PARTS IN 1-3 DAYS
QUICK-TURN CNC MACHINING
We don’t have minimums, we deliver the best parts for your money, and meet your deadlines!
Every job is unique, and many require special considerations for materials, finishing, custom work, or urgent delivery – your commercial quote will be turned around by seasoned estimators who confirm all aspects of your job.
Amazing companies choose PROTOTEK for high-quality parts done fast!
and real CNC machining service
and real CNC machining service
Expertise and quality are paramount. With more than three decades of commercial CNC machining experience, we’ve achieved a rich set of certifications and provide high-touch attention and service to every quote – and every job.
We engage with our customers to help them design better and more cost-effective parts before we start manufacturing. We want to be your one-stop shop for parts. Most of our business is from returning customers, and to achieve that, we strive to hit our customer’s deadlines across all project types.
CNC Machining Services – Working with PROTOTEK
Deep capabilities in commercial sheet metal and CNC machining – design, manufacturing, finishing, and even challenging assemblies.
What do we do?
- Sheet Metal Parts & Assemblies in 1-3 Days
- CNC Milled and Turned Parts in 1-3 Days
- Additive Manufactured Parts in 1 – 3 Days
- Expedited Jobs
About our fast, flexible, personalized service:
- ISO-9001:2015 Certified, ITAR Registered
- Quotes within 24 Hours
- Contact us about our expedited services
Our CNC machining services & other capabilities start below but they don’t stop there. Want to talk to someone about a job, upload a file for quote or call us now.
QUOTES WITHIN 24HRS
We accept these file types STP, PRT, IGS, DXF, STL, and more!
PARTS & ASSEMBLIES – ONE STOP SHOP
NO ORDER TOO SMALL
EXPEDITED PARTS IN 1-3 DAYS
PROTOTEK AS SEEN ON MANUFACTURING MARVELS®
- Manufacturing Design Assistance
- Laser Cutting - Punching
- Material Graining
- Drilling - Countersinking - Tapping
- Forming - Bending
- Hardware Insertion
- Mechanical Assembly
- TIG, MIG, Spot Welding & Weld Grinding
- Welded Assemblies & Frames
- Up to 5-Axis Milling
- Horizontal & Vertical Milling
- 9-Axis Mill-Turn
- CNC Routing
- Surface Grinding
- Lapping & Polishing
- Welding / Post-Weld Machining
- Heli-Coils / Hardware Inserts
Cutting & Engraving
- Wire & Sinker EDM Cutting
- Waterjet Cutting
- CO2 Laser
- Quality Engineering Assistance
- CMM Inspection Services
- First Article and AQL Inspections
- Compliance and Document Control
Plastic & Composite Fabrication
- Plastic Thermoforming - Bending
- Cryogenic Deflashing & Deburring
- Plastic Welding
- Thermal, Adhesive, & Mechanical Bonding
- Vapor Polishing
- Radiological Film-Cutting Services
- Manufacturing Design Assistance
- Tooling and Fixture Fabrication
- Electro-Mechanical Services
- Welded, Mechanical, & Small Parts Assembly
- Wire Harnessing
- Laser Cutting – Polymers & Metals
- Insert Installation
- Powder Coating
- Chemical Agent Resistant Coating
- Silk Screening
- Laser Engraving
- Chem Film
- Black Oxide
- Bead Blasting
- Laser Sintering
- Multi Jet Fusion
- Digital Light Processing
- Fused Filament Fabrication
- Material Jetting
- Cast Urethane
About CNC Machining
CNC machining allows for high volume output as well as rapid prototyping. CNC machining uses computers to guide machinery and tools during the manufacturing process. Once a CNC machine is started, all cuts and movements are controlled by the software. There is no hands-on maneuvering of the tools, which helps reduce manufacturing overhead and prevents accidents.
Many industries use CNC machining, including aerospace, electronics, metalwork, production, transportation, agriculture, automotive, construction, oil and gas and more.
