SANY STC250 TRUCK CRANE 25T LIFTING CAPACITY. Technical Specifications & Load Chart
STC250 TRUCK CRANE
4
ICON
SANY TRUCK CRANE
CONTENT
04 Icon
05 Selling Points
06 Introduction
09 Dimension
10 Technical Parameter
11 Operation Condition
12 Load Chart
14 Wheel Crane Family Map
Cab
Carrier frame
Suspension system
Hydraulic system
Outriggers
Telescopic boom
Control system
Engine
Lattice jibs
Telescopic system
Transmission system
Superlift devices
Luffing system
Drive/Steer
Luffing lattice jib
Slewing
Axles
winch mechanism:
Counterweight
Tyres
Safety system
Brakes system
Hoist system
Electrical system
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STC250 TRUCK CRANE
5
SELLING POINTS
Excellent and stable chassis performance /
Ultra long, super strong and highly sensitive
chassis system
load lifting capacity
Double-axle drive is used, providing good tafficability and
Four-section boom of high strength steel structure and optimized
comfortableness under complex road condition with reliable
U-shaped cross section reduces weight significantly with higher
traveling performance.
safety rates. Jib mounting angles are 5°, 17°, and 30° which
Engine has the multimode power output function, which reduces
ensures fast and convenient change-over between different
power consumption.
operating conditions so as to improving working efficiency of the
The use of tipping over early-warning technology provides high
machine.
stability and safety of the overall operation.
Highly efficient, stable, energy-saving and
Safe, stable, advanced, and intelligent
adjustable hydraulic system
electric control system
Triple gear pump, load feedback and constant power control
Self-developed controller SYMC specially for engineering
are applied to provide strong lifting capacity and good micro-
machinery is configured. The adoption of CAN- bus full-digital
mobility. Unique steering buffer design is applied to ensure
network control technology ensures stable control signal, simple
stable braking operation.
harness and high reliability. Timely feedback of data information
can achieve the monitoring of the overall working status in real-
time. The load moment limiter equipped with the comprehensive
intelligent protection system is used with accuracy within 3%
to provide a comprehensive logic and interlock control, thus
ensuring more safe and reliable operation.
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STC250 TRUCK CRANE
6
INTRODUCTION
Superstructure
Cab
■ It is made of safety glass and anti-corrosion steel plate with ergonomic design such as full-
coverage soften interior, panoramic sunroof and adjustable seats etc., and humanized
design providing more comfortable and relaxing operation experience. The display of load
moment limiter integrates main console and operation display system, which clearly show
the data of all operating superstructure conditions for lifting operation.
Hydraulic system
■ High-quality key hydraulic components such as main oil pump, rotary pump, main valve,
winch motor, and balancing parts etc. are adopted to achieve stable and reliable operation
of the hydraulic system. Superior operation performance is guaranteed by accurate
parameter matching.
■ Main valve has flow compensation, load feedback control function, enabling stable
and convenient control of single action and combined action under different operation
conditions.
■ Winch adopts the variable motor to ensure high operation efficiency. Max. single line
speeds of main and auxiliary winches is up to 120m/min which ensures the lifting efficiency
take the lead in industry.
■ The use of new slewing system ensures more stable starting and control of the slewing
operation and excellent micro-mobility.
■ Hydraulic oil tank capacity: 480L
Control system
■ CAN-bus instrument: CAN-bus instrument with a combined intelligent control electrical
system is used for easy reading of the traveling parameters at any time. The engine fault
warning function is applied, to ensure convenient and fast troubleshooting.
■ Load moment limiter: The adoption of high intelligent load moment limiter system can
■ comprehensively protect lifting operation, ensuring accurate, stable and comfort operation.
■ With fully security protection system, main and auxiliary winches are equipped with over-
roll out limiter and height limiters to prevent over-rolling out and over-hoisting of steel rope,
including tip-over and limit angle protection.
Luffing system
■ Dead-weight luffing provides more stable luffing operation at low energy loss.
■ Luffing angle: -2°~ 80°.
