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Since the 1930’s SJS has been a facility that recycles. All millings are collected and shipped back to the vendors to be reclaimed. All oil used in the milling and turning is recycled and reused. Any exhaust from our machines is collected and filtered and purified. It’s just been a part of how we have done business for almost a century.

Services
S. Johnson & Sons is versatile. Our building is a one-stop toolbox – from prototyping to production. We offer complete design and engineering assistance. We can assist in Research & Development. We can review engineering plans and tolerance requirements. We can advise on materials.  All parts are inspected and thoroughly cleaned prior to shipment. And we do all this, always, while keeping our customer’s budget in mind.

Primary Capabilities

CNC TurningCNC Turning - (Computer Numerical Control)

Single & multi spindle screw machine production.

Honing, grinding, welding, broaching, bending, fabrication.

Welders are section 9, ASME Certified.

Complete tool making facility.

Tool room for work that needs hand refined craftsmanship.

CAD/CAM work flow – customers can supply electronic files from design programs in DXF, SMP file formats and more.

Scan to CAD – a photographic of a part can be scanned and create a file used for part programming. That file be edited and used to fabricate parts. 

Special Materials and Services – Precision parts can be fabricated from a variety of raw materials, including, brass, bronze and copper, aluminum, steel, stainless steel, and the more exotic aerospace alloys as well as many plastics.

Screw machineFinishing department – We have a complete assortment of hand tools, sanders, bead blasting, tumbling and vibratory polishers.

We stock a large assortment of fixtures, holding devices, indexing heads and related equipment, plus a complete tool room facility for making tool, dies and fixtures.

 
Additional Services
S. Johnson and Son also offers other services: solding, tumbling, grinding, anodizing, plating and polishing and assembly.
 
Special Materials
MaterialsPrecision parts can be fabricated from a variety of raw materials, including, brass, bronze and copper, aluminum, steel, stainless steel, and the more exotic aerospace alloys as well as many plastics.

S. Johnson and Sons also offers a complete design and engineering review and assistance and all parts are inspected and thoroughly cleaned prior to shipment.

A large assortment of fixtures, holding devices, indexing heads and related equipment is maintained plus a complete tool room facility for making tool, dies and fixtures.
 
WellTech Product line

WellTechWellTech is a wholly owned subsidiary of S. Johnson and Sons. Using CNC Turning and a process know as “gun drilling,” we create custom thermowells for many applications. We use standard materials like brass, stainless steel, and carbon steel or more exotic metals and high-performance alloys like Inconel, Hastelloy and titanium.

WellTech provides a wide variety of thermowells to many industries. Thermowells are used in industrial temperature measurement to provide isolation between a temperature sensor (often a thermocouple) and the environment whose temperature is to be measured. They are intrusive fittings and are subject to static and dynamic fluid forces. These forces govern fitting design. Vortex shedding is the dominant concern as it is capable of forcing the thermowell into flow-induced resonance and consequent fatigue failure. The latter is particularly significant at high fluid velocities.
 
WellTech currently uses the ASME Performance Test Code (PTC 19.3), which is the most widely used basis for thermowell design. It is currently being updated to cover a broader range of thermowell designs and fluid conditions.

Thermowell

 
Our most important product
Long and short, productions run are made to your exact specifications, at the right price. After three generations of producing quality screw machine parts, services are still S. Johnson and Sons' most important product.
 



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