Curved-Bottom Cleaning Head – 58mm E61 Double Shot Portafilter
NS300 arc-bottom rubber insert fitted onto metal cleaning head

Curved-Bottom Cleaning Head – 58mm E61 Double Shot Portafilter

Sale price$30.00
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Product Packaging + Overall Packaging↓↓↓

Cleaning Head – Curved-Bottom, Right-Angle Double Shot Portafilter (58mm) — E61 Compatible

This NS300Pro Cleaning Head is precision-matched for 58mm curved-bottom, straight-walled (right-angle) double shot portafilter baskets — the geometry used by the world's most popular traditional espresso machines. The E61 group head standard, found across Italian-heritage and prosumer machines, produces this distinctive curved-base portafilter profile. The full metal body and purpose-built curved rubber strip deliver flush, full-surface contact cleaning on every automated NS300 cycle, removing coffee puck residue thoroughly and consistently.

Compatible machines — E61 group head and curved-bottom portafilters:

  • Rancilio Silvia, Silvia Pro, and Silvia Pro X
  • ECM Classika, Mechanika, Synchronika, and Technika
  • Rocket Espresso Appartamento, Mozzafiato, and Cinquantotto
  • Lelit Bianca, Mara X, Elizabeth, and MaraX PL62
  • Quick Mill Achille and Vetrano
  • Profitec Pro 500, 600, and 700
  • Bezzera BZ10, BZ13, and Unica
  • Most commercial E61 group head machines

Curved-bottom head vs Universal head — which should I choose?

The Universal Cleaning Head (sold separately) works across a wide range of 58mm machines but uses a general-profile rubber strip. This curved-bottom head provides a more precise fit for E61-style curved baskets — the rubber strip is shaped to match the curved inner base, maximising contact area and cleaning effectiveness. For Rancilio, ECM, Rocket, or Lelit owners, this is the better choice.

When to replace your cleaning head:

  • The rubber strip is cracked, flattened, or no longer follows the curved profile
  • Coffee grounds remain after a full cleaning cycle
  • The metal body is bent or the rubber no longer clips securely

Specifications:

  • Compatible geometry: Curved (arc) bottom · right-angle (straight) walls
  • Shot type: Double shot · Basket diameter: 58mm
  • Body: Full metal construction · Rubber: Curved-profile cleaning strip
  • Compatible with:  NS300Pro (all versions)
  • Includes: 1 × cleaning head with rubber strip

Frequently Asked Questions

Which portafilter baskets are compatible with this cleaning head?

This cleaning head is designed for 58mm double-shot portafilter baskets with a curved bottom and straight, right-angle side walls. Its curved-profile rubber strip follows the basket base for consistent contact during the NS300Pro cleaning cycle.

Which espresso machines can use this curved-bottom cleaning head?

The cleaning head is suitable for many espresso machines that use 58mm E61-style curved-bottom portafilter baskets. Compatible machines include selected models from Rancilio, ECM, Rocket Espresso, Lelit, Quick Mill, Profitec, and Bezzera, along with many commercial E61 group head machines.

Is this cleaning head compatible with all NS300Pro versions?

Yes. The curved-bottom cleaning head is compatible with all NS300Pro versions. Before purchasing, check that your portafilter uses a 58mm double-shot basket with a curved base and straight side walls.

What is the difference between this head and the Universal Cleaning Head?

The Universal Cleaning Head uses a general-profile rubber strip designed for a wider range of 58mm baskets. The Curved-Bottom Cleaning Head uses a specially shaped curved rubber strip that better matches E61-style curved baskets, helping provide more precise contact during cleaning.

How do I know when the cleaning head needs replacing?

Replace the cleaning head when the rubber strip becomes cracked, flattened, loose, or no longer follows the basket's curved profile. Replacement may also be needed if coffee grounds remain after a complete cleaning cycle, the metal body becomes bent, or the rubber strip no longer clips securely into place.

What is included with the curved-bottom cleaning head?

The package includes one full-metal cleaning head fitted with a curved-profile rubber cleaning strip. The cleaning head is specifically designed for 58mm curved-bottom, straight-walled double-shot portafilter baskets.

Download Complete Detailed Instructions here

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