Pentagon Back Gear Auto Feed Type Radial Drill Machine PRDA-40 Back Gear Auto
This radial drill machine supports precision hole-making for industrial fabrication. It provides a 40 mm drilling capacity, eight spindle speeds from 62 to 1980 RPM, and automatic power feed rates from 0.08 to 0.04 mm/rev. The 820x610 mm working surface secures medium to large components. • MT 4 spindle nose for quick tooling • 90-degree arm swivel for flexible reach • 1.5 HP motor with back-gear torque
Specifications
For: PRDA-40 Back Gear Auto- Drilling Capacity
- 40 MM
- Drill Head Spindle Nose
- MT 4
- Spindle Travel
- 220 MM
- No. of Spindle Speed
- 8
- Range of Spindle Speed
- 62-1980 RPM
- Range of Power Feed
- (2) 0.08-0.04 mm/rev
- Power
- 1.5 HP V-Belt B-46
- Base Plate LXWXH
- 380X300X300
- No. of T-Slots
- (4) 16
- Drilling Radius Max. & Min.
- 895/440
- Working Surface
- 820X610
- Distance Column To Spindle
- 810/360
- Dia. of Column
- 165 MM
- Swivel of Arm L & R Side
- 90 Degree
- Max. Drill Head Travel
- 450 MM
- Arm Elevating Motor
- 0.5 hp V-Belt A-23
Procurement & Setup Considerations
Q: How do I select the correct spindle speed for different materials? A: Match the 62 to 1980 RPM range – lower speeds for steel, higher for aluminum. Q: Is the automatic feed suitable for deep hole drilling? A: Yes, the 0.08 to 0.04 mm/rev feed range maintains consistent chip evacuation. Q: What maintenance is required for the radial arm mechanism? A: Regularly lubricate the arm rails and check tension settings for smooth elevation. Q: Can this machine handle tapping operations? A: The MT 4 spindle and back-gear torque support standard tapping procedures.
Robust Construction & Operational Reliability
- Cast iron base plate provides vibration damping during heavy cuts
- Precision-ground column and arm ensure long-term positional accuracy
- Sealed gearboxes protect internal components from metal chips and coolant
- Ergonomic control layout reduces operator error during high-volume runs
- Standardized T-slot patterns allow secure fixture mounting on the table
- Designed for continuous duty cycles in demanding workshop environments
Industrial Applications & Fabrication Use Cases
- Heavy machinery manufacturing requiring large-bore hole drilling
- Structural steel fabrication and beam assembly operations
- Automotive and truck chassis production with thick plate machining
- Shipbuilding and marine component drilling for hull structures
- Boiler and pressure vessel manufacturing with high-torque requirements
- General job shop environments needing versatile radial drilling
Flexible Reach & Quick Tooling Setup
- MT 4 spindle nose enables rapid tool changes and secure clamping
- 90-degree arm swivel – left and right for flexible reach around workpieces
- 820x610 mm working surface securely holds medium to large components
- Adjustable radial arm positions optimize positioning for complex layouts
- Smooth arm elevation reduces operator fatigue during repetitive tasks
- Consistent alignment minimizes setup time between machining operations
High-Performance Drilling & Feed Control
- Supports precision hole-making for industrial fabrication
- Delivers a maximum 40 mm drilling capacity across steel and alloys
- Features eight spindle speeds – 62 to 1980 RPM for versatile cutting
- Provides automatic power feed rates – 0.08 to 0.04 mm/rev for precision
- 1.5 HP motor with back-gear torque ensures consistent cutting force
- Maintains stable performance during continuous production cycles
More questions buyers ask
What is the drilling capacity of the Pentagon PRDA-40?
The Pentagon PRDA-40 has a maximum drilling capacity of 40 mm in steel.
Does the PRDA-40 feature automatic feed?
Yes, it features an automatic power feed with a range of 0.08 to 0.04 mm/rev for consistent drilling.
What is the spindle speed range for this radial drill?
The machine offers eight spindle speeds ranging from 62 to 1980 RPM.
What motor power does the PRDA-40 use?
It is equipped with a 1.5 HP main motor and a 0.5 HP arm elevating motor.
What type of spindle nose does this machine have?
It features an MT 4 spindle nose, suitable for standard industrial tooling.
Can the arm swivel on the PRDA-40?
Yes, the arm can swivel 90 degrees to the left and right for flexible positioning.
What industries is this radial drill suitable for?
It is ideal for heavy machinery manufacturing, structural steel fabrication, automotive chassis production, and shipbuilding.
What is the working surface area?
The working surface area is 820 x 610 mm, providing ample space for medium to large workpieces.
Is this machine suitable for continuous production?
Yes, it is designed for continuous duty cycles in demanding workshop environments.
What maintenance is required?
Regular lubrication of arm rails and checking tension settings for the elevation mechanism is recommended.
Who should choose the Pentagon PRDA-40?
The PRDA-40 is perfect for fabrication shops and industrial manufacturers requiring a reliable, high-torque radial drill for heavy-duty hole-making.
How does the PRDA-40 compare to standard bench drills?
Unlike bench drills, the PRDA-40 offers a radial arm for large workpieces, automatic feed for precision, and significantly higher torque for deep-hole drilling.
Is the PRDA-40 suitable for tapping?
Yes, the MT 4 spindle and back-gear torque support standard tapping procedures effectively.
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Full description
This radial drill machine supports precision hole-making for industrial fabrication. It provides a 40 mm drilling capacity, eight spindle speeds from 62 to 1980 RPM, and automatic power feed rates from 0.08 to 0.04 mm/rev. The 820x610 mm working surface secures medium to large components. • MT 4 spindle nose for quick tooling • 90-degree arm swivel for flexible reach • 1.5 HP motor with back-gear torque













