What surface treatments are offered?

We provide polishing, sand blasting, electro-polishing, zinc plating, hot dip galvanized, nickel plating, passivation, and powder coating.

What are the accepted payment terms?

We accept T/T, L/C, D/P, PayPal, Western Union, and small-amount payments in USD, EURO, or RMB.

Can you provide OEM and ODM services?

Yes, we offer full OEM and ODM services, including customization from samples and special machining requirements.

High Quality Diaphragm Storage Stainless Steel Hopper for Diaphragm Plunger Machine

Name: High Quality Diaphragm Storage Stainless Steel Hopper for Diaphragm Plunger Machine
Brand: Dongying Highco Metal Manufacturing Co., Ltd.
SKU: 2234525785

Shandong, ChinaDongying Highco Metal Manufacturing Co., Ltd.

US$0.80-40.00

100 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Casting Method

Thermal Gravity Casting

Process

Investment Casting

Model NO.

MG17-006

Molding Technics

Gravity Casting

Application

Machinery Parts

Material

Cast Steel

Surface Preparation

Polishing

Surface Roughness

Ra0.8

Machining Tolerance

+/-0.02mm

Standard

AISI

Certification

ISO 9001:2015

Casting Tolerance

CT5-CT6

General Machining Tolerance

ISO2768-Mk

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

Precision Investment Casting: Silica sol lost wax casting with CT6 tolerance and Ra0.8-1.6 machining roughness.

Wide Material Selection: Supports 304/316 stainless steel, carbon steel, duplex steel, and alloy steel.

Comprehensive Surface Treatment: Options include polishing, sand blasting, electro-polishing, plating, and powder coating.

Strict Quality Control: 100% final inspection, X-Ray, CMM, and ISO9001:2015 certified quality system.

Low MOQ & Fast Sample: Minimum order quantity is 1 piece with a sample development cycle of 25-35 days.

Professional Expertise: Over 15 years of experience in mold design, casting, machining, and surface treatment.

Flexible OEM/ODM Service: Customized parts from samples with support for precision machining and special treatments.

Global Export Experience: Exported to Europe, North America, Australia, and Singapore with stable quality.

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: ≤3.29h

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.