The Beurer BY 40 Single Electric Breast Pump is a compact, mains- or battery-powered pump for expressing breast milk at home or on the go. It uses vacuum technology designed to simulate a baby's natural drinking rhythm, with a soft silicone cushioned cup that sits gently against the breast, so you can settle into expressing at a pace that suits you.
What sets the BY 40 apart is how much control it puts in your hands: 10 stimulation levels and 10 pumping levels let you dial in a setting that feels comfortable, while a memory function recalls your last programmed levels the next time you switch on. A bright, illuminated display shows the selected mode, how long you've been pumping and the battery level, and the motor runs quietly at just 45 dB (measured at 1.5 m) at its highest level.
Powered your way, at home or away
The BY 40 runs from mains power using the included plug, or from 4 x AA batteries (included) when you're away from a socket — useful for South African routines where load-shedding or a long commute can leave you without a power point. On battery power at level 10, you can expect around 60 minutes of running time. Small, lightweight (710 g) and travel friendly, it's easy to pack and quick to assemble. If batteries and electricity aren't an option, the pump can also be used with a manual hand pump (sold separately).
How it works
- Two-phase expressing: Separate stimulation and pumping levels let you begin with a lighter stimulation setting before moving to a pumping setting, following the change in rhythm many babies use at the breast.
- Soft silicone cushion: The cushioned silicone cup attaches gently to the breast to help you stay comfortable while you express.
- Memory function: The pump remembers the last stimulation and pumping level you used and recalls it when switched on, so you don't have to reset your preferred settings each session.
- Automatic switch-off: The pump switches off automatically after 60 minutes; the recommended interval usage is 30 minutes on, 30 minutes off.
Comfort, hygiene and materials
The BY 40 is a SAHPRA-approved medical device in South Africa and is also approved as a medical device in the EU (CE certified). It's made to Beurer's standards using materials certified BPA-, phthalate-, PVC- and lead-free. The accessories are easy to clean and can be disinfected, giving you a hygienic setup for each session. The motor unit itself should never be wet or immersed in water, as it isn't protected against splashes or liquids.
Bottle compatibility
The BY 40 comes with a bottle and matching leak-free screw top, plus adapters for NUK and Avent bottles — so you can express straight into a bottle you may already be using for feeds.
Pandylane Pro Tip: Because the BY 40 takes standard AA batteries and can be paired with a manual hand pump (sold separately), it's worth keeping a spare set of batteries on hand as a backup for load-shedding or travel days when a plug point isn't available. Beurer recommends against using rechargeable batteries in this pump.
Best for
The Beurer BY 40 Single Electric Breast Pump is a great option for parents who:
- Want a single electric pump they can use on mains or battery power, at home or away
- Prefer adjustable stimulation and pumping levels to find a comfortable setting
- Value quiet, discreet operation and a compact, lightweight design
- Would like a pump that works with NUK and Avent bottles
It may not be the best fit if you:
- Need to double pump both sides at once
- Are looking for a rechargeable or wearable in-bra pump
Note: the manufacturer reports that 98% of testers recommend the pump. Expressing should feel comfortable — if you experience persistent pain, rubbing or discomfort, it's worth reassessing your fit or speaking to a midwife or lactation consultant. Keep the pump away from strong electromagnetic fields, which can affect its functioning. The BY 40 is covered by a 3-year warranty.
Care & Maintenance
Natural vacuum technology which simulates baby's natural drinking rhythm
Soft silicone cushioned cup which attaches gently to the breast
10 stimulation and 10 pumping levels, customisable
Memory function that recalls the last programmed stimulation/pumping level
Bright, clear illuminated display shows selected mode, duration of use and battery level
Mains or battery powered
Small, lightweight and travel friendly
Compatible with NUK & Avent bottles via included adapters
Accessories are easy to clean and can be disinfected
Certified medical device (SAHPRA and EU approved)
Made from BPA, Phthalate, PVC and Lead free materials
Avent Bottles
- 1x Beurer BY 40 Electric Breast Pump (motor unit)
- 1x Silicone tube
- 1x Pump attachment with silicone membrane and silicone valve
- 1x Silicone cushion / breast cup (standard size)
- 1x Bottle
- 1x Screw plug/top
- 2x Adapters for Avent and NUK bottles
- 1x Mains plug
- 4x AA batteries
- 1x Instructions for use