Common CNC Machining Applications
If you’re looking for a partner that offers quick-turn CNC machining services, then you’ve come to the right place. We can help you with:
- Manufacturing Prototypes
- Parts Production
- Complex Part Production
- And More
Comparing CNC Machining Processes
DFM (Design for Manufacturability) – the initial phase of any CNC process is designing the end piece to be completed using CNC machining. DFM involves establishing a workpiece’s overall design and machinability to ensure it is simple to manufacture.
3-Axis CNC Milling – In 3-axis CNC milling, the workpiece remains motionless while the cutting tool mills along three different axes. 3-Axis milling machine applications include contoured shapes, hole features, and sharp edges.
4-Axis CNC Milling – With 4-axis CNC milling, the CNC machine operates on multiple axes, with an additional rotation around one of the axes. This additional rotation is called the A-axis. It is used to create cut-outs on the side of a workpiece.
5-Axis CNC Milling – 5-axis CNC milling machines utilize all 4-axes of 4-axis machining plus an additional rotational axis (B-axis). 5-axis milling machines can produce complex parts for various industries.
9-Axis CNC Mill Turn – The 9-axis CNC machine is similar in basic capabilities of the 5-axis machine but also includes angle milling, balance turning and more. 9-axis machines use both the B-axis and additional tools to create complex parts.
Horizontal Milling – With horizontal milling, multiple circular cutting heads are mounted to a horizontal arbor. The bed of the machine moves horizontally or may even rotate.
Vertical Milling – In vertical milling, the cutting head is oriented vertically on the milling machine. In a turret milling machine, the cutting head is fixed while the bed of the machine with material moves horizontally or vertically.
Turning – In turning, the workpiece is held and rotated while single-point tooling starts to shape the material. The cutting tool is moved linearly along the surface of the material to create the desired shape.
CNC Routing – With CNC routing, the routing machine holds the material, spindle, controller, and drive system. The spindle cuts while the drive system acts like an arm moving in three directions as directed by the controller. Materials such as plastic and some metals are suitable for routing machines.
Surface Grinding – A surface grinding machine uses a rotating wheel to extract material from the workpiece. It is commonly used during the finishing process, particularly when a piece needs a complete finish.
Broaching – The process of removing material from a piece using a toothed tool which is called the broach. The two types of broaching include rotary and linear (linear being the more common process)
Boring – the removal of material from a workpiece using tooling to drill holes into an object
Lapping – Lapping is the process of removing any remaining unwanted material from a produced piece. Lapping may include the use of coarse material such as glass plus an abrasive such as diamond. This combination is rolled between the two surfaces to remove material.
Polishing – A polishing machine, like lapping, works to remove any unwanted material from the workpiece. The result is a mirror-like finish free from any imperfections.
Welding– When it comes to CNC machining, some machines can support welding. This is an automated process that uses traditional welding techniques from a CNC perspective.
Post-Weld Machining – Post-weld machining is a secondary finishing process. During this stage, the part is further refined to meet the exact specifications of a project.
Hardware Insertion – Hardware insertion involves inserting a fastener with another material using extreme compressed force.
Wire EDM Cutting – EDM (aka electrical discharge machining) cutting involves using an electrical spark to cut the desired material.
Waterjet Cutting – This style of cutting utilizes a high-power water jet to cut materials. The water often contains a coarse material to aid in cutting.
CO2 Laser Cutting – Carbon dioxide laser cutting uses infrared light to cut various materials.
Fiberoptic Laser Cutting – Fiberoptic laser cutting involves laser diodes diffused through optical fibers. Through this process, cuts can be made into the desired material.
Mechanical Assembly – putting together the final piece; can involve several initial CNC processes to create initial parts.
CNC Milling vs. CNC Turning
CNC milling and CNC turning are different processes. One big difference is that turning is primarily used for making cylindrical components while milling can be used for various shaped parts. CNC milling leverages a specific tool that rotates to make cuts and shape a component. In CNC turning, the material itself spins to allow for the cutting device to shape and form the final product. In the end, each process has its benefits. It all depends on the details and need of your end part.
