Hollow Cup Motor No Cogging Effect Minimal Torque Fluctuation For Medical Devices
Advantages of hollow cup brushless motor:
1. Energy saving characteristics: the energy conversion efficiency is very high, the maximum efficiency is generally more than 70%, and some products can reach more than 90% (iron core motor is generally 20-50%).
2. Control characteristics: rapid start and braking, extremely fast response, mechanical time constant less than 28 milliseconds, and some products can reach less than 1 milliseconds (iron core motors are generally more than 100 milliseconds); In the high-speed operation state in the recommended operation area, the speed can be adjusted sensitively and conveniently
3. The driving characteristics and operation stability are very reliable, and the speed fluctuation is very small. As a micro motor, its speed fluctuation can be easily controlled within 2%.
In addition, the energy density of hollow cup motor is greatly improved, and its weight and volume are reduced by 1 / 3-1 / 2 compared with iron core motor with the same power.
Standard Type
| MotorParemeters(25℃) | Part No. | With Hall Sensors | LEC-4P4056 -001 | LEC-4P4056 -002 | LEC-4P4056 -003 | LEC-4P4056 -004 | |
| 1 | Nominal Power | P | W | 50W | 50W | 70W | 70W | | |
| 2 | Rated Voltage | U | V | 12 | 24 | 36 | 48 | | |
| 3 | No load speed ± 10% | N0 | rpm | 8030 | 8040 | 8470 | 9030 | | |
| 4 | No load current ±50% | I0 | m A | 584 | 292 | 209 | 173 | | |
| 5 | Nominal speed | nN | rpm | 6410 | 6520 | 7030 | 7610 | | |
| 6 | Nominal torque | MN | mNm | 89.7 | 89.6 | 95 | 94.2 | | |
| 7 | Nominal current | IN | A | 6.88 | 3.44 | 2.55 | 2.02 | | |
| 8 | Stall torque | MH | mNm | 466 | 497 | 595 | 636 | | |
| 9 | Stall current | IH | A | 33.3 | 17.8 | 14.9 | 12.7 | | |
| 10 | Speed constant | Kn | rpm/V | 682 | 341 | 239 | 191 | | |
| 11 | Torque constant | KM | mNm/A | 14 | 28 | 40 | 50 | | |
| 12 | Terminal resistance ± 10% | R | Ω | 0.36 | 1.35 | 2.42 | 3.78 | | |
| 13 | Terminal inductance | L | mH | 0.0464 | 0. 186 | 0.379 | 0.592 | | |
| 14 | Rotor inertia | J | g ·cm2 | 51.2 | 51.2 | 51.2 | 51.2 | | |
| 15 | Mechanical time constant | τm | ms | 9.41 | 8.82 | 7.74 | 7.73 | | |
| Characteristic parameters | Range of operation | Definition of wiring |
| 16 | Weight | 390g | | Winding of motor |
| 17 | length of shaft (Acceptance of customization) | | U | V | W |
| 18 | Ambient temperature -40℃ ~ +100℃ | | Red | Black | White |
| 19 | Max. winding temperature 130℃ | | Hall line |
| 20 | Number of phases 3 | | H+5V | HGND | HU | HV | HW |
| 21 | Number of pole pairs 2 | | Red | Black | Yellow | Brown | Gray |
| 22 | Length of cable(Length of standard 300mm±10mm),acceptance of customization | | Electric motor cable: Hall sensor: |
Motor assembly configuration
| Gearbox | Feedback device |
| Planetary | Encoder |
| Standard: | GPA42 | Match: MENC20- 1024 (Magnetic encoder) |
| Reduction ratio X :1 | Level 1 | Level 2 | Level 3 | Level 4 | Level 5 | Optional: ENC20- 1000/ 1024/2000/2048 (Grating encoder) |
| | 3.47 | 4.62 | 13.08 | 17.38 | 45.43 | 55.69 | 145.9 | 193.45 | 548. 14 | 672.00 | Resolver |
| | 3.76 | | | | 60.36 | 74.00 | 209.66 | 257.04 | 728.30 | 892.87 | If you need other encoders, please consult the manufacturer. |
| | | | | | 80. 19 | | 278.57 | | 967.67 | 1285.72 | Optional brake |
| | | | | | | | | | 1708.29 | | 24 VDC brake |
| | | | | | | | | | | | Drive |
| Length(mm) | | | | | | | | | | | Drive ( three rings) | Drive ( three rings) | Imported drive |
| 35 3 | 45 4 | 51 9 | 58 7 | 65 5 | LDP-4805 LDP-4810 LDP-4815 LDP-4815R | LDV-4805 (LDV domestic device 92%) LDM-4820 ( LDM domestic device 100%) | Elmo Copley |
| The above is the partial speed ratio of GPA42, all levels of speed ratio can be selected; Reducer temperature: -40℃ ~ + 100℃, if you need to match other reducer, please consult the manufacturer. |
| Harmonic gearhead Worm gear Low backlash |
Warehouse and production line:
FAQ:
Q1: Are you trading company or manufacturer ?
A: We are the manufacturer with five years’ experiences.
Q2: Do you accept OEM/ODM ?
A: We could accept ODM. Our R&D team have six experienced engineers. Tell us your needs, we can make it.
Q3: What I need to provide if I want to make a customized order ?
A: Please kindly tell us the voltages,speed,torque and overall dimension.
Q4: What if I don’t know the above data ?
A: Please tell us the usage of the product you want, we will give you professional advice.
Q5: How about the sample order ?
A: Samples are available. The extra fees due to the model type.
Q6: What’s the payment term ?
A: Payment by T/T or L/C. Sample order should be 100% prepaid. For bulk order, 50% deposit, the balance paid before shipping.
Q7: Which shipping way is available ?
A: Sample or small order by DHL,UPS,FedEx. Bulk order by Air or by Sea.
Q8: How long is the delivery time ?
A: Sample order takes 7-15 workdays. Bulk order takes 25-30 workdays.
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No Cogging Effect Hollow Cup Motor Minimal Torque Fluctuation For Medical Devices Images
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