Fielding an extensive lineup of state-of-the-art CNC machining equipment, Heartland Enterprises is leading the way in multi-function and traditional turning operations producing large diameter shafts, rods, and other highly engineered parts for a variety of industries.

Highlights of our CNC turning capabilities include:

  • Large turning projects up to 42″ diameter
  • Ability to accommodate part lengths up to 70″
  • Advanced lathes feature a 42″ swing & can clear the cross slide on top of the carriage for diameters up to 24″
  • Typical production runs range from 5 to 100 pieces, we’re also fully equipped for high volume production runs

Certifications & Quality

As an AS9100D / ISO9001:2015 certified organization, we pride ourselves in supporting large OEMs with disciplined quality control processes in order to ensure the best work possible. We strive to serve our customers with distinction and act as a long term partner for companies in the aerospace, military, agriculture, oil & gas, power generation, and semiconductor industries.

Material Capabilities

We are capable of CNC turning a diverse range of materials including:

CNC Turning Equipment

Our equipment is primarily manufactured by Okuma and includes thirteen 2-axis and 4-axis horizontal CNC lathes.  Our four machining centers provide highly precise horizontal and vertical operations for milling and drilling.  We can perform CNC OD grinding as well as manual grinding using any one of our several models that boast top of the line controls, drives, and spindles.

Secondary Operations

Besides our large diameter CNC turning capabilities, we offer in-house secondary services that include honing, thread forming, cylindrical grinding, and phosphating.  Our carefully vetted, highly reliable outsource partners can assist with thermal spray coating, flame hardening, Blanchard grinding, heat treating, ion or salt nitriding, carburizing, stress relieving, and induction hardening.   For threading operations, we’ll meet virtually any customer specified tolerance requirements. Our services are turnkey and we take the lead in all raw materials purchasing, machining, shipping, and subcontracting for an array of projects.

Case Study:

Introducing innovative tools to reduce costs
Job Description

The client required production of large quantities of a high volume Inconel tubes made from Inconel bar.


The Inconel bar stock is very hard and extremely challenging to drill using high quantities of expensive drilling inserts.


With our extensive experience machining hard and heat resistant materials paired with knowledge from one of our leading tooling providers, we were able to test and implement an innovative coated insert that reduced tool wear with increased Inconel machining performance.

Contact Us


Machining Process Turning
Form Turning
Large Diameter Turning
Large Swing Turning
Long Turning
Straight Turning
Equipment 13 two axis, horizontal CNC lathes
2 four axis horizontal CNC lathes
2 multi-function CNC mill/lathes
2 vertical CNC lathes
1 vertical twin spindle CNC lathe
1 horizontal CNC machining center
1 CNC od grinder plus several manual grinders
Maximum Swing Diameter 42 in
Maximum Swing Over Cross Slide 24 in
Maximum Part Length 70 in
Threading As per customer specification
CNC Diameter Capacity .5 to 42 in
Materials Aluminum
Cast IronAlloy SteelCarbon Steel
Duplex Stainless Steel
Inconel 718
Inconel 901
Inconel 625
Secondary Services CNC Machining
CNC Grinding
Thread Rolling
Outsourcing Capability Thermal Spray Coatings
Flame Hardening
Blanchard Grinding
Mechanical and Non-destructing testing
Heat Treating
Ion Nitriding
Salt Bath Nitriding
Stress relieving
Induction Hardening
Production Volume 5 to 10,000 pieces
Specialty Production Shop
High Volume
Available Lead Times1 4 w
1 Quoted on job by job basis

Additional Information

Industry Focus Aerospace
Gas and Oil
Power Generation
Industry Standards International Organization for Standardization (ISO) 9001:2015 / AS9100D
File Formats Adobe Illustrator (AI)
Drawing Interchange Format, or Drawing Exchange Format (DXF)
Initial Graphics Exchange Specification (IGES), ANSI file format.
Inventor (IDW, IPT)
Joint Photographic Experts Group (JPG or JEPG)
Product Data Exchange using STEP (PDES), Standard for the Exchange of Product Model Data. A standard format for exchanging data between advanced CAD and CAM programs.
Portable Document Format (PDF)
Pro-E or Pro/Engineer (DRW, PRT, XPR)
Standard ACIS Text (SAT)
3D ACIS Model File
SolidEdge (DFT)
Standard for the Exchange of Product Model Data (STEP)
Tagged Image File Format (TIFF)
Unigraphics (PRT)