
Battery motor drum pump FBM 4100
The FLUX FBM 4100 is the world’s most powerful cordless drum pump motor, delivering 420W of performance—equivalent to corded units—without the cable hazard. Featuring a brushless (BLDC) motor with 80% efficiency, it is the first “intelligent” motor with dry-run protection and automated batch filling
Description
Specification
Downloads
Models
The FBM 4100 is available in two primary ventilation concepts, each offered in Core and Pro versions:
- Ventilated (Standard): Delivers a maximum power of 420 watts and is rated IP24.
- Closed (A-Version): A fully enclosed motor providing 260 watts of power with an increased IP44 protection class, ideal for aggressive environments with harmful vapors.
- Core vs. Pro: The Core version includes standard intelligent features like dry-run protection and batch filling. The Pro version adds a 24 V interface for connecting external devices like start/stop buttons or flow meters.
Applications
The motor is designed for diverse industrial environments:
- Remote Locations: Ideal where no mains connection is available or where cables would be a hindrance.
- Aggressive Environments: Used in electroplating or chemical handling where encapsulated electronics protect against corrosive vapors.
- Mobile Stations: Suitable for mobile collection trays or the mobile filling of lubricants.
How to Use
- Operation: Features an intuitive menu and a rotary knob for 10-stage speed control.
- Batch Filling: Users can pre-set and repeat filling processes across six memory slots.
- Visibility: An integrated LED drum light and an illuminated LCD display allow for clear monitoring of fill levels and settings.
- Compatibility: It is compatible with FLUX 400 series pumps and can even be used with other manufacturers’ pumps via an adapter.

Benefits
- High Efficiency: Uses brushless (BLDC) technology to achieve 80% energy efficiency and maintenance-free operation.
- Extended Runtime: Two 18 V/4 Ah batteries provide up to 60% longer runtime than comparable motors, emptying up to eleven 200-liter drums on a single charge.
- Intelligent Safety: Includes activatable dry-run protection to prevent pump damage and a battery management system (BMS) for longevity.
- Ergonomics: Provides a high weight-to-power ratio for comfortable one-handed operation.
- Universal Compatibility: While optimized for FLUX 400 series pumps, its versatility allows it to be used on standard competitor pump tubes—including Jessberger, Lutz, and Dino using an adapter. This cross-brand compatibility makes it an ideal universal upgrade for existing barrel pump inventory.
| Power | 420 W (ventilated housing) |
|---|---|
| Type | Brushless motor, maintenance-free |
| Speed range | 5,500 to 12,250 rpm, adjustable in 10 steps |
| Runtime / delivery quantity, max. | 28 drums, 5 IBC |
| Delivery rate, max. | 218 l/min, 30 m WS |
| Charging | Approx. 75 min (Einhell Power X-Twincharger) |
| Weight | 2.8 kg (including batteries and protective covers) |


