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Mechanical Assembly
Clear FiltersJiangsu, China
Premium Member 2 yrs
Machining
Pump & Valve & Fittings
Assembly
Milling & Turning
Four-Axis Horizontal Machining Center
Pump
Turning
CNC Milling & Milling
+4
Factory Size
5,000-10,000 ㎡
Employees
101-200
Certifications
ISO 9001
Product Equipment
40 types / 72 sets
Zhejiang, China
Premium Member 1 yrs
Machining
Casting
Assembly
Forging
Die Casting
CNC Milling & Milling
Turning
Mechanical Assembly
+6
Factory Size
5,000-10,000 ㎡
Employees
1-50
Certifications
ISO 9001
Product Equipment
77 types / 123 sets
Jiangsu, China
Premium Member 2 yrs
Fabrication
Machining
Assembly
Welding or Bonding
Bending
Cutting
Structure
CNC Milling & Milling
+2
Factory Size
10,000-30,000 ㎡
Employees
101-200
Certifications
IATF16949
Product Equipment
11 types / 79 sets
Guangdong, China
Premium Member 2 yrs
Stamping
Assembly
Molding
Mold Making
Stamping
Deep Draw
Progressive Die Stamping
Fine Blanking
+11
Factory Size
10,000-30,000 ㎡
Employees
201-500
Certifications
IATF16949, ISO 9001, ISO 14001, ISO 45001, IATF16949
Product Equipment
61 types / 94 sets
Guangdong, China
Premium Member 1 yrs
Molding
Multi-Shot Injection Molding
Injection Molding
Mold Making
Other Injection Molding
Assembly
Electronics Assembly
Mechanical Assembly
+2
Factory Size
3,000-5,000 ㎡
Employees
51-100
Certifications
ISO 9001
Product Equipment
30 types / 30 sets
Zhejiang, China
Premium Member 2 yrs
Machining
Mold Making
Fabrication
Assembly
Turning
Boring & Milling Machining
CNC Milling & Milling
Electrical Products Assembly
+12
Factory Size
10,000-30,000 ㎡
Employees
201-500
Certifications
ISO 9001
Product Equipment
57 types / 163 sets
Anhui, China
Premium Member 2 yrs
Stamping
Assembly
Molding
Mold Making
Stamp Die Making
Deep Draw
Injection Mold Making
Progressive Die Stamping
+3
Factory Size
10,000-30,000 ㎡
Employees
51-100
Certifications
IATF16949, ISO 14001
Product Equipment
-- / --
Guangdong, China
Premium Member 2 yrs
CNC Milling & Milling
Turning
Machining
Assembly
Fabrication
5 Axis Milling
Swiss Machining
Four-Axis Horizontal Machining Center
+10
Factory Size
1,000-3,000 ㎡
Employees
51-100
Certifications
ISO 9001
Product Equipment
-- / --
Zhejiang, China
Premium Member 1 yrs
Bending
Welding or Bonding
NC Punching
Cutting
Structure
Tube Modification
Others
Stamping
+10
Factory Size
5,000-10,000 ㎡
Employees
500+
Certifications
IATF16949, ISO 14001, ISO 9001
Product Equipment
19 types / 229 sets
Zhejiang, China
Premium Member 5 yrs
Mold Making
Molding
Stamping
Assembly
Casting
Injection Molding
Blow Molding
Multi-Shot Injection Molding
+13
Factory Size
3,000-5,000 ㎡
Employees
51-100
Certifications
ISO 9001
Product Equipment
20 types / 73 sets
Zhejiang, China
Premium Member 2 yrs
Stamping
Fabrication
Stamping
Machining
Structure
Cutting
Tube Modification
Turning
+9
Factory Size
3,000-5,000 ㎡
Employees
1-50
Certifications
ISO 9001
Product Equipment
-- / --
Jiangsu, China
Premium Member 2 yrs
Fabrication
Cutting
Welding or Bonding
Structure
Bending
NC Punching
Stamping
Stamping
+11
Factory Size
10,000-30,000 ㎡
Employees
51-100
Certifications
ISO 14001, ISO 45001, IATF16949
Product Equipment
47 types / 80 sets
Zhejiang, China
Premium Member 1 yrs
