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Multi-Axis Mastery for Your Most Demanding Parts.

  • 3-axis, 4-axis, and 5-axis machining to handle both simple and complex parts.
  • Achieve tolerances as low as ±0.01mm.
  • Provide comprehensive surface finishing processes.
  • Efficiently handle single-piece and batch orders.
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Precision CNC Milling Services

Our facility utilizes CNC milling technology to deliver custom prototypes in as fast as 1 day. Equipped with 3-axis, 4-axis, and 5-axis CNC milling machines, we manufacture high-precision machined parts from a wide selection of materials. Leveraging advanced multi-axis CNC machining centers, we transform your 3D models into complex components with tight tolerances, excellent surface finishes, and repeatable quality. This makes our service the ideal choice for prototyping, functional parts, and low-to-mid volume production.

OUR CNC MILLING CAPABILITIES

3-Axis, 4-Axis, and 5-Axis Machining

3-axis CNC milling machine

Meets most standard part requirements with excellent cost performance.

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4-axis CNC milling machine

It adds workpiece rotation, enabling cylindrical or helical groove machining. More efficient than 3-axis, it is suitable for longer parts requiring multisided machining.

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5-axis CNC milling machine

It integrates dual rotary axes, enabling simultaneous precision machining of multiangle and complex curved surfaces, making it suitable for complex parts that are highprecision, multifeatured, and difficult to reposition in multiple setups.

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Why Choose Pression for CNC Milling?

  • Strategic Location in Guangzhou:We are situated in Guangzhou, the heart of China's manufacturing hub. Here, material suppliers, mature supply chains, mold makers, testing labs, and logistics centers form a tight geographic cluster. This integration reduces overall project time and costs by 20–40%.
  • Expert-Led Project Management:Your order is managed from start to shipment by our seasoned pre-sales engineers—not just an English-proficient salesperson. This direct expert involvement minimizes communication barriers and costs, ensuring the most efficient and effective collaboration for you.
  • Holistic Attention to Critical Details:Our experience shows that success requires more than just producing parts to precise dimensions. We proactively address vital details often overlooked, such as ensuring materials meet the environmental regulations of your region and selecting optimal packaging to prevent shipping damage.
  • Design for Manufacturability (DFM) Analysis:We employ DFM analysis to assess manufacturability, optimize tolerances, select suitable materials, and identify potential weaknesses. This process allows us to reduce costs while fully preserving the intended functionality of your original design.

Machining Equipment

Equipment NameEquipment ModelMachining RangeAccuracy
5-Axis Machining Center TC-U450Max.X: 500mm, Y: 700mm, Z: 400mm±0.01mm
5-Axis Machining Center KLS966L3Max.X: 900mm, Y: 600mm, Z: 450mm±0.01mm
3-Axis Machining CenterKLS850L3Max.X: 800mm, Y: 500mm, Z: 400mm±0.01mm
3-Axis Machining CenterKLS1380L8Max.X: 1300mm, Y: 800mm, Z: 450mm±0.01mm
3-Axis Machining CenterKLS966L5Max.X: 900mm, Y: 600mm, Z: 500mm±0.01mm
4-Axis Machining CenterT6Max.X: 600mm, Y: 500mm, Z: 400mm±0.01mm
4-Axis Machining CenterKLS850L3Max.X: 800mm, Y: 500mm, Z: 400mm±0.01mm

Materials Suitable for Machining

We offer an extensive selection of custom machining materials to meet both the design and functional requirements of prototypes, including both plastics and metals.

