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Experience a new level of flexibility and convenience with our advanced battery motor for drum and IBC pumps, developed in partnership with Einhell.
Engineered for professionals who need fast, powerful pumping in demanding environments, it delivers 420 W of cordless power, smart digital features and high flow rates. With an efficient brushless motor designed for reliability, it provides superior performance wherever you need it.
Furthermore, the new FBM 4100 motor is compatible with 4.0-8.0 Ah Einhell PXC batteries for ultimate run times - pump up to 5000 litres on a single charge. This battery pump solution delivers outstanding efficiency whether you're emptying drums, IBCs, or undertaking batch filling processes.
The FBM 4100 battery pump motor is the ideal solution when you need flexibility, process safety and cordless freedom. Applications include:
Its robust build, long run times and smart control technology make it suitable for heavy-duty use in many common pumping applications.
The FBM 4100 battery motor works with:
Whether upgrading your existing pump or purchasing a complete new pump set, you can increase efficiency, improve operator safety AND add intelligent functionality with the Flux FBM 4100.
With 2 x Einhell 4.0 Ah PLUS batteries, you can empty 28 drums or 5 IBCs (motor speed approx. 10,000 rpm), making it ideal for uninterrupted operation. Upgrade to 8 Ah batteries for even more performance!
Choose from a ventilated or enclosed housing depending on your environment and application – do you require maximum power output, or enhanced protection from steam, vapours or corrosive fumes?
Empties a 200‑litre drum in under one minute (water at 20 °C), delivering consistently high flow rates up to 218 L/min.
Switchable dry-run protection, six batch fill presets and smart accessory connection capability guarantees reliable and repeatable processes.
An intuitive LCD interface provides immediate visibility of speed, battery life and operating mode.
Empty 28 drums or 5 IBCs without battery replacement (at approx. 10,000 rpm)
Measured with water (20 °C) at free outlet (directly at the pressure connector), maximum flow rate measurement. Tolerance: ± 10 %. Example (approx. 10,000 rpm): 5,500 l in 32 min → approx. 28 × 200-litre drums or 5.6 IBCs. Measurement configuration: F 430 PP 50/38 (pump tube). Note: The values refer to the above setup and are for comparison purposes only. Other media, temperatures or configurations (e.g. hose length/diameter, fittings) will produce different results.
The Core version comes with all essential functionalities. The PRO version includes all Core features plus the powerful PRO 5-pin interface. View the functionalities of both models:
Programmable batch dispensing with 6 user adjustable presets
LCD display
LED workplace lighting
Dry-run protection
Basic operating modes
Direct connection of external devices
Provides power to float switches, flow meters & level sensors. Eliminates the need for additional control boxes or external electronics
Integration with FLUXTRONIC® for digital flow control and precise dispensing
Remote start/stop control from hand nozzles or remote switches
The PRO version is ideal for semi‑automated dispensing tasks and advanced process control.
Performance data and specifications of the FBM 4100 at a glance.
| Feature | Specification |
|---|---|
| Power | 420 W (ventilated), 260 W (enclosed) |
| Type | Brushless, maintenance free |
| Speed range | 5,500–12,250 rpm, adjustable in 10 steps |
| Max runtime output | 28 drums / 5 IBCs |
| Max delivery rate | 218 L/min, up to 30 m WC |
| Max viscosity | 3,000 mPas |
| Compatibility | 400 series pumps, VISCOPOWER F 570, MINIFLUX, many third party pump tubes |
| Battery | 2× 18 V / 4.0 Ah Li Ion (Einhell Power X Change) Other Einhell 18V batteries can also be used (without protective cover / with reduced IP protection) |
| Charging | ~75 minutes (Einhell Power Twincharger) |
| Protection | IP 24 (ventilated), IP 44 (enclosed) |
| Display | LCD |
| LED light | 200 lumens |
| Explosion protection | No |
| Weight | 2.8 kg including batteries & covers |
Maximum performance or maximum protection: choose the right option for your application.
Ideal for standard applications where high performance is beneficial. The motor is effectively cooled via internal air pathways.
