Description
Made in SA
The design of the HIPPO HAMMER MILL is unique in that there are no chopping knives, as the material is being fed directly onto the tips of the rotating hammers in the direction in which the hammers are rotating.
The milled material is transported from the bottom of the mill housing by means of a four-bladed cast iron material handling fan fan mounted on the same shaft as the rotor and delivered to the cyclone.
A wide range of screens is available, from 25mm down to 0.6mm aperture.
Three drive options are available on the Hippo #57
– Electric drive – 45KW 380V 50HZ 2 Pole
– 53HP Water cooled JD diesel engine
– PTO Drive
The Hippo #69 is fitted with an large integrated cast iron material handling fan – which pulls milled material from the milling chamber, and the product is then pushed to a cyclone, fitted with an 8 sock dust bank – for practically dust free milling.
Fitted on all Hippo #69’s as standard is our innovative automatic infeed control system, that regulates the feed into the mill automatically, using the airflow from the material handling fan, to open and close the inlet of the hammer mill, depending on the airflow through the milling chamber (a fuller chamber, allows less airflow, which will then have the inlet move to a closed position preventing overfeeding. Once the milling chamber is emptied and airflow isn’t restricted anymore, the air flow will pull open the inlet again – allowing product to be fed in again – thus ensuring optimal performance from your hammer mill.
Capacities at a glance:
| Screen hole | Capacity (kg/hr) |
| 0.8mm | 1 000 |
| 1.6mm | 1 750 |
| 4mm | 4 100 |
| 8mm | 7 500 |
Rotor RPM: 3,900
Inlet size: 170mm x 430mm
Screen area: 4 040cm²
Tip speed at standard RPM: 104m/second
The mills are all a bolt together construction, which gives the mill an exceptionally long lifespan, and make replacing of parts easy and quick.
HIPPO HAMMERMILLS have been manufactured in South Africa since 1928, and parts are readily available from our warehouse, usually within 24 hour from order. HIPPO HAMMERMILLS from models Baby up to Size 69 are based on cast iron milling plates, which drastically increases the lifespan of the mill, compared to competitors that are manufactured of plate steel and welded together.
The Hippo 69 is a largest model in the commercial range of mills, with high capacity, and high quality parts. All milling tips are manufactured from Bennox (or optionally Hardox for highly abrasive materials) to ensure long lifetime on these parts.
All shafts and rotors are dynamically balanced before installation into the mill – to ensure minimal vibration and noise levels.
Hippo Hammer mill Particle Distribution – based on standard full hammer, 100m/s tip speed
For a technical datasheet – please click here: MH69 – Hippo 69
