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Large CNC machining

Kesu has more than 100 advanced large-scale CNC machining centers, the professional technical team has rich experience in the processing of large deep cavity casings, automobile engines, automobile wheels, robot accessories, aerospace and other parts.

Large CNC machining is a subdivision of CNC machining designed to manufacture large diameter products. As a CNC machining process, it has many advantages such as high precision and accuracy. This is the reason why it is well suited for different industrial sectors. However, large CNC machining is not that simple. It is necessary to understand the timing, manner and other things of the manufacturing process.


Large CNC Machining

Application of large CNC machining

Large CNC machining is a type of CNC machining for the manufacture of large machine parts. Many industries require large CNC machining to make parts for their products, tools or machines. However, the number of industries that use the process is limited due to its size. The following are common industries that use the manufacturing process.

Automotive 

The automotive industry uses small CNC machining to build prototype vehicles. However, in real-time production, they tend to use large CNC machining to make parts for engines, shafts, and other vehicle components. 

Aerospace 

The aerospace industry relies on large CNC machining because of its high precision and accuracy. This is the better approach as it provides on-demand replacement and upgrade parts for machines.


Large CNC Machining

Energy and power generation 

To generate energy efficiently, large size parts are required. Manufacturing these parts requires attributes beyond CNC machining. Due to the size of the product, large CNC machining is the concept of the process. Examples of such products are power generation engines and turbine housings.

Mining 

Mining equipment is used in high volume and intensity. This is due to the stresses associated with mining. Therefore, large diameter machining is the right process for manufacturing parts such as rack and pinion, rocker arms and gearboxes.

Oil and Gas 

Large-scale CNC machining is essential for the manufacture of drilling stations for most equipment. Examples of such parts are connecting rods, mud/frac pumps and gearboxes.


Why Our Customers Choose Kesu Group?

Our most representative capability of large CNC machining should be GMU-630. This giant 5-axis machine center has a remarkable ability for large parts CNC machining. The max. The stroke of the X, Y, Z axis are  700mm,1180mm and 550mm. The Positional Precision of X,Y,Z axis are 0.008mm, 0.008mm and 0.008mm. And the Re-positional Precision of X,Y,Z axis are 0.004mm, 0.004mm and 0.004mm.This giant five-axis simultaneous machine center GMU-630 is suited for machining complex multi-surface parts in the area of mold, automotive, aerospace and mechanics. GMU-630 has a great advantage on mold, as it was designed for mold at the first beginning.  This giant 5-axis machine center is equipped with the self-designed cradle turntable of AFMING, and adapts high-end mechanical drive technology GTRT. With the help of mandrel cooling main spindle HSK-A63, GMU-630 can realize stronger torque output, higher stiffness and stability, extraordinary swivel and machine accuracy. 


Large CNC Machining


GMU-630 Specifications

Brand

AFMING

Control System

SIMENS-840D

Axis

5-axis

Simultaneous Axes

5 simultaneous axes

Machine Material

Hard Metal, Alloy, Steel Structure

Tool Magzine

24Tools

Magzine Type

Disc Magzine

Max Afford Weight

500kg

Main Spindle Speed

15000rpm HSK-A63

Positional Precision (X/Y/Z)

X:0.008mm,Y:0.008mm,Z:0.008mm

A/C 

(12/12)ARCSEC

Re-positional Precision

X:0.004mm,Y:0.004mm,Z:0.004mm

A/C 

(6/6)ARCSEC

Platform Size

630mm

X/Y/Z Stroke

X:700mm,Y:1180mm,Z:550mm

A/C Stroke

±120/360°

Size of Machine

3400x3000x3700mm


Making Kesu Group the first choice for large CNC machining

No matter how big your design is, you can use our instant quote and get a quote in minutes. In addition, we provide you with a design manufacturing analysis that shows you if your design is feasible. We also have (ISO 9001:2015) certification, which shows how much we offer to meet our customers' needs. You can also enjoy these benefits at a lower cost, with an average savings of 30%. Best of all, we have knowledgeable and qualified engineers who can answer your questions and provide you with advice.


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AVAILABLE MATERIAL

Aluminium
Brass
Bronze
Copper
Magnesium
Stainless Steel
Titanium
Tool Steel
Zinc
ABS
Acetal
Ceramics
Delrin
HDPE
Nylon
PC
PE
PEEK
PMMA
PP
PTFE
SLS Nylon
Aluminium
Aluminium

Aluminum is one of the most commonly used metals in machining, as it has excellent strength-to-weight ratio, low cost, and recyclability.


Alloys:

AL5052-T651, AL6061-T651, AL 7075-T651, AL6082-T651...


Finish Options:

A.Polishing, B.Grinding, C.Brushing, D.Sandblasting, E.Painting, F.Powder Painting, G.Anodizing , H.Hard anodized, I.Teflon Coating, J.Laser Marking, K.Silk Screen, L.Transfer Printing.

