Real Factory · Real Equipment · Real Testing All Images Shot On-Site — No Stock Photos SGS & TUV Verified · Chongqing, China
CNC machining workshop floor with multi-axis machines
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Chongqing · 6,000 m² · Workshop A

CNC Machining
Production Floor

Multi-axis CNC centers operating 6 days a week — bore, surface, and valve seat machining all under one roof. No sub-contractors, no tolerance drift.

In-House Machining No Outsourcing ±0.01mm Tolerance
Automated engine assembly line with torque stations
02
Assembly Line · Torque-Spec Controlled

Automated Engine
Assembly Systems

Every fastener torqued to OEM specification. Assembly SOP documented and accessible to buyers. Ships ready-to-install — no local machining or re-assembly required.

OEM Torque Spec SOP Documented Ready-to-Install
Dynamometer cold and hot dyno testing station
03
QC Station · 100% Test Coverage

100% Dyno Tested.
Zero Compromise.

Cold-start and hot-run cycles. Every engine ships with a signed test report — not a sample certificate. Not batch-based. Every single unit.

Cold Run Verified Hot Run Verified Signed Test Report
Vacuum pressure testing equipment for cylinder heads
04
Vacuum Testing · Cylinder Heads

Micro-Crack Detection
Before It Ships

Vacuum pressure testing catches porosity and combustion chamber seal failures — eliminating the #1 cause of aftermarket returns and warranty claims.

Porosity Detection Seal Integrity Every Head Tested
Finished goods warehouse with fumigation-free wooden crates
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Export Ready · Sea Freight Optimized

Fumigation-Free
Export Packaging

Rust-inhibited, impact-resistant wooden crates rated for LCL and FCL sea freight to North America, Europe, Latin America, and Australia.

Rust-Inhibited LCL / FCL Ready Fumigation-Free
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SGS & TUV Verified
6,000 m² · Chongqing, China
20+ Years OEM/ODM
50+ Countries Served
100% Unit Test Coverage
Production Capability · In-House · No Outsourcing

CNC Multi-Axis Machining
& Automated Assembly Lines

Every component is machined in-house on CNC lines before moving to the assembly floor — no outsourced machining, no tolerance surprises. What you see here is what goes into every engine we ship.

CNC×Multi

Axis Machining

In-House

No Outsourcing

±0.01

mm Tolerance

CNC multi-axis machining center in full operation
CNC Machining Center

Multi-Axis CNC Center

Precision bore, surface finish, and valve seat machining — all in one integrated workflow. No sub-contractors, no tolerance drift.

Bore Surface Valve Seat ±0.01mm

Multi-Axis CNC Center

Bore · Surface · Valve Seat — All In-House

Cylinder head surface machining process

Cylinder Head Machining

Surface flatness to OEM spec

Cylinder Head
Engine block boring and honing operation

Block Boring & Honing

Cylinder bore to ±0.01mm tolerance

Engine Block
Crankshaft precision grinding station

Crankshaft Grinding

Journal finish for bearing longevity

Crankshaft
Assembly line torque wrench station

Torque Assembly Station

Digital torque control per OEM spec

Assembly
Valve seat cutting and insertion process
Valve Seat

Valve Seat Cutting & Insertion

Hardened seats for extended valve life

Piston and connecting rod assembly station
Piston / Con-Rod

Piston & Con-Rod Assembly

Ring gap set and pin clearance verified

Finished engine long block awaiting QC inspection
Pre-QC

Long Block Pre-QC Stage

Visual and dimensional check before dyno

Camshaft precision measurement and inspection
Camshaft Inspection

Camshaft Lobe Measurement

Lift profile and base circle verified against OEM drawings before assembly clearance.

Oil gallery flushing and cleaning station
Oil Gallery

Oil Gallery Flushing & Cleaning

All passages pressure-flushed before final assembly

Packaging line with fumigation-free wooden crates
Packaging

Export Crating & Rust Protection

Anti-rust wrap + fumigation-free wooden crate, sea freight rated

End-to-End Production Flow — No Steps Outsourced

01

Raw Material

Incoming inspection
& certification check

02

CNC Machining

Multi-axis precision
bore & surface finish

03

Assembly

Torque-spec controlled
per OEM standard

04

Testing

Dyno + Vacuum
100% unit coverage

05

Export Pack

Fumigation-free crate
sea freight ready

Quality Assurance · Hardware Proof · Not Sample-Based

Dyno & Vacuum Testing.
Every Single Unit.

Not sample-based. Not batch-based. Every engine and cylinder head that leaves this facility has a signed test report attached to it. This is the equipment that makes that guarantee possible.

100%

Test Coverage

2yr

Warranty

60k

KM Covered

Dynamometer cold and hot dyno testing station for bare engines
Dyno Station
Bare Engine Test

100%

Every Engine Tested

Dynamometer Testing

Cold + Hot Run

Cold-start and hot-run dyno cycles verify power output, oil pressure, coolant temperature stability, and blowby — before any engine is cleared for shipment. Test data is logged and available on request.

Cold Run Cycle

Initial startup, oil pressure verification, blowby check

Hot Run Cycle

Full operating temp, power output & thermal stability

Parameters Logged

Oil Pressure Coolant Temp Power Output Blowby Fuel Consumption
Vacuum pressure testing equipment for cylinder heads
Vacuum Station
Cylinder Head Test

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Cracks Missed

Vacuum Pressure Testing

100% Heads

Every cylinder head undergoes vacuum pressure testing to detect micro-cracks, porosity, and combustion chamber seal integrity — eliminating the #1 cause of aftermarket failures and warranty claims.

Crack Detection

Micro-porosity and casting defect identification

Seal Integrity

Combustion chamber and water jacket pressure hold

Failure Modes Caught

Micro-Cracks Porosity Valve Seal Leak Water Jacket Breach

Digitally Logged. Traceable by Serial Number.

Our QC records don't exist on paper alone. Every engine's dyno and vacuum test data is logged digitally, traceable by serial number — so you always know what was tested, and how.

Dyno Test Data Vacuum Test Record Serial-Level Traceability Available on Request

Can't Visit? Get a Live Factory Walk-Through

We schedule live video tours of the production floor and testing stations at your convenience — no travel required.

Request Video Tour