Harvan Manufacturing has a dedicated staff of experienced machinists, engineers, certified welders and technicians, enabling us to produce a broad range of quality machined parts. Using our state-of-the-art Computer Numerical Control (CNC) machines and skilled operators, we offer precision machining services including:

  • Centerless grinding
  • Cylindrical grinding
  • Surface grinding
  • Lapping
  • Burnishing
  • Broaching
  • Hobbing
  • 2-, 4-, 5-, and 9-axis turning
  • Multi-axis horizontal milling
  • Multi-axis vertical milling

Precision Machining Capabilities at Harvan

At Harvan, we can create effective models and manufacture parts within tight tolerances thanks to the computer precision provided by our CNC equipment. Our fleet of equipment includes:

  • 2- and 4-axis CNC lathes
  • 5- and 9-axis CNC turning centers
  • Multi-axis vertical and horizontal CNC milling machines

Our custom machining services are all under one roof, eliminating the need for subcontractors. Our services include:

  • CNC Turning: The turning process spins the workpiece on its axis while the cutting tool remains stationary. With 17 varied CNC turning machines on site, we can create cylindrical parts and perform drilling, boring, parting, grooving, and threading. Our lathe and turning machines work quickly and continuously to produce parts within tight tolerances and require little operator interaction beyond set up.
  • CNC Milling: Milling keeps the workpiece stationary while tools rotate around it to perform operations. With four high-end CNC milling machines on site, we perform multi-axis horizontal milling on workpieces up to 3 ft3. We also provide multi-axis vertical milling. Given its large range of available tooling options, milling works best to create intricate designs that require versatility.
  • Grinding: We can conduct grinding operations using multiple grinding methods. Our surface grinders rotate the workpiece around a grinding wheel. Our cylindrical grinders hold the workpiece on a chuck and are used for rounded objects like camshafts. For high levels of precision, we use centerless grinders that hold the workpiece with no chuck.
  • Hobbing: In gear manufacturing, hobbers cut sprockets, gears, and splines. Our machines hold workpieces up to 12” swing and 60” in length.
  • Secondary Services: We can also conduct value-added finishing operations such as lapping, burnishing, and broaching.

CNC machining offers an ideal method for working with a broad range of material options, including common metals, exotic metals and alloys, precious metals, and food-grade plastics.

Custom Precision Machining

Why Turn to Harvan for Custom Machining?

With more than 49,000 square feet of manufacturing space, not to mention our skilled staff, we have the equipment necessary for precision machining ranging from simple parts to complex mechanical components with extremely tight tolerances. We guarantee tolerances within ± 0.001 inches for straightness, concentricity, and outer or inner diameter. We can also achieve ± 0.010-inch tolerances for material lengths over 90 inches.

We serve customers in a broad spectrum of industries, such as:

  • Aerospace
  • Agricultural
  • Forestry
  • Architectural
  • Transportation
  • Food
  • Medical
  • Military/defense
  • Nuclear
  • Oil and gas
  • Packaging/converting
  • Pulp
  • Industrial valve and controls (marine, petrochemical, chemical processing)
  • Off-road vehicles and heavy truck

For more than 30 years, Harvan has implemented and improved best practices for quality control. We are ISO 9001:2015 certified and are constantly reviewing, maintaining and upgrading our machinery and quality control equipment to ensure the highest possible levels of precision. For customers with immediate needs, we are equipped to offer rush services.

Contact us or request a quote for more information about our CNC machining services and how they can support your project or design.

