Honing machines are designed for finishing, high-precision and fine mechanical processing of internal surfaces of deep holes. The honing process ensures high geometric accuracy, minimal surface roughness and stable operational characteristics of parts.
The equipment is used for processing holes in pump housings, cylinder blocks of marine and industrial engines, as well as in other critical components.
Areas of application:
hydraulic industry
construction equipment
aviation industry
mechanical engineering
mining industry
production of molds and dies
energy and hydraulic structures
automotive industry
Technical capabilities:
honing diameter range: Ø20 – Ø800 mm
processing length: from 300 to 18,000 mm
Advantages of Dezhou Guanlu deep hole honing machines:
servo-driven expansion system provides precise feed and control of the processing size
possibility of internal and external lubrication and cooling to improve surface quality
achieving low roughness and high precision of holes
in-house production of honing heads from lightweight materials, which ensures process stability and efficient machining, especially for large diameters
Key advantages of the technology:
improvement of surface microgeometry
increased wear resistance of parts
precise adherence to hole geometry
optimization of the service life of components and mechanisms

















