Reaming of some holes

Some holes needed to be reamed because they where not in line.Reaming of some holes because they where not in line.The available space measured from the shaftdiameter to the centre of the hole was minimum. So the customer could not machine this on its stationary machine..

Long extension plate for the milling spindle


Because of the extreem depth we had to machine, we needed to make an extension plate for the milling spindle. On this extension plate the milling spindle was mounted so we could machine at a depth of more than one (1) meter. Is was not easy because during machining at some points there was a […]

CMT Welded of surfaces and diameters

CMT Welded surface

Quality of the welding is perfect and after finishing the temparature is not hot at all. So what the supllier tells:

CNC Controlled circular milling of two Pump housings


Setting up of the CNC Controlled circular milling machine for on-site machining of two Pump housings At two pump housings some existing surfaces and diameters where damaged. The customer wants them to machined smaller in diameter, all surfaces deeper so al damages are gone. After pre-machining all surfaces to be cladded up by CMT (Cold […]

CNC Controlled thread milling tool

Gerben van Leeuwen investment

Machined the thread ( 1 out of 240) by way of CNC Controlled milling. Tools are cutting perfectly, no vibrations, no problems during cutting thru the weld.

Finishing of 240 CNC Controlled machined threaded holes.

Gerben van Leeuwen investment

All 240 Holes, on-site machined by way CNC Controlled with 3″ 5/16 – 12UN thread. All machined within the contractual deadline.

All 240 holes according to specifications

Gerben van Leeuwen investment All 240 holes

All within tolerance, all 100% according to customers specifications. Calibre which has been provided by customer fit perfectly in every machine hole

Surfaces at a scrap yard

Gerben van Leeuwen investment Surfaces at a scrap yard

On-site machining of the surfaces on a cutting press at a scrap yard

Final measurement after machining

Gerben van Leeuwen investment final measurement after machining

After final machining all holes, and there positions coordinates and radii are measured with a renishaw measurement probe. All machined within 0.02mm, concentricity, cilindricity, roundness and squareness. All documented in a measuring protocol

Circular CNC controlled milling of a flange of 1250 mm

Gerben van Leeuwen investment Circular CNC controlled

Because the flanges are all damaged, the customer required to machine the surface to a minimum. So to get an extreem smooth surface, a special lightweigth aluminium balanced milling was used. Taking 5 out of 10 tips out, and a minimum feedrate per/min resolved in perfect surface.