Tube Expander

Vertical Mechanical Expander

 

EXP

Accuracy and precision during tube entry and exit ensure that tubes are expanded uniformly, and fins remain unharmed. Higher production rates are made possible by the short cycle time. The coil lift and eject systems assist in operator safety and ergonomics. Oak Expanders come in all sizes, from single tube expanders to large horizontal expanders for your largest coils. We offer many options to customize your expander to your specific production requirements.

The Vertical Mechanical Expander is designed specifically for the production of high-quality heat exchanger coils. Its short cycle time allows for both mass production environments and flexible, short run situations. The Vertical Expander can be customized in many ways. A standard expander package may include the following: Compact Design, Standard Lift with Fixed Enclosures, Self-Storing Backplates, Rod Short-Out System, Final Expander Support Mechanism, Coil Eject, Hydraulic Cooling System (Oil to Air).

 

 

 

Machine Specifications

 

coil_lifting_mechanism
Coil Lifting Mechanism
backplate_storage
Back Plate Storage
PRODUCTION

36” Coil Length: 15 seconds

120” Coil Length: 35 seconds
* Excludes Lift / Table Operations or Loading/Unloading
FOOTPRINT
8' to 10 ' Wide, 8' to 22' Deep, Up to 38' Tall
WEIGHT
Up to 40 tons
Foundation information supplied upon request
POWER
380 - 415 V, 50 Hz   OR 440 - 500 V, 60 Hz
100 Amp Service Minimum
Air: 8 CFM @ 80 - 100 PSI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Standard Machine Components, Machine Capabilities, and Additional Options available.

Standard Machine Components

Compact Vertical Expander Design Minimizes vertical expander overall height.

 
Standard Lift Assembly with Fixed Enclosures

Allows coils presented in the horizontal plane to the mechanical expander to be raised to a vertical position for expansion

 
Self-Storing Back Plates

 
Vertical Expander Rod Short-Out System Protects the mechanical expander during the expansion process.

 
Final Expander Support Mechanism

 

 
Vertical Expander Coil Eject

Designed to push the coil out of the receivers after the expansion cycle is complete.

 
Hydraulic System Cooling (Oil to Air)

Prevents oil decomposition and maintains control of critical hydraulic machine actuators during the expansion process.

Machine Capabilities

Material

.157" to " OD
Straight or Hairpin
Cu, al, SS, Steel, CuNi

Additional Options

We offer an extensive line of options to meet your specific fin production needs, including:
Hand Loaded Coil Enclosure Allows quick and efficient loading of coils into the expander.

 
Standard or Heavy Duty Lift Assembly with Fixed or Door Coil Enclosures Allows coils presented in the horizontal plane to the mechanical expander to be raised to a vertical position for expansion.

 
Self-Storing Back Plates w/ Powered Height Positioning Automatically selects the appropriate back plate arrangement in the expander to process a coil. No manual adjustment necessary.

 
1+1 Coil Expansion options For the production of coils that are to be formed or bent into various shapes in a later process.

 
Vertical Expander Automatic Coil Height Control Eliminates manual setup for coil height.

 
Vertical Expander Rod Short-Out System Protects the mechanical expander during the expansion process. 

     
    Vertical Expander Automatic Rod Selection Offers a much safer and time-saving selection of expander rods, tips, and bullets as required by the heat exchanger pattern.

     
    Vertical Expander Quick Change Receiver Significantly reduces receiver removal and installation time.

     
    Vertical Expander Quick Change Expander Bullet Coupling Decreases tooling change time.

     
    Hydraulic System Cooling (Oil to Water or Oil to Air) Prevents oil decomposition and maintains control of critical hydraulic machine actuators during the expansion process.

     
    Hydraulic System Heater Raises the initial temperature of hydraulic system of the vertical expander to operating level.

     
    Air Conditioning for Electrical Enclosures Maintains proper expander operating temperature inside electrical enclosures.

     
    Vertical Expander Auto Row Adjust for Lift Automatically positions the coil lift for correct number of rows.

     
    Backplate / Frontplate Sync Mechanism Allows the enclosure plates to lower with the expansion of the coil, as well as provides more support and better coil alignment.

     
    Vertical Expander Coil Collapse Detector Detects a coil collapsing during expansion, helping to prevent damage to expander rods and other components of the vertical expander.

     
    Vertical Expander Stripper Plate Camera Gives the operator the ability to view the top of the heat exchanger through a monitor at floor level.