Shower head factoryCixi, Ningbo Send RFQ

Engineering support for product programs

Design and Manufacturing Capability

ZHONGHE supports shower head projects with appearance and internal structure design in PTC Creo Parametric, design-only work, 3D sample review, mold making through external toolmakers, injection molding, assembly, and packaging coordination.

O-ring supplier visual inspection equipment for shower head sealing parts
StageConservative timing or role
Appearance designAbout 15 days for many projects; final timing depends on product complexity.
Internal structure designAbout 15 days for many projects; engineering review depends on performance requirements.
Mold makingNew molds are made by external toolmakers. About 60 days for many projects; actual lead time depends on mold scope and confirmation rounds.
ProductionAbout 30 days of mass production once the specification is confirmed, including the first run on a new mold; a reference, not a guarantee. Injection molding, assembly, water testing, packing, and shipment preparation in ZHONGHE's own factory; chrome plating and painting are done by partner factories.

CAD and data

Design software and the files you receive

Appearance (ID) design and internal structure design are both done in PTC Creo Parametric (formerly Pro/ENGINEER). Buyers whose CAD system is different exchange STEP or IGES files.

ItemDetail
3D CADPTC Creo Parametric (formerly Pro/ENGINEER), for both appearance (ID) design and internal structure design
3D dataSTEP and IGES (neutral formats) and Creo native files (.prt / .asm)
Drawings2D engineering drawings
Prototype3D-printed prototype, used to check shape, assembly and hand feel before a mold is made

Design service

Design only: the product does not have to be made at ZHONGHE

ZHONGHE also takes design-only projects, where mass production does not have to happen at ZHONGHE. Appearance (ID) design, internal structure design and bubble-generating structures can be commissioned in whatever combination the project needs.

ItemDetail
ScopeAppearance (ID) design; internal structure design (water path, mode switching, seal layout, assembly); micro-bubble and ultra-fine (nano) bubble generating structures
DeliverablesSTEP / IGES 3D data, Creo native files (.prt / .asm), 2D engineering drawings, a 3D-printed prototype
Design feeQuoted per project
If production follows at ZHONGHEIf mass production then happens at ZHONGHE, the design fee can be credited against it; the conditions are confirmed per project
Timing guideAppearance design about 15 days, internal structure design about 15 days; working guides that move with complexity, not guaranteed dates
Design data and NDAHandling of the design data and the NDA are agreed per project at the inquiry stage

Design case

Design case: an in-wall concealed shower system

An in-wall (concealed) shower system that ZHONGHE designed for a customer. The customer name, model and dimensions are not published. It is an example of structural design for a water product beyond hand showers.

PTC Creo 3D assembly of an in-wall concealed shower system, housing shown semi-transparent, revealing the brass hot and cold valve block, waterways, three push-button openings and the handwheel
Creo 3D assembly with the housing shown semi-transparent: brass valve block, waterways, push buttons and handwheel.
Rendered exterior of an in-wall concealed shower system: glass front panel with digital display, three push buttons and a handwheel
Exterior: glass front panel, display, three outlet buttons and handwheel.
Rendered inside view of the in-wall shower system with the housing cover removed, showing the hot and cold valve block and the waterways
Inside, with the housing cover removed: valve block and waterways.
Exploded render of the in-wall shower system's internal parts, housing omitted
Exploded view of the internal parts (housing omitted).
ItemDetail
ProductIn-wall (concealed) shower system: glass front panel, digital display, three push buttons that select the outlet, and a handwheel
3D assemblyHot and cold valve block and waterways, outlet switching by the three buttons, hand shower and overhead shower outlets, glass front panel and housing
Main materialsH59-1 brass, SUS304 stainless steel, ABS, POM, NBR (O-rings), zinc alloy
Design softwarePTC Creo Parametric

Fine bubble development

Micro-bubble and nano-bubble generating structures

Fine bubbles are bubbles under 100 µm across. ISO 20480-1 calls those from 1 µm up to 100 µm microbubbles and those under 1 µm ultrafine bubbles, which retail copy often calls nano bubbles. ZHONGHE designs generating structures for both.