See All of Our ServicesRequest a Quote


Custom Precision Machining - Specifications

Industry Focus

- Oil
- Gas
Industrial Valve & Controls
- Marine
- Petrochemical
- Chemical Processing
Off-road vehicles and Heavy Truck

Intended Applications

Construction equipment
Control Arms
High Speed Blowers
Hydraulic components
Machine components
Torsion Bars
Turbine components

Machining Processes

- Contour Turning
- Form Turning
- Taper Turning
Straight Turning
- External
- Internal
Internal Forming
Gear Hobbing
Thread Milling

Materials (Metals)

Alloy Steels
Bronze Alloys
Carbon Steel
Nickel Alloys
Stainless Steel
Stellite (Hardfacing)

Materials (Exotic & Precious Metals)


Materials (Plastic Polymers)

Plastics - Food Grade

Software Used

Epicor Vantage Shop Control System
Epicor Vista


Three-jaw chuck
Four-jaw chuck
In House Fixtures
Pallet System
- 2 Pallet Milling Machines

Equipment Capabilities

Bar Feed Reverse Engineering
CNC Control Capabilities

Secondary Services Offered

CAD/CAM Engineering Support
Dynamic Balancing (32" Dia max, single plane, 100lbmax, +/- 0.7 gm.cm)
Lapping, Burnishing, Cylindrical, and Centerless Grinding to Finish
Pretwisting and Polishing of Torsion Bars
Rapid Prototyping (3D printing)

Advantages of CNC Machining

Materials compatible
Short lead times
Tight tolerances


Straightness : ± 0.001 in
Concentricity: ± 0.001 in
Diameter (outer/inner): ± 0.001 in
Length (over 90 in): ± 0.010 in

Part Diameter (Lathe)

0.25 in to 26.0 in

Part Length

0.25 in to 59 in (120" thru chuck)
6.35 mm to 1499 mm

Part Width

0.25 in to 48 in
6.35 mm to 1219.2 mm

Part Height

0.25 in to 23 in
6.35 mm to 584.2 mm

Maximum Part Weight/Maximum Lifting Capacity

1000 lbs

Production Volume

1 unit to 5000 units per month
Prototype to Mid Volume

Lead Times Available

4 weeks to 16 weeks
Quoted on job by job basis, material dependant
Rush Services Available

Industry Standards

ANSI - American National Standards Institute
AS - Aerospace Industry Standard
ASME - American Society of Mechanical Engineers
ASTM - American Society for Testing and Materials
CGP (Certified) - Controlled Goods Program
CSA - Canadian Standards Association
CWB - Canadian Welding Bureau (Division 3 Certification)
DOT - Department of Transportation
FDA - Food And Drug Administration
ISO - International Organization for Standardization - 9001:2008
Mil-Spec - Military Specifications
RoHS - Restriction Of Hazardous Substances (Compliant)


Lights Out Manufacturing Available

File Formats

BMP - Bit Mapped Graphics
Catia (CATDrawing,CATPart)
DXF - Drawing Interchange Format, or Drawing Exchange Format
GIF - Graphics Interchange Format
IGES - Initial Graphics Exchange Specification, ANSI file format.
Inventor (IDW, IPT)
JPG or JEPG - Joint Photographic Experts Group
MasterCam (MDX, MC8, MC9, SET)
PDF - Portable Document Format
Pro-E or Pro/Engineer (DRW,PRT,XPR)
STEP - Standard for the Exchange of Product Model Data
TIFF - Tagged Image File Format

Equipment List

9 Axis CNC Turning Machines

1 - Mori Seiki MT 2000SZ, Lathe-Mill Combo, 20" swing x 40" centers, SMW barfeeder, 2005

9 & 5 Axis CNC Turning Machines

1 - Mori Seiki NT 4300DCG/1500SZ, Integrated Mill/Turn Centre, Max turning diameter 26", Max turned length 59", 2008

4 Axis CNC Turning Machines

  • 1 - Mori Seiki ZL-25B/1000, 14" swing x 40" centers, Fanuc 16TT-A Control, 2006
  • 1 - Mori Seiki ZL-25B/1000 14" swing x 40" centers, Fanuc 16TT-A Control, 1996
  • 1 - Mori Seiki ZL-25B/500 14" swing x 20" centers, Fanuc 16TT-A Control, 2002
  • 1 - Mori Seiki ZL-250/600 14" swing x 24" centers, Fanuc 18TT-A Control, 2004
  • 1 - Mori Seiki NL2500Y-700 14" swing x 27" centers, 2007
  • 1 - Mori Seiki NL2500Y-700 14" swing x 27" centers, 2005
  • 1 - Mori Seiki NL3000Y-700 16.5" swing x 27" centers, 2006
  • 1 - Mori Seiki NL1500-700 14" swing x 20" centers, 2006
  • 1 - Mori Seiki NL2500Y-700SY 14" swing x 27" centers, sub-spindle, 2008
  • 1 - Mori Seiki NL3000Y/1250, 16.5" swing x 49" centers, 2010

