Radial Drilling Machine - AR 50

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ARSUN AR Series of Radial Drills offer rigidity, precision, and easiness in operation and are suitable for drilling, reaming and thread cutting operations

A radial drilling machine is a versatile and heavy-duty drilling solution designed to handle large and heavy workpieces with precision. Its defining feature is the adjustable radial arm, which allows the drill head to move both vertically and horizontally, making it ideal for drilling holes at varying positions without repositioning the workpiece. This flexibility saves time, increases efficiency, and ensures accuracy, especially for large components where movement is difficult.

Built with a rigid structure and robust components, radial drilling machines are widely used in industries that demand heavy machining, such as metal fabrication, shipbuilding, automotive, and construction equipment manufacturing. They are suitable for operations like drilling, boring, tapping, and reaming on large plates, castings, and structural assemblies. Their combination of power, accuracy, and ease of operation makes them an indispensable machine for workshops handling industrial-scale projects.

Technical Specification

Capacity
Maximum drilling dia. in steel
mm
50
Maximum drilling in cast iron
mm
60
Maximum thread cutting in steel
M
36
Maximum boring in steel
mm
100
Drilling Spindle
Taper in spindle
MT4
Maximum spindle travel
mm
300
Number of spindle speed
8
Spindle speed range
rpm
45 – 1125
Number of feed rates
6
Feed rate range
mm/rev
0.05 – 0.3
Working Range
Column sleeve diameter
300
Spindle reach from column face – min / max
mm
400 / 1250
Spindle nose to base – min / max
mm
390 / 1190
Drilling head travel on arm
mm
850
Arm vertical travel
mm
800
Electric Data
Power of spindle motor
kw
2.2
Power of arm lifting motor
kw
1.5
Size & Weight
Overall dimensions of the machine – l x w x h
mm
Machine weight
kg
2100

Key Features

  • Heavy Duty – 50 mm drilling in steel.
  • Wide range of 8 spindle speeds for drilling, tapping, reaming and boring operations.
  • Six power feeds: 0.05 to 0.3 mm per revolution.
  • Auto feed disengages at preset depth as well at too high drilling pressure.
  • Hardened and ground alloy steel gears fitted on spline shafts in main drive gearbox runs in an oil bath.
  • Hardened and precision ground spindle sleeve.
  • Double column construction for rigidity and effortless centering.
  • Arm and drill-head guide ways are precisely ground for minimum play and rigid clamping of drill-head with the arm.
  • Well adequately ribbed base-plate, inner column & arm for maximum rigidity and minimum deflection.
  • Testing Standard: As per IS: 2199.

Standard Equipments

  • Spindle Motor & Arm Lifting Motor
  • Box Table – 600 x 450 x 450mm size
  • Reduction Socket Morse 4/3, 3/2, 2/1
  • Coolant Pump
  • Built-in coolant tank
  • Machine Lamp
  • Electrical suitable for 415 V / 50 Hz / 3 Phase AC supply
  • Operation & Maintenance Manual

Working of Radial Drilling Machine

We Are Known For

  • Precision Engineering

    Built for accuracy and performance.

  • Robust Build Quality

    Made to last in tough industrial environments.

  • Customization & Versatility

    Tailored solutions for your exact needs.

  • Trusted Worldwide

    Delivered in many countries and counting

  • Cost-effective Technology

    High performance without the high price.

  • Expert Support and Trainingology

    We’re with you every step of the way.

Application of Radial Drilling Machine

Radial drilling machines are built for heavy, precise hole-making on large or awkward workpieces, thanks to their swiveling arm, adjustable head, and long reach.

In automotive and heavy equipment, radial drills machine engine blocks, gear housings, axle carriers, and chassis cross-members. Oil & gas fabricators rely on them to drill/tap API flanges, valve bodies, and heat-exchanger tube sheets.

 

Power generation shops use them for turbine casings, generator housings, and baseplates; shipyards for hull stiffeners, propeller hubs, and deck hardware; and rail for bogie frames and coupler components. In construction steelwork, they put precise holes in beams, columns, and connection plates, while mining and cement OEMs use them on crusher frames and mill housings.

Even aerospace MRO centers employ radial drills for jigs, fixtures, and oversized aluminum or titanium components where accurate, repeatable hole locations are critical.

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