Ola D4h Bulldozer Undercarriage Part Excavator Top Carrier Roller

Name: Ola D4h Bulldozer Undercarriage Part Excavator Top Carrier Roller
Brand: Ningbo Ola Machinery Parts Co., Ltd
SKU: 2093221702

Zhejiang, ChinaNingbo Ola Machinery Parts Co., Ltd

US$60.00

1-9 Pieces

US$36.00

10+ Pieces

Product profile

Customization

Available

After-sales Service

Service at 24 Hours

Warranty

One Year

Model NO.

CR315

Type

Bearing

Application

Excavator

Certification

CE, ISO9001: 2000

Condition

New

Product Name

Excavator Carrier Roller

Keywords

Carrier Roller

Material

50mnb/40mnb

Technics

Follow OEM Strictly

Finish

Smooth

Heat Treatment

Yes

Technique

Forging, Casting, Machining, Heat Treatment

Surface Hardness

HRC52-58,Deepth:8-12mm

Suitable

Excavator Bottom Roller

Color

Black, Grey, Yellow or Customized

After-Sales Service Provided

Video Technical Support

Quality

100% Tested

Package

Standard Export Pallet

OEM & ODM Custom

Sample

Transport Package

Pallet or Customized

Specification

Customized

Trademark

OLA or OEM

Origin

Ningbo, China

Production Capacity

50000 0pieces/Year

Key features

High-Strength Steel Material: Constructed from 50MnB/40MnB steel for exceptional durability and load-bearing capacity.

Precision Heat Treatment: Surface hardness reaches HRC52-58 with a depth of 8-12mm for superior wear resistance.

OEM & ODM Customization: Accepts custom colors (Black, Grey, Yellow) and supports OEM/ODM logo and specification services.

100% Quality Testing: Every part undergoes chemical composition testing and dimensional inspection before delivery.

Anti-Rust Surface Finish: Professionally treated with anti-rust paint to provide additional corrosion resistance.

Wide Compatibility: Suitable for various excavator models including EX, PC, HD, SH, and ZAX series.

Competitive Pricing: Offers better prices and faster delivery for larger order quantities.

Standard Export Packaging: Packaged in standard export pallets to ensure safe transportation and handling.

Company profile

High Repeat Buyers ChoiceR&D CapabilitiesOEM ServicesImporters and Exporters

Ningbo Ola Machinery Parts Co., Ltd

Zhejiang, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: OEM Service AvailableNearest Port: NingBoAverage Response Time: ≤2.74h

AI-Powered supplier vetting

SummaryThe supplier operates in mechanical and electrical equipment, molds, plastic products, appliances, and related sales. It reports ISO 9001 and SGS certification, OEM service for known brands, customization from samples and designs, and exports to multiple regions. However, service-management controls are weak or undocumented: there are no written complaint-handling or corrective-action procedures and no approved-supplier list. Innovation and technical development appear limited, with no ODM, SDK, 3D design service, or new product reported in the past year, and only one R&D engineer. Quality-control assurance and traceability are unconfirmed, while testing equipment is reported as zero. Overseas service infrastructure is absent, including warehouses, showrooms, agents, branches, and offline trade-show participation. Financial information is present for multiple reporting years, but the supplied slices do not provide enough evidence to assess financial credibility.

Supplier typeThe supplier is a broad mechanical and electrical products supplier with sales of equipment, molds, plastic products, appliances, and related goods. It is not identified as a professional technical supplier and offers OEM service for known brands, but not ODM or SDK-based services.

CertificationsThe company description explicitly states that it holds ISO 9001 and SGS certificates. This is direct evidence of certification holding, although the slices do not specify certificate scope, validity, or issue dates.

After-Sales capabilityAfter-sales and service-management capability is weakly documented: there are no written complaint-handling procedures or records, no written corrective and preventive-action mechanism, and no overseas warehouse, showroom, agent, or branch. Lead time is stated as one month in both peak and off-season, but this does not establish effective after-sales support.

R&D capabilityInnovation capability appears limited: the supplier provides no ODM, SDK, or 3D software design service, reported no new products in the past year, and has one R&D engineer. The engineer handles R&D, product improvement, and production-site support, but this does not demonstrate strong innovation output.

Production capacityThe supplier accepts samples and small lots, supports customization, exports to over 30 countries according to its company description, and reports one-month lead times in both seasons. However, quality-assurance and traceability status are unknown and the number of quality-control test equipment is reported as zero, creating a stated production-quality weakness.

Customization capabilityThe supplier explicitly supports customization from samples and designs and states that products can be made according to customer requests. It also accepts samples and small lots and offers OEM service for known brands, although it does not provide ODM or 3D software design services.

Client casesThe supplier states that it has sent parts to more than 30 countries across North America, South America, the Middle East, and Africa, with positive customer feedback, and reports that some customers referred others. Export sales are also stated at 71%–90% of total sales, supporting international customer experience.

Product Q&A

Q:How do you ensure the parts you send are high quality?

Once we receive the raw material we will do the chemical composition testing and in production, our QC will do the random inspection of every lot of the dimensions, appearance, mechanical properties hardness, impact value, etc. To make sure every part is qualified.

Q:What is the payment term?

Usually 50% deposit and the balance before the shipment or against the BL copy. TT, lc is welcome.

Q:If we want to do our logo, is that acceptable?

Yes, OEM & ODM are welcome.

Q:What's the lead time?

For the normal order, it usually takes 15-30 days after receiving the deposit as agreed.

Q:What kind of package do you offer?

Normally we use the export standard pallets, if you have any special requirements, we can discuss them.