

Warranty

6 Months/12 Months

Model NO.

D6R

Type

Crawler

Application

Excavator

Certification

CE, ISO9001: 2000

Condition

New

Material

50mn/40mn2

Surface Hardness

HRC52-58

Color

Black/ Yellow/Customized

Applications

Construction/Heavy Duty

Hardness Depth

8-12mm

Shaft Material

45#

Shaft Hardness

HRC55-62

Transport Package

Standard Export Fumigated Wooden Pallet

Specification

52kgs

Trademark

Z. K. M/UCMAN/Customized

Origin

Quanzhou

HS Code

843149

Production Capacity

500000

Key features

Customizable Color: Available in Yellow, Black, or Customized colors to meet specific needs.

High Hardness Material: Made of 50Mn/40Mn2 with surface hardness HRC52-58 and depth 8-12mm.

Strict Quality Control: Every piece is tested to ensure quality and safety before container loading.

Flexible Delivery: 0-7 days for stock items; 25-30 days for custom orders after payment.

Multiple Quality Options: Offers Economic, Standard, and Heavy Duty types for different applications.

Professional Support: Factory and trade integration with online support and technical assistance.

Secure Packaging: Standard export packing ensures parts arrive safely and securely.

Company profile

R&D CapabilitiesIn-stock CapacityFast DeliveryHigh Repeat Buyers Choice

Quanzhou Zhongkai Machinery Co., Ltd.

Fujian, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤0.61h

AI-Powered supplier vetting

SummaryQuanzhou Zhongkai Machinery Co., Ltd. is identified as both a trading company and manufacturer/factory in Fujian, China. It reports broad customization and ODM capabilities, recent new-product activity, OEM service for well-known brands, and production capacity for track rollers, track links, idlers, sprockets, and top rollers. Export sales represent 51%–70%, with markets spanning multiple regions. However, quality assurance and traceability status are unknown, quality-control test equipment is reported as zero, and only one R&D engineer is listed. The supplier has no overseas warehouses, showrooms, agents, or branches, but has attended Bauma China. Financial credibility, certifications, and specific customer cases cannot be adequately verified from the provided information.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory, operating as a limited company in Fujian, China. This indicates a combined manufacturing and trading business structure.

After-Sales capabilityThe supplier reports that its technology engineer provides technical support for after-sales service and that it has a clear customer-complaint procedure with follow-up records. However, it has no overseas warehouse, showroom, agent, or branch, which limits documented local service infrastructure.

R&D capabilityThe supplier reports new products within the past year, ODM service, and an R&D engineer responsible for new product development and technical support. Evidence is limited by the listing of only one R&D engineer and no available SDK; quality-control test equipment is also reported as zero.

Production capacityReported annual output includes 150,000 track rollers, 8,000 track links, 8,000 idlers, 5,000 sprockets, and 5,000 top rollers. The supplier also serves broad export markets and reports 51%–70% of sales from exports, supporting evidence of established production and international supply capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, together with ODM services. These statements provide direct evidence of broad customization coverage.