Kees van der Westen Speedster — Dual boiler
Kees van der Westen Speedster
Dual boiler F5 · Professional

Kees van der Westen Speedster

Estimated price range
11000–25000 € ≈ $11,880–$27,000
Editorial estimate · updated sep 2026

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Data from official source

The Speedster is a single-group machine with a dual boiler setup in stainless steel: a 3.5-liter steam boiler and a 2.1-liter saturated coffee boiler, each with its own electronic temperature controller. Coffee temperature is governed by a PID.

Pre-infusion runs through a two-phase, spring-loaded progressive cylinder that builds pressure gradually before reaching full extraction pressure of 9 bar; the mid-lever position also allows a manual pre-infusion phase on mains pressure alone, before the pump engages. A pressure gauge wired to the pre-infusion cylinder shows the actual pressure on the coffee bed, not pump pressure. An optional Idro-Matic, a second, hand-adjustable pre-infusion cylinder with its own knob, lets you set where the pressure build-up starts and ends. The steam wand is stainless steel; the optional flip-flop lever can be locked open or cracked gently for a single cup.

The machine needs to be connected to the water mains and to a trapped drain, near a water treatment system, and the rotary pump sits outside the machine with its own motor. During long idle periods, an Eco mode lowers boiler temperature to save energy. It's a machine for anyone who can dedicate a corner with water and drainage to it, and wants to control pre-infusion by hand.

01 · Verified data

Technical specifications

Weight 45.0 kg (99.2 lb)
Parameter Value Source
Weight 45.0 kg (99.2 lb) manufacturer website
Power supply 220-240 V / 50-60 Hz manufacturer website
Boiler architecture Dual boiler Declared by the brand
PID control Yes Declared by the brand
Brew pressure 9 bar Declared by the brand
Pump type Rotary Declared by the brand
Pre-infusion Passive spring Declared by the brand
3-way solenoid valve Yes Declared by the brand
Group head type Saturated group Declared by the brand
Boiler material Stainless steel Declared by the brand
Steam wand Manual steam wand Declared by the brand
Plumbable Yes Declared by the brand
Pressure gauge Yes Declared by the brand
02 · Summary

Pros and cons

In favour

  • Dual stainless-steel boiler system with independent temperature control for steam and coffee.
  • Coffee temperature governed by a PID.
  • Two-phase, spring-loaded pre-infusion cylinder.
  • Pressure gauge wired to the pre-infusion cylinder: reads the actual pressure on the coffee bed, not pump pressure.

Worth knowing

  • Requires a fixed water-mains connection and a dedicated trapped drain.
  • The external pump, with its own motor, needs its own dedicated space beyond the machine. source
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