Casting
Sand Mold Casting
Machining
Mold Making
Assembly
CNC Milling & Milling
Others
Mechanical Assembly
+3
Factory Size
30,000+ ㎡
Employees
201-500
Certifications
IATF16949
Product Equipment
30 types / 49 sets
Shanghai, China
Premium Member 1 yrs
Machining
Swiss Machining
Turning
Others
Stamping
Assembly
Molding
Mechanical Assembly
+3
Factory Size
10,000-30,000 ㎡
Employees
201-500
Certifications
ISO 14001, ISO 13485, ISO 45001, ISO 9001
Product Equipment
4 types / 90 sets
Jiangsu, China
Premium Member 10 yrs
Bending
Welding or Bonding
Cutting
CNC Milling & Milling
Machining
Assembly
Fabrication
Turning
+5
Factory Size
3,000-5,000 ㎡
Employees
101-200
Certifications
ISO 14001, ISO 9001
Product Equipment
13 types / 19 sets
Zhejiang, China
Premium Member 2 yrs
Molding
Stamping
Assembly
Injection Molding
Stamping
Electronics Assembly
Mechanical Assembly
Electrical Products Assembly
Factory Size
3,000-5,000 ㎡
Employees
51-100
Certifications
--
Product Equipment
12 types / 25 sets
Jiangsu, China
Premium Member 1 yrs
Machining
Molding
Assembly
Mold Making
Surface Grinding
Gantry Milling
CNC Milling & Milling
Turning
+6
Factory Size
10,000-30,000 ㎡
Employees
101-200
Certifications
ISO 9001, ISO 14001, ISO 45001, ISO 9001
Product Equipment
23 types / 123 sets
Zhejiang, China
Premium Member 2 yrs
Machining
Fabrication
Fasteners & Hardware
Assembly
5 Axis Milling
Boring & Milling Machining
EDM
CNC Milling & Milling
+10
Factory Size
10,000-30,000 ㎡
Employees
101-200
Certifications
ISO 9001
Product Equipment
63 types / 63 sets
Jiangsu, China
Premium Member 1 yrs
Machining
Assembly
Mold Making
Molding
Fabrication
Injection Mold Making
CNC Milling & Milling
Turning
+8
Factory Size
5,000-10,000 ㎡
Employees
51-100
Certifications
IATF16949, ISO 9001
Product Equipment
50 types / 84 sets
Shanghai, China
Premium Member 2 yrs
Machining
Assembly
Stamping
Fabrication
CNC Milling & Milling
Turning
Bending
Welding or Bonding
+4
Factory Size
3,000-5,000 ㎡
Employees
1-50
Certifications
ISO 9001
Product Equipment
-- / --
Zhejiang, China
Premium Member 1 yrs
Fabrication
Casting
Machining
Assembly
Mold Making
Mechanical Assembly
Bending
Welding or Bonding
+5
Factory Size
10,000-30,000 ㎡
Employees
101-200
Certifications
ISO 9001, ISO 14001
Product Equipment
45 types / 57 sets
Jiangsu, China
Premium Member 1 yrs
Fabrication
Machining
Assembly
Welding or Bonding
Cutting
CNC Milling & Milling
Wire Electrical Discharge Machining
Others
+4
Factory Size
5,000-10,000 ㎡
Employees
51-100
Certifications
ISO 9001
Product Equipment
27 types / 66 sets
Shanghai, China
Premium Member 6 yrs
Assembly
Machining
Fabrication
Wire Electrical Discharge Machining
Gantry Milling
Turning
Milling & Turning
Tube Modification
+9
Factory Size
3,000-5,000 ㎡
Employees
1-50
Certifications
ISO 9001
Product Equipment
-- / --
Guangdong, China
Premium Member 1 yrs
Fabrication
Machining
Assembly
Bending
Welding or Bonding
Structure
Tube Modification
Boring & Milling Machining
+5
Factory Size
3,000-5,000 ㎡
Employees
1-50
Certifications
--
Product Equipment
7 types / 21 sets
Guangdong, China
Premium Member 2 yrs
Machining
Casting
Die Casting
CNC Milling & Milling
Turning
Stamping
Assembly
Extrusion
+8
Factory Size
30,000+ ㎡
Employees
101-200
Certifications
