COLLINS MACHINE WORKS
PORTSMOUTH, VACollins Machine Works has solved the largest and most complex industrial machining and fabrication challenges for clients around the globe since 1960. Our ceaseless commitment to quality, coupled with talent and innovative technology, positions us to deliver the best product and service to each and every customer. Whether on-site or in-shop, Collins Machine Works will do the job right, every time, as a heavy industrial manufacturing and precision machining partner for the United States naval defense sector.
5-axis machiningAlign BoringBalancing of Assemblies and Single-Piece ComponentsBolt Removal and DrillingBore WeldingBoring/Honing/Splitting SleevesBrake Band Manufacturing and RepairsCarl Zeiss CMMCasing RepairsCertified ABS Marine Shafting Repair FacilityCertified NAVSEA Propulsion Shaft Repair FacilityCNC machiningCNC Programmming from Customer DrawingsCNC Turning and MillingCoal Mill RepairsCold PeeningCrane capacity 60 tonsDredging Equipment RepairsDynamic BalancingDynamic balancing up to 28 inch shaft diametersElectroslag Welding (ESS)Electroslag welding process for submarine shaftingEmergency On-Board RepairsEngineeringEpoxy Coatings for Erosion and Corrosion ResistanceFabricationFaro Arm Reverse EngineeringFinal Machining of Repaired AreasFit-Up Check of Shafts to Propellers and CouplingsFlange FacingFlange facing with diameters exceeding 100 inchGas Metal Arc Welding (GMAW)Gas Tungsten Arc Welding (GTAW)Gearbox Overhaul and RepairGrinders with 93 inch grinding surfaceHeat treatmentHoningHot SpottingInstallation of Complex Preservative Coating SystemsInstallation of Shaft-Bearing SleevesLaser AlignmentsLathe capacity 70 tonsLathes with 12-120 inch swing and up to 80 foot centersLine BoringLine boring bars to machine bores up to 24 feet long and 1.25 to 49.5 inch diameterLine Shaft RepairsManual machiningMilling and Keyway CuttingMillwright Outage ServicesMillwright Turnkey ServiceOn-Site MachiningPlaner mills with up to a 20 foot strokePneumatic Shot PeeningPortable CMM InspectionPortable mills machining surfaces up to 120 inches long on one setupPrecision grindingProduction ManagementPROJECT MANAGEMENTPump OverhaulsQuality AssuranceRefurbishment of Rotating Coupling CoversReverse engineeringRoller Assembly OverhaulRotary Flap PeeningRotatable Pool ServicesShaft Bore Cleaning and PreservationShaft Bore Visual Inspection and RepairShielded Metal Arc Welding (SMAW)Shot PeeningSingle-Piece Sleeve InstallationSplit-Sleeve InstallationStraighteningStress RelievingSubmerged Arc Welding process for submarine shaftingSubmerged Arc Welding (SAW)Supply Chain ManagementSwing Drum Repairs and ManufacturingSwing rotor assemblies up to 15 feet and 100,000 lbsWeld BuildupWeldingWelding Tracks