Radial Drilling Machines
Ajax has been selling radial drilling machines since the 1950’s so we are very experienced in what makes a good machine. With lots of options and sizes we are the one stop shop.
Main castings of the Ajax AJRD radial arm drilling machines are high quality cast iron, reinforced by a system of crossed ribs and boxes. All friction surfaces are hardened to 200-220HB.
The bearing system allows smooth rotation of the column and avoids angular deflection of the spindle when clamping is activated. A semi automatic lubrication system provides lubrication for both column and elevating screw.
Our spindles and quill are manufactured from special forged steel and are constructed to reduce vibration to a minimum. Then the quill is machined and the teeth cut from the solid and ground to ensure accuracy. Then the spindle is mounted in double row roller and thrust bearings. It is then secured by an anti-vibration lock-nut at the top of the spindle. The spindle and quill assembly are fitted with a counter-weight to give smooth feeding. Also the quill has an overtravel limit feature.
Hydraulic clamping is standard on the range apart from the 38 and 50. Clamping of the head, column and arm is actuated by a hydraulic clamps operated by push buttons. The hydraulic system being divided to allow the operator to move the arm vertically without affecting the spindle alignment and similarly unlock the head or column independently.
The headstock is a totally enclosed including the gearing for the spindle. The feed mechanism also provides a depth stop. With all the gears made of nickel chrome steel, hardened and ground and lubricated by an automatic lubrication pump.
The electrical control panel is located on the back of the arm in compliance with the CE norm.
As standard coolant equipment is supplied, and consists of a pump complete with piping to the drill point and return to the sump.