ABOUT PROLEANTECH · ESTABLISHED IN 2019

The people behind
your next part.
From drawing to reality.

ProleanTech combines in-house manufacturing, engineering support and an established supply chain to deliver custom parts for customers worldwide.

Founded in 2019, we established our first owned factory in 2023. Today, our Shenzhen operations connect drawing review, production and finishing through a single project team.

Talk to our team ↗Meet ProleanTech ↓

✓ISO 9001:2015 · SGSCertificate & quality team ↓

Your files stay confidential.Optional NDA available ↗

01 / WHO WE ARE

Established in 2019.
Manufacturing in Shenzhen.

2019Company established.
First owned factory in 2023.

ProleanTech is a precision manufacturing partner with its own production facilities and an established network of specialist suppliers.

Since our establishment in 2019, we have developed our capabilities around the practical requirements of custom parts: process selection, material specification, dimensional control and clear communication. In 2023, we established our first owned factory, bringing production and project coordination closer together.

In 2022, we established a digital production workflow to coordinate quality requirements, production schedules and process consistency. Our first owned factory followed in 2023, and our quality management system received SGS ISO 9001:2015 certification in 2024.

Today, our Shenzhen operations and established supply chain bring complementary processes, materials and finishes into a coordinated service. We support customers worldwide, with a focus on clear communication, consistent quality and continuity across repeat orders.

2019 / ESTABLISHED

Company
established.

ProleanTech was founded to support custom part projects with manufacturing expertise and coordinated service.

2022 / DIGITAL WORKFLOW

Connected production
management.

A digital production workflow was established to support quality control, schedule coordination and consistency across production.

2023 / FIRST OWNED FACTORY

Our first factory
in Shenzhen.

Direct manufacturing capability brought engineering, production and quality into closer coordination.

2024 / SGS CERTIFICATION

ISO 9001:2015
certified by SGS.

Our quality management system received SGS certification, with the scope documented in certificate CN24/00004900.

View the certificate ↓

02 / THE PROLEAN WAY

Professional service.
Lean manufacturing.

Our approach combines professional project support with disciplined processes and continuous improvement.

PRO / PROFESSIONAL SERVICE

Engineering-led communication.

Our business and engineering teams connect your requirements with the people making your parts. We discuss the drawing, flag open questions and communicate project progress so you can make informed decisions.

Drawing and DFM review before the route is agreed
Clear discussion of material, finish and inspection needs
Timely feedback on questions, changes and progress

LEAN / LEAN MANUFACTURING

Process discipline.
Continuous improvement.

We apply lean thinking to the way work is organised: clear requirements, coordinated operations and continuous improvement. The aim is to reduce avoidable rework and support dependable quality across repeat orders.

Process planning around the part and its critical features
Coordination across our factory and supply chain
Attention to inspection, feedback and production continuity

CLOSE TO THE WORK

Technical understanding.
Shared responsibility.

Direct discussion between the people reviewing requirements and the people working on the parts.

03 / ONE COORDINATED MANUFACTURING SERVICE

Integrated capabilities.
From review to delivery.

Our own manufacturing capabilities and partner network connect multiple processes, materials and finishes around your project.

Manufacturing in Shenzhen, supported by a coordinated supply chain.

Drawing review & DFM

Review geometry, critical dimensions and manufacturing requirements to help identify a practical production route.

Materials & composition checks

Coordinate metal and engineering plastic options, with alloy identification and material documentation according to project requirements.

Machining & multi-process production

Combine CNC machining and sheet metal work with additional manufacturing routes through our supply chain.

Finishing, inspection & delivery

Bring surface treatment, inspection, packaging and shipment into the same project plan.

DRAWING & DFM→MATERIAL→MANUFACTURING→SURFACE FINISH→INSPECTION & DELIVERY

04 / OUR MANUFACTURING ENVIRONMENT

Inside our factory.
Connected across the process.

Explore the CNC workshop, supporting operations and storage areas, then meet the team and the workplace behind your project.

CNC workshop with machining centres along a marked aisle — **CNC workshop**CNC machining centres arranged around a clear production aisle.

Supporting machining equipment and marked work areas — **Supporting processes**Supporting equipment within the production area.

CNC machining centre with tools arranged nearby — **Machining centre**A closer view of a machining centre and its tooling area.

Workshop equipment alongside tooling storage racks — **Tooling & workshop organisation**Equipment, tooling and organised workshop storage.

