Jiangsu HechaoJiangsu HechaoJIANGSU HECHAO MACHINERY Request a quote

Products

Manufacturing scope

Three manufacturing disciplines, supported by sourcing and assembly

We coordinate in-house production and assessed specialist suppliers to meet your drawings, standards, quantities and schedule. Hechao manages materials, processes, quality, records and final release.

Precision equipment mounting plate — Illustrative product
Manufacturing scope

Precision & post-weld machining

Turning, milling, boring, five-axis machining and post-weld machining to your drawings, tolerances and assembly requirements.

  • Turned parts: Shafts, pins, sleeves, flanges, precision rings and stepped parts.
  • Housings and blocks: Valve bodies, manifolds and complex bore patterns.
  • Plates and mounting parts: Baseplates, clamps, brackets and equipment interfaces.
  • Post-weld machining: Datum faces, mounting faces and holes on frames and bases.
Explore products and capabilities
Black-anodized aluminium equipment cover — Illustrative product
Manufacturing scope

Precision sheet-metal fabrication & equipment parts

Flat-pattern development, cutting, bending, welding, finishing and trial assembly for enclosures, guards, brackets, hoppers and sheet-metal assemblies.

  • Enclosures and guards: Equipment covers, control cabinets and panels.
  • Mounting assemblies: Brackets, supports, trays and welded assemblies.
  • Hoppers and containers: Stainless hoppers, collection boxes and sheet-metal vessels.
  • Assembly modules: Sheet metal, machined parts, standard parts and purchased components.
Explore products and capabilities
Stainless mixing and process tanks — Illustrative product
Manufacturing scope

Welded structures & tanks

Tanks, vessels, frames, bases, pipework, skid structures and screw-conveyor components, with coordinated post-weld machining, inspection, finishing and transport.

  • Tanks and vessels: Horizontal and vertical tanks and equipment vessels.
  • Frames and bases: Machine frames, platforms, bases and skid structures.
  • Pipework and assemblies: Pipe spools, flanges and custom welded components.
  • Conveying components: Screw conveyors, metering feeders, hoppers and supporting structures.
Explore products and capabilities
BOM-based mechanical component kit — Illustrative product
Manufacturing scope

Sourcing & assembly

We source standard, purchased and custom parts to your bill of materials (BOM). We also coordinate finishing and assembly interfaces, simplifying work across multiple suppliers.

  • Industrial components: Standard parts, drives, seals, valves and fittings.
  • Japan-origin sourcing: Material and component specifications and commercial coordination.
  • Equipment assembly: Modules combining machined, sheet-metal, welded and purchased parts.
  • Supply-chain management: Supplier evaluation, schedules, incoming checks and issue tracking.
Explore products and capabilities

Manufacturing scope

One project contact

One project plan connects drawing requirements, process handoffs and release criteria.

Manufacturing process

Product-specific workflow

Drawing reviewRevision, datum system, tolerances and assembly relationships.
Materials and blanksGrade, condition, heat numbers, castings, forgings and weldments.
First-article approvalDimensions, tools, fixtures and process parameters.
In-process inspectionCritical dimensions and fits checked during machining.
Manufacturing process

Product-specific workflow

Flat-pattern reviewThickness, material, bend radii, edge distances and interfaces.
Trial build and fitBend sequence, angles, dimensions and actual fit.
Welding controlSequence, heat input, distortion correction and visible-surface protection.
Surface finish and protectionFinish and protection specified by the material and drawing.
Manufacturing process

Product-specific workflow

Material traceabilityGrades, heat numbers, MTC and approved substitutions.
Joint preparation and fit-upAngle, root face, root gap, mismatch and cleanliness.
Welding processConsumables, sequence, interpass cleaning, heat input and distortion.
Inspection and testsVisual and dimensional checks, RT/UT/PT/MT, and leak, gas-tightness or pressure tests.

Manufacturing scope

Industry applications

Choose an industry to see illustrative products, materials, processes and interfaces. Actual designs and scope follow your drawings and project requirements.

01

Semiconductor equipment

Illustrative product; final design follows your drawings.

