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Secondary Services

Jessen's use of Lean cellular manufacturing, exceptional engineering, in-house tool making and efficient production all come together to provide Just-in-Time delivery for customers in a variety of industries. The types of materials handled include carbon and alloy steel, brass, bronze, copper, aluminum, plastic, stainless steel and most other exotic materials.

We meet our customers' needs... from prototype short production runs to high volume production quantities. Parts range from the basic to the most complex ones.

Services provided, but not limited to include: Broaching, Grinding, Honing, Conventional Milling, Reaming, Slotting, Thermal Deburring, EDM services, Stamping, Staking, Bending, Thread Rolling, Forming, Tapping, Vibratory Finishing, Machining of gear racks, and light assembly, etc.

We provide a complete part from start to finish. Contact Us if you have a need for one of these services outside our normal production.

Use the “Request Information” selection to contact us. Attach your design documentation along with your contact information for our Engineering Department to review and provide you with a quote.

 Machine Specifications:   Materials & Supporting Documentation:   General Specifications:   

ISO Certifications:

ISO 9001:2015 Certification
See the right hand navigator for "Downloads".

Tolerances the machines can produce repeatedly:

Honing: 0.0002 inch with a number 4 micron Surface Finish
Broaching: 0.0004 inch
Centerless Grinding: See Equipment List Below

Quantity of Parts Produced:

We can produce: prototype parts of one, to high volume production quantities.

Equipment List

Broaching Department:
(1) Miles Horizontal Hydraulic Broach
36" Stroke x 5 Ton/High Speed Operation

(1) Detroit Horizontal Hydraulic Broach
60" Stroke x 8 Ton/High Speed Operation
    Available Broaching Shapes are:
    "Sizes should be confirmed at inquiry"
    For Internal Profiles:
    • Keyway - Square Profiles
    • Splines and Keyways Profiles
    • "D" & Double "D" Profiles
    For External Profiles:
    • Slots
    • Gear & Tooth Profiles
    • Angles & Flat Profiles
Grinding Department:
(3) Cincinnati centerless grinders, Model # 2
(1) Sunnen hone, Model # 1804

Secondary Operations:
(2) Miles & Detroit horizontal hydraulic broach
(2) Snow automatic single and 2-spindle drilling/tapping machines
(8) Milwaukee production milling machines
(3) Dumore multi station drilling machines
(3) Hardinge super precision bench lathes
(1) Clausing lathe
(1) 12" Automatic Clausing bandsaw
(20) Drill presses
Various other equipment including marking presses, arbor presses, belt sanders, polishing and buffing machines, etc.

Parts Cleaning Equipment:
(1) Ramco parts wash/ rinse/ dry line system including ultrasonic cleaning
(1) McKenzie Floor Type Chip Separator
(1) Fourway 2 Stage parts washing system
(1) Empire abrasive air-blast deburring system


·  Cellular Manufacturing Drilling, Tapping & Reaming

·  Conventional Milling Services

·  Broaching Machine

·  Honing Services

·  Centerless Grinding

·  Assembly

·  Broaching

·  Grinding

·  Retainers

·  Conventional Milling

·  Drilling & Tapping

·  AMT qms


Long Term Quality Plan
(PDF, 115KB)

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