Aluminum
Stainless Steel
Alloy Steel
Tool Steel
Brass
Titanium
POM (Delrin/Acetal)
PEEK
Nylon
PEI
PMMA
ABS
  • Aluminum: Known for its excellent strength-to-weight ratio, cost-effectiveness, and recyclability, aluminum is a top choice across numerous industries.
  • Available Alloys: 6061-T6, 7075-T6,1050, 5052, 6063, 5083
  • Surface Finishing Options: Anodizing/Hard Anodizing/Powder Coating/Liquid Painting/Electroless Nickel Plating/Passivation/Sand Blasting/Polishing
  • Stainless Steel: With excellent corrosion resistance and ductility, stainless steel is perfect for outdoor applications and easily formed into complex shapes.
  • Available Alloys: SS304 316 316L 310S 430 420 440C 17-4PH
  • Finishing Options: As Machined, Bead Blasting, Polishing, Decorative Chrome Plating, Powder Coating, Nickel Plating, Gold Plating
  • Alloy Steel: Engineered by combining steel with elements such as manganese, nickel, and chromium, alloy steel offers enhanced strength, hardness, corrosion resistance, and longevity for specialized applications.
  • Available Alloys: AISI 1215, 4140, AISI 4340, AISI 8620, AISI 4130
  • Finishing Options: Polishing, Plating, Painting, Powder Coating, and more
  • Tool Steel: High hardness, wear resistance & toughness for cutting tools, dies, and molds under repeated stress/impact.
  • Available Alloys: A2, D2, O1, S7, M2 Tool Steel
  • Finishing Options: Bead or Sand Blasting, Polishing, Plating, Painting, Powder Coating, Heat Treatment, and more
  • Brass: Brass, a copper-zinc alloy with over 20% zinc content, is one of the most widely used materials in CNC machining due to its excellent machinability and versatility.
  • Available Alloys: C360, C260
  • Finishing Options: Nickel Plating, Bead Blasting, Gold Plating, Silver Plating
  • Titanium: A strong, lightweight metal with excellent corrosion resistance, ideal for aerospace, automotive, and medical applications.Available
  • Alloys: TC4(Ti-6Al-4V), TA1, TA2
  • POM (Delrin/Acetal): Offers excellent stiffness, low friction, strong wear resistance, and good moisture resistance, making it easy to machine and ideal for precision parts.
  • Available Colors: White, Black, Brown
  • Available Grades: POM-C, Delrin 100, Food-Grade POM
  • PEEK: Short for Polyether Ether Ketone, PEEK is a high-performance engineering plastic known for its outstanding mechanical strength, chemical resistance, and thermal stability.
  • Available Color: Beige, non-transparent
  • Available Grades: Unfilled PEEK, 30% Glass-Fiber Reinforced PEEK, 30% Carbon-Fiber Reinforced PEEK, Bearing Grade PEEK
  • Nylon: Nylon is a tough, flexible, and long-lasting material widely used in textiles and industrial components. Its excellent resistance to wear, chemicals, and moisture makes it ideal for applications like gears, bearings, and automotive parts.
  • Available Color: White, Black,
  • Available Grades: PA6, PA66, PA 12
  • PEI: PEI is a high-performance thermoplastic offering superior mechanical strength, thermal stability, electrical insulation, and chemical resistance.
  • Available Color: Amber or brownish hue
  • Available Grades: Unfilled PEI, Glass-Filled PEI, Carbon-Filled PEI, Ultem PEI
  • PMMA: Commonly referred to as “acrylic” or “plexiglass,” PMMA is a lightweight, impact-resistant material often used as a glass alternative in products like skylights, signage, displays, and optical lenses.
  • Available Color: Transparent
  • Available Grades: Extruded PMMA, Cast PMMA, Impact-Modified PMMA, UV-Stabilized PMMA, Heat-Resistant PMMA
  • ABS: A tough, rigid, and lightweight thermoplastic widely used in automotive parts, electronics, and consumer goods, offering excellent impact, chemical, and heat resistance.

Surface Treatment

Appropriate surface treatment is the crucial final step in the manufacturing process, transforming a machined component into a high-performance, durable, and market-ready product. Our comprehensive suite of surface finishing services is designed to protect your parts from corrosion and wear while delivering the exact aesthetic you envision. Discover our capabilities to find the perfect solution tailored to your application.

Electrochemical treatment

As Machined

Parts are machined and deburred, sharp edges are chamfered. Visible machining marks, light surface scratches.

Polishing (Ra 0.8μm / Ra 32μin or better)

Polishing involves producing a smooth, glossy surface by mechanical rubbing or through the use of chemical treatments.

Bead Blasting

Parts are bead blasted with glass beads which results in smooth, matte appearance and reduced machining marks.

Bead blasted + Anodizing type II

Parts are bead blasted to a #120 grit finish prior to receiving Type II anodizing—perfect for enhancing aluminum's corrosion resistance and improving its visual appearance.

Bead blasted + Anodized type III (Hardcoat)

Parts are bead blasted to #120 grit before undergoing Type III anodizing. Type III (Hard Anodizing) provides a thicker, wear-resistant coating in addition to Type II’s corrosion protection, making it ideal for demanding functional uses.

Black Oxide

Black oxide is a type of conversion coating applied to steel parts to enhance corrosion resistance and reduce surface reflectivity.

