Sterling SMS 850 Manual Do Utilizador

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EJ5-615 
Chapter 2: Functional Description 
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Chapter 2:  Functional Description 
2-1  Models Covered in This Manual 
 
The models included in this manual are the Sterling SMS 850, 1200, 1500 and 2000 
Medium Duty Single Shaft Shredders.  The SMS Series is designed for processing scrap 
from wood industries—miscellaneous trim and panel scraps, furniture, injection and 
extrusion mold start-up purge, heavy wall parts, paper and cardboard, and film (baled and 
loose). 
2-2 General 
Description 
 
Mechanical Section 
After the machine has been switched ON, a hydraulically controlled “swing-style” ram 
pushes a quantity of material onto the slow-running profiled rotor.  The in-feed is 
controlled according to load. 
The material can be placed (unsorted) in the hopper mounted on top of the machine. Pay 
attention to this material; it cannot contain any other metal parts except for staples and 
nails. (The guarantee does not cover any damage to the machine as a result of metal parts 
being fed into the machine.) The material in the hopper is shredded by the cutters on the 
rotor. This shredding process is repeated as often as required until the whole diameter of 
the screen below the rotor has been reached. 
The shredder can also be switched off with material still in the hopper. 
Control 
The machine is fitted with an automatic shut-down; i.e. when set to automatic, the 
machine switches off after a pre-set period in the time relay. 
 
The ram feeds the shredding unit (rotor) with as much material as it is able to process. 
Upon reaching 70 to 90 % of rated current, the feeding of the ram will be stopped and 
automatically started again after the power consumption has fallen by 20% in comparison 
with rated current. If the high current is applied longer than 0.7 - 1.5 seconds, the main 
drive motor switches off and runs back after about 3 seconds standstill time. The ram 
plate also runs back while the rotor runs back. The drive motor then stops for another 3 
seconds before starting again. 
 
Duration of pauses and return and current settings can be adjusted. 
 
NOTE: 
Any alterations should only be carried out after consulting the manufacturer.