Sinoboom TB20J Plus - Motor; Battery; Hydraulic Pump; Function Speed

TECHNICAL CHARACTERISTICS
TB20J Plus Maintenance Manual 15
© Feb. 2023
Table 3-8 Slewing reducer (PN.204020000002)
(Continued)
ratio
Static brake
torque
(without back
pressure)
200Nm (147.5ft-lb)
Starting oil
pressure
1.8MPa (261psi)
Motor
Table 3-9 Cycloid motor (PN.202020000005)
Model 255060A6312BAAAA
Rated RPM 890rpm
Maximum
output torque
138Nm (102ft-lb)
Rated pressure
15.5MPa (2250psi)
Table 3-10 Travel motor (PN.202020000024)
Model
HM3V38NS2RNNF1430
Type Plunger motor
Displacement
38cc/r
Allowable
pressure
21MPa (3046psi)
Rated RPM
3600rpm (with maximum
displacement)
Battery
Table 3-11 Maintenance-free storage battery
(PN.203100000061)
Rated voltage 12V
Capacity
110Ah
Cold starting
current
925CCA@–18℃ (0℉)
Reserve
capacity
190min
Hydraulic Pump
Table 3-12 Open-circuit variable-displacement pump
(PN.202010003068)
Type Plunger pump
Maximum
displacement
45cc/r
Rated pressure 320bar
Switch-off pressure
220bar
Rated RPM 2700rpm
Table 3-13 Closed-circuit variable-displacement
pump (PN.202010000054)
Type Plunger pump
Displacement
45.9cc/r
Rated pressure 280bar
Throttle blipping
pressure
21.5bar
Rated RPM 3000rpm
3.3 FUNCTION SPEED
Table 3-14
ITEM TIME
Raise the main boom 65～75s
Lower the main boom 65～75s
Rotate the turntable (360°)-stowed
78～86s
Rotate the turntable (360°)-fully
extended
139～179s
Extend the main boom 58～66s
Retract the main boom 53～62s
Rotate the platform (160°)
18～22s
Level the platform upward
50～60s
Level the platform downward
40～50s
Raise the jib boom
32～38s
Lower the jib boom
22～28s
Max drive speed (30m [98.4ft])-
stowed
20～25s
Max drive speed (30m [98.4ft])-
operating
88～108s