Ever wondered why some machined parts arrive flawless and on time, while others cause endless headaches? Finding the right supplier isn’t just about cutting costs—it’s about securing quality, reliability, and peace of mind. The right manufacturer can transform your project, speeding up processes and preventing costly mistakes. Imagine working with a partner who gets your needs and delivers—every time. Curious which factories truly stand out? Dive in to discover the top machined parts suppliers worth your trust.

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Custom Precision Machined Parts Manufacturer | TFG USA

Product Details:
Custom precision machined metal parts manufactured by The Federal Group USA using CNC machining, lathes, presses, and other advanced manufacturing techniques for intricate and exact component requirements.

Technical Parameters:
– Tight tolerances achievable down to 0.01-0.05mm
– ISO 9001:2015 QMS certified processes
– Capabilities include machining of features such as threads, holes, grooves, and
– Use of CAD and CAM software for precise design and repeatable manufacturing

Application Scenarios:
– Automotive (e.g., components for engine assemblies)
– Electrical and electronics industries
– Medical and healthcare device manufacturing
– Aerospace components and assemblies

Pros:
– High precision and accuracy for complex and intricate parts
– Excellent repeatability for mass production with consistent quality
– Ability to meet strict tolerance and performance requirements
– Suitable for both simple and complex custom metal components

Cons:
– Less room for error increases dependency on skilled machinists and advanced
– Potentially higher production costs due to the need for specialized machinery

Home – Machined Parts Direct

Product Details:
Machined Parts Direct provides precision-manufactured parts for a variety of industries. They connect customers needing machined components with a vetted network of machine shops, offering services from quoting to production of complex parts. The service allows for secure uploading of proprietary part models and drawings, and supports creation of 3D models if not available.

Technical Parameters:
– Ability to handle parts that require 3D models or technical drawings
– Parts are precision-machined to customer specifications and inspected per AQL
– Option for first article inspection to verify dimensional accuracy before full
– Non-Disclosure Agreements in place to protect proprietary customer information

Application Scenarios:
– Food processing equipment components (agitators, heat exchangers, fillers, etc.)
– Agriculture machinery parts (cultivators, plows, rakes, PTO drives, etc.)
– Industrial machine parts (shafts, splines, sprockets, couplings, valves, etc.)
– Medical device components (surgical tools, replacement parts, hospital
– Aerospace and defense applications (aircraft parts, missile deployment, radar
– Pharmaceutical processing equipment (granulators, mixers, filters, etc.)
– Robotics mechanical parts (end effectors, actuators, guide rails, etc.)

Pros:
– Offers an easy and practical process to obtain custom machined parts across
– Secure handling of proprietary customer data with NDA-protected network
– Capability to create 3D models for customers who lack them
– Comprehensive inspection process with first article and AQL-based sampling

Cons:
– Customers are responsible for extra costs if parts match an incorrect
– There is a fee for 3D modeling services if a customer does not have a model
– Potential production delays due to the need for model approval or inspection

Machined Part Manufacturers — RFQ LINE

Product Details:
RFQ LINE connects customers with 70+ certified machined part manufacturers offering a broad range of custom machined components and assemblies, including screw machine parts, precision Swiss parts, CNC machined parts, rotary transfer parts, large turned industrial parts, and specialty processes like EDM, ECG, and water jet cutting.

Technical Parameters:
– Screw machines: single/multi-spindle, diameters up to 6”
– Swiss turning: tolerances to +/- .0005”, diameters from .002”
– Rotary transfer: up to 16 stations, diameters to 1.77”, lengths to 6”
– CNC turning/milling: parts up to 76.00” diameter, lengths to 120.00”, boring

Application Scenarios:
– Automotive, medical device, electronic, and aerospace part supply (all tiers)
– Prototyping and 3-shift production cycles for complex assemblies
– Heavy equipment, mining, rail, and petrochemical industries
– Defense and specialized precision component manufacturing

Pros:
– Wide material compatibility (steel, aluminum, brass, copper, exotic alloys,
– Access to certified suppliers (ISO9000, IATF 16949, AS9100, FDA, MIL-STD)
– High-precision manufacturing with tight tolerances and complex geometries
– Capability for both small, micro parts and large turned or machined components

Cons:
– Not all technical specifications or product ranges are detailed for each process
– Potential for lead time variability due to use of multiple suppliers

The World’s Largest Custom Manufacturing Marketplace – MFG

Product Details:
MFG is an online manufacturing marketplace that connects buyers needing custom-manufactured parts with a global network of manufacturers. Services include CNC machining, 3D printing, sheet metal fabrication, injection molding, engineering and design, metal stamping, and raw material sourcing. The platform handles quotation requests, order management, supplier communication, and payments.