ISO 9001, IATF16949
Product Equipment
21 types / 226 sets
Beijing, China
Premium Member 4 yrs
Machining
Fabrication
Assembly
Stamping
Mold Making
5 Axis Milling
Gantry Milling
CNC Milling & Milling
+26
Factory Size
10,000-30,000 ㎡
Employees
51-100
Certifications
ISO 9001, GJB9001c-2017
Product Equipment
26 types / 86 sets
Jiangsu, China
Premium Member 1 yrs
Molding
Stamping
Assembly
Mold Making
Electronics Assembly
Mechanical Assembly
Electrical Products Assembly
Stamp Die Making
+6
Factory Size
30,000+ ㎡
Employees
201-500
Certifications
ISO 9001
Product Equipment
55 types / 167 sets
Jiangsu, China
Premium Member 4 yrs
Machining
5 Axis Milling
CNC Milling & Milling
Turning
Gantry Milling
Fabrication
Molding
Assembly
+9
Factory Size
3,000-5,000 ㎡
Employees
51-100
Certifications
ISO 9001, ISO 13485
Product Equipment
30 types / 82 sets
Jiangsu, China
Premium Member 1 yrs
Gantry Milling
CNC Milling & Milling
Turning
Milling & Turning
Machining
Casting
Assembly
Die Casting
+3
Factory Size
10,000-30,000 ㎡
Employees
101-200
Certifications
ISO 9001
Product Equipment
8 types / 111 sets
Guangdong, China
Premium Member 1 yrs
Molding
Mold Making
Finishing
Assembly
Injection Molding
Multi-Shot Injection Molding
Injection Mold Making
Other Plastic&Rubber Product Mold Making
+6
Factory Size
5,000-10,000 ㎡
Employees
101-200
Certifications
ISO 9001, ISO 14001, CCC
Product Equipment
25 types / 75 sets
Zhejiang, China
Premium Member 2 yrs
Mold Making
Molding
Machining
EDM
Injection Mold Making
CNC Milling & Milling
Injection Molding
Wire Electrical Discharge Machining
+6
Factory Size
10,000-30,000 ㎡
Employees
201-500
Certifications
--
Product Equipment
-- / --
Guangdong, China
Premium Member 2 yrs
Molding
Machining
Fabrication
Stamping
Assembly
Injection Molding
Multi-Shot Injection Molding
Other Injection Molding
+20
Factory Size
30,000+ ㎡
Employees
201-500
Certifications
ISO 9001, ISO 14001
Product Equipment
-- / --
Anhui, China
Premium Member 2 yrs
Machining
Casting
Assembly
Other Electronic Part
Molding
Die Casting
Electronics Assembly
Mechanical Assembly
+5
Factory Size
30,000+ ㎡
Employees
201-500
Certifications
IATF16949, ISO 9001
Product Equipment
29 types / 98 sets
Hunan, China
Premium Member 2 yrs
Fabrication
Finishing
Assembly
Machining
Bending
Welding or Bonding
NC Punching
Cutting
+8
Factory Size
30,000+ ㎡
Employees
201-500
Certifications
EN 15085, ISO 9001, ISO 3834
Product Equipment
207 types / 226 sets
Guangdong, China
Premium Member 3 yrs
Stamping
Machining
Assembly
Fasteners & Hardware
Fabrication
Stamping
Deep Draw
Progressive Die Stamping
+10
Factory Size
3,000-5,000 ㎡
Employees
51-100
Certifications
IATF16949, ISO 9001
Product Equipment
-- / --
Guangdong, China
Premium Member 2 yrs
Stamping
Fabrication
Machining
Assembly
Fine Blanking
Progressive Die Stamping
Deep Draw
Stamping
+8
Factory Size
1,000-3,000 ㎡
Employees
1-50
Certifications
--
Product Equipment
7 types / 15 sets
Guangdong, China
Premium Member 2 yrs
Machining
CNC Milling & Milling
5 Axis Milling
Gantry Milling
Turning
Swiss Machining
Milling & Turning
Casting
+10
Factory Size
5,000-10,000 ㎡
Employees
101-200
Certifications
ISO 9001
Product Equipment
24 types / 159 sets
Anhui, China
Premium Member 2 yrs
Fabrication
Finishing
