PRODUCT DESCRIPTION

Designed for use with truck, tractor and OTR wheels of up to 1500 kg and 14" - 56" rim diameter, the Hofmann monty® 4250R is equipped with a unique bead breaker disc for bead breaker forces of up to 33 kN. The revolving control panel, mounted on a swing arm, allows for quicker and more comfortable operation. Unique up and down moving tool holder arm and automatically rotating tool are time-saving and easy to handle.

  • Truck tyre changer for truck, utility vehicle and OTR wheels of 14“ – 32“ and up to 56" with optional extensions

  • Electro-hydraulic drive

  • Rugged over-sized chuck

  • Positioning of wheel and tool within a wide accurate adjustment range

  • Infinitely self-centring universal hydraulic chuck

  • Unique bead breaker disc for bead breaker forces of up to 33 kN

  • Bead breaker steel disc mounted on specially hardened bushing is easy to lubricate and ensures long life

  • Revolving control console, mounted on a swing arm, for ergonomic operation

  • Unique up and down moving tool holder arm and automatically rotating tool are time-saving and easy to handle

  • Sidewise movement of tool holder arm and chuck are hydraulically controlled for quick and convenient operation

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monty® 4250

Designed for use with truck, tractor and OTR wheels of up to 1500 kg and 14" - 56" rim diameter, the Hofmann monty® 4250 is equipped with a unique bead breaker disc for bead breaker forces of up to 33 kN. 

monty® Truck Tyre Changers
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Tyre lever PLUS
Tyre lever PLUS

certified by WDK

Bead pushing lever
Bead pushing lever

To hold bead in the drop centre of the rim during the mounting operation

Short tyre lever
Short tyre lever

500 mm / 19.7" long

Special truck tyre lever
Special truck tyre lever
Valve fitting lever
Valve fitting lever

helpful to place valve onto the rim

Mounting clamp
Mounting clamp

to help in mounting operations

Clamp for light alloy rims
Clamp for light alloy rims
Tubeless roller
Tubeless roller

BEAD BREAKER

feat-beadbreaker4000

The bead breaker disc is equipped with a special tilting system in order to increase bead breaking effort and to make sure the bead breaking disc is always in optimum positionrelative to the rim.

CHUCK

feat-chuck4000

The chuck is of solid design to accommodate wheels of up to 1500 kg. A non-return valve prevents the chuck from opening in case of a sudden hydraulic pressure drop.

The mounting clamp

feat-mountingclamp

A strong aid

For wheels type Road / Agricolture / Construction
Rim diameter no extensions 14" – 32"
Rim diameter with extensions 32" – 56"
Clamping center bore range 130 - 690 mm
Wheel diametre inch
Wheel diametre 2350 mm
Wheel width 1100 mm
Wheel width inch
Max wheel weight working position 1500 Kg
Max wheel weight working position inch
Clamping type Tulip clamp double effect
Clamping axial orientation horizontal
Clamping force 60 kN
Clamping force lbs
Chuck speed 2 Manual switch
Bead breaker type Disk
Bead braking force 33000 N
Bead braking force lbs
Breaking force
Breaking force
Mounting tool type Disk / Tool
Demounting tool type Tilting Disk / Tool
Tools tangential to the rim No
Tool left/right travel On additional carriage
Tool rotation Automatic
Tool positioning by additional carriage
Hydraulic pump flow 6
Hydraulic pressure 160 bar
Carriage, cylinder diameter 2 x 55
Carriage, cylinder diameter
Chuck arm, cylinder diameter
Chuck arm, cylinder diameter 70
Integrated wheel lift No
Hydraulic motor 1,5 kW
Chuck motor 1,3 /1 ,8 kW
Power supply 400 VAC 3ph 50Hz
Max footprint dimensions
Max footprint dimensions 2450 x 2100 x 1480
Net weight 890 Kg

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