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36mm Diameter 3625 Brushless DC Motor With Planetary Gearbox

Designed for 6–48V operation, the 3625 platform provides several ratio and gearbox-length options for consistent current and power planning.

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36mm 3625 brushless DC planetary gear motor for 6-48V systems
Specs

Key Features

This model is a planetary BLDC gear motor built around a ratio ladder and gearbox-length buckets, making selection straightforward when you need scalable torque without changing the motor platform.

  • 6V–48V applied range supports broad system voltage architectures
  • Planetary gearbox ratio ladder (3.7 to 721) provides step-by-step output tuning for different load classes
  • Power is listed as 11.6W across the provided configurations, helping keep performance planning consistent
  • Gearbox length buckets (26.7 / 32.7 / 38.9 / 45.1 mm) support enclosure-controlled designs that must reuse mounts
  • Rated load current stays within the listed range (0.6–0.65A), helping driver sizing remain predictable while ratios change
technical Specs

Motors Specifications

Reduction ratio No-Load Rated Load Stall Gearbox Length (MM)
Rated Voltage (V) Speed (RPM ±10%) Current (A) Speed (RPM ±10%) Current (A) Torque (Kg.cm) Power (W) Torque (Kg.cm) Current (A)
3.7 24 1621 0.15 1250 0.65 0.5 11.6 1.6 1.3 26.7
5.2 24 1153 0.15 920 0.65 0.7 11.6 2.2 1.3
14 24 428 0.15 335 0.6 1.7 11.6 6 1.3 32.7
16 24 375 0.15 292 0.6 2 11.6 7 1.3
19 24 315 0.15 246 0.6 2.5 11.6 8 1.3
22 24 272 0.15 215 0.6 3 11.6 9 1.3
27 24 222 0.15 165 0.6 4 11.6 12 1.3
50 24 120 0.15 92 0.6 6 11.6 18 1.3 38.9
59 24 101 0.15 79 0.6 7 11.6 20 1.3
71 24 85 0.15 65 0.6 8 11.6 25 1.3
82 24 73 0.15 56 0.6 9 11.6 28 1.3
100 24 60 0.15 47 0.6 12 11.6 35 1.3
115 24 52 0.15 40 0.6 14 11.6 42 1.3
139 24 43 0.15 32 0.6 17 11.6 50 1.3
189 24 31 0.15 23 0.6 23 11.6 70 1.3 45.1
218 24 27 0.15 20 0.6 28 11.6 83 1.3
262 24 23 0.15 17 0.6 33 11.6 98 1.3
304 24 20 0.15 14 0.6 35 11.6 110 1.3
369 24 16 0.15 12 0.6 40 11.6 125 1.3
427 24 14 0.15 10 0.6 45 11.6 140 1.3
516 24 11.6 0.15 9 0.6 60 11.6 190 1.3
596 24 10 0.15 8 0.6 60 11.6 220 1.3
721 24 8.3 0.15 6.5 0.6 60 11.6 240 1.3

For additional customization or reference configurations, please feel free to contact us.

Why Choose us

SLW Motor Highlights

  • Speed–Torque Staircase for Selection

    This table gives clear steps from higher speed and lower torque to very low speed and high torque, so you can pick a ratio based on output behavior rather than trial-and-error tuning.

  • Gearbox Length Buckets That Protect Your Enclosure Design

    Ratios group into a small set of gearbox lengths (26.7 / 32.7 / 38.9 / 45.1 mm). That helps you keep the same housing and mounts while expanding variants by ratio.

  • Consistent Power Planning Across Ratios

    Power stays listed at 11.6W in the provided configurations, which helps keep system expectations stable while you switch ratios for different loads.

  • Driver Sizing Becomes More Predictable

    Rated-load current stays within a narrow band (0.6–0.65A), so you can keep driver selection stable while you use ratio changes to solve mechanical output needs.

Custom

Beyond the Standard: Performance Customized

  • 01
    Voltage Architecture Fit (6–48V)
    We confirm your supply range and control method first, then align the configuration so the motor fits your voltage architecture without forcing a redesign.
  • 02
    Gearbox Length Bucket Lock-In
    If your enclosure has a strict maximum gearbox length, we lock the allowable length bucket first, then shortlist ratios that stay inside it.
  • 03
    Output Behavior Definition by Ratio Steps
    We map your target RPM and required torque to the nearest ratio step, so the selected option lands close to your motion feel without excessive compensation.
  • 04
    Driver Margin Under Load Transitions
    We evaluate current headroom for startup and load spikes so the driver stays stable when the mechanism sees friction changes or brief overloads.
  • 05
    Variant Strategy for Multi-Ratio Product Lines
    If you plan multiple SKUs, we group ratios into a small set of gearbox-length buckets so you can reuse mounts and keep BOM changes contained.
  • Voltage Architecture Fit (6–48V)
  • Gearbox Length Bucket Lock-In
  • Output Behavior Definition by Ratio Steps
  • Driver Margin Under Load Transitions
  • Variant Strategy for Multi-Ratio Product Lines

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FAQ

Frequently Asked Questions

If you share your available space and the driven load type, we can help narrow the most suitable configuration quickly.

How do I choose between the ratios quickly?
Match the rated speed to your target output RPM first, then verify rated torque gives enough margin for your real load.
Why does gearbox length change across ratios?
Higher reductions typically need more gear stages, which increases gearbox length. This table lets you choose speed, torque, and length together.
Which ratios fit the shortest gearbox envelope?
The lowest ratio option lists the shortest gearbox length, so it suits the tightest installation spaces.
What should I share so you can shortlist the best options?
Share your allowed gearbox length, target output RPM, load torque estimate, duty cycle, and supply voltage range.
Is this suitable for repeat production across variants?
Yes. You can standardize the motor platform and expand variants mainly by ratio while controlling gearbox length buckets.
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