Designed for harsh environments containing steam, acid fumes or aggressive vapours. External air cooling pathways prevent motor damage.
*Not suitable for use with Viscopower F 570 pumps
For maximum mobility and performance, the FBM 4100 is powered by the proven Einhell Power X‑Change platform. This makes the battery motor for drum and IBC pumps both flexible and future‑proof, providing long operating times and fast charging.
Flux recommends two 18 V, 4.0 Ah lithium‑ion batteries from the Power X‑Change PLUS series, ensuring high output under heavy duty operations. Einhell batteries of capacity 2.5 – 8.0 Ah are also compatible, offering scalability for longer runtime or reduced weight, if required.
For minimal downtime, the Power X‑Twincharger 3 A restores a pair of 4.0 Ah batteries to full charge in around 75 minutes, ensuring your pump system is ready for the next shift.
Enhance your battery pump system with compatible accessories:
FBM 4100 is compatible with all Flux F 400 series pump tubes, plus MINIFLUX, VISCOPOWER F 570, and many third‑party tubes (adaptor required).
To reduce waste, the adapter is available to purchase separately.
With 2 x 4.0 Ah batteries, you can pump out up to 28 drums at moderate flow rates; more at reduced speeds. However battery life will vary depending on media viscosity and density, discharge head, pipe length and pipe diameter.
The Pro version allows direct connection of float switches, level controls, flow sensors, and remote start-stop controls. Pro is also capable of programmable batch dispensing without the use of a switching amplifier. However, both Core and Pro models include LED work light, dry run protection and programmable batching timer.
Yes - when combined with stainless‑steel pump tubes such as the F 430 S FOOD. We recommend the totally-enclosed Core B and Pro B models with IP 44 protection for use in steam-prone environments.
If enabled, built-in dry‑run protection switches the motor off automatically to protect the pump and conserve energy. This reduces the risk of overheating and mechanical seal damage. Note this feature can only be used in conjunction with axial impeller pumps.
Use the motor menu: press the control knob → select dry‑run protection → confirm → set speed and start the motor. Motor operating current will be measured under normal pumping conditions. Subsequently, if low-load conditions are detected, the motor will be switched off automatically.
The FBM 4100 comes equipped with a full suite of smart controls - including variable speed control, 6 programmable batch‑filling timers, an intuitive LCD display, selectable dry‑run protection, LED work light and battery charge status, all accessible directly on the device.
Approximately 75 minutes for both batteries using the Einhell Power X‑Twincharger.
Yes - the battery motor for drum and IBC pumps works with all 18 V Einhell Power X‑Change batteries. With the protective covers fitted, 2.5 – 4.0 Ah PLUS batteries can be fitted, with the covers providing full IP 24 protection to the batteries. If the covers are removed, you can use higher‑capacity batteries - currently up to 8.0 Ah - for extended runtime.
Store batteries separately in a dry area. Keep the motor clean, dry, and free from dust.
We test the FBM 4100 under controlled, industry‑standard lab conditions to give you clear, comparable performance figures. These values help you benchmark the motor fairly against other competitors.
Actual flow rates and run-times will vary depending on the delivery head, liquid type, temperature, hose size & length and accessories fitted, eg. valves, dispense nozzles and flow meters. Therefore, performance may be higher or lower than laboratory data.
We aim to provide data that genuinely helps you choose the right pump solution. If you need advice tailored to your liquid or application, our team is happy to help. Our engineers have access to detailed pump performance curves.
For over 75 years, FLUX has engineered pumps and motors exclusively in Germany, combining in‑house production with long‑standing expertise to deliver reliable, high‑quality products.
The FBM 4100 sets a new benchmark for cordless pumping, bringing together high flow, long run time, smart digital controls, increased safety and true on‑site freedom. Designed for professionals who demand reliability and performance, it delivers consistent results whether you're transferring chemicals, re-packing into smaller containers, or working on remote sites. With robust engineering and power in reserve, it’s the battery motor built to keep your operation moving, shift after shift.
Discover how the FBM 4100 can transform liquid handling in your business – discuss applications, compare pump options and receive personalised support from our UK team today.
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