Nederman HD100, Instruction Manual

HD100

13

QMM033(02)

EN

9 

Using the centrifuge

9.1 

Before start-up

WARNING: 

Before any kind of activity, the SAFETY REGULATIONS 

(Chapter 4) must be read carefully, and the safety regulations must be strictly 

adhered to.
The centrifuge is designed for approximately 1-5 cm long chips. Before feeding 

the centrifuge solid parts should be separated to reduce wear and sound level.
Study Fig. 

1

 - 

Material flow in centrifuge

 - where a general description is 

provided.
Check the following points prior to putting into operation:

1. 

Free rotation. 

The drum should be able to be turned round by hand.

2. 

 Motor loading. 

Check zero-load power and compare with power during loading and 

rating data of motor. 

3. 

Observation of zero-load sound. 

Attention should be paid to the normal sound level of the equipment. 

NOTE!

A screaming  noise may be emitted by the V-belt when the drum 

is accelerating. This is normal.

4. 

Always start machine unloaded. 

If the machine is started when loaded then start load will exceed motor 

capacity. The centrifuge must not be fed until the correct speed of the 

drum has arised.

5. 

Feed the centrifuge evenly. 

Since the centrifuge works continuously it is of great importance that 

it is fed evenly to ensure a level of residual moisture in the centrifuged 

chips as low as possible. The feeding of the centrifuge should be done in 

intervals by a conveyor. As default setting on the  feeding conveyor 4 s 

stop time is used followed by 2 s run time. This value can vary depending 

on the shape of the material.

6. 

Supplementary adjustment. 

NEDERMAN Swarf Centrifuge is on delivery adjusted to cope with the 

majority of chip types unless otherwise specified. If a chip type should be 

run subsequently to installation which was unknown to us on the occasion 

of installation then a supplementary adjustment may be made.

The operator should always be aware of the normal power consumption of 

the motor, normal outflow of solid particles, the liquid content of the material 

and the level of vibration. By considering the above mentioned factors and 

observing modifications one can be quite sure that the centrifuge will function 

properly.

9.2 

Operation

Figure 1 shows the material flow through the centrifuge.

The material fed in through the top inlet hopper (1), glides down and is fed 

directly to the drum walls (6). On contact with the drum walls the material is 

accelerated to the speed of the drum at the periphery. During this acceleration