Assembly
Plastic Spraying
Structure
Powder Coating
Electrical Products Assembly
NC Punching
+6
Factory Size
10,000-30,000 ㎡
Employees
101-200
Certifications
ISO 9001
Product Equipment
23 types / 81 sets
Guangdong, China
Premium Member 2 yrs
Machining
Stamping
Fabrication
Assembly
Stamping
Cutting
Deep Draw
Welding or Bonding
+4
Factory Size
30,000+ ㎡
Employees
101-200
Certifications
ISO 9001
Product Equipment
-- / --
Guangdong, China
Premium Member 2 yrs
Machining
Spring & Wire Forming
Pump & Valve & Fittings
Finishing
Stamping
Fabrication
Assembly
CNC Milling & Milling
+8
Factory Size
1,000-3,000 ㎡
Employees
1-50
Certifications
--
Product Equipment
12 types / 54 sets
Guangdong, China
Premium Member 2 yrs
Machining
Casting
Assembly
Boring & Milling Machining
CNC Milling & Milling
5 Axis Milling
Wire Electrical Discharge Machining
Surface Grinding
+5
Factory Size
3,000-5,000 ㎡
Employees
51-100
Certifications
--
Product Equipment
-- / --
Zhejiang, China
Premium Member 9 yrs
Bending
NC Punching
Stamping
Deep Draw
Progressive Die Stamping
Fine Blanking
Injection Molding
Electronics Assembly
+8
Factory Size
10,000-30,000 ㎡
Employees
1-50
Certifications
--
Product Equipment
28 types / 180 sets
Zhejiang, China
Premium Member 1 yrs
Molding
Assembly
Injection Molding
Machining
Electronics Assembly
Cable Assembly
Mechanical Assembly
Electrical Products Assembly
+4
Factory Size
5,000-10,000 ㎡
Employees
1-50
Certifications
--
Product Equipment
8 types / 8 sets
Zhejiang, China
Premium Member 1 yrs
Machining
Assembly
Fabrication
Stamping
Gantry Milling
CNC Milling & Milling
Electrical Products Assembly
Mechanical Assembly
+6
Factory Size
5,000-10,000 ㎡
Employees
51-100
Certifications
ISO 9001
Product Equipment
31 types / 31 sets
Jiangsu, China
Premium Member 1 yrs
Machining
Fabrication
Assembly
Gantry Milling
CNC Milling & Milling
Turning
Four-Axis Horizontal Machining Center
Surface Grinding
+8
Factory Size
1,000-3,000 ㎡
Employees
1-50
Certifications
--
Product Equipment
-- / --
Zhejiang, China
Premium Member 1 yrs
Machining
Fabrication
Assembly
Specai-Purpose Machine Forming
Turning
5 Axis Milling
Boring & Milling Machining
Gantry Milling
+20
Factory Size
1,000-3,000 ㎡
Employees
1-50
Certifications
ISO 9001, ISO 45001, ISO 14001
Product Equipment
25 types / 49 sets
Shanghai, China
Premium Member 1 yrs
Fabrication
Stamping
Assembly
Progressive Die Stamping
Fine Blanking
Stamping
Bending
Cutting
+2
Factory Size
1,000-3,000 ㎡
Employees
1-50
Certifications
ISO 9001
Product Equipment
23 types / 23 sets
Jiangsu, China
Premium Member 1 yrs
Fabrication
Assembly
Structure
Electronics Assembly
Welding or Bonding
Cable Assembly
Others
Bending
+4
Factory Size
3,000-5,000 ㎡
Employees
1-50
Certifications
ISO 9001
Product Equipment
12 types / 62 sets
Jiangsu, China
Premium Member 6 yrs
Fabrication
Assembly
Finishing
Bending
Welding or Bonding
Structure
Cutting
Spray Painting
+7
Factory Size
5,000-10,000 ㎡
Employees
101-200
Certifications
ISO 9001
Product Equipment
21 types / 26 sets
Zhejiang, China
Premium Member 1 yrs
NC Punching
Stamping
Welding or Bonding
Fabrication
Bending
Cutting
Assembly
Tube Modification
+3
Factory Size
10,000-30,000 ㎡
Employees
101-200
Certifications
--
Product Equipment
21 types / 156 sets
