SCX800HD-2
GENERAL DIMENSIONS(4000)

Unit : mm

4 660

1 100

R3 980
500

1 600

9990
800

5 150

SCX800HD-2-2
SCX800HD

4 830 (extended)

6 060
Dimension in (3851 175

1 785

3 105

3 200(5500)

5 835

1 600

940

3 200 (retracted)) are when tracks are fully retracted.

SPECIFICATIONS
Liftcrane applicationtMax. lifting capacitym

Basic boom length

mMax. boom length
Fly jib length
Boom + fly jib length

80

Clamshell application

3.4

9.5

m

54.5

21.5

m

9.0 to 18.0-m

45.5-9.0m / min110110m / min110110

m / min

68

68

Slewing speed

min-1

5.1

5.1

Travel speed high/low(*2)

km/h

1.8 / 1.3

1.8 / 1.3

Gradeability%( )30 (17)30 (17)

Isuzu 6HK1X

Isuzu 6HK1X

212 / 2 000

212 / 2 000

91

96

Front main drum

Rope line Rear main drumspeeds(*1)
Boom hoist drum

EngineMake & model
Rated output

kW / min-1

Ground contact pressure

kPat

Operating weight(76.3
with / basic boom and80 t hook block

Thee NNeeww W
W oo rr ll dd S
S tt aa nn dd aa rr dd
ThC r a w l e r C r a n ee-9.5)(81with / basic boom and3 Clamshell bucket
2.5 m)

Notes : 1. These figures are based on drum first layer and rated engine rpm with no load, and vary under load andoperating conditions ( 1).
2. Travel speed is based on flat, level and firm supporting surface, and under the conditions that no load must
be applied and front-end attachment must be 9.5m basic boom ( 2).

**

We are constantly improving our products and therefore reserve the right to change designs and specifications without notice.
Units in this catalog are shown under International System of Unit ; the figures in parenthesis are under Gravitational System of Units as old one.
Illustrations may include optional equipment and accessories, and may not include all standard equipment.
“HSC” throughout this catalog. “HSC CRANES” is a brand of Sumitomo Heavy Industries Construction Cranes Co., Ltd.

Address inquires to :9-3, Higashi-Ueno 6-chome, Taito-ku, Tokyo 110-0015, Japan
Phone: 81-3-3845-1387 Facsimile: 81-3-3845-1394
http://www.hsc-cranes.comPrinted in Japan
1804 K 01T.EA280

The New World Standard SCX800HD-2

Take a closer look. The SCX800HD-2.
A new standard of 80ton class versatile machine crawler crane throughout the world.
Durable machine with bigger winches. The SCX800HD-2 matches with digging and excavating
works. "High lifting performance", "job-proven controllability", "operator comfort", "superiorsafety", "transport easy", and "good environment". These features of mother machine of
SCX800-2 are of course taken into its design. No doubt. The SCX800HD-2 surely provides
superior duty cycle operation feature more than ever.
Multiple wet-disk brakeDrum

The clutchless multiple
wet-disc brake requires nomaintenance.
This brake system requires nomaintenance unlike a conventional
drum brake with linings.
Accordingly, it results in reducing
the machine maintenance costgreatly.

A high viscosity hydraulicoil is standardized.

A newly developed mechanism isused on the brake design to reducedrag resistance and it realizes asmooth friction-off between discs
even though the standardized highviscosity hydraulic oil is utilized,
contributing to longer life of
hydraulic pumps and motors.

196kN (20t)

Rated line pull

108kN (11t)

The SCX800HD-2 is really aversatile machine andcertainly performs not only
liftcrane works but also duty
cycle works with bigger line
pull of 196kN (20t) as
maximum with cable of 26mm
diameters.

Hydraulic motor

The front/rear main winch drums andoptional 3rd winch drum use a
multiple wet-disc brake, and aforced-oil cooling system is designed
to sustain brake performance evenin continuous operations such as
hammer grabbing.

Max. line pull

A really versatile
machine withpowerful winch drum.

Reduction gear unit

Advanced clutchless
multiple wet-disc brake iswell designed, and ensurescontinuous heavy-duty
operation.

Higher lifting
performance

Bigger drum horse power
at widely used rope line
speed range.

