Full Range of Grinder Parts
Original & tested compatibles: burrs (conical & flat 38–83 mm), motors (230 V, geared), mechanical parts (hoppers, dosing arms, gears), electronics (switches, control boards, thermostats).
Identifying Your Grinder
- Model & brand: on grinder plate (e.g. Mazzer Super Jolly, Eureka Mignon, DeLonghi KG520).
- Burr size: outer/inner diameter (e.g. Ø63 mm, Ø50 mm, Ø38 mm).
- Burr type: conical (vertical) or flat (horizontal).
- Motor specs: check 230 V rating on nameplate.
Parts by Brand & Type
- Mazzer: Super Jolly, Major, Mini, Robur – burrs, motors, arms
- Eureka: Mignon, Olympus, Zenith – hoppers, switches, detents
- DeLonghi: KG520, KG521 – aroma hoppers, domestic motors
- Lelit: PL042EM, PL82T – conical 38 mm, 230 V motors
- Saeco/Gaggia: vertical motors, ceramic burrs, feeders
- Pro Grinders: Rancilio, Fiorenzato, Nuova Simonelli, Quamar
Common Issues & Fixes
- Uneven grind: worn burrs → replace burr set (codes: 186C, 187C, 191C).
- Motor not starting: faulty switch or burned motor → inspect start button or gear motor.
- Bean jams: clogged hopper → clean or replace hopper.
- Overheating: insufficient cooling → rest between grinds, check motor fan.
- Oily build-up: rancid residue → deep clean with specific detergents (Cafetto, Urnex).
Flat vs Conical Burrs
Conical burrs: faster grind, less heat, ideal for espresso. Flat burrs: precise, uniform particles, great for filter coffee. Choose based on extraction style.
Top Serviced Models
Home: DeLonghi KG520/521, Lelit PL042EM, Eureka Mignon.
Pro: Mazzer Super Jolly, Major, Eureka Olympus 75.
Vintage: Mazzer Mini, Rancilio MD40.
Not listed? Write to us.
Maintenance Tips
- Burr cleaning: every 3–4 kg of coffee with stiff brush and specialized cleaners.
- Replacement interval: 6–12 months of heavy use or when grind consistency drops.
- Hopper cleaning: weekly wipe to remove oils.
- Temperature: keep under 40–45 °C during grinding.
Trademarks are owners'; mentioned for compatibility only.
Grinder FAQ
How do I find my grinder model?
Check the nameplate on the body or underside. Note burr size and motor voltage for replacement parts.
How long do burrs last?
OEM burrs last 6–12 months under heavy use; duration depends on bean type, usage frequency, and maintenance.
Grinder noises but no grind
Check for bean blockage. If clear, likely gear motor or worn burrs. Contact us.
Flat vs conical burrs?
Conical: quicker, cooler, good for espresso. Flat: more precise, uniform, suited for filter. Depends on brew method.
How to clean oily coffee residue?
Use Cafetto or Urnex cleaners and a stiff brush. Avoid hard grains like rice. Clean every 3–4 kg.
