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6798H Coach (Spring)

6798H series coach is an extraordinary one among Zhongtong mid-size buses. Focusing on technological innovation and customer demand, Zhongtong has accomplished dozens of optimizations in buses' structure and performance, and made breakthroughs in security, energy conservation, space, and some details. 6798H is now gradually becoming a new paragon on the mid-size vehicle market.

Main Features
Appearance Upgrade
6798H coach shows splendid and cool appearance in the front part. When designing the headlights, Zhongtong refer to the design of car, to integrate the headlights into the chrome plated middle panel. The characters "ZHONGTONG" can be lightened for higher degree of recognition. The special boomerang-shaped rear lamps and LED dot matrix lights make the bus look modern and fashionable. The multi-mirror blind-free rearview mirror is adopted to enhance diver's vision.

Higher Reliability
The pipe and line layouts are optimized to improve the coach's reliability and to make maintenance easier.
The underslung frame is punched as a whole to add to the system's reliability and strength.
The dehydrator and degreaser are installed at both ends of the pipeline system to provide clean compressed air and to extend the service life of the brake system.

Better Practicability
A maintenance door is installed at the front bus part for the convenience of checking the pipeline and adjusting the headlights.
The brightness of headlights and inner dome lights is improved to guarantee drivers' and passengers' safety when driving at night.
The clutch operating system is designed with automatic gap adjusting function to automatically adjust the gap and extend the service life of the clutch.

Greater Comfortableness
We have optimized the suspension system by increasing the roll stiffness, for higher lateral stability and controllability, as well as wider applications.
The seat is user-friendly, with the back curve designed to be in line with the ergonomic principle.
The interior space is optimized to widen the space for passenger and pass way.
The multi-layer body helps to reduce the noises from both inside and outside.

Bus parameter total length (mm) 8040 Engine model YC4G180-20/ISDe180 30
total width (mm) 2480 manufacturer Yuchai/DCEC
total height (mm) 33, 503, 250 position/fuel rear/diesel
inner height (mm) 1940 type inline-four cylinder, four-stroke, water-cooling, intercooling
wheelbase (mm) 3800 max power (kw) 132/136
front/rear suspension (mm) 1780/2460 max torque (N.M) 660/650
approach angle/departure angle (º) 12/9 displacement (ml) 5202/4500
height of a single step (mm) 420 cylinder diameter × stroke (mm) 112X132/107×124
max total mass set by factory (kg) 11000 emission standard
rated capacity (person) 31+1+3 luggage compartment volume (m3) 2.8
max speed (km/h) 100 certification
Item Standard configuration Optional configuration
Chassis parameter chassis Zhongtong Bus Holding Co., Ltd.
gearbox S6-80
clutch φ395; single plate; dry clutch
front axle 4.2T
rear axle 8T
suspension parabolic spring 4/4 air suspension (2/4 airbag), multiple leaf spring 9/11 (mountain area)
steering integral power steering, imitation mahogany steering wheel (with Dongyue logo)
brake double circuit air brake, front-disc rear-drum brake, KORMEE ABS, automatic gap adjusting arm
fuel tank 200L
tire 8R22.5
accumulator/alternator 120A.h/150A (YC4G180-20).140A (ISDE180-30)
seat 2+2 arrangement; 30+1+1+3 seats; adjustable seat with lateral movement function ZTZY3170; seat belt alarming system for all seats; 3 folding chairs at the rear corridor of the middle door; airbag for driver's seat ZTZY1052 2+2 arrangement; 29+1+1 seats; adjustable seat ZTZY3170; safety belt for every seat; airbag for driver's seat ZTZY1052; ultra-thin seat for tour guide with lateral movement; pedal