ItemDetail
Micro-bubble outlet structuresBoth air-intake (aspirating) and non-air-intake designs. For shower heads ZHONGHE recommends the non-air-intake type; the difference is explained on the fine bubble shower head page.
Ultra-fine (nano) bubble generating structuresJapanese utility model registration No. 3246521 (non-submerged ultrafine bubble generating device), whose certificate names ZHONGHE as the right holder, is of this type; see the registration record.
ZHONGHE's own bubble generatorsUltrafine bubble generators for washing machines (an adapter between the machine's water inlet and its inlet hose) and for faucets use the No. 3246521 structure; they have no catalog codes. See ultrafine bubble generators.
Simulation and test partsCandidate structures are compared in CFD simulation, and SLA 3D-printed test parts are made in-house; see the R&D note.
Track recordZHONGHE has developed bubble shower heads for customers; customer names are not disclosed.

Bubble counts and sizes are not published as guaranteed values; evaluate samples against your own standard. The utility model certificate is a registration record, not a product performance test; its current rights status and how it relates to a given product are checked per project.

Fine mist R&D

Finer mist development (R&D in progress)

Alongside the models in production, ZHONGHE is researching internal structures that make a finer mist from water pressure alone, without drawing in outside air (non-air-intake). This is R&D in progress, not a product: productization and sample timing are undecided.

ItemDetail
AimA finer mist from the flow inside the head rather than from narrower outlets alone, which would raise the risk of clogging and lose force on low household pressure
MethodCandidate shapes are compared in CFD; test discs are printed in-house by SLA 3D printing and spray-compared under ZHONGHE's standard condition (0.3 MPa before the nozzle, water at 38 °C)
StatusSecond prototype round as of September 2026; productization and sample timing are undecided
Not publishedInternal shapes, dimensions and measured values such as flow or droplet size

Details and spray-test photos are in the R&D note. No cleaning, beauty or skin effect is claimed. Brands and importers interested in the new mist structure can ask for a development update.

Production flow

From sourcing brief to shipment review

The project path depends on whether the buyer uses an existing model or requests new development.

  1. 01

    Model selection or brief review

    Share target market, product type, estimated quantity, package plan, and any benchmark product.

  2. 02

    Sample and specification discussion

    Confirm available models, materials, finish direction, flow expectations, and packaging requirements.

  3. 03

    OEM/ODM development

    Use existing models for faster projects or develop appearance, internal structure, 3D samples, and molds for ODM.

  4. 04

    Pilot confirmation

    Check samples, assembly details, water test results, packaging, labels, and shipment plan before mass production.

  5. 05

    Mass production and inspection

    Run injection molding, assembly, water testing, leakage checks, flow checks where needed, final packing and outgoing inspection. Chrome plating and painting are done by partner factories.

Registration records

Certificate and registration records

Each record gives what the certificate states: numbers, dates and the grantee. The certificates themselves are not published because they carry personal names.

Chinese shower head design registration CN307625750S

China National Intellectual Property Administration (CNIPA) · No. ZL 202230413532.3

Publication: CN307625750S

Filed 2022-07-01; grant publication 2022-10-28

Hand shower appearance. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Chinese shower head design registration CN307625751S

China National Intellectual Property Administration (CNIPA) · No. ZL 202230413533.8

Publication: CN307625751S

Filed 2022-07-01; grant publication 2022-10-28

Hand shower appearance. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Chinese shower head design registration CN307601664S

China National Intellectual Property Administration (CNIPA) · No. ZL 202230413546.5

Publication: CN307601664S

Filed 2022-07-01; grant publication 2022-10-18

Hand shower appearance. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Chinese shower head design registration CN308168868S

China National Intellectual Property Administration (CNIPA) · No. ZL 202330246297.X

Publication: CN308168868S

Filed 2023-04-28; grant publication 2023-08-11

Multifunctional hand shower appearance. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Chinese shower head design registration CN308279417S

China National Intellectual Property Administration (CNIPA) · No. ZL 202330359814.4

Publication: CN308279417S

Filed 2023-06-12; grant publication 2023-10-20

Hand shower appearance; document title names ZH2278C. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Chinese shower head design registration CN308286568S

China National Intellectual Property Administration (CNIPA) · No. ZL 202330388165.0

Publication: CN308286568S

Filed 2023-06-25; grant publication 2023-10-24

Baby shower head appearance; document title names ZH2985. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Catalog model named in this record

Chinese shower head design registration CN308872188S

China National Intellectual Property Administration (CNIPA) · No. ZL 202430185914.4

Publication: CN308872188S

Filed 2024-04-07; grant publication 2024-10-01

Hand shower appearance; document title names ZH2323. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Chinese shower head design registration CN309839519S

China National Intellectual Property Administration (CNIPA) · No. ZL 202530493202.3

Publication: CN309839519S

Filed 2025-08-20; grant publication 2026-03-10

Fillable shower head appearance. Certificate records 慈溪市中禾洁具厂 as the grantee.