2 Axis CNC Turning Machines

  • Mori Seiki SL-4 16" swing x 18" centers, 2 Axis Fanuc 11T Control, 1995
  • Mori Seiki SL-4 16" swing x 18" centers, 2 Axis Fanuc 11T Control, 1993
  • Mori Seiki SL-15 12" swing x 18" centers, 2 Axis Fanuc 10T Control, 1988

CNC Milling Machines

  • Toyoda, FA-800, CAT50, 60 Tools, X=53”, Y=45”, Z=45”, Fanuc 31i-A Control, 2015
    • Mori Seiki NH5000 DCG/50, CAT50, 54 Tools, 28” X, 28” Y, 33” Z, Fanuc MSX701 Control, 2011
  • Toyoda FA-550 II, Horizontal CNC, Cat 50 Tooling up to 40 tools, X=29", Y=29", Z=23", Fanuc 16i-M Control, U-Axis Capable, 2003
  • Toyoda FA-550 II, Horizontal CNC Cat 50 Tooling up to 40 tools, X=29", Y=29", Z=23", Fanuc 16i-M Control, 1999
  • HAAS VF-4, Vertical CNC CAT 40 tooling up to 20 tools, X=48", Y=18", Z=18", 1994
  • Enshu VMC-430, Vertical CNC Cat40 Tooling up to 25 tools, X=43", Y=16", Z=16", 1990

Spline, Gear, and Broaching Equipment

  • 6 - Barber-Coleman 16/16 Hobbers 16" swing x 24" long cut length
  • 2 – Barber-Coleman 6/10 Hobbers 6" swing by 12" long cut length
  • Lees Bradner SH Hobber 12" swing and 60" long cut length
  • Fellows Gearshaper 7" swing by 2" face width
  • Wolf Gear Hobber 20" swing and 11" face width
  • Colonial Horizontal Broach 50 ton 72" pull length, with large inventory of broaches

Finishing Equipment

  • 1 - TOS Cylindrical Grinder
    8" Swing x 36" Centers
    16" Wheel Diameter
  • 1 - Cincinnati Centerless Grinder
    Diameter: 1/2" to 3 1/2"
    20" Wheel Diameter
  • 1 - Cogsdill Burnisher
    Diameter: 1.00"
  • 1 - TOS Engine Lathe
    19" Swing x 80" Centers
  • 1 - Hyd-Mech H12 Automatic Bandsaw, 2005
    Diameter: 12.00"

Quality Control Equipment

  • CMM Mitutoyo Crysta-Apex 910, 2003 using Cosmos 2.3R5 11th Edition, with enhanced gear measuring capabilities.
  • Hardness Tester
  • Mitutoyo PH-A14 Optical Comparator with QM-Data 200
  • Mitutoyo SJ-201 Surface Testers
  • Height Gauges up to 24.0000"
  • Dial and Digital Calipers up to 8.0000"
  • Dial Indicators
  • Outside Micrometers 0-1", 1-2", 2-3", 3-4"
  • Thread Micrometers
  • Blade Micrometers
  • Bowers Bore Gauges
  • Fluke Meters
  • Pin Gauges
  • Gauge Blocks
  • Go / No Go Ring Gauges
  • Go / No Go Thread Plug Gauges
  • Trigabore Gauges
  • Snap Gauges
  • Precision Levels
  • Measurements completed on surface plates
  • V-blocks
  • Magnetic Particle Wet Bench in Dark Booth, 2010

Value Added Services Equipment

Back to Top