A bigger drum horse power (linepull by line speed) is realized undera new winch drum design with a
specially-tailored power increase
control system that maximizes
engine output under any loadcondition in whole range of engine
rpm.

Wider drum is designed.

In consideration of an efficient
bucket work, front and rear main
operating drums are able to wind
up approx. 36m long cable at drum
first layer with 20 windings; it
accordingly results in longer cable
life under a right cable winding intodrum.

Optional third drum.

A third drum is optionally available.

An aluminium-make oil cooler.

2For not only corrosion-resistancebut also high cooling efficiency, analuminium-make oil cooler isprovided in front of engine radiator.

3

The New World Standard SCX800HD -2

Job-proven certain controllability
Brake pedal
Pressure
reductionvalve

New negative brake systemmuch reduces operator
fatigue and enhances safety.
With a new negative brake ofspring-applied/power
hydraulically-released design
applying dynamic hydraulicpressure for its release control, an
effective braking can be done
under an extreme light footpedalling, and it accordingly resultsin greatly reducing operator fatigue
especially during winch free-fall
operations under duty cycle
applications. Further, theuse of negative brakesystem maintains ahigh level of brakesafety even if ahydraulic pressure
drop in the circuit
happens.

A high operation ease withspecially-tailored EPC
system.

Thanks to unique EPC system, aneasy-precise-minute control ofengine rpm and pump discharge
from min. thru max. is reallypossible at the same time by simply
twisting the grip fitted on slewing
control lever.

Hyd.
pump

Rear drum

Front drum

Motor

Motor

Hyd.
pump

An armchair control station isprovided for a good, easy andcomfortable operation. In addition,
drum operation sensors are fitted
on the armchair control levers of
two main drums to let operator
sense a drum rotation speed
decrease/increase by a knob
vibration per 11 mm cable
winding/rewinding movement at 1stdrum layer, and it results inperforming more safety lifting work,
especially in blind condition.

Drum rotation speed iseasily synchronized.

Under a series hydraulic circuit on
two main operating drums, theSCX800HD-2 allows the
inexperienced operator tosynchronize rope line speed of front
and rear drums ranging all the way
even a high speed range so thatclamshell/Japanese MHL diaphragmwall excavating bucket operation
can be easily and preciselyperformed.

A series hydraulic circuit is designed on front
and rear drum winch motor hydraulic lines.
Accordingly, oil flow capacity to each motor
is equal, and as a fixed displacement axial
piston motor is used on each drum, the drum
rotation speed gets equal regardless of thedifference of the load between
front and rear drums.

4

Armchair control station
with drum rotation sensors.

A good slewing & boom
hoisting/lowering speed
control design.

Boom hoist drum rotation speed
can be freely controlled thru knob
dialling independently for more
precise combined operation of hookand boom motions. In addition,
max. slewing speed can be freely
controlled thru knob dialling too,and, as an example, it realizes aprecise combined operation underhigher hook hoisting and lower
slewing speed in high lift work.
Further, more smoother slewing
can be realized in any kinds
operations and works too because,
as a main reason, a variabledisplacement axial piston pump is
designed in slewing circuit.
5

The New World Standard SCX800HD-2

Operator comfort withsimplified & functional
control station layout

80mm* A 65 mm in height isadjustable as available.

60 mm

Slidable control station andoperator seat.

To set most of suitable operator position,
both right- and left-hand control stations
are designed to simultaneously slide 60
mm back and forth together with operator
seat, and operator seat is able to slide 80
mm independently too.

Control lever arrangement
under human-engineering, andfunctional instrument panel
design.
A newly designed operator's cab.

In consideration of operator comfort, a new operator's cab much
improves the visibility thru front and both side windows of the cab
under simplified layout of control station. In addition, a reinforced lightgreen-tinted safety glass is adopted in front window to protect
operator from ultraviolet rays and airborne debris.

Cab large sliding door with a slewing-link design.

Further, control station and instrument
panel are designed suitably for operator
control ease with comfortable and naturalposition.

Simplified and easy-to-read panel.
A large LCD
graphic display
panel of Load
Moment Indicatoris provided with areflection-lessdesign on display
panel. And, theswitches,meters/gauges
and controllers
are functionallygrouped foroperator control.

