10

Instant Quotes

1 Day

Lead Time

0pc

MOQ 

0.005 mm

Tolerances

Custom Machining Works

Since its inception in 2008, GR Precision Mold has evolved from a modest builder of simple plastic injection molds to a leading name in the industry, capable of crafting highly intricate parts. In the span of 18 years, what began as a 500 square meter workshop has expanded into a 6,500 square meter state-of-the-art production facility, operating around the clock with over 120 skilled professionals.

Today, GR Precision Mold doesn’t just build injection mold tools; we offer our extensive capabilities for contract manufacturing. Our clients benefit from a wide range of services, including CNC milling, EDM wire cutting, CNC turning, lathing, and a variety of finishing techniques like drilling, grinding, polishing, and blasting.

Partnering with us means access to our advanced machining services, tailored to meet your unique custom machining needs. Whether it’s a complex prototype or high-volume production, our team is equipped to deliver precision and quality, consistently.


From CNC Prototyping to Production

  CNC machining is a computerized and versatile manufacturing process ideal for rapid prototyping and on demand production. Here are the custom CNC services available at the GR Precision Mold .

CNC Machining Tolerances and Standards


With precision CNC machining services, GR Precision Mold is your ideal partner to create precision machined prototypes and parts. Our standard CNC machining tolerances for metals is ISO 2768-f and for plastics is ISO 2768-m. We can also achieve special tolerances as long as you indicate your requirements on your drawing.

 
Standards
CNC Milling
CNC Turning
Maximum Part Size
4000×1500×600 mm  
157.5×59.1×23.6 in.
200×500 mm
7.9×19.7 in.

Minimum Part Size

4×4 mm
0.1×0.1 in.
2×2 mm
0.079×0.079 in.
Minimum Feature
Size
Φ 0.50 mm
Φ 0.00197 in.
Φ 0.50 mm
Φ 0.00197 in.

Standard Tolerances

Metals: ISO 2768-f
Plastics: ISO 2768-m
Metals: ISO 2768-f
Plastics: ISO 2768-m

Linear Dimension

+/- 0.025 mm
+/- 0.001 in.
+/- 0.025 mm
+/- 0.001 in.
Hole Diameters
(Not Reamed)
+/- 0.025 mm
+/- 0.001 in.
+/- 0.025 mm
+/- 0.001 in.
Shaft Diameters
+/- 0.025 mm
+/- 0.001 in.
+/- 0.025 mm
+/- 0.001 in.
Edge Condition
Sharp corner will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing.
Threads and Tapped Holes
Diameter: Φ 1.5-5 mm, depth: 3×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter
Diameter: Φ 1.5-5 mm, depth: 3×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter
GR Precision Mold can produce threads of any specification and size required by our customers.
Text
Minimum width of 0.5 mm, depth of 0.1 mm
GR Precision Mold can use CNC engraving or laser carving to create standard text based on customers’ requirements.
GR Precision Mold can use laser marking to create standard text for CNC turned parts.
Lead Time
5 business days

5 business days


Materials for Custom CNC Machining Parts


A number of materials can be used in CNC machines, giving you various of options to complete rapid prototyping to production runs of custom complex parts. For your manufacturing needs, we provide instant quotations of 100+ metals and plastics, and even you can compare prices for different machining materials.

 
custom-aluminum-machined-parts

Aluminum

Aluminum boasts impressive ductility, which simplifies the machining process. This metal offers an excellent strength-to-weight ratio and comes in various forms to suit diverse applications.

Price: $

Lead Time: < 10 days

Tolerances: ±0.125mm (±0.005″)

Max part size: 1000 x 320 x 500 cm


custom-copper-machined-parts

Copper

Copper showcases exceptional thermal and electrical conductivity, along with great plasticity. It’s also notably ductile, resists corrosion well, and is easily weldable.

Price: $$,Euro

Lead Time: < 10 days

Wall Thickness: 0.75 mm

Tolerances: ±0.125mm (±0.005″)

Max part size: 1000 x 400 x 500 cm

 

 
machining works for brass parts

Brass

Brass is favored for many uses due to its low friction, superior electrical conductivity, and distinctive golden hue.

Price: $$

Lead Time: < 10 days

Wall Thickness: 0.75 mm

Tolerances: ±0.125mm (±0.005″)

Max part size: 1000 x 400 x 500 cm

 

machining workds for plastic injection mold

Stainless Steel

Stainless steel, a low carbon steel variant, possesses numerous desirable characteristics for industrial use, typically comprising at least 10% chromium by weight

Price: $,Euro

Lead Time: < 10 days

Wall Thickness: 0.75 mm

Tolerances: ±0.125mm (±0.005″)

Max part size: 1500 x 800 x 1000 cm

 

 

 
high precision Titanium parts

Titanium

Titanium is an optimal metal for rigorous demands due to its exceptional resistance to corrosion, chemicals, and extreme temperatures, coupled with an outstanding strength-to-weight ratio.

Price: $,Euro

Lead Time: < 10 days

Wall Thickness: 0.75 mm

Tolerances: ±0.125mm (±0.005″)

Max part size: 1000 x 400 x 500 cm

 

 
machining workds for plastic parts

Plastics

Plastics are a favored choice for CNC machining, offering a vast selection, cost-effectiveness, and reduced machining duration. Our CNC machining services encompass a comprehensive range of standard plastics.

