Which raw material brands do you use?

We use premium brands such as DuPont, Dow Corning, Bayer, and 3M.

How many mold sizes are available?

The factory has over 40,000 sizes with existing molds.

HNBR Rubber Diaphragm, Customize Size Diaphragm

Name: HNBR Rubber Diaphragm, Customize Size Diaphragm
Brand: Ningbo Boman Mechanical & Technology Co., Ltd.
SKU: 880863955

Zhejiang, ChinaNingbo Boman Mechanical & Technology Co., Ltd.

US$0.001

100 Pieces

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Material

Nitrile Rubber

Application

Machinery, Industrial Component, Electronic Product, Vehicle, Household Appliance

Model NO.

Rubber Parts

Effect

Rider Ring

Cross-Section Shape

Rectangle Ring

Storage Life

10years

Size

Custom Accept

Color

Black/Brown/Orange/...etc

Type

Any

Certificated

RoHS/Reach

OEM/ODM

Yes

Delivery Port

Ningbo/Shanghai

Sample Lead Time

3days

Free Samples

Yes

Delivery Way

Sea/Air/Express Delivery

Transport Package

Bag

Specification

Custom size

Trademark

Boman

Origin

China

HS Code

4016931000

Production Capacity

600000PCS/Month

Key features

Custom Size Acceptance: Size is customizable according to customer drawings.

Wide Hardness Range: Hardness adjustable from 20 Shore A to 95 Shore A.

Premium Raw Materials: Uses brands like DuPont, Dow Corning, Bayer, and 3M.

Extensive Mold Library: Over 40,000 sizes available with existing molds.

Multiple Material Options: Available in NBR, FKM, Silicone, EPDM, and HNBR.

Comprehensive Certifications: ISO/TS 16949, RoHS, Reach, FDA, KTW-W270 certified.

Fast Sample Delivery: Sample lead time is only 3 days with free samples.

Company profile

Ningbo Boman Mechanical & Technology Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2010-09-08Nearest Port: Ningbo, ShanghaiAverage Response Time: ≤15hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA

AI-Powered supplier vetting

SummaryNingbo Boman Mechanical & Technology Co., Ltd. is identified as a China-based manufacturer/factory producing rubber seals and related rubber, plastic, and silicone products. The supplier reports four production lines, 31–40 quality-control staff, and stated annual output across several product categories. It claims more than 12 years of export experience in one description and more than 15 years in another, with exports representing 71%–90% of total sales. Certifications listed include IATF 16949/TS 16949, ISO 9001, ISO 14001, ISO 20000, and product-related compliance certifications. Evidence also supports customization through a technical team that can adjust rubber formulas and an in-house mold department. The supplier states that it serves several global top 500 companies and offers a recall response for defective cargo, but no independently verified customer names or service-performance records are provided. Financial strength cannot be assessed because financial figures are excluded.

CertificationsThe supplier lists TS 16949, ISO 9001, ISO 14001, and ISO 20000 management-system certifications, and states that its factory is IATF 16949:2016 certified. It also lists KTW-W270, Watermark, LFGB, RoHS, REACH, and FDA product certifications or compliance credentials, although certificate documents and validity details are not provided.

After-Sales capabilityThe supplier explicitly claims to have a dedicated after-sales team and to recall problematic cargo 100% at the first opportunity. This supports a stated corrective-response capability, but no evidence is provided on response times, procedures, or verified service outcomes.

R&D capabilityThe supplier states that it conducts R&D and follows technological innovation, employs 21–30 R&D engineers, and can develop rubber-material formulas for different requirements. These statements indicate technical development resources, but no specific patents, new-product records, or quantified R&D results are supplied.

Production capacityThe supplier reports four production lines, 31–40 quality-control staff, and annual output of 1,000,000 valve stem seals, 10,000,000 O-rings, 10,000,000 oil seals, 1,000,000 bonded seals, and 10,000,000 customized molded rubber parts. Its listed products and factory certifications further support manufacturing capability, although capacity utilization and independent verification are not shown.

Customization capabilityThe supplier states that its technical team can customize rubber raw-material formulas and that it has an in-house mold department capable of fast mold processing and difficult molds. Its product scope explicitly includes customized molded rubber parts, providing direct evidence of customization capability.