For easy entry and exit to and from the cab, and smooth door opening
and closing, a slewing-link type large sliding door is designed. And,a slewing-link door design certainly eliminates a troublesome
occurrences like a gathering the mud into rail groove, rail-rust and soon unlike rail-slide door.

Outside-airintake type air-conditioner.
Air-conditioner control panel

6

Cup holder

Window shield wiper

For good air-conditioning with fresh air, an outside-air intake typeair-conditioner is available.
7

The New World Standard SCX800HD-2

Automatic drum pawl
locking device.

Excellent reliability in every safety function

On boom hoist drum, it is designed
to automatically lock and release
drum pawl when control lever justreturns to neutral position, and justactuates.

Our own designed new Load Moment Indicator.

The Load Moment Indicator (LMI) is reliable computerized safety device
developed under our own accumulated technique in the past.
An easy-to-read LCD graphic display panel is well designed and areflection-less display panel is provided on a new LMI with setting ease ofviewing angle. In addition, no zero-point adjustment, and data input thru
interface counter-indication/message on display panel are available for easierand certain setting of operating conditions and LMI functions.
Of course, "present lifting load", "rated load", "load ratio", "working radius","boom angle", "engine rpm" and so on are indicated on the LMI display panel.
Further, displayed picture and menu selection can be easily set up by panel
switch in accordance with operation situation and condition.

Lifting height indication function.

For more safer lifting work especially in blind condition,
it is available to indicate the lifting height
above ground or depth below groundon display panel of LMI.

Slewing and travel alarms.
These alarms alert work crewaround the machine when slewing
and/or travelling to keep clear forsafety.

Boom speed slowdown
function.

This function is available just before
automatic stopping of boom motion
at both upper and lower side limitsof boom angle to prevent a shock
even though control lever is still at
hoisting/lowering position.
This function is also available when
over-loading in the case thatworking radius exceeds thespecified one.

LMI automatically sets
front-end att. erection
mode with letter message.

In the range out of crane working
area, the LMI display panel
automatically indicates "Now, out ofcrane working range" with a rigging
instruction, and it is available to lift
front-end att. off ground without theinfluence of LMI safety functions,and, after front-end att. is lifted over
the range of crane working area,
LMI safety function gets backautomaticallyfor safe
erection
work.

Secondary boom
over-hoist limiting device.

Further to boom over-hoist limiting
function by the limit switch and LMI
safety circuit, an additional limit
switch is located on boom
backstops for redundant boomprotection.

8

Optional
3-colorpercentage
indicator.

To let workcrew aroundthe machine know operating
conditions of "safety" or "marginal"or "over-loading" with a 3-color of"green" or "yellow" or "red". As afurther function, red lamp comeson automatically wheneveroperator cuts off LMI safety circuit
absentmindedly.

Independent lever lock.

Control lever can each bemechanically locked to prevent
absent-minded misoperation.

Standardized safety devices
other than the above
Main hook over-hoist limiting device;
LMI safety circuit-off switch
Slewing brake safety circuit;
Non-drum brake preventing device;
Free-fall interlocking device;
Lock lever (Fool proof shut-offsystem;)
Drum pawl locks;
9The New World Standard SCX800HD-2

Faster assembling/disassemblingof tread members and a goodtransportability

Heavy-Duty version

SCX800HD-2
Max. lifting capacity:

80t 3.4m

Max. line pull:

196kN(20t)

Optional counterweight self-removal
device.

Counterweight with horizontally-spit
design.

It is able to raise and lower each counterweight by agantry with two power hyd. cylinders.

It is able to load boom extensions onto counterweight
when transport. And, the reversible stack is possible toreduce the time for disassembling/assembling works.

Optional lower frame jack-up device.

Lower frame jack-up device gets faster assembling/disassembling of twotread members, and it is allowed to transport basic machine with boom
base section in 28t weight thereafter.

Basic machine transport outline
Attach lower frame jack-up
1 device on to lower frame,and disassemble two treadmembers.
Set up trailer bed under lowerframe,and load the machine2
on to trailer by cylinder
retraction.

4 Transport basic machine with boom base section in 28 t weight.

SCX800HD-2

3 Disattach lower frame
jack-up device.

A Keen Attention to Environment
The prime mover is from ISUZU, a reliable diesel engine manufacturer,
and meets current EU Emission Regulations for Off-Road Diesel Engine - Stage 3.

1011