Propeller diameter: 850mm,
EAR: 0.83/Blade: 4/Turing direction: Left/Weight: 60kg
Material: Nickel Alu bronze( Cu3)
Inspection: 1.material test, 2.pitch,thickness ,width 3.weight 4.static balance 5.PT test 6.hole etc.
We design and supply propellers for container ships, cargo ships, tankers, tug boats, trawlers and fishing boats.
The material:
Cu1, Which contains Zinc, Bronze, Iron, Manganese. (But Nickel and Aluminium is not included). Cu3, contains nickel, Aluminium, Bronze, Iron,stainless steel and Manganese
Dimension: Based on your requirement
Our ability: Can design and manufacture the propellers, whose diameter could be from less than 1M to more than 8M.
All the propellers are approved by ABS,BV, CCS, DNV, GL, KR,LR NK and etc and obtained the authentication certificate of quality system ISO90001-2000.
| Model |
CRP20 |
CRP42 |
CRP85 |
CRP168 |
| Maximum Input Power KW |
45 |
100 |
210 |
300 |
| Frequency (Hz) |
61 |
135 |
285 |
400 |
| Maximum Input Torque(Sf=1) |
200 |
420 |
850 |
1675 |
| Maximum Input Speed |
2300 |
2500 |
2350 |
2000 |
| Reduction Ratio |
I |
1.93 |
2.5 |
2.68 |
3.46 |
| Propeller Diameter |
Max |
500 |
800 |
950 |
1150 |
| Min |
|
|
700 |
900 |
| PAL Length |
Max |
2250 |
2800 |
2800 |
4250 |
| Min |
350 |
875 |
980 |
1400 |
| Weight |
65 |
190 |
300 |
1370 |
| Weight increase per 100mm PAL length: X kg |
8 |
9 |
20.4 |
40 |
| Model |
CRP280 |
CRP330 |
CRP550 |
CRP1470 |
CRP1950 |
| Maximum Input Power KW |
480 |
620 |
920 |
1250 |
1650 |
| Frequency (Hz) |
650 |
843 |
1250 |
1700 |
2244 |
| Maximum Input Torque(Sf=1) |
2800 |
3300 |
5423 |
14740 |
19500 |
| Maximum Input Speed |
1800 |
1800 |
1800 |
1000 |
1000 |
| Reduction Ratio |
I |
3.96 |
4.04 |
5.059 |
3.257 |
3.58 |
| Propeller Diameter |
Max |
1550 |
1500 |
1800 |
2100 |
2300 |
| Min |
1250 |
|
|
|
|
| PAL Length |
Max |
4750 |
5000 |
|
|
|
| Min |
1750 |
1700 |
2600 |
2800 |
3000 |
| Weight |
2100 |
2800 |
5820 |
11000 |
16500 |
PAL (Propeller Axis Offset) is defined as the perpendicular distance between the power input flange centerline and the propeller centerline.
The power transmission capacity of azimuth thrusters depends on their maximum input torque. Actual operational torque may be affected by:
Thruster configuration
Prime mover type
Vessel characteristics
Consult our technical team before selecting thruster models.
Prime Mover Torque Specification
The prime mover's (typically diesel engine, hydraulic motor, or electric motor) rated output torque (Mp) is critical for proper thruster selection:
Formula:
Mp ≤ Sf × MR
Where:
Mp: Prime mover output torque (Nm)
Sf: Safety factor (Sf = fz × fl × fo × fs)
MR: Thruster rated input torque (Nm)
N: Prime mover output power (kW)
n: Thruster input speed (rpm)
Safety Factor Considerations
Each thruster model has specific allowable design torque values. Based on our decades of experience:
These values cannot be the sole selection criteria
All operational conditions must be thoroughly evaluated
Standard safety factor (Sf) requirements:
Cagon thrusters meet classification society standards for normal navigation
Ice-class thrusters require Sf between 0.33-0.67
Special installation applications must be approved by Cagon Marine technical team
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