CNC Machining Materials and Material Characteristics
|CNC Materials||Grade / Alloy||Heat Treatable||Tensile Strength(Ultimate, PSI)||Fatigue Strength(PSI)||Hardness(Brinell)||CNC Machinability(AISI Rating)||CNC Materials||Grade / Alloy||Heat Treatable||Tensile Strength(Ultimate, PSI)||Fatigue Strength(PSI)||Hardness(Brinell)||CNC Machinability(AISI Rating)|
|Brass||C46400||No||55000 - 88000||14500||82||30%|
|Silicon Aluminum Bronze||C64200||No||75000-102000||50000||N/A||60%|
Available CNC Part Finishes
Anodizing – Anodizing helps with reducing corrosion and enhancing your part with a more metallic look to your aluminum parts. It can reduce scratching, act as an electrical insulator and is also a very durable finish.
Types of Anodizing Specifications:
- Type II
- ROHS compliant
- Clear (class 1)
- Black (class 2)
Chromate Plating – Chrome plating also provides protection for your parts from corrosion but also adds electrical conductivity to your part. It also provides the ability to paint the part. Certain metals will require special pre-treating to take full advantage of chrome plating.
Types of Chrome Plating Specifications:
- Yellow (Type I, Non-ROHS)
- Clear (Type II, ROHS)
- Class 1A: For protection against corrosion in either painted or unpainted state
- Class 3: For protection against corrosion in situations where low electrical resistance is required
CNC Machining Machines, Part Sizes and Precision Tolerances
Here is the list of CNC machines we leverage to tackle various CNC machining projects
|Machine Type||Machining Method||XYZ Machining Limits||Precision / Repeatability (in.)||Axis||Brand / Description||Model / Description||Machine Type||Machining Method||XYZ Machining Limits||Precision / Repeatability (in.)||Axis||Brand / Description||Model / Description|
|Milling||CNC Horizontal Mill||20" X 20" X 20"||±0.0002||B-Axis||Daewooo||DHP 4000 High Speed NC-HMC|
|Milling||CNC Horizontal Mill||20" X 20" X 20"||±0.0002||B-Axis||Doosan||HP 4000 High Speed NC-HMC|
|Milling||CNC Vertical Mill||24.4" X 19.7" X 11.8"||±0.00004||3-axis||Sodick (1/2)||High Speed CNC-VMC (Machine # as of 04-21-2021)|
|Milling||CNC Vertical Mill||24.4" X 19.7" X 11.8"||±0.00004||3-axis||Sodick (2/2)||High Speed CNC-VMC (Machine # as of 04-21-2021)|
|Milling||CNC Vertical Mill||64" X 29" X 24"||±0.00012||4-axis||Doosan||DNM 750 CNC-VMC|
|Milling||CNC Vertical Mill||27.6" X 15.7" X 11.8"||±0.00012||3-axis||Brother (1/4)||TC-S2D-0 CNC-VMC & Tapping Center (Machine # as of 04-21-2021)|
|Milling||CNC Vertical Mill||27.6" X 15.7" X 11.8"||±0.00012||3-axis||Brother (2/4)||TC-S2D-0 CNC-VMC & Tapping Center (Machine # as of 04-21-2021)|
|Milling||CNC Vertical Mill||27.6" X 15.7" X 11.8"||±0.00012||3-axis||Brother (3/4)||TC-S2D-0 CNC-VMC & Tapping Center (Machine # as of 04-21-2021)|
|Milling||CNC Vertical Mill||27.6" X 15.7" X 11.8"||±0.00012||3-axis||Brother (4/4)||TC-S2D-0 CNC-VMC & Tapping Center (Machine # as of 04-21-2021)|
|Milling||CNC Vertical Mill||51.5" X 22.5" X 24"||±0.0002||4-axis||Akira Seiki||Performa V5AXP CNC-VMC|
