| Parameter | Specification |
|---|---|
| Motor Model | XQD-6.3-1SW |
| Motor Type | Series Wound DC Auxiliary ) |
| Rated Power | 6.3 kW |
| Rated Voltage | 48V DC |
| Rated Current | 172.8 A |
| Rated Speed | 1550 rpm |
| Speed Range | 1550–3200 rpm |
| Duty Cycle | S2-15min |
| IP Rating | IP44 |
| Insulation | Class F |
| Mounting | Custom mounting interface |
| Shaft | Inner cross spline |
The XQD-6.3-1SW is a series wound DC motor — it belongs to the brushed DC motor family. Current reaches the rotor through carbon brushes and a commutator, the same as compound and shunt DC motors. What makes series different: the field winding is wired in series with the armature, so the same current flows through both. The result is very high torque at low speed — the motor pulls hardest exactly when a hydraulic pump needs to pressurize from rest — with speed rising naturally as the load eases. Plan on inspecting the brushes every 1500–2000 hours in intermittent duty; the brush caps are accessible on the housing and no special tools are needed.
A hydraulic pump is at its hardest the instant the system calls for flow — the pump has to break free from rest and bring the system up to pressure. A series wound motor naturally delivers its peak torque at that moment: because the field winding carries the full armature current, torque rises steeply as speed drops. As flow stabilizes and pressure holds, the motor speeds up on its own. That is why series wound is the standard choice for intermittent-duty hydraulic pump motors on battery-electric equipment. Two limits to respect: this motor is built for S2-15min duty (6.3 kW for 15 minutes, then cool), and 3200 rpm is the no-load top end, not a running speed — keep the working speed in the 1500–2800 rpm band.
Not sure which auxiliary motor fits your machine? Contact our engineering team with your battery voltage, pump model, flow / pressure requirements and mounting drawing for a matched drive.
Q: Is this a traction motor or an auxiliary motor?
A>Auxiliary. The XQD-6.3-1SW is a series wound DC motor for non-traction loads — hydraulic pumps, industrial power packs, agricultural and construction machinery hydraulics. For driving the main wheels, see our series-wound DC traction motor range.
Q: Do I need a motor controller, and what rating?
A>Yes — connecting the motor straight to a battery spins it to its no-load speed with no control over pump pressure. Use a 48V DC chopper rated 200–250 A to handle the 172.8 A draw and the start-up inrush. Tell us your pump and battery and we will recommend a matched model.
Q: Can you customize the mounting, spline or voltage?
A>Yes. OEM/ODM supported — the mounting face is already built to your pump or manifold drawing, and the inner cross spline shaft, voltage (24V / 72V), terminal box orientation and IP rating (IP54 / IP65) can all be customized. Send your pump spec to our engineering team.
Baoluo is a traction-motor manufacturer based in Changzhou, China, with in-house production and load testing. The certificate above shows our factory certification.
Armature and stator winding on our production line. Every motor is hand-built and tested before shipment.
Warranty: 18 months from the delivery date. MOQ: 1 unit. Lead time: 1 month after order confirmation.
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