Warehouse aisle with shelving and packaging materials — **Storage & dispatch**Storage and packing areas supporting the movement of parts.

THE PEOPLE & THE PLACE

Meet the team. See the workplace.

ProleanTech team standing together in the CNC workshop — **Our team**The ProleanTech team, together on the machining floor.

Factory entrance with Prolean signage — **Factory entrance**Our factory entrance in Shenzhen.

Prolean office reception with a branded wall, front desk and indoor plants — **Office & reception**A welcome to our office and project team.

Meeting room with a long table and chairs — **Meeting room**Space for project discussions and collaboration.

Come and see how we work.

Discuss a factory visit or ask for a walkthrough focused on your project.

Arrange a conversation ↗

05 / QUALITY, FROM SYSTEM TO SHOP FLOOR

Quality is a system.
And a responsibility people carry.

Our quality approach connects a certified management system, trained inspection personnel and checks agreed around your drawing.

SGS ISO 9001:2015 certificate for PROLEAN MFG (SHENZHEN) CO LTD

Open PDF ↗

QUALITY MANAGEMENT SYSTEM

ISO 9001:2015
Certified by SGS

Organisation: PROLEAN MFG (SHENZHEN) CO LTD
Certificate: CN24/00004900
Document scope: Production of hardware accessories
Validity stated in document: 05 Aug 2024 – 04 Aug 2027

View certificate & scope ↗

INSPECTION PERSONNEL

PC-DMIS CMM
Operator qualification

Certificate issued through Hexagon / Serein for a member of our inspection team.

It documents an individual’s qualification in operating PC-DMIS CMM software, supporting the people behind dimensional inspection.

Personnel qualification, separate from the company’s ISO management system certification.

ISO certificate validity is subject to surveillance audits. Certificate scope and project-specific inspection requirements should be read separately.

Inspection room with coordinate measuring equipment — **Dimensional inspection**Measurement methods and critical features agreed for your part.

Technician using a handheld alloy analyser — **Material composition checks**Alloy identification alongside the specified grade and records.

Prolean team member inspecting a machined part at the workbench — **Checks close to production**Attention to the part throughout the manufacturing process.

Tell us which dimensions, material records and inspection reports your quality team needs. We will bring them into the project discussion.

Discuss your quality requirements ↗

06 / WHY WE KEEP BUILDING

A clear purpose.
A long-term commitment.

We aim to support the full life of a part, from development and initial production to repeat orders and design changes.

OUR MISSION

Make custom manufacturing
more dependable.

Help customers turn designs into manufactured parts through sound engineering review, appropriate processes and consistent attention to quality.

OUR VISION

A long-term manufacturing partner
for development and production.

Develop the capabilities, people and supplier relationships that allow customers to introduce new products and sustain production with confidence.

Customer understandingQuality & consistencyContinuous improvementLong-term partnership

07 / CLOSE COMMUNICATION, ACROSS BORDERS

Manufacturing in China.
Supporting customers worldwide.

We work with customers across North America, Europe and other regions. International project experience informs how we review requirements, coordinate production and communicate progress.

Your commercial contact coordinates with engineering, manufacturing and quality, helping keep the conversation connected as the project moves through different processes.

Meet your project team ↗

WHAT YOU CAN EXPECT FROM THE CONVERSATION

Technical questions addressed.

Discuss DFM, materials, critical features and process choices with the team.

Changes brought into view.

Keep drawing revisions, specification changes and open decisions in the same discussion.

A relationship beyond the first order.

Build shared understanding of your parts, quality requirements and ongoing production needs.

08 / CONTACT & LOCATIONS

Meet the team.
Talk through the requirements.

Contact our team to discuss a project, supplier documents or a factory visit.

DIRECT CONTACT

quotes@proleantech.com ↗

+86 199 2669 6972 +44 7729 718039

Your files stay confidential.
Privacy Policy ↗ · Optional NDA available ↗

Shenzhen factory

Room 101, Building B, No. 15 Lingxia Road,
Bao’an District, Shenzhen 518103, China

View listed address on Maps ↗

Hong Kong office

Unit 2, 22/F, Richmond Commercial Building,
109 Argyle Street, Mongkok, Kowloon,
Hong Kong, China

View listed address on Maps ↗

The people behindyour next part.From drawing to reality.

Established in 2019.Manufacturing in Shenzhen.

Companyestablished.

Connected productionmanagement.

Our first factoryin Shenzhen.

ISO 9001:2015certified by SGS.

Professional service.Lean manufacturing.