|Milling||CNC Vertical Mill||32" X 20" X 20"||±0.0002||3-axis||Akira Seiki||V3-A Performa CNC-VMC|
|Milling||CNC Vertical Mill||32" X 19" X 20"||±0.0002||3-axis||Akira Seiki||V3 Performa CNC-VMC|
|Milling||CNC Vertical Mill||24" X 18" X 20"||±0.0002||3-axis||Akira Seiki||SV600 CNC-VMC|
|Mill-Turn||CNC Multi-Axis||Bar capacity: 2.6" - Main Spindle Std Chuck: 6"Main Spindle Max Chuck: 8″ - Max turning diameter: 21.25"Max turning length: 40.15"||±0.00008||9-axis||Doosan||Puma MX 2100ST, Multi-Axis, Multi-Tasking CNC Turning Center|
|Mill-Turn||CNC Multi-Axis||Bar capacity: 2.6" - Chuck capacity: 8" - Swing: 9.1"Max turning diameter 9" - Max turning length: 27.4"||X & Z-axis: ±0.00008Y-axis: ±0.00012C-axis: ±0.006°||8-axis||Doosan||Puma TT1800SY, Multi-Axis CNC Turning Center|
|Mill-Turn||CNC Multi-Axis||Bar Capacity: 2.6" - Chuck capacity: 8" - Swing: 21.6"Max turning diameter: 13" - Max turning length: 20.1"||X & Z-axis: ±0.00008Y-axis: ±0.00012C-axis: ±0.006°||Y-Axis||Daewooo||Puma 2000Y, High Performance Turning Center with Y-axis|
|Turning||CNC Lathe||Bar capacity: 2" - Chuck capacity: 6.5" - Swing: 20"Max turning diameter: 9.8" - Max turning length: 20"||X & Z-axis: ±0.00008C-axis: ±0.006°||Daewooo||Lynx 220LM, High Performance Mill-Drill Turning Center|
|Router||CNC Router||110" X 53" X 9.8"||±0.002||Anderson||Stratos WFD CNC Router, 2 Spindles|
|Laser Cutting||CNC Laser||48″ X 48″ Cutting Pallet, 12″ Z-Travel||±0.0002||-||Beam Dynamics||LMC-5000 CNC Laser Cutting System|
|Laser Cutting||CNC Laser||X-axis: 120.86" - Y: 61.02" - Z-axis: 3.93" Max Material Thickness: 0.875" (4kW)||±0.0004||5-axis||Amada||FOL 3015 AJ Fiber Laser AJ4000|
|Press Brake||CNC Hydraulic Press Brake||Max Bend Length: 102.4" - Dist. Between Frames (A): 87" Stroke Length: 9.8" - Open Height (no holders): 20.5" Throat Depth: 17.7" - Machine stroke: 9.8" - Table Height: 37.4"||-||Amada||HG 8025|
|Press Brake||CNC Hydraulic Press Brake||Max Bend Length: 126.77" - Stroke Length: 7.87" Movement Range: L-axis: 27.55" - Y-axis: 86.6" - Z-axis: 9.8"||-||Amada||HDS-1303NT|
|Press Brake||CNC Hydraulic Press Brake||Max Bend Length: 98.48" - Stroke Length: 5.91"||-||Amada||FBD 8025 NT|
|Press Brake||CNC Hydraulic Press Brake||Max Bend Length: 41.3" - Dist. Between Frames (A): 27.9" Stroke Length: 5.9" - Open Height (with PHL): 16.5"||-||Amada||EG 4010|
|Press Brake||CNC Hydraulic Press Brake||Max Bend Length: 82.08" - Stroke Length: 3.93"||-||Amada||RG-M2 5020|
|Press Brake||CNC Hydraulic Press Brake||Max Bend Length: 94" - Stroke Length: 3.94" Open Height: 14.58" - Closed Height: 7" - Throat Depth: 15.76"||-||Amada||RG-80|
|Press Brake||CNC Hydraulic Press Brake||Max Bend Length: 122" - Max Stroke Length: 5.91" Open Height: 16.5" - Throat Depth: 15.7" Distance between side frames: 106" - Length of Stroke: 5.91"||-||Amada||FBD 1253 NT|
|Milling||CNC Vertical Mill||26" X 15" X 4"||±0.005||3-axis||Sharp||LMV|
|Milling||CNC Vertical Mill||26" X 15" X 4"||±0.005||3-axis||Sharp||OMV|
|Milling||CNC Horizontal Mill||22.06" X 26.2" X 26.2"||±0.0002||3-axis||Mazak||Nexus 4000-III Horizontal Center|
