Stump Grinder JBM 3935 RBH

Fully Hydraulic Stump Grinder on Crawler Track with Professional Equipment

  • Professional, fully hydraulic stump grinder for landscapers, gardening companies, and rental stations
  • Ease of use through remote control or – alternatively – through stationary control
  • Ideal machine for small to medium jobs or work with extremely limited access
  • Compact design with small machine dimensions
  • Machine width only 79 cm
  • Good off-road capabilities thanks to hydraulic traction drive as crawler track or wheel chassis
  • Smallest JBM stump grinder with gasoline engine as fully hydraulic machine
  • Extremely large swivel range
  • Weight approx. 900 kg

Stump Grinder JBM 3935 RBH – Highlights

– All equipment features: standard and options –

  • Stump grinder with high-torque 2-cylinder Briggs & Stratton engine with 35 hp (26 kW)
  • Fully hydraulic drive of all swivel, lifting, and traction drives as well as of the grinding wheel
  • Large swivel range of 145 cm so that even large trunks can be ground without moving the machine
  • Large vertical operating range: 50 cm below ground level and 50 cm above ground level
  • Large grinding wheel 450 x 15 mm
  • Hydraulic crawler track or – alternatively – fully hydraulic wheel chassis (optional with dual tires)
  • Robust construction with extremely low center of gravity thanks to center engine concept
  • High grinding capacity due to segment grinding wheel with 24 grinding blades
  • Special cutting teeth ensure high grinding capacities and long service life
  • Transport lugs for secure fastening
  • Operator safety system with integrated dead-man switch for machines with remote control as well as for machines with stationary control
  • Chain guard against stone chipping
  • Easy maintenance thanks to well accessible lubrication points and maintenance points of the drive motor
  • Small machine width of 79 cm only
  • Machine dimensions L x W x H: 270 x 79 x 120 cm
  • Machine weight: approx. 900 kg

Stump Grinder JBM 3935 RBH at a Glance

– All equipment features: standard and options –

Stump Grinder Details Drive

Drive

  • Briggs & Stratton gasoline engine 35 hp (26 kW)
  • Decoupling of drive engine from vertical grinding arm movement
  • Drive engine at maximum distance from the grinding area

Operation and ergonomics

  • All swivel, grinding, and driving functions are operated via a remote control with integrated safety control functions (EMERGENCY STOP)
  • Alternative operation of all swivel, grinding and driving functions via stationary control block and dead-man switch for grinding wheel drive
  • Unique vibration-free operation thanks to slip-resistant hand rest
Stump Grinder Details Drive

Chassis and frame

  • Hydraulic wheel drive with differential and lowering brake valve for safe transport on sloping ground
  • Tires with knobby profile
  • Increased stability due to wheel track widening
  • Stable crawler track with high torque
  • Telescopic crawler track
  • Low center of gravity of the machine due to center engine concept
  • Small machine width of 79 cm
  • Transport lugs
Stump Grinder Details Chassis

Swivel system

  • Horizontal swiveling via large hydraulic cylinder with very large swiveling range of 145 cm
  • Ball bearing mounted turntable in heavy-duty design for implementation of the horizontal swivel movement
  • Vertical swiveling via large hydraulic cylinder with optimum geometrical steering for continuous grinding
  • Stable, widely spaced bearing points to absorb vertical and horizontal forces
  • Grinding height above ground level 50 cm
  • Grinding depth below ground level 50 cm
  • Extremely stable grinding due to low center of gravity of the machine and balanced weight distribution of engine and fluids in the tanks
  • The vertical swivel movement of the grinding arm is decoupled from the engine
Stump Grinder Details Drive

Grinding arm

  • Robust grinding arm construction
  • Widely spaced bearing points with over-dimensioned bearings provide a durable, very rigid construction
  • Control via large hydraulic cylinder with optimum geometric steering position and results in high rigidity during grinding. Possible vibrations and sudden grinding wheel movements are avoided
  • Small grinding width based on the v-belt drive with hydraulic motor on top allows optimum view on the grinding area
  • Large pulleys for a powerful and durable drive
  • Grinding wheel drive via hydraulic motor, which can be electro-hydraulically activated
Stump Grinder Details Grinding Wheel

Grinding wheel and cutting blades

  • Stable blade mounting system
  • Stable grinding wheel made of high-tensile steel, grinding wheel diameter Ø 450 x 15 mm
  • Segment grinding wheel with increased cutting capacity
  • Quality cutting blades made of wear-resistant holders and 24 carbide metal (Widea) cutting teeth
Stump Grinder JBM 3935 RB Remote Control

Control and hydraulic system

  • All swivel, driving, and grinding functions are operated via a remote control with proportional valve technology
  • Integrated safety control functions (EMERGENCY STOP) in machines with remote control
  • As alternative to the remote control, in machine with stationary control, the swivel and driving functions are operated via a swivelable hydraulic control block
  • Electro-hydraulic activation of the grinding function
  • Integration of dead-man switch in machines with stationary control as well as in machines with remote control
  • Filling level indicator for hydraulic oil
Stump Grinder JBM 3935 RB

Maintenance and service

  • Good access to the cutting system for adjustments and replacements
  • Good access to all engine maintenance points
  • Well accessible lubrication points
  • Belt tensioning via quick-tensioning system
Stump Grinder Details Safety

Safety

  • Design according to the GS standard
  • Pressurized hydraulic hoses with burst protection
  • Reinforced steel housing in the area of the grinding wheel
  • Integrated safety control functions (EMERGENCY STOP) in machines with remote control
  • Dead-man switch (EMERGENCY STOP) for grinding wheel drive with stationary control
  • Chain guard against stone chipping in the area of the grinding wheel to prevent escaping material
  • Personal protection curtain for machines with stationary control
  • Quality with extremely high breakage resistance
  • Hinged spray protection wall, 3 pieces, 1 meter each