What surface treatments are available?

Options include polishing, bead blasting, zinc plating, hot dip galvanized, nickel plating, passivation, electro-polishing, mirror polishing, brush polishing, PE coating, and powder coating.

What is the casting tolerance and roughness?

Standard casting tolerance is CT6, with customizable CT5-CT6. Roughness is Ra3.2-6.4 for casting and Ra0.8-1.6 for machining.

Where is your factory located?

We are located in Dongying, Shandong, China, just 3 hours by car from Qingdao and Tianjin Sea ports.

OEM Investment Casting Foundry Lost Wax Casting for Marine

Name: OEM Investment Casting Foundry Lost Wax Casting for Marine
Brand: Dongying Highco Metal Manufacturing Co., Ltd.
SKU: 2240681625

Shandong, ChinaDongying Highco Metal Manufacturing Co., Ltd.

US$5.00-15.00

100 Pieces

Product profile

Customization

Available

Casting Method

Thermal Gravity Casting

Process

Investment Casting

Model NO.

LWC000-014

Molding Technics

Gravity Casting

Application

Machinery Parts

Material

Cast Steel

Surface Preparation

Polishing

Surface Roughness

Ra0.8

Machining Tolerance

+/-0.02mm

Standard

AISI

Casting Tolerance

CT5-CT6

Casting Roughness

Ra3.2-6.3

Special Treatment

Sand Blasting, Polishing, Elctro Polishing

Lead Time

45-60days

Transport Package

Carton and Pallet

Specification

Trademark

customized

Origin

Shandong Province, China

Production Capacity

2000sets Per Month

Key features

Custom Tolerance & Roughness: Casting tolerance CT5-CT6 and roughness Ra3.2-6.3 available for customization.

Wide Material Selection: Supports Stainless Steel (304/316), Carbon Steel, Duplex, and Alloy Steel.

Precision Machining: Tight machining tolerance of +/-0.02mm with Ra0.8 surface roughness.

Comprehensive Surface Treatment: Options include polishing, sand blasting, electro-polishing, and various coatings.

High Production Capacity: Monthly production capacity exceeds 100 tons for large-scale orders.

ISO Certified Quality: ISO9001 and ISO14001 certified with 100% final inspection before shipment.

Expert Technical Support: Team with over 15 years experience in mold design, casting, and machining.

Flexible OEM/ODM Service: Full customization from samples with professional R&D and engineering support.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Dongying Highco Metal Manufacturing Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 6 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.09h

AI-Powered supplier vetting

SummaryDongying Highco Metal Manufacturing Co., Ltd. is identified as a limited, combined-type supplier and is described elsewhere as a trading company engaged in precision mechanical equipment processing and sales, precision castings, ship accessories, and automotive accessories. It offers steel castings and has OEM experience with well-known brands, export capability, in-stock service, and a stated 90% export-sales share. Its facilities include CNC lathes, drilling, polishing, pressing, and related equipment, with sample-based customization. Quality and complaint-handling procedures are documented and followed, although the approved-supplier list lacks signatures or dates. Key limitations are the absence of an available SDK, valid manufacturing-capacity contracts with associated subcontractors, overseas warehouses, overseas agents or branches, overseas showrooms, and offline trade-show participation. Financial information is limited to year labels without assessable financial values. An audit by TÜV Rheinland...

Supplier typeThe supplier is listed as a limited company with a combined organizational type, while its company nature is identified as a trading company. Its stated business scope covers processing and sales of precision mechanical equipment and accessories, precision castings, ship accessories, and automotive accessories; the primary offered product is steel casting.

CertificationsThe supplier is explicitly stated to hold a valid import and export license. A TÜV Rheinland audit is also recorded with coverage from April 24, 2025 to April 23, 2026, but the audit type is given only as “1” and the evaluation result as “0,” without an interpretable certification or pass description.

After-Sales capabilityThe supplier lists overseas service offerings including debugging, maintenance, repair, training, and equipment installation, and has documented, followed procedures for corrective actions and customer complaints. However, it has no overseas agents or branches, serves zero stated countries, and has no overseas warehouse or showroom, limiting demonstrated international service infrastructure.

Production capacityThe supplier reports in-stock capacity, a facility containing CNC lathes, lathes, drilling, polishing, pressing, and digital-caliper equipment, and 90% of sales from exports with self-operated import/export rights. It also reports written and followed inspection, supplier-capability assessment, corrective-action, and complaint procedures, although there is no valid manufacturing-capacity contract with the factory and associated subcontractors and the supplier reports zero cooperative suppliers.

Customization capabilityThe supplier explicitly provides customization from samples and has OEM capability for well-known brands, directly supporting its ability to produce customized products based on customer samples or brand requirements. No broader design-development or SDK capability is established.