|Milling||CNC Vertical Mill||13.78" X 21.66" X 20.08"||±0.0002||5-axis||Mazak||Variaxis J-500/5X (Machine #1 as of 04-21-2021)|
|Milling||CNC Vertical Mill||13.78" X 21.66" X 20.08"||±0.0002||5-axis||Mazak||Variaxis J-500/5X (Machine #2 as of 04-21-2021)|
|Milling||CNC Vertical Mill||41.3" X 20" X 20"||±0.0002||4-axis||Mazak||Nexus 510C-II|
|Milling||CNC Vertical Mill||17.72" X 8.27" X 36.69"Capacity - Max Swing: 20.87" - Max Machining Dia: 19.69"Max Bar Work Capacity: 4.0" - Max Machining Length: 33.62"||±0.0002||5-axis||Mazak||Integrex i-100 Bartac-S|
|Milling||CNC Vertical Mill||20.08" X 36.83" X 20.08"||±0.0002||5-axis||Mazak||Variaxis i-600|
|Milling||CNC Vertical Mill||26" X 16" X 20"||±0.0002||3-axis||Hurco||VM10i|
|Milling||CNC Vertical Mill||40" X 20" X 20"||±0.0002||3-axis||Hurco||VM20i|
|Milling||CNC Vertical Mill||50" X 20" X 20"||±0.0002||3-axis||Hurco||VM30i|
|Milling||CNC Vertical Mill||42" X 24" X 24"||±0.0002||3-axis||Hurco||VMX42|
|Milling||CNC Vertical Mill||24" X 20" X 24"||±0.0002||3-axis||Hurco (1/3)||VMX24 (Machine #10 as of 04-21-2021)|
|Milling||CNC Vertical Mill||24" X 20" X 24"||±0.0002||3-axis||Hurco (2/3)||VMX24 (Machine #11 as of 04-21-2021)|
|Milling||CNC Vertical Mill||24" X 20" X 24"||±0.0002||3-axis||Hurco (3/3)||VMX24 (Machine #12 as of 04-21-2021)|
|Milling||CNC Vertical Mill||60" X 25.98" X 24.01"||±0.0002||5-axis||Hurco||VMX60 SRTi|
|Milling||CNC Vertical Mill||26" X 14" X 18"||±0.0002||3-axis||Hurco (1/2)||VM1 (Machine #17 as of 04-21-2021)|
|Milling||CNC Vertical Mill||26" X 14" X 18"||±0.0002||3-axis||Hurco (2/2)||VM1 (Machine #19 as of 04-21-2021)|
|Milling||CNC Vertical Mill||40" X 18" X 18"||±0.0002||3-axis||Hurco||VM2|
|Turning||CNC Lathe||Bar capacity: 2.6" - Chuck capacity: 8" - Max Swing: 26.6" Max turning diameter: 14.76" - Max turning length: 21.28"||Positioning accuracy: ±0.0002 Repeatability: ±0.0001||3-axis||Mazak||Nexus 200-II MY Quick Turn|
|Turning||CNC Lathe||Bar capacity: 2.0" - Chuck capacity: 8" - Max Swing: 10"Max turning diameter: 12" - Max turning length: 18.8"||Positioning accuracy: ±0.0002 Repeatability: ±0.0001||3-axis||Hurco||TM8 lathe|
|Press Brake||CNC Hydraulic Press Brake||Bed Length: 80" - Stroke: 4"Distance between housings: 60" - Throat: 16"||-||Guifil||PE 20-60|
|Milling||CNC Vertical Mill||42" X 24" X 20"||±.0002||3-axis||OKK||VB53|
|Milling||CNC Vertical Mill||26" X 14" X 18"||±.002||3-axis||Hurco||VMX1|
|Milling||CNC Vertical Mill||26" X 16" X 20"||±.0008||3-axis||Hurco||VM10i|
|Milling||CNC Vertical Mill||40" X 20" X 20"||±.002 (Temporary)||3-axis||Hurco||VM20|
|Milling||CNC Vertical Mill||30" X 20" X 24"||±.00019||3-axis||Hurco||VMX30i|
|Milling||CNC Vertical Mill||30" X 20" X 24"||±.00019||3-axis||Hurco||VMX30i (30)|
|Milling||CNC Vertical Mill||30" X 20" X 24"||±.00019||3-axis||Hurco||VMX30i (A)|
|Milling||CNC Vertical Mill||30" X 20" X 24"||±.00019||3-axis||Hurco||VMX30i (B)|
|Milling||CNC Vertical Mill||42" X 24" X 24"||±.0003||3-axis||Hurco||VMX42|
|Milling||CNC Vertical Mill||84" X 34" X 30"||±.00019||3-axis||Hurco||VMX84i|
