Precision engineered.
Built to perform.
Advanced engineering and integrated precision manufacturing for complex components and assemblies — from Rock Valley, Iowa, since 1947.
More capability. More control.
TCS runs more than 32 manufacturing processes fully integrated in one Rock Valley facility — so complex parts are completed under one roof instead of shipped between outside suppliers.
01
CNC Machining
Milling, turning, multi-spindle and rotary transfer machining for high-precision components.
02
Grinding
Centerless, internal, surface, and plunge & angle CNC grinding for tight tolerances and finish.
03
Deep Hole Drilling
Precision deep-bore drilling for shafts, spindles, and long-length components.
04
Heat Treating
In-house heat treating, carburizing, annealing and tempering to engineer material performance.
05
Friction Welding
Solid-state joining for dissimilar materials and complex multi-piece components.
06
HVOF
High Velocity Thermal Spray coatings that add wear resistance without changing part geometry.
Engineering before production.
TCS's internal engineering staff uses AutoCAD and Mastercam® to simulate tool paths and sequences for optimum efficiency and accuracy — before the first chip is cut.
Concept
Application requirements, tolerances, and manufacturing constraints defined with the customer.
CAD
Component design and modeling in AutoCAD.
CAM
Tool paths and machining sequences programmed in Mastercam®.
Simulation
Strategies simulated for accuracy and efficiency before cutting begins.
Production
Value-engineered parts run across TCS's integrated manufacturing floor.
32+ integrated processes.
Every manufacturing process a complex part needs — more than 32 of them — is fully integrated in-house. That lowers cost, shortens lead time, and keeps quality under one roof instead of scattered across outside suppliers.
View All CapabilitiesComplex parts are our specialty.
Complex components can be fully machined within TCS's Rock Valley facility, eliminating the cost and risk of sending parts to another supplier for completion.
Pairing an in-house engineering staff with 32+ integrated processes means TCS can take on components that require multiple operations — machining, grinding, heat treating, coating, and assembly — as a single accountable build, engineered for manufacturability from the first drawing.
See how engineering drives it
Precision tolerance · tool-path detail
Industries we serve.
TCS supplies precision-machined components and assemblies to a diverse, growing base of customers across seven core markets.
Agriculture
Tractors, combines, forage & tillage equipment
Transportation
Truck, passenger car & bus components
Industrial & Construction
Hydraulic pumps, motors, transmissions
Commercial
Pneumatic & hand tools, lawn & garden
Recreation
Marine, ATV, motorcycle & powersports
Energy
Oil & gas and alternative energy components
Military / Ordnance
Ammunition, projectiles & accessories
Precision you can measure.
As an ISO 9001:2015 registered manufacturer, TCS is committed to quality and continuous improvement — maximizing human, technical, manufacturing and financial resources to exceed customer expectations.
View Our Quality System