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Brass
Brass

Brass is a free machining metal, and it is commonly used for a variety of parts including gears, lock components, pipe fittings, and ornamental applications.


Alloy:

Brass-H59, Brass-H62, Brass-H59, Brass-H62, Brass-HA177-2, Brass-HMn58-2, Brass-HPb59-1, Brass-HSn62-1...


Finish Options:

A.Polishing, B.Grinding, C.Brushing, D.Laser Marking, E.Silk Screen, F.Transfer Printing.

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Bronze
Bronze

Bronze is a high strength alloy with good wear and corrosion resistance due to its tin, iron, and zinc content. Normally, the tin content is range from 3%-14%.


Alloy:

QSn-6-6-3


Finish Options:

A.Polishing, B.Grinding, C.Brushing, D.Laser Marking, E.Silk Screen, F.Transfer Printing.

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Copper
Copper

Copper has excelent electricity and thermal conductivity, which is widely used in electrical applications.


Alloy:

T1、T2、T3、TU1、TU2b


Finish Options:

A.Polishing, B.Grinding, C.Brushing, D.Laser Marking, E.Silk Screen, F.Transfer Printing.

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Magnesium
Magnesium

Magnesium Alloy is a high strength alloy with low density, and is widely used in aviation, aerospace and transportation etc.


Alloys:

AZ31, AZ41, AZ61...


Finish Options:

A.Polishing, B.Brushing, C.Sandblasting, D. Micro Arc Oxidation

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Stainless Steel
Stainless Steel

Stainless steel is a high strength alloy with high hardness and great resistance to corrsion and rust due to its chrome and carbon content.


Alloys:

201, 303, 304, 316, 410, 420, 17-4PH...


Finish Options:

A.Polishing, B.Grinding , C.Brushing, D.Sandblasting, E.Painting, F.Powder Painting, G.Passivation, H.Zinc Plating, I.Black & zinc, J.Teflon, K.Titanium Coating , L.Laser Marking , M.Silk Screen , N.Transfer Printing .

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Titanium
Titanium

Titanium Alloy is a high strength alloy with great resistance to corrosion and thermal, and it's widely used in the engine components, turbine blades and medical equipment.


Alloys:

Grade 1, Grade 2, Grade 3, Grade 4, Grade 5


Finish Options:

A.Polishing, B.Grinding, C.Brushing, D.Sandblasting, E.Laser Marking, F.Silk Screen, G.Transfer Printing.

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Tool Steel
Tool Steel

The tool steel has high hardness, strength, wear resistance, sufficient toughness, and other process properties.


Alloys:

A2, D2, D3...


Finish Options:

A.Polishing, B.Grinding, C.Brushing, D.Sandblasting, E.Painting, F.Powder Painting, H.Hard anodized, I.Passivation, J.Zinc Plating, K.Electroless Nickle Plating, L.Chrome Plating, M.Blacken/ Black Oxide, N.Black & zinc, O.Teflon, P.Titanium Coating, Q.PLC Coating, R.Laser Marking, S.Silk Screen, T.Transfer Printing .

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Zinc
Zinc

Zinc Alloy is low melting point alloy with great fluidity, and easy for welding, brazing and reform processing, and it is widely used in the casting industry.


Alloys:

Z13001, Z15001, Z19001 ...


Finish Options:

A. Polishing, B.Grinding, C.Sandblasting, D. Nickle Plating, E.Painting

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ABS
ABS

ABS is a low-cost plastic with good comprehensive performance, and widely used in machinery, electrical, automobile and aircraft.


Available Color: Natural, Black


Available Finish: Painting

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Acetal
Acetal

Acetal is the raw material of POM.


Available Color: White, Black

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Ceramics
Ceramics

Ceramics is high brittleness material with high melting point, high hardness, high strength, good wear resistance and great oxidation resistance, as well as good electrical insulation.


Available Color: White

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Delrin
Delrin

Delrin is a POM material, which belong to the Dupont Company. Delrin has low-friction, high-stiffness, and a relatively high toughness and minimal elongation, as well as excellent dimensional accuracy.


Available Color: White, Black

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HDPE
HDPE

High-density polyethylene (HDPE) has great resistance to acid, alkali and organic solvent, as well as excelent electrical insulation. It's widely used in plugs and seals.


Available Color: Black, White

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Nylon
Nylon

Nylon is a popular plastic which has great resistance to friction and chemical wear, as well as great electrical insulation.


Available Nylon: PA6, PA66


Available Color: White, black or others.

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PC
PC

Polycarbonate (PC), is heat-resistant, impact-resistant, flame-retardant, and one of the most common plastics used in manufacturing.