|Laser Cutting||CNC Laser||48" X 96"||±.005||3-axis||Mitsubishi||HV-2512HV-20CF2|
|Press Brake||CNC Hydraulic Press Brake||Overall Die Length: 72" - Overall Die Length: 72"Distance Between Housings: 52" - Stroke, adjustable: 8"Open Height: 14" - Closed Height: 6" - Throat Depth: 8"||±.005 @ 6"||-||Accurpress||7606|
|Turning||CNC Lathe||Bar capacity: 2.36" - Chuck capacity: 8" - Max Swing: 18"Max turning diameter: 14" - Max turning length: 40"||±.00018||-||Trak Lathe||TRAK-1845RX|
We ship parts ANYWHERE in the US
in as little as 1-3 days!
in as little as 1-3 days!
We ship parts ANYWHERE in the US in as little as 1-3 days!
We have 9 locations that cover the US
215 Devcon Dr.
San Jose, CA 95112
Sac EDM a Prototek Company
11341 Sunrise Park Dr.
Rancho Cordova, CA 95742
Midwest Prototyping a Prototek Company
1100 W 120th Ave #100
Westminster, CO 80234
900 Cheyenne Ave.
Grafton, WI 53024
Midwest Prototyping a Prototek Company
10949 Blackhawk Dr
Blue Mounds, WI 53517
Prototype Solutions Group a Prototek Company
1621 Indianhead Drive
Menomonie, WI 54751
205 Pine St.
Contoocook, NH 03229
244 Burnham Intervale Rd.
Contoocook, NH 03229
ProtoCAM A Prototek Company
6620 Grant Way
Allentown, PA 18106
Prototek Trending Topics
- Sheet Metal Fabrication
- Sheet Metal Quotes
- Metal Fabrication Services
- Online Metal Fabrication
- US Sheet Metal Fabrication
- Rapid Sheet Metal Services
- Sheet Metal Prototyping
- Metal Prototyping
- Sheet Metal Fab
- Sheet Metal Services
- Metal Manufacturing
- Rapid Prototyping
- Metal Shop Services
- Prototyping Quotes
- Waterjet Cutting
Frequently Asked Questions
Are you a broker or a manufacturer?
We are a full service sheet metal and machining manufacturer with four U.S. production facilities across the nation allowing us to deliver your high-quality parts FAST.
Does PROTOTEK manufacture in higher-volume quantities?
We focus on prototypes to low-volume production and can do larger runs. All our parts, from one – to 100 – to 1,000+ are always delivered with production-quality finish.
What are your payment terms?
PROTOTEK offers Net 30 payment terms for established customers with good credit.
What file formats are required or suggested for requesting a quote?
We accept .STP, .DWG, .IGS, .PDF, Parasolid files, and more.
What if I need help with my part design?
Our estimators are on hand to discuss your specific job needs. Our expert team can help you move your project smoothly through the design process and on to delivery.
If I do not have a CAD model, can you quote/fabricate my parts?
Yes, we can work directly from your drawings. Additional engineering charge (NRC) may apply depending on complexity.
How do I submit my NDA and other document requests?
Submit your NDA, Approved Vendor and other document requests to your sales rep or estimator.
How long is a quote valid?
Our quotes stand firm for 7 days from the date of issue.
How fast can I get my order?
Lead time for standard orders is 10 business days. Expediting options are available, including emergency service – down to as fast as 1-2 business days, depending on complexity of work and materials.