Varinelli

Multi-Spindle Tube Sheet Drilling Machine

High-Precision CNC Drilling for Heat Exchanger Tube Support Plates

Our multi-spindle CNC drilling machines are engineered specifically for heat exchanger tube support plate machining (TSP), delivering high throughput, extreme rigidity, and repeatable precision for large-diameter plates.
Designed for high-demand energy and heavy industrial applications, including nuclear and petrochemical manufacturing, this system significantly reduces machining time compared to conventional single-spindle drilling solutions.

Engineered for Tube Support Plate Manufacturing

The purposes of multi-spindle tube sheet drilling machine:

Heat exchanger tube sheet machining
Tube support plate drilling
High-density hole patterns
Large diameter plate production
Multi-hole precision drilling
With simultaneous multi-spindle operation, multiple holes are drilled in parallel, dramatically reducing production cycle time.
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Technical Specifications

Heavy Duty Configuration

  • Up to 27 spindles
  • Drive motor: 160kW
  • Drilling area: 7000 × 4500 mm
  • Plate thickness capacity: 150 mm
  • Max drill diameter: 38 mm
  • Spindle speed: 16-850 RPM
  • Spindle spacing : 128 mm/MIN. – 160 mm/MAX.
  • CNC control: Siemens 840D

Compact Configuration

  • 6 spindles each driven by a 23kW motor
  • Drilling area: 5000 × 5000 mm
  • Plate thickness capacity: 250 mm
  • Max drill diameter: 115 mm
  • Spindle speed: up to 3200 RPM
  • Spindle spacing : 270 mm
  • CNC control: Siemens 840D

(Custom configurations available upon request.)

Structural Design for Maximum Rigidity

Zero-Backlash X-Axis System

Main gantry transverse with master/slave rack & pinion drive system ensures synchronized motion with zero backlash.

Reinforced Y-Axis Support

Double transverse support system designed to absorb drilling reaction forces while maintaining positional accuracy.

High-Force Z-Axis Transmission

Ball screw drive system with torque motor ensures stable axial thrust management — up to 2500 kg drilling force per spindle.
multi spindle drilling machine burlington

Why Multi-Spindle Drilling?

Compared to traditional single-spindle CNC drilling machines:

Reduce tube sheet machining time

Increase production output

Improve hole positioning repeatability
Minimize thermal distortion

Ideal for automated tube sheet drilling and boring lines

Integrated Production Line Capability

This machine can be integrated within a complete:

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Heat exchanger tube sheet production line
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Tube sheet and baffle plate machining equipment system
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Tube support plate drilling and broaching workflow

Related Solutions

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Tube Support Plate Multi-hole Broaching Machines
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Plate Buffing and Deburring Systems
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Multi-Hole Internal Broaching Machines

Request Technical Consultation

Contact us to discuss your heat exchanger drilling requirements and production objectives.

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