Telescopic system
■ Four-section boom is applied with basic boom length of 10.65m, fully extended boom
length of 33.5m, jib length of 8m and lifting height of fully extended boom length of 34m
respectively. Max. lifting height is 42m including jib.
■ It is made of fine grain high-strength steel with U-shaped cross section and with telescopic
operation controlled independent by single- cylinder rope.
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STC250 TRUCK CRANE
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INTRODUCTION
Superstructure
Slewing system
■ 360° rotation can be achieved with Max. slewing speed of 2.2r/min., providing stable and
reliable operation of the system. Single-row ball slewing ring is applied for strong bearing
capacity, good stability, high safety and good micro-mobility.
Hoisting system
■ The winch adopts the high-pressure automatic variable plunger motor, enabling automatic
switch-over between low load high speed mode and high load low speed mode, and
ensuring highly efficient operation and stable lifting and lowering of the load.
■ One main hook: 320Kg, one auxiliary hook: 90Kg. Wire rope of main winch: left-handed
wire rope 16-35W×7-1960USS, with length of 175m. Wire rope of auxiliary winch: left-
handed wire rope 16-35W×7-1960USS, with length of 105m.
Safety system
■ Load moment limiter: Load moment limiter calculation system based on lifting load
mechanical model is established using an analytical mechanics method, with rated lifting
accuracy up to ±3% through on-line non-load calibration, providing full protection to lifting
operation. In case of overload operation, system will automatically issue an alarm to provide
safety protection for manipulation.
■ Hydraulic system is configured with the balance valve, overflow valve, and two-way
hydraulic lock etc. components, thus achieving the stable and reliable operation of the
hydraulic system;
■ Main and auxiliary winches are equipped with over roll-out limiter to prevent over rolling-out
of wire rope.
■ Boom and jib ends are equipped with height limiters respectively to prevent over-hoisting
of wire rope.
■ Boom head is equipped with anemometer and press sensor to indicate the working
condition of whole crane in real-time, giving an alarm and cutting off the dangerous action
automatically.
Counterweight
■ Counterweight is 3800kg, no movable counterweight.
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STC250 TRUCK CRANE
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INTRODUCTION
Chassis
Driving cab
■ Cab is made of new steel structure self-developed by SANY, featuring excellent shock
absorption and tightness, which is configured with swing-out doors at both sides,
pneumatically suspended driver’s seat and passenger seat, adjustable steering wheel,
large rearview mirror, comfort driver chair having a headrest, anti-fog fan, air conditioner,
stereo radio and complete control instruments and meters, providing more comfortable,
safe and humanized operation experience.
Carrier frame
■ Designed and manufactured by SANY, anti-torsion box structure is welded by fine-grain
high-strength steel plate to provide strong load bearing capacity.
Axles
■ Axles 2 and 3 are drive axles and axles 1 is steering axles, axle and wheel differentials are
installed in axles 2 and 3.The use of welding process for axle housing provides stronger
load bearing capacity.
■ Type: Inline six-cylinder, water cooled, supercharged and inter-cooling diesel engine
Engine
■ Rated power: 213kW(340ps)/2100( r/min)
■ Environment-protection: Emission complies with EuroⅢ standard
■ Capacity of fuel tank: 300L
Transmission system
■ Gearbox: Manual / Automatic gearbox is adopted with 9-gear and large speed ratio range
applied, which meets the requirements of low gradeability speed and high traveling speed.
■ Transmission shaft: With optimized arrangement of the transmission shaft, the transmission
is stable and reliable. For most optimized transmission, face-tooth coupling transmission
shaft is used with large transmission torque.
Brakes system
■ Brakes system includes traveling brake and parking brake.
■ All wheels use the air servo brakes and dual-circuit brake system, engine is equipped with
an exhaust brake.
Suspension system
■ All axles adopt the plate spring suspension systems with plate spring passed 100,000
fatigue tests and with optimization of performance parameters of the front and rear plate
springs applied to ensure strength and also to provide comfort ridding.
Steering system
■ Hydraulic power mechanical steering systems are applied for axles 1 with unloading valve
installed in the steering gear.
Outriggers
■ Four-point supporting of the H-shaped outriggers ensures easy operation and strong
stability, with Max. span up to 5.3m×6.2m.They are made of fine-grain high-strength steel
sheet, movable outriggers are all hydraulic transverse telescopic.
