Chassis 8×8-4 CUMMINS + FAST MT(optional AT)

1 Model number: RD88-4646 

2 Main technical parameters  

2.1 Structural parameter  

2.1.1 Chassis dimensions 

(Length mm) : 11970

(Width mm) : ≤2550 

(Height mm) (unloaded) : ≤3450

2.1.2 Wheelbase (mm) (full load) : 1900+4950+1450 

2.1.3 Front overhang(mm) : 1630 

2.1.4 Available length for superstructure (mm) : 760

2.2 Mobility parameters  

2.2.1 Maximum speed (km/h) : 80 

2.2.2 Maximum Gradient (%):60

2.3 Passing parameters  

2.3.1 Minimum turning diameter (m) : ≤33 

2.3.2 Minimum ground clearance under the axle (mm) (according to GB15089) : ≥295

2.3.3 approach angle without front under-run protection in unloaded condition (°) : ≥25

2.3.4 Departure angle under empty loaded condition (°) : ≥20

2.4 Chassis quality parameters 

2.4.1 Curb weight (kg): 15200 

2.4.2 payload (kg): 32000 

2.4.3 Permissible axle load on front axle (kg): 10000

2.4.4 Permissible axle load on rear axle (kg) : 16000

2.4.5 Maximum permissible mass GVW (kg) : 46000

2.5 Interface parameters

2.5.1 Height from upper frame of the front axle to the ground (unloaded) (mm) : 1280±25 

2.5.2 Height from ground on the upper frame of the rear axle (unloaded) (mm) : 1280±25

2.5.3 Frame cross-section size (mm) : 320 

2.5.4 Front width of frame (mm) : 940 

2.5.5 Width of rear end of frame (mm) : 860

2.5.6 Frame Hole size (mm): 15 

2.5.7 Front wheel track (mm) : 2065 

2.5.8 Rear wheel track (mm) : 1868

3 Structural form of chassis components 

3.1 Engine:  Cummins  ISZ480 30  (produced by a joint venture of Dongfeng and Cummins)

3.1.1 Emission: EURO III

3.1.2 Arrangement and number of cylinders: Inline 6-cylinder, four-stroke 

3.1.3 Rated power (HP) : 480 

3.1.4 Max torque (N.m/rpm) : 2330/ (900-1300) r/min

3.1.5 Direction of rotation (from the output orientation) : counterclockwise

3.1.6 Cooling: water cooling  

3.1.7 idle speed (r/min) : 700  

3.1.8 engine brake /3.1.9 exhaust brake: engine brake and exhaust brake can only choose one or other  

3.2 Clutch     

3.2.1 Model: SACHS  

3.2.2 Form: Clutch pressure plate outer diameter: ∅430mm   

3.2.3 Type: 

Maximum transmission torque: 3,192 N.m.  

Applicable engine torque: ≤2400 N.m.   

3.3 GEAR BOX     

3.3.1 model: FAST MT 12JSDX240TA  (FAST’s main shareholder is Weichai Holding)

Ratio & Type: MT, 12 forward gears, 2 reverse gears,  

transmission with synchronizer & retarder  

ratio: 12.098、9.518、7.313、5.711、 4.462、3.476、2.712、2.133、1.639、 

1.280、1.000、0.779.    

R11.572、R2.594   

 (Intarder has 5 speeds)  

Optional:  FC AT FC7A260DPR  (FC is a joint venture of FAST and Caterpillar)

3.3.2 PTO, attached to gear box

Equipped with QH70 PTO, with a maximum torque of 700Nm.  

Spline connection (Spline parameters 8- 6×36×32.3. flange connection size 80mm x 80mm, 4- φ13mm).

Power take-off control: Optional parking PTO or driving PTO   

PTO switch location: dashboard  

PTO torque and rpm: 700 N.m   

Optional: Dual PTO with an additional gearbox

3.4 Transfer case     

3.4.1 model number: ZQC2800  

3.4.2 maximum input torque: 32000Nm. Maximum input speed: 2800r/min  

3.4.2 Ratio (high speed /low speed)   

Torque split ratio: 1:2.13 (differential is optional)   

3.5 Front axle  

Model: 

Ⅰ axle and Ⅱ axle are integrated steering drive axle, 10t+10t.  

Both the I and II axles are equipped with wheel-to-wheel differential locks.

II axle with optional of inter axle differential lock. With optional of main reducer and wheel reducer ratio 5.26  

3.7 Rear axle   

Model:

Ⅲ axle and Ⅳ axle are integrated drive axle, 16t+16t.Both Ⅲ axle and Ⅳ axle  with optional of wheel differential locks. Ⅲ axle with optional of inter axle differential lock, with optional of main reducer and wheel reducer ratio 5.26 

3.8 Tire  

3.8.1 Standard models   

3.8.2 Option models: /  

the 1st axle and 2nd axle adopt  385/65R22.5, single tire. 3rd axle and  4th axle adopt 315/80R22.5, and mount  dual tires, with spare tire （385/65R22.5）With spare tire device  

3.8.4 Quantities + brand: 13 

3.9 Cab      

3.9.1 form: Flat roof, two doors, two seats, one sleeper, no need glass in rear  

3.9.2 structure：/   

3.9.3 Interior trim 

Driver's cab flipping Electric flipping + manual flipping  

Driver's seat air spring shock absorption Electric lifting with central locking with air conditioner  

Rear view mirror with electric heating with interior sunshade, with exterior sunshade  

Cab with four-point full-floating suspension and spring damping  

Passenger side seat with airbag damping with center lock  

With hand throttle  

3.9.4 Exterior trim: Optional body with toolbox (installed on the outside of the frame)  

3.9.5 Cab Color: white (BC-118)  

3.9.6 Cab rated capacity: 2  

3.10 Fuel tank     

3.10.1 Volume (L): 630，(tank length is 1500 mm)  

3.11 Suspension system     

3.11.1 Front: Leaf spring suspension with shock absorbers，9 spring  

3.11.2 Rear: Leaf spring balanced suspension，12 spring  

3.12 Steering gear     

3.12.1 Model: I and II axle steering, using hydraulic assistance   

3.12.2 Form: hydraulic   

3.13 Brake: KNORR  

3.13.1 Service brakes: Double-line pneumatic braking  

3.13.2 Handbrake: yes   

3.13.3 Emergency braking: Handbrake  

3.13.4 Air reservoirs: 190 L  

3.14 Appliances, gauges, lighting, chassis signals      

3.14.1 Battery parameters: 24V 2×200Ah battery  

3.14.2 Instrument panel: Instrument selection in English, multimedia selection in English  

4 Other 

4.1 Independent warm air: yes   

4.2 Heat the rearview mirror: yes   

4.3 ABS System(Anti-Brake lock System) : yes

4.4 horn: With electric horn and air horn  

4.5 CTIS: Yes  

4.6 ambient temperature(℃): -25～55  

5 Logistics

Can be exported in form of SKD with assembly authorization

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