Hyster S120FTS Specifications
The Hyster S120FTS represents a well-engineered
solution in the 12,000 lb capacity IC forklift class, offering a balanced
combination of power, efficiency, and maneuverability. Powered by the Kubota
WG3800 LPG engine producing 91 hp (68 kW), this model delivers reliable torque
for lifting and maneuvering loads up to 12,000 lb (5443 kg) while maintaining
fuel efficiency suitable for demanding applications. Alternative engine
configurations include the GM 4.3L V6 LPG engine producing 98 hp (73 kW) in some
variants.
Its design prioritizes operator comfort with hydrostatic power steering, an
adjustable steer column, and a spacious operator compartment that reduces
fatigue during extended shifts. The S120FTS is distinguished by its
comprehensive safety package including the Hyster Stability System (HSS) which
monitors and enhances truck stability, and an operator restraint system. The
heavy-duty premium wet disc brakes are maintenance-free and extremely durable.
The 2-stage limited free-lift VISTA mast delivers excellent visibility and lift
speeds up to 112 ft/min (0.57 m/s). The powertrain protection system monitors
for overheating and alerts the operator. Available with cushion tires for stable
performance on improved surfaces, the S120FTS delivers travel speeds up to 13.7
mph (22 km/h) and a turning radius of 93.5 in (2375 mm) for maneuverability in
its class.
The Hyster S120FTS is a rider-seated forklift powered by an LPG engine. It has a
load capacity of 12,000 lb at a 24.0 in load centre, equivalent to 5443 kg at a
610 mm load centre. The distance from the drive axle centre to the fork face
(load distance) is 18.2 in or 462 mm. The truck has a wheelbase of 70.5 in or
1790 mm. Its service weight (unladen) for the standard 2-stage LFL mast
configuration is 16,742 lb to 16,743 lb or 7594 kg.
With a load, the total weight increases to 28,743 lb (13,038 kg). Axle loadings
with a load are 25,634 lb (11,627 kg) on the front and 3109 lb (1410 kg) on the
rear. When unladen, front axle loading is 6450 lb to 6505 lb (2926 kg to 2951
kg) and rear axle loading is 10,293 lb to 9816 lb (4669 kg to 4452 kg).
The Hyster S120FTS is powered by a choice of proven
industrial engines depending on customer requirements. The Kubota WG3800 LPG
engine is standard, with GM 4.3L V6 LPG available in some variants.
Basic Technical Data for Kubota WG3800 LPG Engine: The engine is a 4-cylinder
LPG power unit with a displacement of 230 cu.in (3769 cc). It produces a rated
power of 91 hp at 2400 rpm, equivalent to 68 kW at 2400 rpm. The engine delivers
a torque of 221 lb-ft at 1000 rpm (300 Nm at 1000 rpm). The Kubota WG3800 is a
reliable industrial engine designed for LPG operation.
Basic Technical Data for GM 4.3L V6 LPG Engine: Alternative engine configuration
features a 6-cylinder GM 4.3L V6 engine with a displacement of 262 cu.in (4293
cc). It produces a rated power of 98 hp at 2400 rpm, equivalent to 73 kW at 2400
rpm. The engine delivers a torque of 210 lb-ft at 2400 rpm (285 Nm at 2400 rpm).
Lubrication: The engine employs a forced lubrication system. Routine
maintenance, including oil and filter changes, is mandated at specific hourly
intervals as outlined in the periodic maintenance schedule to ensure longevity
and performance.
Cooling: Engine temperature is regulated by a pressurized liquid cooling system.
Regular inspection of coolant levels and condition, as well as monitoring the
radiator, water pump, and hoses for wear and debris, is part of standard
preventative maintenance.
Transmission: The S120FTS is equipped with a choice of
transmission options. Standard configuration features a 1-speed powershift
transmission with electronic inching. Optional configuration features the
DuraMatch 2-speed electronically controlled transmission with advanced features
including auto deceleration system (ADS), controlled power reversal, and
controlled rollback on ramps. The transmission type is powershift with torque
converter.
Travel Speed: This forklift achieves a laden travel speed ranging from 13.4 mph
to 13.5 mph (21.6 km/h to 21.7 km/h) depending on configuration, and an unladen
speed of 13.7 mph to 16.9 km/h (22 km/h).
Axles: The front axle is a drive axle with 2 driven wheels. The wheelbase is
70.5 in (1790 mm). Front tread width accommodates the specified cushion tire
sizes. The drive axle features wet disc brakes and reduction gear assembly as
detailed in service manuals. The robust steering axle is designed for durability
and precise handling.
Brakes: Service braking is handled by a hydraulic foot brake system with
heavy-duty premium wet disc brakes. The parking brake is a hand-operated
mechanical lever. The wet disc brakes are maintenance-free and extremely
durable, reducing total cost of ownership.
