Sunnen Products Company

7910 Manchester Road

Saint Louis, MO 63143 US

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As Seen In Production Machining

DirectDex drill head

Sunnen Offers DirectDex line to Replace Sandvik Deep-Hole Drilling Tools
DirectDex line of drill heads and consumables are compatible and directly interchangeable with Sandvik’s CoroDrill 800 deep-hole drilling tools.

Sunnen Opens Manufacturing Plant in Monterrey, Mexico
The company recognizes that diversification of the labor pools from which it draws its highly skilled workforce needs to expand in order to meet the demands of its customers. 

Friction and Wear Reduction Technology for Honed Parts
Sunnen Products Company and Applied Nano Surfaces (ANS) sign a joint development program focused on ANS Triboconditioning process that reduces friction and wear on a variety of honed parts and components.

Sonny Leonard standing next to engine

Sonny Leonard Builds 2019 Sunnen Engine Charity Sweepstakes Prize
This year’s engine is 762 cubic inch and 1,400 hp and is even bigger than last year’s custom-built engine.

bore-sizing machine

Sunnen Relocates its BTA Heller Division
Sunnen is moving the BTA Heller division to St. Louis, Missouri, enabling the development of tooling, systems and processes for precision bore applications. 

bore gage

Sunnen PG Bore Gage Measures Range of Diameters
PMTS 2019: Sunnen's PG-series bore gages are especially useful for process control in a lean manufacturing environment.

PMTS Tech Talk

PMTS Tech Talks to Focus on Honing/Lapping Technology and Forging
The PMTS 2019 Tech Talk schedule includes presentations from Sunnen on improving bore shape, size control and surface finish with honing/lapping, and from Mueller Industries on the future in forging.

three people sitting at a table

Sunnen Establishes Direct Sales in Canada
Sunnen brings direct sales and service to Canada, providing an enhanced customer experience and full access to the company’s total bore solutions.

Sonny Leonard and a racing engine

Sunnen Breaks Its Fund-Raising Record with Engine Sweepstakes
Sunnen’s annual sweepstakes at the Performance Racing Industry trade show raised more than $100,000 for Victory Junction.

Mike Molnar, Andrea Coghlin and Gordon Baker

Sunnen Establishes Direct Sales Operations in Canada
Beginning January 1, all Canadian orders and service requests will be handled directly by Canadian sales representatives and technical personnel.

honing machines

Honing Machines Reduce Setup Times
The Sunnen SV-30 honing series is for engine cylinder blocks, liners and other parts.

lapping machine

SVL-2115 Lapping Machine Laps and Air Gages in One Setup
SVL-2115 automated lapping machine laps and air gages bores in one setup, freeing operator time and increasing part consistency.

Sunnen SHD machine

Single-Pass Skiving and Roller Burnishing for Hydraulic Cylinders
A newly introduced machine and tool combination from Sunnen streamlines skiving and roller burnishing by combining operations into a single stroke process on a single tool.

Homing oil at work

Why Honing Oils Matter
Like any metalworking process, honing relies on a systemized approach of components working in concert to deliver optimized results. Honing oil is one of these critical components, and this article examines the role it plays in a successful honing operation. 

Executives signing papers for acquisition

Sunnen Acquires BTA Heller to Expand Honing Expertise
Sunnen Products Co. has acquired BTA Heller Inc. with the aim of expanding Sunnen’s honing expertise to include tooling for initial hole creation and other complementary bore sizing and finishing processes. 

Sunnen Products Co. Acquires BTA Heller
  Sunnen Products Co. has acquired BTA Heller Inc., a U.S.-based manufacturer of deep hole tooling and systems for primary hole generation.  

Tour of Sunnen Emphasizes the Importance of Honing
A tour of Sunnen reinforces a long and fruitful one relationship with the company and emphasizes the importance of honing.

Remote Honing Analytics
Remote honing analytics with MTConnect-compliant machines makes manufacturing activity and system conditions transparent, enabling rapid implementation of operational and maintenance excellence.

Win a Racing Engine
Entrants of the Sunnen Engine Charity Sweepstakes have a chance to win a custom-tuned Mopar 6.4L Gen lll Hemi racing engine built by Nick Ferri, co-owner of Patterson Elite Performance.

Prototype to Production-Volume Honing
Here's a machine designed to meet a variety of honing needs. It features all-digital, servo-stroke honing for volumes ranging from prototype to high production.

Finding Significant Increases in Honing Accuracy
Single Stroke Honing is a single-pass process that sizes and finishes a bore with a series of progressively larger superabrasive tools adjusted to a preset diameter.

Product Categories of Sunnen Products Company

Automated System & Cells for Material Removal
Burnishing Tools (Roller)
Burnishing, Honing & Lapping Tools
Coolants, Cutting Fluids & Oils
Deburring Tools (Machine Tool Spindle-Mounted)
Diamond Tools
Drilling Machines, Deep Hole (Gundrilling)
Drills
Gages, Digital
Gages, Mechanical
Gear Honing Machines
Gear Lapping Machines
Grinding Machines, Internal Cylindrical
Honing & Lapping Tools
Honing Machines, Horizontal Spindle
Honing Machines, Multiple Spindles
Honing Machines, Vertical Spindle
Lapping Machines, External Cylindrical
Mandrels
Oil Filtration & Treatment
Superabrasive Machining Systems

Trade Names

BTA Heller
Sunnen