engineering fundamentals Soochow Advance Industries Co., Ltd.

Soochow Advance Industries Co., Ltd.

Soochow Advance Industries Co., Ltd., is a China-based contract manufacturer in the precision CNC engineering industry. 

We offer comprehensive machining services for global customers.

We specialize in producing non-standard CNC milled & turned parts using multi-axis sliding head and fixed head lathes. 

With sliding head multi-axis CNC lathes (Star, Citizen,Tsugami), we are capable of producing precision complex parts requiring turning, milling, drilling, tapping, broaching etc a single setup.  

With the combination of a high-powered turning center and a full-function machining center, we produce parts by multi-tasking.

Throughout these years we have invested heavily in order to bring our customers the benefits of multi-tasking machining technologies. 

Many of our CNC lathes are equipped with automatic bar feeders, which allows us to machine larger batch quantities unattended and produce high volume machining with low labour inputs. 

Our CNC machining, turning and milling centers (Robodrill, Doosan, Haas) provide us with expanded capabilities in the machining area.

Our CNC machining facilities is complimented by a range of manual lathes with secondary capabilities including: milling, drilling, tapping, external broaching, threading, thread rolling, slotting, reaming, knurling, grinding, burnishing, shaving, trimming, laser marking etc. 

We can work with a wide variety of materials including metals, say, carbon steel, stainless steel, aluminium alloy, copper alloy, pure titanium and titanium alloy and etc, 

as well as engineering plastics, say, nylon, POM etc. 

We are able to meet demands for various material surface finishes, including sand blasting, powder painting, plastic spraying, anodizing, deactivation, electrolytic polishing, mirror polishing, black oxide coating, electrophoresis, galvanizing, nickel plating, gold plating, silver plating, copper plating, zinc-plating, decorative chrome finish, hard chromium plating etc. 

We supply custom tight-tolerance parts and assemblies for a diverse range of industries.

Our products include OEM mechanical / machine parts & components, industrial fasteners, screws, bolts, nuts, electric connectors, couplings, pipe fittings, inserts, studs, threaded rods, shafts, pins, stand-offs, spacers, bushings, electronic hardware etc. 


Throughout the manufacturing process our CNC machine programmers and operators continually monitor products in order to verify that measurements adhere to the drawing’s specifications. 

By employing digital calibration and measurement techniques (2 & 3 dimensional image detector e.g. CMM Zeiss), our full-time quality assurance department inspects at first-off, intermediate stages during production and final inspection to ensure products meet the required specifications and tolerances. 

Our highly trained and experienced staffs can offer you in-depth engineering support and work from your drawings to provide a cost effective supply solution.

The CNC capability allows us to be more flexible and enables us the option to produce smaller lot sizes to meet customers’ needs.

Our manufacturing facilities are located in Taicang Suzhou, quite near metropolitan Shanghai. In this industrially developed area, with the complete supply chain for machining industry, we can easily get various kinds of materials with the right sizes, correlative secondary operation support and material surface treatment etc. It’s very convenient to deliver goods by sea, air and railway & land to the rest of all the world.

Over these years, we have been exporting a wide range of precision parts regularly to many countries, say, USA, Germany, UK, Japan etc. Our machining quality has been well received by a lot of overseas customers.

We sincerely anticipate the chance to work with you.


Welcome to our website for more information.


contract manufacturing - cnc turning, milling, machining

custom made precision specialty machine parts & components

customized non-standard fasteners, screws, nuts, bolts

non-standard pipe / tube fittings

precision industrial electronic hardware 


Contact Roy Zhang
Address 7-80 South Chengxi Road, Taicang, Jiangsu Province
Country China
Telephone +86-512-53566992
 Showcase Products

click image to enlarge.
Custom OEM Precision Machine Parts CNC Turning & Milling

nozzle part

manufactured by CNC turning and milling on sliding head multi-axis CNC lathe

material: brass

size: diameter 19.5 mm, length 16 mm

tolerance: DIN 2768-F

-Manufacturing , Processing and Tooling > Custom Machined Parts
-Manufacturing , Processing and Tooling > Specialty Manufacturing
-Services > Contract Manufacturing

click image to enlarge.
Precision CNC Machining Bolts Custom OEM Industrial Fasteners

Lens Frame Fastener

material: stainless steel 303


chamfer - both ends 0.09±0.03 inch

thread grade: rolled 3/8-18 NPSM thread x 0.82±0.03 inch 



cap outer diameter 1.00±0.03 inch, 

height 1.38±0.03 inch

cap groove - width 0.062±0.015 inch, depth 0.093±0.015 inch

through hole diameter 0.39±0.03 inch, for wireway

-Electrical and Electronic Components > Fasteners and Hardware
-Mechanical Components > Fasteners and Hardware
-Mechanical Components > Screws, Bolts and Nuts

click image to enlarge.
CNC Turned Parts Custom Industrial Fittings Steel Pipe Nipples

hex pipe nipple

material: carbon steel ASTM 1045

finish: zinc plated

size: hex distance across flats 1.125 inch,  length 1.96 inch

thread: 3/4 NPTF, 14 threads per inch, 0.55 inch thread engagement

manufacturing process: sawing, turning, threading, plating

-Fluid Flow > Tubings and Fittings
-Manufacturing , Processing and Tooling > Pipes, Tubes, Hoses, Fittings and Accessories
-Mechanical Components > Couplings, Collars and Joints

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CNC Turning Machine Parts - Power Transmission Shaft

turbine shaft

manufactured by CNC turning

material: cold drawn 18-8 (303) stainless steel, 

surface finish: passivation


hex bar incircle diameter 5.556 +0.000/-0.060 mm

internal thread: 8-32 UNC 2B, on both ends

2 grooves, width: 0.64 +0.10/-0.00 mm

length: 173.50 +/-0.05 mm

-Manufacturing , Processing and Tooling > Turning and lathe
-Mechanical Components > Power Transmission
-Services > Manufacturing Subcontract Shops

click image to enlarge.
CNC Milling Parts - Clamping Plate

clamping plate

material: aluminum alloy AlMg3

size: 15 x 35 x 66 mm

1 internal thread: M8 - 6H in the middle, 

2 internal threads: M6 - 6H

central circle diameter: 30.20 +0.10/-0.00

all 90°to be made as 0.5mm x 45° 


tolerance according to ISO 2768-F grade

unit weight: 57.31 g


manufactured by CNC machining center

-Manufacturing , Processing and Tooling > Milling
-Mechanical Components > Assembly Hardware
-Services > Process Engineering

Related Product Categories
Electrical and Electronic Components
Fasteners and Hardware
Small components and hardware for electrical and electronic applications.
Manufacturing , Processing and Tooling
Pipes, Tubes, Hoses, Fittings and Accessories
Fluid transfer components, including all size hose, pipe, and tubing, with various general use and application-specific fittings.
Specialty Manufacturing
Equipment and components used for specialized applications. Some examples include wire straightening, lubrication, and the creation of extrusions, pultrusions, castings, and molded shapes.
Mechanical Components
Couplings, Collars and Joints
Mechanical shaft-mounting components for transmitting motion between two shafts, locking or locating components, or as mechanical stops.
Fasteners and Hardware
Components used to fasten or secure one part to another, such as screws, rivets, bolts, nuts, and clips.
Power Transmission
Belts and pulleys, sprockets and chains, gears, and other drive components used to transmit power.
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