Precision machining: turning up to 6,000 mm, milling, hardening, grinding and finishing of demanding metal parts

BüMi Präzisionszerspanung GmbH & Co. KG

GevelsbergNew on Amplifa

approx. 75Employees

more than 98 yearsSuccessful development (website statement)

up to 6,000 mmTurning length

About BüMi

BüMi Präzisionszerspanung is a specialist in the machining of custom workpieces and assemblies made from almost all metallic materials. Production is carried out according to drawing, standard or sample: CNC-controlled turning up to 6,000 millimeters in length, milling in horizontal and vertical versions, as well as hardening, straightening, grinding and finishing. The company, with around 75 employees, produces in small to large quantities and in all desired shapes. The components are used in wind turbines and turbines, pump stations and large gearboxes, rail vehicles and ships, as well as in presses, packaging machines and rolling stands for sheet metal processing. The company is based in Gevelsberg and, according to its own statement, can look back on a development of more than 98 years.

Site: Gevelsberg
Processes: CNC turning, Milling (horizontal and vertical), Hardening/straightening, Grinding, Finishing, Machining according to drawing, standard or sample, CNC turning up to 6,000 mm, Hardening and straightening
Materials: metallic materials (almost all), Metallic materials (almost all), CNC turning, Milling (horizontal and vertical), Hardening/straightening, Grinding/finishing
Employees: approx. 75
Industries: Mechanical engineering, Engines & gearboxes / drive technology, Plant engineering, Commercial vehicles, Rail technology, Shipbuilding

01
Requirement clarification based on drawing, standard or sample
02
CNC turning up to 6,000 mm
03
Milling (horizontal and vertical)
04
Hardening and straightening
05
Grinding and finishing
06
Quality inspection and delivery

Materials & Processes

Metall

Metallic materials (almost all)

Machining of demanding parts made from almost all metallic materials according to drawing, standard or sample.

DRE

CNC turning

CNC-controlled turning of workpieces up to 6,000 millimeters in length.

FRA

Milling (horizontal and vertical)

Horizontal and vertical milling depending on the requirement.

HÄR

Hardening/straightening

Powerful and precise hardening and straightening of the workpieces.

SCHL

Grinding/finishing

Precision-fit grinding and finishing of the highest quality.

Locations

Gevelsberg

Main site / Production

Lot size: Small to large quantities
Materials: Metallic materials

CNC lathes (up to 6,000 mm)
Milling machines (horizontal and vertical)
Hardening and straightening systems
Grinding machines

Components

**Turbine shafts**CNC turning · Wind power/turbines

Inside the production

Industries

Mechanical engineeringEngines & gearboxes / drive technologyPlant engineeringCommercial vehiclesRail technologyShipbuildingWind turbines and turbinesPump stations and large gearboxesPresses, packaging machines, rolling stands

Processes & technical limits

Processes	Tolerance	Max. part	Weight	Lot size	Materials
CNC turningMachining	–	6,000 millimeters	–	small quantities – large quantities	metallic materials
Milling (horizontal and vertical)Machining	–	–	–	–	metallic materials
Hardening/straighteningHeat treatment	–	–	–	–	metallic materials
GrindingMachining	–	–	–	–	metallic materials
FinishingSurface	–	–	–	–	metallic materials

Additional services

Machining according to drawing, standard or sampleCNC turning up to 6,000 mmMilling (horizontal and vertical)Hardening and straighteningGrinding and finishingProduction in small to large quantities

History

Successful development over more than 98 years (website statement; founding year not explicitly mentioned)
2024
BüMi is represented on YouTube with a company video