Technical Parameters:
– Supports a variety of manufacturing processes: CNC machining, 3D printing (SLA,
– Secure file submission for quote requests (protected by MFG NDA or buyer’s own
– Integrated order tracking and payment processing are included in the platform
– Business registration for manufacturers seeking customers and a searchable

Application Scenarios:
– Prototyping or mass production of custom-engineered parts for industries such
– Sourcing of precision components through digital RFQs to a vetted manufacturer
– Streamlined supplier discovery, communication, and transaction for product
– Companies looking to purchase discounted manufacturing materials

Pros:
– Buyers receive multiple quotes for custom parts with one RFQ submission, saving
– End-to-end process integration from quotation to order tracking and payment
– Free-to-use service for buyers; transparent and competitive pricing from
– Trusted by major organizations such as the U.S. Department of Defense, General

Cons:
– No explicit mention of quality assurance standards or certifications enforced
– Potential for communication delays or misunderstandings due to global supplier
– Platform advantages mainly benefit buyers; suppliers may incur fees or face

CNC Manufacturing, Fast Quotes & Free CAD | eMachineShop

Product Details:
eMachineShop offers a suite of custom manufacturing services, including CNC machining, sheet metal fabrication, injection molding, 3D printing, surface finishing, and secondary machining processes. Their services are complemented by free CAD software for easy part design, quick quoting, and online ordering. They work with both metallic and plastic materials and cater to projects ranging from prototypes to full-scale production runs.

Technical Parameters:
– CNC machining for both metals and plastics using precision milling and turning
– Sheet metal fabrication techniques include waterjet cutting, laser cutting,
– Injection molding for moderate to large quantities of plastic parts
– 3D printing available for both plastic and metal parts with color options,

Application Scenarios:
– Rapid prototyping for product development
– Custom part manufacturing for engineering and mechanical design
– Production runs requiring tight tolerances and quick turnaround times
– Manufacturing parts with specific finishing or secondary machining requirements

Pros:
– Supports all order sizes—from single prototypes to large-scale production—withou
– Free and easy-to-use CAD software for both novices and experienced engineers
– Comprehensive quality assurance with dimensional testing and defect analysis
– Excellent customer support including dedicated account representatives and
– Free ground shipping within the continental USA

Cons:
– No explicit mention of international free shipping (free shipping restricted to
– Limited information about material certifications or advanced material options

Online CNC Machining Services for Custom Parts – RapidDirect

Product Details:
RapidDirect offers online CNC machining and manufacturing services for custom parts, including CNC milling, CNC turning, injection molding, sheet metal fabrication, 3D printing, die casting, vacuum casting, and surface finishing. They provide instant quotes online and solutions from rapid prototyping to on-demand manufacturing.

Technical Parameters:
– CNC machining (including 5-axis capabilities and precision machining)
– Injection molding (including overmolding and insert molding)
– Sheet metal fabrication (laser cutting and metal bending options)
– Additional processes such as die casting, vacuum casting, wire EDM, and

Application Scenarios:
– Aerospace components
– Automotive parts
– Medical devices
– Prototyping and on-demand manufacturing for electronics, robotics, and consumer

Pros:
– Wide range of manufacturing services and processes available from a single
– Online instant quoting streamlines and accelerates cost estimation and ordering
– Ability to support projects from prototyping to mass production
– Industry solutions tailored to sectors such as aerospace, automotive, medical,

Cons:
– No explicit mention of minimum order quantities or lead times on the surface
– Detailed technical tolerances and material specifications are not clearly

Small Mechanical Components from SDP/SI

Product Details:
SDP/SI (Stock Drive Products/Sterling Instrument) offers mechanical components including gears, pulleys, belt drives, bearings, couplings, shafts, bushings, fasteners, and related precision drive and motion control products. They serve as distributors and manufacturers for small mechanical and electro-mechanical components.