Tyres
■ 11 (number of tyres) - type:12R22.5; bias tires are used, featuring with large bearing
capacity and durable use.
Electrical system
■ With 2*12V maintenance-free batteries, the crane power can be cut off manually via a
mechanical master power switch.
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STC250 TRUCK CRANE
9
DIMENSION
(10650~33500)
1375
17°
12°
400
3247
1575
4325
1350
2615
5300
3100
2200
2976.5
2323.5
5300
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STC250 TRUCK CRANE
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TECHNICAL PARAMETER
Type
Item
Parameter
Capacity
Max. lifting capacity
25t
Overall length
12750mm
Overall width
2500mm
Dimensions
Overall height
3550mm
Axle distance
4325mm/1350mm
Overall weight
30000kg
Weight
Axle 1
6500kg
Axle load
Axle 2,3
23500kg
Rated power
213kW/2100(r/min)
Engine
Rated torque
1050N.m/(1200~1400)rpm
Max.traveling speed
80Km/h
Turning radius
Min.turning radius
10m
Min.ground clearance
220mm
Traveling
Approach angle
17º
Departure angle
12º
Max.gradeability
38%
Fuel consumption per
37L
Min.rated range
3m
Tail slewing radius of swingtable
3.37m
Boom section
4
Boom shape
U-shaped
Base boom
962kN.m
Main performance
Max.lifting moment
Full-extend boom
544kN.m
parameters
Full-extend boom+jib
341kN.m
Base boom
10.65m
Boom length
Full-extend boom
33.5m
Full-extend boom+jib
41.5m
Outrigger span (Longitudinal×Transversal)
5.3m×6.2m
Max.single rope lifting speed of main winch (no load)
120m/min
Max.single rope lifting speed of auxiliary winch (no load)
120m/min
Working speed
Full extension/retraction time of boom
95s/60s
Full lifting/descending time of boom
45s/60s
Slewing speed
2.2r/min
Superstructure
Cooling and heating
Air condition
Chassis
Cooling and heating
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STC250 TRUCK CRANE
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OPERATION CONDITION
STC250 Working Ranges
50m
5°
17°
2
49
1.7
30°
1.55
48
1.4
1.3
47
1.25
1.15
1.05
1.15
46
0.9
0.95
1.05
45
0.82
0.9
0.95
5°
0.78
0.85
0.9
44
17°
0.75
43
30°
0.8
0.8
0.72
0.75
3
0.75
42
2.7
2.55
0.68
0.7
41
2.35
0.7
2
0.64
0.65
2.2
2.15
1.9
2
0.65
40
1.6
1.8
1.85
0.6
0.6
0.58
39
1.5
1.7
0.55
1.45
1.75
0.55
1.6
38
1.4
1.5
1.6
0.55
0.5
1.35
0.5
37
1.3
1.4
1.5
0.52
0.48
36
1.2
1.3
1.35
0.46
1.25
0.5
35
1.15
1.15
0.48
1.1
1.15
1
34
6.15
5.6
1.05
1
0.46
5.1
0.8
33
4.8
0.95
0.9
4.38
0.65
0.44
32
4.2
0.85
3.85
0.7
31
7.5
7.5
7.5
3.7
0.75
7.4
0.6
30
6.5
3.15
6.2
0.4
5.7
2.9
0.65
29
5.2
2.55
28
4.8
2.2
0.55
4.4
0.38
27
9.2
9.2
9.15
3.9
1.97
8.9
8.3
26
9.15
7.6
3.55
1.8
7.2
3.15
25
6.5
2.85
1.6
0.35
5.7
24
5.1
2.58
1.4
11
11
4.51
23
1111
11
2.2
1.3
22
9.5
3.95
8.5
2
7.55
3.55
1.1
21
6.7
3.15
1.8
20
15
5.8
19
14.9
5.1
2.8
1.6
14.9
13.8
13.3
18
14.5
11.3
4.55
2.58
9.8
17
4
1.4
2.21
18
18
8.25
16
1817
16.5
6.9
3.5
16
15
14.5
5.85
2.05
14
12.2
3.2
10
5.16
13
1.8
2.8
12
25
8.5
2524.3
4.6
11
21.8
18.9
7.5
17.3
10
15.8
4
2.6
1.65
9
6.25
8
12.2
7
6
3.5
5.5
5
9.7
4
3
2
1
