1. ASTRA HHD9 8x6 – 8x8
Heavy Range - Astra

2. HHD9 at a glance HHD9 means Heavy Heavy Duty generation 9
Based on HD9, with two major upgrades:
Extra reinforced Chassis (8x6, 8x8)
Kessler axles only
3 axles: +25% GVW vs HD9
4 axles: +20% GVW vs HD9
Not road legal (width 2,915m)

3. HHD9 - THE RANGE NEW ! Version 3 axles 4 axles Traction 6 x 6 8 x 6
EURO 3
Version
3 axles
4 axles
Traction
6 x 6
8 x 6
8 x 8
CHASSIS
TRACTOR
Min. Power (HP)
380
Max. Power (HP)
540
GVW (ton) 50 63
Max. GCW (ton)
300
400
NEW !
(*) Tech Limits depending by configuration and mission

4. HEAVY HAULAGE Why HHD9: THE MISSION HHD8 66.54T HHD8 88.54T
Heavy haulage tractors
up to 400t GCW, depending from the configuration.
Special features
Manual ZF Gearbox with
WSK torque converter
Additional heat exchanger
behind the cab
Front and rear 500 ton
towing hooks
HEAVY HAULAGE

5. MINING Why HHD9: THE MISSION HHD8 88.54T Multipurpose truck:
Heavy Haulage (GCW 250T)
Dumptrucks tyres handling
Special features:
WSK440 Hydraulic Torque
converter
Extra cooling system
Front and Rear hook 250Ton
Effer Crane 75 ton/m
MINING

6. HHD9 – Technical Highlights
EXTRA HEAVY DUTY AXLES
10 t FRONT AXLES t REAR AXLES

7. HHD9 – Technical Highlights
KESSLER vs FPT axles
TYPICAL APPLICATIONS
Bodies with heavy front load (e.g. heavy cranes)
Heavy haulage
Low temperatures
Steep gradients downhill
Kessler 
FPT
Dura- bility
Produ- ctivity
Missions Coverage
Gross weight (ton)
9 (std) /10 (opt)
8,5
Housing
Steel
Cast iron
Brakes (duo duplex)
Wabco
Meritor  

8. HHD9 – Technical Highlights
Extra Heavy – Duty transfer Box ZF VG 2700
“One of the most powerful transfer cases in the world“ Source: ZF
VG 2700
TC 2200
HD9
>= 520 HP
STD
HHD9 -
Oil cooler
RWD/AWD
Switch
OPT
Oil quantity
10 L
6,5 L

9. HHD9 8x6 – AXLES
NEW DISC BRAKES (front axles only)

10. HHD9 8x6 - CHASSIS DOUBLE «C» RAIL : 10 mm outer 6mm inner
Rail Bending Moment
300’000 Nm
Risaltare la differenza con i 4 assi

11. HHD9 - STEERING 3 Steering cylinders Improved 38°steering angle
Confronto

12. OFFROAD CIRCULATION ONLY
HHD9 8x6 - DIMENSIONS
Axle outboard width
2915 mm
OFFROAD CIRCULATION ONLY