Technical Parameters:
– Wide range of gear types: spur, helical, bevel, miter, worm, anti-backlash, and
– Pulleys and timing belts in different pitches (e.g., MXL, XL, L, T, HTD
– Bearings available in ball, needle, and linear types with varying load
– Shafting and couplings compatible with miniature and precision motion

Application Scenarios:
– Robotics and automation systems
– Medical device assemblies
– Precision instruments and laboratory equipment
– Aerospace and defense subsystems

Pros:
– Extensive selection of precision mechanical components and hardware
– Customization and manufacturing options available for unique requirements
– Technical support and engineering resources for design assistance
– Rapid shipping of stock items for prototyping and production needs

Cons:
– Products are often specialized for small-scale or precision applications,
– Customization lead times can be longer compared to off-the-shelf items

Custom Machined Parts -CNC, Precision, Forged, Plated, Casted, Manufacturer

Product Details:
The company specializes in manufacturing precision machined parts using CNC machining, custom fabrication, and a variety of materials including metals and plastics. Offerings include OEM parts, prototypes, small to large production runs, and support for custom engineering requirements.

Technical Parameters:
– CNC machining tolerances up to ±0.01mm
– Supports materials such as aluminum, stainless steel, brass, copper, titanium,
– Production capabilities for both high-volume and low-volume orders
– Surface finishes including anodizing, plating, powder coating, polishing, and

Application Scenarios:
– Automotive components manufacturing
– Aerospace parts and subassemblies
– Medical device fabrication
– Electronics and telecommunications hardware

Pros:
– High precision and consistency in machined components
– Wide range of materials and surface finishing options
– Capability to handle custom and complex engineering designs
– Flexible production volumes accommodate both prototyping and mass production

Cons:
– Lead times may be extended for highly customized or complex parts
– Cost efficiency may decrease for extremely low-volume orders

Machined Parts Manufacturer – Large CNC Machining Supplier | Marberry …

Product Details:
Marberry Machine manufactures and provides machined parts and fabricated assemblies for industrial applications. Their offerings include CNC milling, CNC turning, manual milling and turning, welding (including cladding/corrosion resistant overlay), turnkey supply and project management, and custom fabrication. They handle large, heavyweight parts with complex geometries as well as smaller parts.

They also supply machined products such as bar, pipe, tube, forgings (open and closed die), castings, and structural plate & beam, using a wide range of materials including exotics, stainless steel, alloy steels, carbon steel, polymers, and Inconel 625.

Technical Parameters:
– 3 and 4 axis CNC milling capability for parts up to 45,000 pounds
– CNC turning for parts up to 216 inches in diameter
– Manual turning with lengths up to 240 inches and VTLs for diameters up to 96
– Facility equipped with overhead cranes lifting up to 30 tons, and 45,600 square

Application Scenarios:
– Oil & gas parts and assemblies
– Military and defense components
– Mining, construction, and conveying equipment
– Food processing machinery and equipment
– Refineries and power generation components
– Tool & die and forging industry parts

Pros:
– Specialization in large and heavyweight, complex parts as well as small part
– Advanced equipment and skilled personnel ensure high quality and quick
– Turnkey supply and project management, including materials supply and testing
– Ability to machine a wide variety of materials, including exotic alloys and

Cons:
– Focus on large parts may be less suitable for customers needing only small,
– Manual machining still used in some processes, which may be slower or less

Forgings, Castings, and CNC Machined Parts Suppliers Canada

Product Details:
RPPL supplies precision engineered, high-volume custom manufactured parts including steel forgings, aluminum castings, fasteners, and CNC machined parts, mainly for the automotive industry. Additional services include quality management, warehousing, kitting & assembly, logistics, engineering, and sorting.