Available Color: Clear, black, glossy

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PE
PE

Polyethene(PE), has great resistance to acid and alkali, and good electrical insulation. It's widely used in plastic injection and machining.


Available Color: Black, white

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PEEK
PEEK

Usually, PEEK is used to machine high precision plastic parts. It has great resistant to moisture, wear, chemicals, high temperature, high electricity, sunshine etc.


Available PEEK: German Imported PEEK, Japan Imported PEEK


Available Color: Opaque beige

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PMMA
PMMA

Acrylic or PMMA, is a scratch-resistant plastic material, often used for tanks, panels, and optical applications.


Available Color: Optically clear, opaque

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PP
PP

Polypropylene (PP) resists most solvents and chemicals, which makes it a wonderful material to manufacture laboratory equipment and containers for a variety of applications. PP also offers good fatigue strength.


Colors: White (semi-clear or opaque)

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PTFE
PTFE

Commonly known as Teflon, PTFE resists high temperatures and chemicals/solvents excellently in and is also a great insulator. It is also a very slippery plastic, which makes it a good material for low-friction applications such as bearings.


Available Color: Black, white (opaque)

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AVAILABLE FINISH

Micro Arc Oxidation
Micro Arc Oxidation

Applicable Material

Aluminium, Magnesium, Titanium.

Hard Anodized
Hard Anodized

Applicable Material

Aluminium

Anodizing
Anodizing

Applicable Material

Aluminium

Zinc Plating
Zinc Plating

Applicable Material

Steel, Stainless Steel, Brass, Bronze

Titanium Coating
Titanium Coating

Applicable Material

Stainless Steel

Nickle Plating
Nickle Plating

Applicable Material

Aluminium, Steel, Stainless Steel,Brass, Bronze, Copper

Chrome Plating
Chrome Plating

Applicable Material

Aluminium, Steel, Stainless Steel,Brass, Bronze, Copper

Black & Zinc
Black & Zinc

Applicable Material

Steel, Stainless Steel, Brass, Bronze

Teflon Coating
Teflon Coating

Applicable Material

Aluminium, Steel, Stainless Steel

Powder Painting
Powder Painting

Applicable Material

Aluminium, Steel, Stainless Steel, ABS

Painting
Painting

Applicable Material

Aluminium, Steel, Stainless Steel, ABS

Silk Screen
Silk Screen

Applicable Material

Aluminium, Steel, Stainless Steel, Brass, Bronze, Copper, Titanium, Magnesium, ABS, HDPE, Nylon, PC, POM, PMMA, PTFE

Sandblasting
Sandblasting

Applicable Material

Aluminium, Steel, Stainless Steel,Brass, Bronze, Copper, Titanium, Magnesium, ABS, HDPE, Nylon, PC, POM, PMMA, PTFE

Polishing
Polishing

Applicable Material

Aluminium, Stainless Steel, Brass

Passivation
Passivation

Applicable Material

Steel, Stainless Steel, Brass

Laser Marking
Laser Marking

Applicable Material

Aluminium, Steel, Stainless Steel,Brass, Bronze, Copper, Titanium, Magnesium, ABS, HDPE, Nylon, PC, POM, PMMA, PTFE

Transfer Printing
Transfer Printing

Applicable Material

Stainless Steel, Metal with Coating, ABS, PE, PP

Grinding
Grinding

Applicable Material

Aluminium, Stainless Steel, Brass

DLC Coating
DLC Coating

Applicable Material

Steel

Brushing
Brushing

Applicable Material

Aluminium, Stainless Steel, Brass

Blacken/ Black Oxide
Blacken/ Black Oxide

Applicable Material

Steel, Stainless Steel

Regular Production Standard of Tolerance
Metal Parts
Tolerance for Metal Parts
ISO 2768-F
Table 1 - Linear Dimensions
Permissible deviations in mm for ranges in nominal lengthsTolerance Class Designation (Description)
f (fine)
0.5 up to 3±0.05
over 3 up to 6±0.05
over 6 up to 30±0.1
over 30 up to 120±0.15
over 120 up to 400±0.2
over 400 up to 1000±0.3
over 1000 up to 2000±0.5
over 2000 up to 4000


For nominal sizes below 0.5 mm, the deviations shall be indicated adjacent to the relevant nominal size(s).
Plastic Parts
Tolerance for Plastic Parts
ISO 2768-M
Table 1 - Linear Dimensions
Permissible deviations in mm for ranges in nominal lengthsTolerance Class Designation (Description)
m (medium)
0.5 up to 3±0.1
over 3 up to 6±0.2
over 6 up to 30±0.3
over 30 up to 120±0.5
over 120 up to 400±0.8
over 400 up to 1000±1.2
over 1000 up to 2000±2.0
over 2000 up to 4000


For nominal sizes below 0.5 mm, the deviations shall be indicated adjacent to the relevant nominal size(s).
Process

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