Mirror Polishing

A surface finishing process that uses a series of increasingly fine abrasive tools and compounds to produce a highly reflective, mirror-like surface finish.

Powder Coating

This finish involves coating the parts with powdered paint and curing them in an oven, creating a tougher, more wear- and corrosion-resistant surface compared to conventional painting techniques.

Plating

Includes Nickel Plating, Silver Plating, Gold Plating, Zinc Plating, Chrome Plating, Tin Plating, and more—perfect for enhancing corrosion resistance, appearance, solderability, and electrical conductivity.

Heat Treatment

We employ precise thermal processes such as quenching, tempering, and case hardening to fundamentally enhance the performance of your metal components. This controlled transformation optimizes material properties, delivering increased hardness, superior strength, and enhanced wear resistance for demanding applications, ultimately leading to a longer component lifespan.

Process NamePrimary PurposeTypical Applications
QuenchingSignificantly increases hardness, strength, and wear resistance.Components requiring high hardness and wear resistance, such as bearings, gears, molds, and cutting tools.
Quenching and TemperingAchieves excellent balanced mechanical properties (high strength combined with good toughness).Critical structural parts under complex loads, such as shafts, connecting rods, and bolts.
CarburizingIncreases surface hardness and wear resistance of low-carbon steel workpieces.Gears, piston pins, drive shafts, etc.
NitridingEnhances surface hardness, wear resistance, fatigue strength, and galling resistance.Precision machine tool spindles, high-speed engine crankshafts, injection molding machine screws, etc.
CarbonitridingCombines the characteristics of both carburizing and nitriding.Various high-demand structural components, such as automotive and agricultural machinery parts.
Solution Treatment and AgingIncreases strength and hardness of non-ferrous metals like aluminum alloys and stainless steel.Aluminum alloy aerospace components, stainless steel structural parts.
Vacuum Heat TreatmentPrevents oxidation and decarburization during heating, achieving a bright finish.High-grade tool steels, mold steels, and precision aerospace components.

CNC Machining FAQs

We deliver more than just qualified parts; we deliver reliable solutions with the highest standards of precision,
quality, and on-time delivery. We understand the critical role our components play in the success of your products.

What is the maximum/minimum part size you can handle?

Maximum size:1500×800×500 mm(X×Y×Z). Minimum feature:We can machine small holes down to 0.2mm in diameter,depending on final drawing requirements.The smallest tool diameter we typically use is 1mm. Special needs:If your part exceeds these dimensions,we have partner suppliers who can provide a solution.

The key advantages of 5-axis machining include:

  • Complete complex features in one setup:Reduces positioning errors and improves accuracy.
  • Machine deep cavities and undercuts:Handles geometries impossible for 3-axis machining.
  • Improve surface finish:Maintains the optimal cutting angle of the tool.
  • Reduce the need for dedicated fixtures.

Our standard accuracy capabilities are:

  • Standard Tolerance:±0.05mm(for most features).
  • Precision Tolerance:±0.02mm(under controlled environmental conditions).
  • High-Precision Tolerance:±0.01mm(requires specific materials and processes).
  • Position/Concentricity:Within 0.02mm(achieved using 5-axis equipment).

We employ multiple strategies to control deformation in thin-walled parts:

  • Process Strategy:Multi-stage machining(roughing,semi-finishing,finishing).
  • Stress Relief:Performing artificial aging during the machining process.
  • Special Fixtures:Designing anti-deformation support fixtures.
  • Cutting Parameter Optimization:Using small depths of cut,high spindle speeds,and high feed rates.
  • Deformation Compensation:Pre-calculating deformation based on material properties and compensating in the machining path.

Cost composition analysis:

FactorCost ImpactOptimization Suggestion
Material15-40%Select appropriate material grade.
Machining Time30-60%Optimize design to reduce machining time.
Tolerance Requirements±20-50%Loosen non-critical tolerances.
Surface Finish±10-30%Specify based on functional needs.
Post-Processing5-25%Choose based on actual requirements.
Order QuantityLower unit cost for larger volumesConsider batch production.

Comparison of thread machining methods:

MethodPrecisionStrengthCostSuitable Applications
Tapping with TapsIT7-IT8MediumLowM1-M20,through-holes or shallow blind holes.
Thread MillingIT6-IT7HighMedium-HighLarge diameters,hard materials,blind holes.
Thread Forming(Forming Taps)IT7HighMediumDuctile materials(aluminum,copper).
Thread TurningIT6HighMediumParts made on mill-turn centers.

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