custom sheet metal prototype fabrication in china-Hongming Sheng

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Our Service

We specialize in sheet metal fabrication, CNC machining, metal stamping, welding, and assembly. Our one-stop support helps save time, reduce costs, and improve efficiency.

our factory operates under an ISO 9001:2015 quality management system to ensure consistent quality and reliable delivery.

custom sheet metal prototype fabrication in china

Drawing-Based Prototype Manufacturing

Custom Sheet Metal Prototypes Before Tooling and Volume Production

Hongming Sheng supports engineering teams that need functional sheet metal parts for enclosure development, assembly trials, design verification and pilot builds.

Instead of treating a prototype as a simple cut-and-bend job, we review how material thickness, bend sequence, joining, hardware, finishing and inspection affect the finished assembly.

Request Prototype Quotation View Related Service

E-MAIL: info@hms1688.com

Project Snapshot

QUANTITYOne-off prototypes, small batches and pilot builds

INPUT3D model, 2D drawing, sample or development specification

OUTPUTFabricated parts with agreed finishing, inspection and assembly work

CONFIDENTIALITYNDA support for OEM and product-development projects

Prototype Applications We Commonly Support

Enclosure Development

Housings, covers and panels used to verify internal space, access, mounting and appearance.

Mechanical Fit Checks

Brackets and interfaces produced for alignment, fastening and equipment assembly trials.

Pilot & Pre-Series Builds

Small batches used before repeat production, dedicated tooling or market release.

Selecting a Practical Manufacturing Route

Cut & Bend

Suitable for many low-volume panels, brackets, covers and folded parts where dedicated stamping tooling is not justified.

Welded Fabrication

Used for housings, frames and assemblies that require joined sections, reinforced areas or internal mounting features.

Hybrid Processing

Combines sheet metal fabrication with CNC machining, threaded inserts, riveting or purchased hardware when the design requires it.

Production Review

When future volume increases, geometry and demand can be reviewed again to determine whether stamping or dedicated fixtures offer better value.

Engineering Workflow

STEP 01Requirement Review

Confirm material, thickness, revision, quantity, finish and critical interfaces.

STEP 02DFM & Routing

Review bend access, radii, holes, welding, hardware and fabrication sequence.

STEP 03Build & Control

Cut, form, join and inspect the prototype according to agreed requirements.

STEP 04Finish & Release

Complete finishing, final verification, packing and shipment preparation.

Factory Process Videos

Prototype Fabrication Video 1

Prototype Fabrication Video 2

Prototype Fabrication Video 3

Materials, Processes and Finishing

Materials & Core Processes

Carbon steel, stainless steel and galvanized or SECC sheet
Aluminum, copper and brass
Laser cutting and CNC press-brake bending
TIG/MIG welding where suitable
Drilling, tapping, riveting and hardware insertion
CNC machining support for selected features

Surface & Assembly Options

Powder coating and painting
Anodizing for suitable aluminum parts
Plating, brushing and polishing
Screen printing or laser marking
PEM-style hardware, rivets and studs
Subassembly and project-specific packing

Prototype Quality Review

Drawing Revision	Quotation, fabrication and inspection should use the latest approved drawing and model.
Critical Features	Identify datums, mating faces, hole positions, bend relationships and dimensions that affect assembly.
Surface Expectations	Mark cosmetic faces, grain direction, masking areas, finish color and acceptable appearance criteria.
Hardware & Joining	Confirm fastener type, thread specification, weld location, weld appearance and post-weld requirements.
Verification	Measurement scope and requested documentation should be agreed before manufacturing begins.

Send These Details for Quotation

Project Files

STEP/STP or IGES/IGS model plus DWG, DXF or PDF drawing when available.

Manufacturing Inputs

Material, thickness, quantity, finish, color, hardware, welding and assembly notes.

Acceptance Inputs

Critical tolerances, cosmetic side, inspection needs, destination and target delivery date.

Lead time and price are project-specific. Material availability, geometry, welding, surface treatment and inspection requirements can all influence the final quotation and schedule.

Move Your Sheet Metal Design into a Physical Prototype

Send your current drawing package and intended quantity. Our engineering team can review the fabrication route, highlight manufacturing concerns and prepare a quotation based on the submitted requirements.

Customer drawings, CAD files, samples and technical data are handled confidentially. NDA support is available.

E-MAIL: info@hms1688.com

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