An appearance-design registration record in China, not an invention patent or a test of filtration, bubble, skin or water-saving performance. Current rights status and the exact design supplied for an order must be checked separately.

Certificate details as printed; the certificate itself is not published because it carries personal names.

Go deeper

Related guides and pages

Mold developmentSpray modes and switchingOEM vs ODM guidePackaging and cartonsProduct development factoryABS plastic shower headsHandheld shower headsHandheld vs fixedInjection molding factoryMold maker and tooling

FAQ

Questions buyers ask

Short, factual answers so sourcing teams and AI search tools can quote them directly.

Can ZHONGHE design a product we will manufacture elsewhere?

Yes. ZHONGHE takes design-only projects, so mass production does not have to happen at ZHONGHE. Appearance (ID) design and internal structure design are both done in PTC Creo Parametric (formerly Pro/ENGINEER), and micro-bubble or ultra-fine (nano) bubble generating structures can be part of the brief. You receive STEP/IGES 3D data, Creo native files (.prt/.asm), 2D engineering drawings and a 3D-printed prototype. The design fee is quoted per project; if mass production then happens at ZHONGHE, the design fee can be credited against it. Handling of the design data and the NDA are agreed per project at the inquiry stage.

What CAD files do you deliver?

Appearance and internal structure are both designed in PTC Creo Parametric (formerly Pro/ENGINEER). The deliverables are STEP and IGES 3D data (neutral formats that other CAD systems import), the Creo native part and assembly files (.prt/.asm), 2D engineering drawings, and a 3D-printed prototype for checking shape, assembly and hand feel before a mold is made.

Can you develop micro or nano bubble shower heads?

Yes. ZHONGHE designs micro-bubble outlet structures, both air-intake and non-air-intake (the non-air-intake type is recommended for shower heads), and ultra-fine (nano) bubble generating structures; Japanese utility model registration No. 3246521, whose certificate names ZHONGHE as the right holder, is of that type. Candidate structures are compared in CFD simulation and SLA 3D-printed test parts are made in-house, and ZHONGHE has developed bubble shower heads for customers (names not disclosed). Bubble counts and sizes are not published as guaranteed values, so evaluate samples against your own standard.

What does ZHONGHE manufacture?

ZHONGHE manufactures and supplies hand shower products including filter shower heads, multifunctional shower heads, baby shower heads, pet shower heads, hair shower heads, LED shower heads, shower hoses, holders, filters, and related bathroom accessories.

Does ZHONGHE support OEM and ODM projects?

Yes. Buyers can use existing models for OEM private label programs or discuss ODM projects involving appearance design, internal structure design, 3D sampling, mold making, and production planning.

What is the typical MOQ?

MOQ ranges from 500 to 2,000 units depending on the model, finish and packaging: existing catalog models in a standard finish and standard packaging can start from about 500 units; a logo print or a color change typically from about 1,000 units; custom packaging, custom colors or new cartridge configurations from about 2,000 units. The final figure also depends on material, finish, and whether new development or mold work is required.

What quality checks are used before shipment?

Quality work can include incoming part checks, full water testing, leakage checks, O-ring inspection, flow testing for selected water-saving specifications, packaging checks, and final shipment review. Outgoing inspection samples each lot under GB/T 2828.1, with the AQL set to the customer's standard.

What should buyers send for an RFQ?

Useful RFQ details include product category, target market, estimated order quantity, benchmark photos or drawings, packaging needs, logo requirements, flow or finish requirements, and delivery timeline.

Send an RFQ

Tell us the category, quantity, packaging, and target market.

Attach benchmark photos or a sample picture. We reply with the closest existing model, or a route for OEM/ODM development.

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