CNC Machining for Agricultural Machinery & Heavy Equipment
Resolute Precision Manufacturing produces precision CNC machined components for agricultural machinery and heavy equipment manufacturers — the OEMs that build tractors, combines, planters, excavators, and loaders. High-volume bar-fed turning, heavy-duty milling from castings and forgings, and value-added services from heat treating through coating — all from our ISO 9001 certified facility in Angola, Indiana.yoast_breadcrumb]
What Agriculture and Heavy Equipment Machining Requires
Agricultural and heavy equipment components face demanding service conditions: high cyclic loads, shock loading, abrasive wear from soil and debris, chemical exposure from fertilizers and hydraulic fluids, and extended service intervals without maintenance. Components must be produced to the dimensional specifications of the drawing while being manufactured in the quantities and at the per-part cost that equipment price points allow.
Resolute Precision’s bar-fed turning capability and horizontal milling from castings and forgings addresses both requirements. Our automated turning cells produce high-volume cylindrical components efficiently and consistently. Our horizontal machining centers machine multi-face forgings and castings — the common input form for heavy structural components — with the accuracy and surface finish that assembly and service life require.
Agricultural and Heavy Equipment Materials
We machine all materials common in agricultural and heavy equipment applications:
- Carbon steel (1018, 1045) — high-volume production components for structural and drive applications
- Alloy steel (4140, 4340, 8620) — hardened components for high-load drivetrain and chassis applications
- Gray and ductile iron — machined from castings for housing, differential, and structural components
- Aluminum (6061) — lightweight components for cab hardware, covers, and non-structural applications
- Brass and bronze — bushings, fittings, and wear components for lubricated joint applications
- Engineering plastics — Delrin and nylon for non-metallic wear pads, bushings, and guide components
Specifications at a Glance
Turning | Bar-fed turning to 3.2″ diameter for production volumes; chucked turning to 25.5″ diameter |
Milling | Horizontal 4th-axis for casting and forging machining; vertical 3–5 axis for precision components |
Castings & Forgings | Horizontal machining for multi-face machining of gray iron, ductile iron, and steel forgings |
Heat Treating | Q&T, carburize, nitride coordinated through outside operations — common for drive components |
Volume | Production quantities from 1,000 to 500,000+ parts per year |
Materials | Carbon steel, alloy steel, gray/ductile iron, aluminum, brass, bronze, engineering plastics |
Inventory | Blanket orders and JIT programs for seasonal production schedules |
Certifications | ISO 9001:2015 |
Agricultural and Heavy Equipment Component Types
Resolute Precision produces precision machined components across multiple agricultural and heavy equipment systems:
- Drivetrain components — precision shafts, gears, and coupling components for PTO and drive systems
- Hydraulic system components — cylinder rods, fittings, valve spools, and manifolds for equipment hydraulics
- Tillage and planting components — wear-resistant steel and iron components for soil-contact applications
- Loader and bucket components — precision pins, bushings, and pivot hardware for loader attachments
- Engine and powertrain hardware — custom fasteners, studs, and threaded inserts for engine assemblies
- Cab and structural hardware — precision machined brackets, pins, and fittings for cab and frame assemblies
Frequently Asked Questions
Q: Can RPM machine from castings as well as bar stock?
A: Yes. Our horizontal machining centers are specifically configured for machining castings — gray iron, ductile iron, and steel castings — that require precision OD, ID, and face machining on multiple surfaces. Castings are common input forms for agricultural equipment housings and structural components..
Q: Does RPM have experience with seasonal production schedules?
A: Yes. Agricultural equipment manufacturing has a pronounced seasonal production schedule. We accommodate seasonal demand variation through blanket order programs with flexible release scheduling — maintaining production capacity commitments while allowing you to adjust release quantities against actual build schedules.
Q: Can RPM produce high-wear components that require post-machine heat treatment?
A: Yes. Many agricultural drivetrain and tillage components are carburized or through-hardened after machining. We machine the component, coordinate heat treating, and where required coordinate post-heat-treat grinding to final dimension — delivering a fully finished, heat-treated component from a single purchase order.
Q: What is RPM's experience with gray and ductile iron machining?
A: We machine gray iron, ductile iron, and compacted graphite iron (CGI) castings on our horizontal machining centers. Cast iron requires specific tooling — carbide inserts and appropriate speeds and feeds — to manage the abrasive wear that cast iron inflicts on tooling. Our machinists are experienced with these materials.