Technical Parameters:
– Products manufactured in IATF 16949 and ISO 9001 certified facilities
– Capability to supply hot and cold forgings, HPDC (High Pressure Die Casting),
– Integrated warehousing and JIT (just-in-time) delivery solutions across USA,

Application Scenarios:
– Automotive manufacturing, Tier 1 and OEM suppliers
– Production requiring mission-critical, highly precise metal components
– Supply chain scenarios needing warehousing, JIT delivery, and inventory

Pros:
– Presence across USA, Canada, and Mexico for complete North American coverage
– JIT delivery and warehousing services that reduce customer inventory costs
– Competitive pricing due to automation, optimization, and economies of scale
– Fully certified, trusted supplier to major Tier 1 and OEM clients

Cons:
– Product information primarily focused on automotive industry; less detail about
– Specific technical specs (dimensions, tolerances, materials) not provided in

Comparison Table

Company	Product Details	Pros	Cons	Website
Custom Precision Machined Parts Manufacturer	TFG USA	Custom precision machined metal parts manufactured by The Federal Group USA	High precision and accuracy for complex and intricate parts Excellent	Less room for error increases dependency on skilled machinists and advanced
Home – Machined Parts Direct	Machined Parts Direct provides precision-manufactured parts for a variety of	Offers an easy and practical process to obtain custom machined parts across	Customers are responsible for extra costs if parts match an incorrect	machinedpartsdirect.net
Machined Part Manufacturers — RFQ LINE	RFQ LINE connects customers with 70+ certified machined part manufacturers	Wide material compatibility (steel, aluminum, brass, copper, exotic alloys,	Not all technical specifications or product ranges are detailed for each	www.rfqline.com
The World’s Largest Custom Manufacturing Marketplace – MFG	MFG is an online manufacturing marketplace that connects buyers needing	Buyers receive multiple quotes for custom parts with one RFQ submission, saving	No explicit mention of quality assurance standards or certifications enforced	www.mfg.com
CNC Manufacturing, Fast Quotes & Free CAD	eMachineShop	eMachineShop offers a suite of custom manufacturing services, including CNC	Supports all order sizes—from single prototypes to large-scale production—withou	No explicit mention of international free shipping (free shipping restricted to
Online CNC Machining Services for Custom Parts – RapidDirect	RapidDirect offers online CNC machining and manufacturing services for custom	Wide range of manufacturing services and processes available from a single	No explicit mention of minimum order quantities or lead times on the	www.rapiddirect.com
Small Mechanical Components from SDP/SI	SDP/SI (Stock Drive Products/Sterling Instrument) offers mechanical components	Extensive selection of precision mechanical components and hardware Customizatio	Products are often specialized for small-scale or precision applications,	www.sdp-si.com
Custom Machined Parts -CNC, Precision, Forged, Plated, Casted, Manufacturer	The company specializes in manufacturing precision machined parts using CNC	High precision and consistency in machined components Wide range of materials	Lead times may be extended for highly customized or complex parts Cost	machinedpartsmanufacturer.com
Machined Parts Manufacturer – Large CNC Machining Supplier	Marberry …	Marberry Machine manufactures and provides machined parts and fabricated	Specialization in large and heavyweight, complex parts as well as small part	Focus on large parts may be less suitable for customers needing only small,
Forgings, Castings, and CNC Machined Parts Suppliers Canada	RPPL supplies precision engineered, high-volume custom manufactured parts	Presence across USA, Canada, and Mexico for complete North American	Product information primarily focused on automotive industry; less detail about	rpplindustries.com

Frequently Asked Questions (FAQs)

How do I find reliable machined parts suppliers or manufacturers?
Start by researching online directories, industry trade shows, or business networks. Look for suppliers with strong reputations, positive reviews, and proven experience in your required industry. Ask for recommendations from your network, and always check references before making a decision.

What factors should I consider when choosing a machined parts supplier?
Focus on quality standards, capacity, lead times, pricing, certifications, and communication skills. Ensure the supplier can meet your technical requirements and production volumes, and check how they handle quality control and customer service.

How can I verify a manufacturer’s quality and capabilities?
Request samples, review certifications (like ISO 9001), and ask for a tour of their factory if possible. References from existing clients or case studies can also provide valuable insight into their reliability and workmanship.

What information should I provide to get an accurate quote?
Share detailed drawings or CAD files, material specifications, desired quantities, tolerances, finishing requirements, and delivery deadlines. The more precise your details, the more accurate the supplier’s quote will be.

Why is it important to check for certifications and compliance?
Certifications show a supplier’s commitment to quality standards and industry regulations, which reduces risk for your project. Compliance ensures the parts you receive are safe, reliable, and suitable for your intended application.