PORTABLE DRILLING MACHINE

PORTABLE DRILLING MACHINE

Pillar-Drill1

 Drilling is very easy process when we do drilling at our wrokshop with Radial or a Pillar drilling machine but if it is done at site on a larger components ?

We are designing and developing portable drilling machine which can be used for drilling and tapping. You can contact us for your requirement.

 

TECHNICAL SPECIFICATION CLICK HERE

Recommended Feeds of Various Diameter Drills 
Diameter of Drill - InchesFeed Inches per Revolution
Under 1/8.001 to .003
1/8 to 1/4.002 to .006
1/4 to 1/2.004 to .010
1/2 to 1 inch.007 to .015
1 inch and over.015 to .025
Typical Brinell Hardness Numbers for Metals
MaterialsHardness Number
Soft brass60
Mild Steel130
Annealed Chissel Steel235
White Cast Iron415
Nitrided Surface750
Recommended Speeds for Standard Materials with High Speed Steel Drills
MaterialRecommended speed (SFM)
Aluminum and its Alloys200-300
Brass and Bronze (Ordinary)150-300
Bronze (High Tensile)70-150
Die Casting (Zinc Base)300-400
Iron-Cast (Soft)75-125
   Cast (Medium Hard)50-100
   Hard Chilled44105
   Malleable80-90
Magnesium and its Alloys250-400
Monel Metal or High-Nickel Steel, Stainless Steel30-50
Plastics or Similar Materials100-300
Steel
 Mild .2 Carbon to .3 Carbon80-110
 Steel .4 Carbon to .5 Carbon70-80
 Tool 1.2 Carbon50-60
 Forgings40-50
 Alloy - 300 to 400 Brinell20-30
High Tensile (Heat Treated)(Consult your Material Supplier)

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