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  • About Tractive
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    • Company background
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      • HF-power packs
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    • Wall saws
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        • Overview technical data HF-wall saws
        • Pentruder 8-20iQ
        • Pentruder 8-20HF
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        • Features
          • Double cooling system HF-motor
          • Speed reduction gearbox
          • 400Hz technology
          • Quick release coupling for HF-motor
          • Pentruder autofeed
          • Variable spindle speed
          • Multi step gearbox
          • Slip clutch for HF-motor
          • Slip clutch for arm rotation transmission
          • Efficient water supply to blade
          • Optimal roller alignment
          • Low wear rollers
          • Well protected travel and feed motors
          • User friendly track system
          • Quick disconnect coupling for blade
          • Highest quality materials
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        • Pentruder 8-20
        • Pentruder 6-16
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        • Pentruder CBK hyd
    • Accessories
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    • Info on HF
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  • Power Packs
  • Wall saws
    • HF-wall saws
      • Overview technical data HF-wall saws
      • Pentruder 8-20iQ
      • Pentruder 8-20HF
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      • Pentruder 6-8HF
      • Features
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  • HF-System overview
  • Info on HF
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Pentruder 8-20HF

The Pentruder 8-20HF offers real High Frequency power from an extremely powerful specially designed 22 or 27 kW HF-motor. This is no hobby tool but a carefully designed professional tool. It will help you do the most demanding jobs even more efficiently.

  • Features

  • Technical data

  • System

  • Accessories

  •  
         
         

Reliable 400 Hz technology

 

Pentruder autofeed system

 

Infinitely variable spindle speeds

We have chosen to work with 400 Hz as our base frequency. This gives a very reliable motor, the bearings will live longer and there is no need for frequent maintenance.
read more »
  Thanks to the exclusive Pentruder autofeed system, the high frequency machinery will always work at maximum power and the cutting will be smooth and uninterrupted.
read more »
  Infinitely variable spindle speeds in every gear for all HF-wall saws. This is varied electronically with the potentiometer.
read more »

 

         
              

Multi step gearbox for highest torque

 

Double cooling system for HF-motor

 

Slip clutch protects the HF-motor

Independent of what size blade is needed, the 2-speed respectively 4-speed gearbox allows the Pentruder wall saw to work with a remarkably high torque at all spindle speeds.
read more »
 
  The double cooling system for the HF-motor gives sustained reliable power and high efficiency.
read more »
  Main HF-motor has slip clutch for protection of the gear train if a blade is jammed.
read more »
         
             

Slip clutch protects the arm rotation transmission

 

Speed reduction gearbox

 

Efficient water supply to blade

The arm rotation transmission is protected by a slip clutch if a blade is jammed.
read more »
  Oil lubricated speed reduction gearbox with precision ground helical gears.
read more »
  Efficient water supply to blade central through blade flange, even for flush cutting blades.
read more »
         
           

Roller arrangement gives optimal force distribution

 

Low wear rollers

 

Well protected travel and feed motors

The guide rollers on the saw head are aligned above each other, in the same plane as for the cut. This provides the highest levels of safety, stability and precision of cut.
read more >>
  Conical self cleaning low wear rollers for optimal support and control of the saw head.
read more >>
  Travel and feed motors are protected within the chassis body. No electric parts except for connectors are exposed to dirt.
read more >>
         
          

Easy take off of HF-motor

 

Flexible track system

 

Quick disconnect coupling for blade

Quick release coupling for HF-motor on saw head. To put the motor on the saw head or to remove it takes just a few seconds.
read more »
  Flexible track system saves a lot of time and trouble when setting up the machine.
read more » 
 
  Our patented quick disconnect blade flange coupling is an extremely valuable and safety enhancing feature. The saw blade can be fitted to the saw head even after the machine has been mounted.
read more »
         
          

Highest quality material

 

New robust connectors

   

 

Lightweight saw head built from aircraft quality components machined from solid aluminium.
No castings are used.
read more »
 