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
30 31 32 33 34
Radius (m)
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STC250 TRUCK CRANE
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LOAD CHART
Unit:Kg
Prerequisites ：
① Boom operation condition(boom operation condition(full telescopic boom length/full telescopic boom+jib)
10.65 m the shortest 33.5 m the longest
② Outriggers length 6.2 m
③ 360° rotation
④ weight of counterweight 3.8 T
Main boom
Working range(m)
Working range(m)
10.65
14.5
18.3
22.1
25.9
29.7
33.5
3
25000
18000
3
3.5
25000
18000
15000
3.5
4
24300
18000
14900
11000
9200
4
4.5
21820
17000
14900
11000
9200
4.5
5
18900
16500
14500
11000
9150
7500
5
5.5
17350
16000
13800
11000
9150
7500
5.5
6
15800
14500
13300
11000
8900
7500
6
7
12200
12200
11300
9500
8300
7400
7
8
9700
10000
9800
8500
7600
6500
6150
8
9
8500
8250
7550
7200
6200
5600
9
10
7500
6900
6700
6500
5700
5100
10
11
6250
5850
5800
5700
5200
4800
11
12
5500
5160
5100
5100
4800
4380
12
13
4600
4550
4510
4400
4200
13
14
4000
4000
3950
3900
3850
14
15
3500
3500
3550
3550
3700
15
16
3200
3150
3150
3150
16
17
2800
2800
2850
2900
17
18
2600
2580
2580
2550
18
19
2210
2200
2200
19
20
2050
2000
1970
20
21
1800
1800
1800
21
22
1650
1600
1600
22
23
1400
1400
23
24
1300
24
25
1100
25
Number of lines
8
8
6
4
4
4
3
Number of lines
Telescoping condition(%)
Ⅰ
100%
100%
100%
100%
100%
100%
100%
Ⅰ
Ⅱ
0
17%
34%
50%
67%
84%
100%
Ⅱ
Ⅲ
0
17%
34%
50%
67%
84%
100%
Ⅲ
Ⅳ
0
17%
34%
50%
67%
84%
100%
Ⅳ
1.
Values listed in the table refer to rated lifting capacity measured at flat and solid gound under the lever state of the crane;
2.
Value above heavy line shall be determined by strength of the crane and under this line shall be determined by stability of the crane;
3.
Rated load values determined by stability shall comply with ISO 4305;
4.
Rated lifting capacity listed in the table included weights of lifting hooks (320kg of main hook and 90kg of auxiliary hook)and hangers;
5.
Rated lifting capacity with pulley at boom tip shall not exceed 3500kg
6.
If actual boom length and range are between two values specified in the table, larger value will determine the lifting capacity.
Quality Changes the World
STC250 TRUCK CRANE
13
LOAD CHART
Unit:Kg
Load Chart
(33.5m boom + 9/14.6m jib, outrigger fully-extended, 3.8t counterweight, 360°rotation)
Boom+Jib
Boom angle
33.5m+9m
33.5m+14.6m
(°)
Jib offset angle (°)
5°
17°
30°
5°
17°
30°
78°
3000
2200
1600
2000
1300
900
76°
2700
2000
1500
1700
1150
820
74°
2550
1900
1450
1550
1050
780
72°
2350
1800
1400
1400
950
750
70°
2150
1700
1350
1250
900
720
68°
2000
1600
1300
1150
850
680
66°
1850
1500
1200
1050
800
640
64°
1750
1400
1150
950
750
600
62°
1600
1300
1100
900
700
580
60°
1500
1250
1050
800
650
550
58°
1350
1150
950
750
600
520
56°
1150
1000
850
700
550
500
54°
1000
900
750
650
500
480
52°
800
700
650
550
480
460
50°
650
600
550
500
460
440
45°
400
380
350
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