The electrical system operates at a standard 12 volts
with a maintenance-free battery rated at 475 cold cranking amps. The system
powers the starter motor, lights, and electronic control units. All aggregates
are controlled, protected, and managed by onboard controllers communicating via
a CANbus network, allowing simple and fast diagnostics. The neutral start safety
feature prevents the engine from starting if the gearshift is not in neutral.
The chassis is a heavy-duty, one-piece welded steel
frame that supports all major components: the engine, drivetrain, counterweight,
and mast. The frame includes integral tie downs for secure transportation.
The truck is fitted with cushion tires as standard, providing stable performance
on improved surfaces common in warehouse applications. The front drive tires are
size 22x12x16 (22x12x16) according to primary data. The rear steer tires are
size 18x8x12.2 (18x8x12.2). The wheel configuration features 2 driven wheels at
the front and 2 steer wheels at the rear. Overall width is 52.0 in (1320 mm) for
standard tread configuration, with wide tread option at 55.9 in (1420 mm).
The S120FTS features hydrostatic power steering as standard equipment. This
system significantly reduces the effort required to turn the wheel, especially
when the truck is stationary or moving slowly under load. The steer column is
adjustable, allowing operators to position the steering wheel for optimal
comfort and control.
The hydraulic system powers the lifting, tilting, and
auxiliary functions such as sideshift. The system features a 3-function
hydraulic control valve as standard. Load handling is controlled via precise
control valve. The auxiliary hydraulic pressure relief for attachments is set at
2250 psi (15.5 MPa). The hydraulic tank capacity is 21 gal (78 L) for drain and
refill.
The forklift is equipped with a 2-stage limited
free-lift (LFL) VISTA mast as standard, with optional 2-stage full free lift
(FFL) and 3-stage FFL configurations available to suit various applications. The
VISTA mast design provides excellent visibility. The standard 2-stage LFL mast
has a lowered height of 85 in (2138 mm). It provides a free lift of 6 in (150
mm) with load backrest, enabling lifting in low-clearance areas before the mast
sections begin to extend. Optional full free lift masts provide 35 in (907 mm)
of free lift without load backrest.
The maximum fork height is 110 in (2800 mm) for the standard 2-stage LFL mast.
The mast extends to a height of 159 in (4031 mm) including load backrest.
Without load backrest, extended height is 144 in (3657 mm). The mast tilts
forward by 5 degrees and backward by 6 degrees to facilitate load handling and
secure transport. The fork carriage is a 42 in (1067 mm) wide carriage. The
standard fork dimensions are 2.5 in thick, 60 in wide, and 48 in long, which is
60 mm by 150 mm by 1219 mm. The maximum fork spread (outside dimensions) is 38.3
in (972 mm).
Load Capacity: 12,000 lb (5,443 kg)
Load Centre: 24 in (610 mm)
The lift speed with a load is 110 ft/min (0.56 m/s) for
the standard 2-stage LFL mast, and without a load, it increases to 112 ft/min
(0.57 m/s). Optional 2-stage FFL mast lift speeds are 102 ft/min (0.52 m/s) with
load and 106 ft/min (0.54 m/s) without load. Optional 3-stage FFL mast lift
speeds are 106 ft/min (0.54 m/s) with load and 108 ft/min (0.55 m/s) without
load. Lowering speeds are 100 ft/min (0.51 m/s) with load and 83 ft/min (0.42
m/s) without load for the standard 2-stage LFL mast.
Optional mast lowering speeds range from 89 ft/min to 106 ft/min (0.45 m/s to
0.54 m/s) with load and 63 ft/min to 83 ft/min (0.32 m/s to 0.42 m/s) without
load. The truck can generate a maximum drawbar pull of 7733 lb (3508 kg) when
laden and 3597 lb (1631 kg) when unladen. Maximum gradeability is 28 percent
when laden and 24 percent when unladen. Maximum climbing ability is 28% to 34%.
The overall length of the truck without forks is 106.3
in (2699 mm). With the standard 48 in forks, overall length is 154.3 in (3920
mm). The overall width is 52.0 in (1320 mm) for standard tread configuration.
The height to the top of the overhead guard is 86 in (2175 mm), with optional
guard height of 83 in (2108 mm). The step height from ground to running board is
15.6 in (396 mm). Ground clearance, unladen, is 4.6 in (118 mm) at the lowest
point and 6.1 in (156 mm) at the centre of the wheelbase.
With a load, ground clearance decreases by approximately 6 mm (0.24 in). The
minimum aisle width required for right-angle stacking (add length of load) is
111.7 in (2837 mm). The equal aisle width for 90-degree intersecting aisles is
86.0 in (2184 mm). The outside turning radius is 93.5 in (2375 mm). The truck's
operating weight ranges from 16,742 lb to 16,743 lb (7594 kg) depending on
configuration.
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