 
POMPEEKHDPEPET
NylonPTFEPVCPP
ABSPCPMMA
 

Surface Finishes for CNC Machining

During CNC machining, tool marks are typically left on a block’s surface as it is shaped to specifications. For parts without as-machined appearances, choose a surface finish for customization. GRP provides various standard surface finishes to enhance both function and aesthetics.

 

Name
Description
Materials
Color
Texture
Remark

Anodizing

Anodizing bolsters metal surfaces by improving corrosion resistance, wear resistance, and hardness, safeguarding against damage. It's commonly applied to mechanical components, aircraft and automotive parts, and precision instruments, among others.

Aluminum

Clear, black, grey, red, blue, gold.

Smooth, matte finish.

Bead Blasting

Bead blasting yields components with a uniform, matte-textured surface. It's primarily utilized for aesthetic purposes and can precede additional surface treatments.

ABS, Aluminum, Brass, Stainless Steel, Steel

n/a

Matte

Powder Coating

Powder coating is applied as a dry, free-flowing powder, distinct from traditional liquid paints that rely on evaporating solvents. It's usually applied electrostatically and cured with heat or ultraviolet light.

Aluminum, Stainless Steel, Steel

Black, any RAL code or Pantone number

Gloss or semi-gloss

Electroplating
Electroplating serves various purposes, from functional to decorative, to enhancing corrosion resistance. It's employed across numerous industries, notably in the automotive field for chrome-plating steel car components.

Aluminum, steel, stainless steel

n/a

Smooth, glossy finish

Polishing

Polishing creates a glossy finish by physically rubbing the part or altering it chemically. This technique generates a surface that reflects light specularly and can, in certain materials, diminish diffuse reflection.

Aluminum, Brass, Stainless Steel, Steel

n/a

Glossy

Brushing

Brushing is a process utilizing abrasive belts to etch fine lines into a material's surface, typically for enhancing visual appeal.

ABS, Aluminum, Brass, Stainless Steel, Steel

n/a

satin

Why Choose Our Custom CNC Machining Service

Instant Quote & DFM Analysis

Share your concept with us, and we're ready to supply comprehensive details, including a tailored quotation and DFM reports, ahead of the official purchase order. This information aims to facilitate more effective dialogue with your end clients, ensuring clarity and informed decisions.

Excellet Equipments Support

Each year, GRP invests substantially in top-notch equipment, with 65% of our in-house machinery now sourced from renowned manufacturers in Germany, Sweden, and Japan, ensuring stable parameters and precise tolerance adherence.

Rapid Turnaround

Experience swift production cycles with our rapid turnaround services for machining work. Our streamlined processes, advanced equipment, and skilled team converge to slash lead times, delivering your precision machined parts with speed without sacrificing quality. Quick, efficient, and reliable — we prioritize getting your project from concept to completion in the shortest time possible.

Around-the-Clock Technical Assistance

Receive continuous engineering support, available 24/7 throughout the year, no matter your location. Our seasoned engineers are on standby to offer expert guidance on part design, material choices, finishing techniques, and even expedite your lead times with tailored solutions.






Diverse Industrial Applications of Our Precision CNC Machining Services

GR Precision Mold partners with top-tier manufacturers across various sectors, bolstering their production capabilities and optimizing supply chains. Our digitized custom CNC machining services are increasingly enabling manufacturers to transform concepts into tangible products efficiently.


FAQs About GRP CNC Services

 

 

GR Precision Mold is proficient in facilitating the production and prototyping of large machined parts, be it metal or plastic. We boast a substantial CNC machining build envelope measuring 2000 mm x 1500 mm x 300 mm. This ensures we can accommodate even sizable parts, including those tailored for furniture or architectural applications.

Absolutely! The exact tolerance we offer is contingent upon your specific requirements. For CNC machining, our metal components adhere to the ISO 2768-m standards, while our plastic parts align with ISO 2768-c standards. It’s worth noting that the demand for higher precision will correspondingly increase the cost.

Of course! GR Precision Mold has the capability to produce upwards of 10,000 diverse prototypes on a monthly basis, spanning from simple to intricate designs. Our infrastructure is bolstered by 120 state-of-the-art CNC machines, and we pride ourselves on having a team of over 100 skilled technical experts.

GR Precision Mold CNC Services is versatile in terms of material compatibility. Commonly used CNC materials include metals like aluminum, steel, brass, and copper, as well as plastics such as ABS, Polycarbonate, and POM. However, specific materials availability might vary, so it’s always a good idea to check directly with the service provider.

The expense associated with our CNC machining service is variable and directly influenced by the distinct attributes of your project, including its design and tolerance specifications. The machining duration for the chosen material is another key determinant of the cost. To illustrate, should you require a part where the combined machining and material expense is $2, with an additional setup charge of $200, the total cost for a singular part would amount to $202. Contrastingly, should you commission the production of 200 identical parts, the cost per unit would be just $3! Learn more about the CNC machining costs.

RapidDirect caters to both one-off prototype and large-scale production runs. Thus, there is typically no strict MOQ. Whether you need a single part or thousands, GR Precision Mold aims to provide a solution.

Lead times can vary based on the complexity of the design, the chosen material, and the current workload at GR Precision Mold. However, one of the advantages of CNC machining is its speed, especially for simpler parts. Once the setup is complete, machining times can be relatively quick. Parts delivered as fast as 1 day! But for an accurate estimate, it’s best to request for quotes directly.