HEM 420 DQ / DL / Z
Application areas:
■ Multiple versions of the machine, in order to satisfy the respective requirements for any application: “Z” indicates use of a PTO shaft, “DQ” indicates use of a lateral intake and “DL” indicates use of a longitudinal intake.
■ Intended to be used for the processing of forest residue, grass/foliage cuttings
and trunk wood with diameters up to 420 mm (approx.).
■ The chipper can reach a throughput rate of up to 100 lcm/h.
■ Ideal for reducing roadside greenery.
■ Compact and powerful due to its upper intake roller, lower steel-link conveyor and foldable intake table.
■ Sound logistical planning due to the optionally available silo, which acts as a buffer when chips are being delivered, to avoid immobilisation.
■ If a conveyor belt is used for discharging the processed material, then the
wood chips will be of higher quality with fewer fine particles, and for the machine
there will be a significant reduction in fuel consumption and power, with the
machine being subjected to more gentle loads.

Optimum adjustment:
Various types of build are possible for the machine, to guarantee the best possible chipping performance:■ Trailer with tandem axle
■ Fixed structure on a triple-axle lorry (fixed in position)
■ Hook-lift body for “rolling off” the machine
■ “Tiger” model with track roller unit for extreme terrain conditions.
short facts
Models:
HEM 420 Z
HEM 420 DQ
HEM 420 DL
Performance:
HEM 420 Z:hardwood: up to 30 cm in diameter
softwood: up to 42 cm in
diameter
throughput rate: up to 100 lcm/h
Intake opening:
420 x approx. 1,000 mm
Rotor diameter:
620 mm
Number of blades:
10 blades (optional, 20 blades)
Material outfeed:
Blower, optional with conveyor belt
Drive:
HEM 420 Z:PTO shaft, between approx.
90 kW (125 hp) and 180 kW
(245 hp)
HEM 420 DQ / DL:
Mercedes Benz OM 926 LA,
240 kW (326 hp)
Weight (basic model incl. loading crane)
HEM 420 Z: Approx. 11,500 kg
HEM 420 D: Approx. 13,800 kg
Dimensions (with loading crane taken into account):
HEM 420 Z:Length: Approx. 5.50 m
Width: Approx. 2.55 m
Height: Approx. 3.80 m
HEM 420 DQ
Length: Approx. 8.12 m
Width: Approx. 2.55 m
Height: Approx. 3.80 m
