01 / SUBTRACTIVE
CNC Machining
Milled and turned parts in metals and engineering plastics. Review complex geometry, fits, threads and finishing together.
CNC machining / Sheet metal / Prototyping
Custom parts.
Built to your
drawing.
Custom CNC machining and sheet metal fabrication, from your first prototype to repeat production.
Start with a drawing. Let’s work through the material, critical dimensions, finish and inspection requirements.
STEP / STP · IGES · PDF | Need an NDA first?
FROM DRAWING TO PART
Manufacturing starts with the details.
Prototype → Production
One part of a bigger plan.
Metals & engineering plastics
Material selection by application.
ISO 9001:2015
SGS-certified management system.
NDA before file sharing
Start the conversation securely.
Trusted by innovative companies
FROM ENGINEERING TEAMS TO GLOBAL BRANDS
01 / Manufacturing capabilities
The right process.
For the part you need.
Explore the core manufacturing routes. We confirm process suitability, tolerances and lead time against your drawing and order requirements.
02 / FABRICATION
Sheet Metal
Enclosures, brackets and formed components. Plan the cut, bend sequence, hardware and finish around the assembly.
03 / DEVELOPMENT
Rapid Prototyping
Explore a manufacturing route for fit checks, functional testing and design iterations before committing to production.
MACHINED GEOMETRY / MATERIAL & FEATURE REVIEW
Built around your requirements
A part that fits.
A process that makes sense.
Geometry is only the beginning. A useful manufacturing conversation connects the drawing to how the part will be used.
- 01Material & application
Grade, operating conditions and required documentation. - 02Dimensions that matter
Critical tolerances, mating features and inspection points. - 03Quantity & delivery
Prototype needs, repeat orders and the target schedule.
02 / Quality & inspection
Quality is a process.
Evidence is part of it.
Our quality management system is certified to ISO 9001:2015 by SGS. From material verification to final inspection, requirements and records are aligned with the drawing and agreed order scope.
Inspection planning, sampling and documentation are confirmed against the drawing and quotation.
01
Drawing & requirement review
Identify critical dimensions, finish specifications and open technical questions before the order is confirmed.
02
Inspection matched to the feature
Define the measurement method and sampling requirements for the characteristics that determine acceptance.
03
Documentation agreed in advance
Specify material records, dimensional reports or other inspection documents in the request. Availability is confirmed in the quotation.
Inside the inspection room
The equipment.
The checks behind the part.
Material identity and dimensional conformity answer different questions. The inspection method is selected for the feature, material and acceptance requirement.
01 / DIMENSIONAL MEASUREMENT
Coordinate measuring machine
CMM measurement for dimensional and geometric features, with the setup and measurement plan matched to the part.
02 / CRITICAL FEATURE CHECKS
Probe-based feature inspection
Checks focused on drawing-defined features such as bores, pockets and reference surfaces. Critical dimensions are identified before release.
03 / MATERIAL VERIFICATION
Handheld alloy analysis
Elemental analysis supports alloy identification alongside material supplier documentation. Suitable methods depend on the alloy and elements being checked.
Other inspection methods, including optical measurement, hardness and surface roughness checks, are reviewed according to project requirements.
Documented quality management
ISO 9001:2015.
Quality management, documented.
The quality management system of PROLEAN MFG (SHENZHEN) CO LTD has been assessed and certified by SGS.
- Certificate number
- CN24/00004900
- Certified scope
- Production of hardware accessories
- Certification body
- SGS United Kingdom Ltd
- Certificate dates
- 05 Aug 2024 – 04 Aug 2027
The certificate remains valid subject to satisfactory surveillance audits. Read the original document for the full scope, entity and conditions.
03 / Application thinking
Different parts.
Different questions.
Explore typical requirements for machined and fabricated components. Images illustrate manufacturing applications; they are not presented as verified customer projects.
CNC / HOUSINGS
Machined components
When mating geometry and alignment determine whether an assembly works.
- REVIEW FOCUS
- Bores · datum scheme · surface finish
- TO DEFINE IN THE RFQ
- Material grade, fits and inspection criteria
SHEET METAL / ASSEMBLIES
Formed components
When bends, hole positions and hardware need to work together.
- REVIEW FOCUS
- Bend radius · hole clearance · assembly fit
- TO DEFINE IN THE RFQ
- Thickness, hardware and coating specification
TURNING / MOTION COMPONENTS
Turned components
When fit, concentric features and surface condition matter in motion.
- REVIEW FOCUS
- Concentricity · mating diameters · threads
- TO DEFINE IN THE RFQ
- Fit requirements, finish and order quantity
EXPLORE BY APPLICATION
Material & finishing decisions
Define the grade.
Then finish the details.
Material grade, surface treatment and critical features should be reviewed together. Specify the requirements you already know; flag the decisions that need engineering input.
01 / METALS
Aluminum, steel & more
Aluminum, stainless steel, carbon steel, brass and copper. Specify grade, temper and required material documents.
02 / ENGINEERING PLASTICS
Parts made for the application
ABS, POM, nylon, PC and PEEK. Review the operating environment, fit and material behavior before machining.
03 / SURFACE FINISHING
Function as well as appearance
Define coating, color, surface texture and masking requirements. Finish can affect dimensions and assembly fit.
04 / From inquiry to delivery
A clear next step.
At every stage.
Start with the information available, then agree the manufacturing details, inspection requirements and delivery plan.
01 / SHARE
Send the part details
Upload CAD and drawings where available. Add material, quantity, finish and your target date.
02 / REVIEW
Resolve the questions
Discuss manufacturing feasibility, critical requirements and the quotation scope.
03 / CONFIRM
Align before production
Confirm the drawing revision, order details, inspection requirements and delivery terms.
04 / DELIVER
Inspect & coordinate shipment
Complete the agreed checks and coordinate documentation, packaging and delivery.
Before you start
A few practical
questions.
Have a part-specific question?
Start with an engineering conversation.
Where can I see your ISO 9001 certificate?
Our SGS ISO 9001:2015 certificate is available to open as a PDF or review in the certification section. Certificate number: CN24/00004900. The certified scope is Production of hardware accessories.
What do you need for a quotation?
Share a 3D model and a 2D drawing where available, plus the material grade, quantity, finish and target delivery. Mark critical dimensions, threads and required inspection records.
Can we arrange an NDA before uploading?
Yes. Contact the team to request an NDA and complete the agreement before sharing confidential drawings.
Can you support prototypes and repeat orders?
Start by explaining the quantity you need now and any planned follow-on demand. Process suitability, capacity and production arrangements need to be confirmed for the project.
What tolerances and lead times can you offer?
These depend on the geometry, material, process, quantity, finishing and inspection requirements. Final commitments should be stated in the agreed quotation rather than assumed from a general website claim.
Can I ask a question without a finished drawing?
Yes. Describe the intended use, approximate geometry and what you are trying to resolve. A drawing or further specification may be needed before pricing can be confirmed.
Let’s look at the part.
Your drawing is a good place to start.
Bring the requirements you know. We’ll identify what needs clarification.