What materials are used for the lower roller?

The material is 50mn or 40mn2, processed via forging or casting technology.

Is customization available for this product?

Yes, colors can be customized (black, yellow, or other options), and occasions include construction, earthmoving, and mining.

Durable Lower Roller for Dozer Undercarriage Parts D4c D4e D4d D5 D5h D6c D6h D6d D6e D60 D65 Bottom Lower Track Roller

Name: Durable Lower Roller for Dozer Undercarriage Parts D4c D4e D4d D5 D5h D6c D6h D6d D6e D60 D65 Bottom Lower Track Roller
Brand: Quanzhou Zhongkai Machinery Co., Ltd.
SKU: 1969349111

Fujian, ChinaQuanzhou Zhongkai Machinery Co., Ltd.

US$268.00

1-49 Pieces

US$235.00

50-99 Pieces

US$205.00

100-199 Pieces

US$185.00

200+ Pieces

Sample price:US$298.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Video Support

Warranty

6 Months/12month

Model NO.

D4c D4e D4d D5 D5h D6c D6h D6d D6e D60 D65

Type

Dozer

Application

Excavator

Certification

ISO9001: 2000

Condition

New

Occasion

Contrucction, Earthmoving, Mining

Material

50mn, 40mn2

Technology

Forging/Casting

Hardness Depth

8-12mm

Warranty Time

12 Mouths

MOQ

1 PC

Payment Term

30%T/T in Advance, The Balance Before Shipment

Delivery

25-30 Days

Transportation

by Sea

HRC

55-60

Transport Package

Standard Export Wood Pallet

Specification

Standard

Trademark

Z. K. M

Origin

Quanzhou, China

HS Code

8431490000

Production Capacity

100000 Per Month

Key features

Customizable Colors: Available in black, yellow, or customized colors to meet specific requirements.

High Hardness Surface: Surface hardness HRC 55-60 with a depth of 8-12mm for enhanced durability.

12-Month Warranty: Comprehensive 12-month warranty coverage for peace of mind and reliability.

Fast Delivery: Standard lead time of 25-30 days; 0-7 days if parts are in stock.

ISO9001 Certified: Manufactured under ISO9001:2000 certification ensuring consistent quality standards.

Video Support: Professional after-sales service including video support for technical assistance.

Forging/Casting Tech: Advanced forging and casting technology using 50mn or 40mn2 materials.

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: ≤2.08h

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.

Product Q&A

Q:How can I ensure the part fits my machinery?

Please send us the correct model number, machine serial number, any numbers on the parts themselves, or provide dimensions or drawings.

Q:What are the payment terms?

Generally, 30% deposit T/T in advance, and the balance before the shipment.

Q:What is the lead time for delivery?

FOB Xiamen or any Chinese port: 25-30 days. If there are any parts in stock, our delivery time is only 0-7 days.

Q:What kind of packaging do you offer?

Normally we use the export standard wood pallets. If any special requirements, we can discuss them.

Q:How do you handle quality control?

We have a perfect system for checking the quality of our products. Our team checks the products and the way they are made very carefully at every stage of the production process to ensure safety in the container.