Talk to an engineer:
liwen@molitech-eng.com WhatsApp LinkedIn Facebook TikTok WeChat
About Molitech

We were consultants
before we were founders.

Molitech exists because two engineers — one who audited filtration suppliers at Makino Machine Tool, one who deployed centralized systems at Dongfeng Mahle Power — saw the same gap: manufacturers worldwide need technical expertise and vetted Chinese suppliers, not just product catalogs.

Our Thesis

The filtration industry sells products. We diagnose systems.

When a Tier-1 plant experiences spindle failures or grinding burn scrap, the market response is to sell filter cartridges. The underlying contamination architecture — how coolant is cleaned, how cleanliness class is maintained, how the circuit is designed — is never examined.

This is not a product problem. It is a systems design problem. A filter cartridge installed in the wrong position, at the wrong flow rate, without the correct micron rating, will not solve anything. You need an engineer who understands the system, not a salesperson with a catalog.

"We don't walk into a plant and pitch a product. We walk in and read the machine — coolant clarity, pump pressure, wheel wear pattern. The system tells us what it needs."

— Liwen Zhuang, Co-Founder

Molitech's commercial position is built on this distinction. We enter as technical consultants, not suppliers. The diagnostic comes first. The supplier coordination and system specification follow from the diagnosis — not the other way around.

The Founding Team

Dual-axis diagnostic
capability.

Design-side quality engineering + field-side maintenance expertise. A diagnostic capability no single-discipline team can replicate.

Liwen Zhuang Co-Founder · Lead Technical Consultant
Liwen Zhuang
Former SQE · Japanese Tier-0 Machining Center OEM · VDA 6.3 Auditor

Built supplier quality engineering programs from zero at a Japanese Tier-0 machining center OEM, auditing coolant suppliers and filtration system vendors across China. Earlier led contamination control for Tier-1 automotive powertrain components (engine covers, transmission clutch drums). Drove VW engine cleanliness breakthrough: 800μm → 400μm ISO 4406. VDA 6.3 certified. She brings OEM-level supplier vetting standards and diagnostic expertise to Molitech's consulting practice.

Tier-0 OEM SQE VDA 6.3 ISO 4406 VW Powertrain 400μm Cleanliness
Simon Yu Co-Founder · Systems Integration Consultant
Simon Yu
T8 Senior Maintenance Expert · Sino-German JV Powertrain · TPM

T8 Senior Maintenance Expert — China's highest field maintenance certification grade. Led centralized coolant filtration deployments for CBN grinding and gear-machining lines at Sino-German JV powertrain plants (transmission assembly, engine machining). Deployed systems for 15+ machine cells with documented OEE improvement and wheel-life extension. TPM-certified. He brings field implementation expertise and supplier coordination experience to Molitech's consulting services.

T8 Expert Sino-German JV CBN Grinding TPM
Our Method

The 3-D Urgency Matrix.

Every engagement is scored against three dimensions before a recommendation is made.

Health

Operator mist/fume exposure. Spindle bearing wear rate. Surface finish instability. These signal contamination has already shifted from latent to active damage.

Compliance

NOM-052 disposal documentation. EIA occupational exposure limits. Wastewater discharge standards. Regulatory risk creates hard deadlines defined by the enforcement calendar.

Life

CBN wheel consumption rate. Coolant change frequency. Pump rebuild intervals. These make the ROI case concrete and verifiable before a system is proposed.

The Molitech Difference

Technical consulting
meets supply chain integration.

01
Independent Diagnosis

Not constrained by a manufacturer's catalog. We diagnose first, then coordinate vetted Chinese suppliers to source the best-fit architecture for your specific application.

02
Vetted China Supply Chain

World-class filtration systems from vetted Chinese suppliers. Accessed through Liwen's SQE-validated supplier network, applying Makino-standard acceptance criteria to every supplier we coordinate.

03
Custom System Engineering

No catalog products shipped. Every system is engineered to the specific flow requirements, cleanliness targets, OEM specs, and physical constraints of each plant.

04
Outcome Accountability

Every proposal includes defined success criteria: target ISO class, performance objectives, and measurable outcomes. These are contractual references, not marketing projections.

Work with the engineers
who set the standard.

Submit your equipment profile. Liwen and Simon review it within 48 hours, at no cost.

Request Diagnostic →