The Shenghe BL120 is a 48V 2000W right-angle BLDC gear motor designed for AGV traction, solar panel cleaning robots and heavy material-handling drives. The 3-stage planetary reducer steps the 3000 rpm motor down to 30 rpm output speed while multiplying torque to 300 N·m through a 30 mm hollow shaft. S1 continuous duty with >5000 hour service life and IP45 ingress protection makes this build suitable for 24/7 industrial use.
Production photos of the BL120-DC48V2000W3KF showing the right-angle gearbox, 30 mm hollow output shaft, NBSHZL nameplate, and the matched BLD6010 controller pairing. Click any thumbnail for the larger version.
Sourced from the BL120-DC48V2000W3KF technical archive. All values are factory-rated and verified on the production-line dyno bench.
| Parameter | Value |
|---|---|
| Model | BL120-DC48V2000W3KF |
| Rated voltage | 48V DC |
| Rated power | 2000 W |
| Rated current | 41.7 A |
| Rated speed | 3000 rpm ± 10% |
| Rated motor torque (pre-reduction) | 6.37 N·m |
| No-load current | ≤ 10 A |
| No-load speed | 3641 rpm ± 10% |
| Duty cycle | S1 (continuous) |
| Insulation class | B |
| Insulation resistance | > 20 MΩ |
| Dielectric strength | 660 V/S (phase) |
| Protection rating | IP45 |
| Operating temperature | -10°C to +45°C |
| Acoustic noise | < 60 dB at 40 cm |
| Service life | > 5000 hours |
The L-type right-angle gearbox bolts coaxially to the BLDC motor and exits 90° through a 30 mm hollow shaft. Three planetary stages deliver 1:100 reduction with 80% transmission efficiency.
| Parameter | Value |
|---|---|
| Gearbox frame size | 120 mm (L-type / 7GU-120) |
| Output configuration | Right-angle (90°) hollow shaft |
| Reduction ratio | 1 : 100 |
| Reduction stages | 3 (planetary) |
| Transmission efficiency | 80% |
| Rated output torque | 300 N·m |
| Rated output speed | 30 rpm (3000 rpm ÷ 100) |
| Hollow shaft diameter | 30 mm (keyway available on request) |
All motor and Hall signal leads exit through a single cable bundle with 1000 mm ± 10 mm length. Wire gauge and colour convention below are factory-standard.
| Signal | Function | Colour | Wire gauge |
|---|---|---|---|
| U | Motor phase U | Yellow | UL1007 6AWG |
| V | Motor phase V | Green | UL1007 6AWG |
| W | Motor phase W | Blue | UL1007 6AWG |
| + | Battery DC + | Red | UL1007 6AWG |
| − | Battery DC − | Black | UL1007 6AWG |
| Ha | Hall sensor A | Yellow | UL1007 18AWG |
| Hb | Hall sensor B | Green | UL1007 18AWG |
| Hc | Hall sensor C | Blue | UL1007 18AWG |
Full wiring manual (English) is shipped with every kit order. For OEM projects with bespoke connectors (Deutsch, AMP, Tyco), specify in the RFQ — terminations are added at the production line, not retrofitted.
The standard kit ships as three matched components from the same factory line. Single warranty, single engineering contact, no integration finger-pointing.
Production deployments, not marketing copy. Three application classes confirmed across Chinese domestic and Turkish export projects.
BL120 serves as the traction drive on rooftop and ground-mounted PV cleaning platforms. 30 rpm output at 300 N·m is well-matched to belt or wheel drives carrying a 30-80 kg cleaning robot across panel arrays. IP45 protection handles dust + occasional water spray. See /bldc-motor-for-solar-tracking/ for related solar applications.
48V battery-bus AGV builds use a pair of BL120 motors for differential-steering wheel drive. S1 continuous duty supports 24/7 warehouse operation; the right-angle output keeps motor profile inside the chassis footprint. See /bldc-motor-for-agv/ for the broader AGV motor catalogue and /heavy-duty-agv/ for AGV chassis platforms.
Transfer carts, lifters and end-of-line conveyor drives where 300 N·m output is required from a compact right-angle envelope. Confirmed Turkish EPC market deployment via independent integrator. See /electric-tank-carrier/ for transfer cart applications and /agv-drive-system/ for the heavy-duty drive engineering reference.
Engineering integration sequence for BL120 + BLD6010 + D003 kit. Estimated 45 minutes from unboxing to first benchtop run-in.
Verify 48V DC nominal (13S Li-ion or 4×12V lead-acid). BLD6010 covers 80-220V class; BLD22010 covers strict 48V-only.
Bolt motor to chassis / wheel bracket so 30 mm hollow output shaft is perpendicular to motor body. Leave 50 mm clearance behind motor for cable strain relief.
UL1007 6AWG power leads U / V / W to controller three-phase output; + / − to battery. UL1007 18AWG Hall signals Ha / Hb / Hc to controller Hall header. Bench-verify rotation before chassis-mounting.
RS485 link from D003 to BLD6010. Configure throttle mapping (single vs dual differential), cruise speed, and e-stop response on 3.5" TFT.
BLD6010 PID auto-tune at no-load, then re-tune under 50% load. Limit first 100 hours to 80% rated load for gearbox break-in. After 100 hours, full S1 continuous duty supported.
Concise B2B answers. The full FAQPage schema is loaded for SERP-rich snippet eligibility.
300 N·m at the gearbox shaft with 1:100 reduction and 80% transmission efficiency. The motor shaft itself produces 6.37 N·m at 3000 rpm rated speed before reduction.
Right-angle (L-type, 90°). The 30 mm hollow output shaft is perpendicular to the motor axis, preferred for AGV wheel drives and solar cleaning platforms where the motor sits parallel to the drive surface.
BLD6010 (DC 80-220V, 10A) or BLD22010 (DC 18-60V, 10A for strict 48V-only) controllers; D003-2000W-DR dual-motor remote with 3.5" TFT, cruise + e-stop. EXW Ningbo kit price ~$800 USD.
30 mm hollow shaft. Keyway available on request — specify size + orientation in the RFQ. Updated drawings issued per project.
Solar panel cleaning robots (traction), 48V AGV / AMR traction (differential drive), heavy material handling and transfer carts (300 N·m envelope). Confirmed Chinese domestic and Turkish export deployments.
Yes — S1 continuous with >5000 h service life, IP45 ingress protection, -10°C to +45°C operating range. Designed for sustained AGV-class duty, not intermittent S2/S3 burst loads.
< 60 dB at 40 cm under rated load. Quieter than equivalent-power brushed DC gear motors; suitable for indoor warehouse / lab / hospital deployments.
Both. Standalone motor ~$260 USD EXW; full kit (motor + controller + remote) ~$800 USD EXW. Motor-only build path supported with full wiring documentation.
Include voltage (48V default), application (AGV / solar / material handling), required quantity, kit configuration (motor only / motor + controller / full kit) and any custom mounting or shaft requirements.