Zhejiang, China
Premium Member 1 yrs
Fabrication
Assembly
Cutting
Tube Modification
NC Punching
Bending
Welding or Bonding
Mechanical Assembly
+1
Factory Size
1,000-3,000 ㎡
Employees
1-50
Certifications
--
Product Equipment
23 types / 35 sets
Hubei, China
Premium Member 2 yrs
Machining
CNC Milling & Milling
Boring & Milling Machining
5 Axis Milling
Gantry Milling
Turning
Others
Nuts
+13
Factory Size
10,000-30,000 ㎡
Employees
51-100
Certifications
IATF16949, ISO 9001
Product Equipment
-- / --
Jiangsu, China
Premium Member 1 yrs
Machining
Assembly
Fabrication
Welding or Bonding
Bending
Cutting
CNC Milling & Milling
Turning
+2
Factory Size
5,000-10,000 ㎡
Employees
1-50
Certifications
ISO 9001
Product Equipment
16 types / 34 sets
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Get Multiple Factory Quotes for Your Parts in 24 Hours
Connect with 800,000+ listed factories in Asia. Receive multiple quotes for your parts and manage production with speed and confidence.
Mechanical Assembly Companies in China
Assembling mechanical parts and components-metal, plastic, or composite-into a functional unit, subassembly, or finished product is a specialist assembly service that Chinese factories have long provided.
The mechanical assembly companies in China offer unbeatable cost-competitiveness, along with integrated supply chains, scalable production, skilled workforces, advanced equipment, and impressive lead times.
Services range from sub-assembly, such as gearboxes and valve units, to final assembly of appliances, precision assembly requiring high accuracy, and electromechanical assembly.
Chinese suppliers are the obvious starting place for sourcing mechanical assembly companies but natural concerns over quality control, logistics, and IP protection may arise. Our platform solves that sourcing issue with a large database of trusted mechanical assembly companies capable of meeting your project requirements.
We vet and verify every supplier before they become a Haizol member. Our fees are earned from the provider rather than from you, so you get to connect with the best verified mechanical assembly companies in China and negotiate with them directly.
From a single FRQ, we’ll put you in touch with multiple ISO-certified factories ready to fulfil your order within 24 hours.
Frequently Asked Questions
What Lead Times Should I Expect for Assembly Projects?
Simple sub-assemblies are usually finished within 1–2 weeks once parts are ready, while complex builds take 3–5 weeks. Each quote includes clear production and shipping timelines.
Can Haizol’s Assembly Partners Meet International Quality Standards?
Many assembly partners are verified and ISO-certified, following strict in-line inspection, testing, and documentation standards for export-quality results.
How Is Communication and Project Tracking Handled?
All communication-drawings, approvals, and updates-runs through our bilingual dashboard, where you can chat with suppliers, review samples, and track progress in real time.
How Can I Protect My Product Design and Assembly Instructions?
Uploaded files are covered by Haizol’s NDA and NNN agreements. Suppliers must digitally sign before access, and every file interaction is logged for complete IP security.