Precision equipment mounting plate — Illustrative product

Illustrative product

Precision equipment mounting plate

Materials / components
Stainless steel, Aluminium alloy, or as specified on the drawing
Finish / specifications
As-machined; finish to drawing
Processes / sourcing work
Milling, Drilling, Tapping, Finish machining
Application & interfaces
Datum faces, mounting holes and relative positions of faces
Black-anodized aluminium equipment cover — Illustrative product

Illustrative product

Black-anodized aluminium equipment cover

Materials / components
Aluminium alloy (A5052 / A6061)
Finish / specifications
Black anodizing
Processes / sourcing work
Cutting, Bending, Milling, Assembly
Application & interfaces
Openings, cooling vents and mounting interfaces

Manufacturing scope

Traceable processes, documented release

Agree inspection checkpoints and delivery records for the project, from requirements review through packing and transport.

01Drawing review

Confirm drawing revisions, materials, tolerances, standards, quantities and delivery dates.

02Manufacturing plan

Assign in-house and supplier work, process steps, inspection checkpoints and schedules.

03Manufacturing process

Follow the agreed process and record checks of critical requirements and any deviations.

04Inspection & testing

Release after checking agreed dimensions, appearance, quantities and inspection records.

05Packing & delivery

Protect machined surfaces, check identification and packing lists, and coordinate dispatch and transport.

AI-enhanced process illustration. Inspection results must be verified against original records.
Joint preparation and fit-upAngle, root face, root gap, mismatch and cleanliness.AI-enhanced process illustration. Inspection results must be verified against original records.
AI-enhanced process illustration. Inspection results must be verified against original records.
Welding–machining coordinationDistortion, machining allowance, datums and interfaces.AI-enhanced process illustration. Inspection results must be verified against original records.
AI-enhanced process illustration. Inspection results must be verified against original records.
Finish / specificationsStainless steel retains its natural finish without blasting; aluminium receives clear or black anodizing; carbon steel is bare or coated to drawing. Weld and bevel examples show the condition before coating.AI-enhanced process illustration. Inspection results must be verified against original records.

Manufacturing scope

Standards and project requirements

Agree the applicable standards, design responsibility, certification route, third-party involvement, inspection scope and records before quotation.

Editions and scope follow the project review and contract; listing a standard does not certify every product.

PED 2014/68/EUEU Pressure Equipment DirectiveEN 13445Unfired pressure vesselsASME BPVCBoiler and Pressure Vessel CodeCEApplicable conformity assessmentJISProject-specific Japanese Industrial StandardsNDTNondestructive testing methods and scope agreed per project

Before you enquire

Can I enquire before drawings are complete?

Start with the intended use, key dimensions, materials, quantity and service conditions. We will identify the information needed for a formal quotation during review.

Which files can I send?

Attach drawings to your email and specify the material, quantity and requested delivery date. Contact us first to agree how to transfer large files or confidential information.

Can we arrange an NDA?

Contact us to arrange an NDA before sending sensitive files.

What happens next, and how soon?

All confirmations within 3 business days

Enter your requirements, then use the button below to open an email draft. Attach your drawings and send it from your email app. This website does not accept online submissions or files, or send automatic acknowledgements.

Do you make custom parts?

Send custom-part drawings for review. We confirm the scope, materials, dimensions, inspection and documentation against the agreed drawings and contract.

Can we start with samples or a small batch?

Samples, first-article review and follow-on batches can be arranged after reviewing the project requirements.

Manufacturing scope

Send us your drawings and requirements

Send drawings, materials, quantities, standards and your target delivery date. If drawings are incomplete, start with the application, key dimensions and service conditions.

wang_chao@hhhb-sz.comChina +86 156 1837 6471Japan +81 90 1159 7141
Confidentiality & NDAContact us to arrange an NDA before sending sensitive files. Document and project confirmationAll confirmations within 3 business days China–Japan project supportOne project contact
01Select a service02Describe your requirements03Prepare enquiry email (attach drawings manually)

Enter your requirements, then use the button below to open an email draft. Attach your drawings and send it from your email app. This website does not accept online submissions or files, or send automatic acknowledgements.

Prepare enquiry email (attach drawings manually)

wang_chao@hhhb-sz.com · Privacy statement