Pump and Compressor Parts Manufacturing &
Precision Machining Services
Greno Industries delivers high-precision, contract CNC machining and manufacturing services for critical rotating equipment and turbomachinery. We specialize in engineering replacement parts and custom spares designed to withstand severe mechanical stresses, extreme pressures, and corrosive fluid environments. Partnering with global industrial OEMs, processing facilities, and MRO (Maintenance, Repair, and Overhaul) operations, our facility ensures absolute dimensional accuracy, precise dynamic balancing, and minimized lead times to support planned maintenance turnarounds and eliminate forced plant outages.
Severe-Service Metallurgies for High-Velocity Fluid & Gas Handling
In high-RPM rotating machinery, material integrity dictates operational uptime and guards against catastrophic equipment failure. To counteract the constant risks of cavitation, surface galling, abrasive slurry wear, and thermal expansion, Greno specializes in the precision milling, turning, and multi-axis machining of advanced, severe-service alloys:
Anti-Galling & High-Strength Steels: Nitronic 50 and Nitronic 60 for high-fatigue pump shafts requiring exceptional galling resistance and corrosion protection.
Corrosion-Resistant Alloys: Duplex 2205, Super Duplex 2507, and Hastelloy for impellers and fluid-end components exposed to aggressive chemical processing or saltwater.
High-Temperature Superalloys: Inconel 718 and Monel K-500 for high-pressure compressor components operating under intense thermal cycles.
Wear-Resistant Overlays: Experience machining components with specialized Stellite and Colmonoy hardfacing overlays to drastically extend the service life of high-wear surfaces.
Machined Rotating Equipment Components Catalog
Our advanced CNC manufacturing capabilities deliver tight-tolerance performance across distinct mechanical systems, ensuring exact interchangeability with OEM specifications.
Centrifugal & Positive Displacement Pump Components
Precision-machined parts engineered to optimize hydraulic efficiency, maintain strict clearances, and resist fluid erosion.
Pump Shafts & Sleeves: Long-axis, precision-ground shafts machined to micro-inch tolerances to ensure perfect concentricity and minimize vibration.
Impellers & Inducers: Multi-axis CNC milled impellers, fully prepared for dynamic balancing to maximize fluid transfer efficiency and prevent cavitation.
Wear Rings & Bushings: Machined to exact dimensional tolerances to maintain optimal running clearances and reduce parasitic fluid recirculation.
Pump Volutes, Casings & Stuffing Boxes: Heavy-duty structural castings machined to securely house internal rotating assemblies under high system pressures.
Reciprocating, Rotary & Centrifugal Compressor Parts
High-integrity hardware manufactured to withstand violent mechanical cycling and high-velocity gas compression.
Pistons & Connecting Rods: Lightweight yet robust components machined to exact weight-matching tolerances to ensure balanced mechanical dynamics.
Crossheads & Guide Bushings: Precision-milled alignment hardware engineered to eliminate angular rod stress.
Cylinder Liners & Glands: Bored and honed to ultra-smooth surface finishes to reduce friction and optimize compressor ring life.
Valve Plates, Seats & Discs: Tight-tolerance internal valve components machined to ensure instant, zero-leak sealing under rapid pressure cycling.
Dynamic Sealing & Specialty Turbomachinery Hardware
Custom sealing profiles and high-tensile fastening systems vital for containment and high-vibration structural integrity.
Labyrinth & Honeycomb Seals: Intricate, multi-groove sealing profiles precision-machined to minimize process gas leakage and optimize pressure ratios.
Mechanical Seal Housings & Glands: Robust, corrosion-resistant enclosures machined to protect sensitive face seals from shaft deflection.
High-Tensile Casing Bolts & Studs: Custom 12-point bolts, heavy hex studs, and coupling hardware machined from heat-treated alloys for secure pressure-boundary closures.
Rigorous Quality Control & Dynamic Precision
Because rotating equipment demands perfection, Greno operates under a strict ISO 9001:2015 compliant quality management system. Our capabilities include full coordinate measuring machine (CMM) dimensional inspection, material non-destructive testing (NDT), and complete material traceability backed by Material Test Reports (MTRs). We ensure that every shaft, impeller, and internal component meets or exceeds the rigorous standards required by the power generation, chemical processing, and water management industries.
Expedite Your Rotating Equipment RFQ
Minimize your critical path timeline during your next planned turnaround. Upload your technical prints, solid models, or sample parts for reverse engineering today. Our engineering and estimating team provides rapid turnarounds on all standard and custom Request for Quotes (RFQs).