  Our new digital communication connectors are developed and manufactured in house. The housings are made from solid aluminium and robust enough for the tough environment.
read more »
   

 


 

 

Blade info
 
 
Saw blade diameter max.: 2000 mm
Max cutting depth with
max. Ø blade:
915 mm  (36”) with 2000 mm blade.
(Blade radius minus 85 mm (3.35”))
Max start Ø blade: 1000 mm (39")
Saw blade arbor diameter: 60 mm (1-3/8” for the U.S.A.)
Water feed: Central through the
blade flanges
Blade flange diameter: 158 mm (6.22”) centre bolt type flange.
Flush cutting flange diameter and Bolt Pitch Circle Diameter (P.C.D): 158 mm Flange O.D.                    130 mm P.C.D. 6x M 8
10.9 countersunk screws
  110 mm P.C.D. 6x M 10
10.9 countersunk screws
  108 mm P.C.D. 6xM 10
10.9 countersunk screws
 
  4.25” P.C.D. 6x 3/8” (108 mm P.C.D. 6x M 10)
10.9 countersunk screws
   
Power

 
Saw blade motor: 400 Hz High Frequency Motor
Max continuous output power: 22 kW (27HP) with Pentpak 422
Max output torque: 1:st gear: 480 Nm @520 rpm
2:nd gear: 335 Nm @750 rpm
3:rd gear: 265 Nm @940 rpm
4:th gear: 210 Nm @118
 

Spindle speed under load:
(Note: Max power is @ 400Hz)

1:st gear 400 - 510 rpm
2:nd gear  580 - 740 rpm
3:rd gear 740 - 920 rpm
4:th gear 930 - 1160 rpm
@ 350 – 440 Hz

Continously variable from 300 Hz to 440 Hz, set potentiometer to control speed. See manual for detailed speed table.
Travel Motor -
Max travel speed:
24V DC -  2.0 m/min
Feed Motor - 
Max arm rotation Speed:
 
24V DC – 0.9 rpm
Weight  
Weight saw head: 25.5 kg (56 lbs)
Weight 22 kW HF-motor: 18 kg (40 lbs)

 


All technical data can be subject to change without notice.
 

The Pentruder 8-20HF can be powered the 15, 18 or 22 kW HF-motor.
The most common combination is with the 22 kW HF-motor.

The Pentpak 422 is recommended to power the 22 kW HF-motor. If the Pentruder 8-20HF is used with a smaller motor it can also be powered by the Pentpak 418.

A standard equipment can consist of following parts:

Part number Description Quantity
10050101DIG Pentruder 8 - 20 HF dig.com. 1
07224001DIG  HF-Motor 22 kW 400V dig.com. 1
09224001DIG  Pentpak 422 digital communication 1
64900101 Cable 24V 9m digital com. cpl (with water hose)  1
64900201 Cable 400V 9m digital com. cpl 1
64190401 Remote Control HF cpl 1
43210601 Frame blade guard holder cpl 1
42880101 Blade flange sub ass. 60mm bore cpl 1

 

Accessories    
11080701 Blade Guard Full 32" (800mm+) 1
49032101 Track 2.0 m (79") double rack cpl 1
43101401 Track foot symmetric cpl 2
65340101 Toolkit Pentruder Wallsaw cpl 1
07810101 Trolley 1


A vast combination of other accessories is possible. See accessories.



 
 
         

Track system

 

Blade guards

 

Transport trolley

For all Pentruder wall saws
(except the Pentruder 6-8HF).
  Choose from a variety of models and sizes.   The transport trolley will facilitate transport of the HF-wall saw, power pack and accessories.
         
     
         

Remote control

 

Flush cutting flanges

 

Tools

         

Operator's manual
Data sheet 8-20HF

 

 


 

Pentruder 8-20HF with 22 kW HF-motor



 

Pentruder 8-20HF and Pentpak 427

Tractive AB, Gjutargatan 54, 781 70 Borlänge, Sweden, Tel: +46 243 22 11 55, Fax: +46 243 22 11 80, E-mail: info@tractive.se, www.pentruder.com
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