Sterling Food Processor SSPE 5 User Manual
Operating Instructions  
Conveyor Hopper  
SSPE 5  
Sterling Material Processing  
 
SSPE 5  
Sterling Material Processing  
5200 West Clinton Ave  
Milwaukee, WI 53223  
Telephone: (414) 354-0970  
Fax:(414) 354-6421  
www.sterlco.com  
Technical service:  
Service department  
Telephone: (800) 423-3183  
Edition: 04/01  
These operating instructions are for:*  
(* Please fill in personally)  
Serial number:  
Built in:  
Date of delivery:  
Number of delivery:  
Date of commissioning:  
Location:  
Group of machines:  
2
 
SSPE 5  
Sterling Material Processing retains all rights to change the information in these  
operating instructions at any time without notice.  
We assume no liability for any errors or direct or indirect damage resulting in con-  
text with these operating instructions.  
Copying, translation or publication in any form except for personal use of pur-  
chaser requires approval from Sterling Material Processing.  
All rights reserved.  
3
 
SSPE 5  
Table of contents  
1. Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
1.1. Warnings and symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
1.2. Explanations and information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
1.3. For your safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
1.4. For the safety of the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
2. Installation instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
2.1. Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
2.2. Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
2.3. Compressed-air supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
2.4. Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
3. Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
3.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
3.2. Controller CSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
4. Putting into operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
4.1. Setting the controller SSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
4.2. Alarm Messages displayed on the controller SSP . . . . . . . . . . . 20  
5. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
5.1. Maintenance intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
5.2. Replacing the outlet flap sealing ring. . . . . . . . . . . . . . . . . . . . . . 24  
5.2.1. Adjust the flap switch . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
5.3. Cleaning the hopper loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
5.4. Cleaning/replacing the filter cartridges of the cleaning unit . . . . 27  
4
 
SSPE 5  
6. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  
7. Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
8. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34  
o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
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SSPE 5  
1. Safety instructions  
These safety instructions apply to all persons within the range of  
action of the equipment.  
»
Please inform all persons within the range of action of the equip-  
ment of the direct and indirect hazards connected with the  
equipment.  
These operating instructions are to be used by all persons as-  
signed activities connected with the equipment.  
Knowledge of the English language is prerequisite.  
Ensure in each case that the operating personnel are familiar  
with the operating instructions and the function of the equip-  
ment.  
Observe the safety instructions of the connected conveying  
system.  
Safety instructions 6  
 
 
SSPE 5  
1.1. Warnings and symbols  
The following warnings and symbols are used in these operating instructions:  
This symbol indicates danger to life! Fatal or serious injury is  
possible if the corresponding instructions, regulations or warn-  
ings are not observed.  
»
This symbol indicates that serious injury is possible if the cor-  
responding instructions, regulations or warnings are not ob-  
served.  
L
This symbol indicates that extensive damage to equipment  
is possible if the corresponding instructions, regulations or  
warnings are not observed.  
F
This symbol indicates information important for becoming fa-  
miliar with the equipment, i.e. technical correlations.  
&
This symbol indicates that a technical term is explained at  
this point.  
$
Safety instructions 7  
 
 
SSPE 5  
1.2. Explanations and information  
Various terms and designations are used frequently in these operating instruc-  
tions to ensure clarity. Therefore please note that the terms used in the text stand  
for the corresponding explanations listed below.  
Equipment  
“Equipment” can mean an individual unit, a machine or an installation.  
·
Operating personnel  
The “operating personnel” are persons operating the equipment on their own re-  
sponsibility or according to instructions (minimum age: 16).  
·
Operator  
·
The “operator” of the equipment (production manager, foreman, etc.) is the per-  
son responsible for all production sequences. The operator instructs the operat-  
ing personnel of what is to be done.  
Operating instructions  
·
The “plant operating instructions” describe the interaction of the equipment, pro-  
duction sequences or methods. The plant operating instructions must be com-  
piled by the operator of the equipment.  
Equipment foreman  
·
When several operating personnel work on one machine, the “equipment fore-  
man” coordinates the sequences. The equipment foreman must be appointed by  
the operator.  
Trained personnel  
“Trained personnel” are persons who, due to their training, are authorized to carry  
out the required work in good practice.  
·
Safety instructions 8  
 
 
SSPE 5  
1.3. For your safety  
It is absolutely necessary that you observe the operating instructions for the cor-  
responding conveying system.  
·
·
The device is intended exclusively for conveying plastic granules and regrind.  
Any other usage is not permitted.  
This device is not suitable for processing foods.  
·
·
Before beginning maintenance work, set all compressed air piping on the device  
at zero pressure. Danger of accidents!  
The device may only be operated if all corresponding components have been  
properly connected and are in accordance with the relevant regulations.  
·
1.4. For the safety of the equipment  
It is absolutely necessary that you observe the operating instructions for the cor-  
responding conveying system.  
·
For the operation of the hoppers, a compressed-air supply is necessary.  
·
Never set the operating pressure of the hoppers at more than 6 bar (87.02) PSI  
(system overpressure).  
·
Install the hoppers in such a way that the outlet flap is hinged in a right angle to the  
direction of movement of the machine.  
·
Make sure that all plugs are connected properly.  
·
Observe the carrying capacity of the machine flange.  
·
Safety instructions 9  
 
 
SSPE 5  
2. Installation instructions  
These installation instructions are intended for persons with  
skills in electrical and mechanical areas due to their training, ex-  
perience and received instructions.  
»
Personnel using these installation instructions must be in-  
structed in the regulations for the prevention of accidents, the  
operating conditions and safety regulations and their implemen-  
tation.  
Ensure in each case that the personnel are informed.  
The installation instructions provided in the corresponding oper-  
ating instructions apply for all connected equipment.  
Observe safety regulations with regard to lifting gear handling  
All installation work must be carried out with the equipment dis-  
connected from electrical power and compressed air supply.  
For installation work taking place at heights of over approx.  
1829 mm. (6 ft.), use only ladders or similar equipment and  
working platforms intended for this purpose. At greater  
heights, the proper equipment for protection against falling  
must be worn.  
L
Use only suitable lifting gear which is in proper working order  
and load suspension devices with sufficient carrying capac-  
ity. Do not stand or work under suspended loads!  
Use suitable workshop equipment.  
F
Installation instructions 10  
 
 
SSPE 5  
Install the equipment such that all parts are easily accessi-  
ble; this facilitates maintenance and repair work.  
2.1. Transport  
For transport, only the appropriate lifting gear should be used (e.g. fork lift or  
workshop crane).  
Observe the carrying capacity of the lifting gear.  
»
Observe the safety instructions for the handling of lifting gear.  
Installation instructions 11  
 
 
SSPE 5  
2.2. Set-up  
The arrangement of the hopper loaders may vary depending on the type of de-  
vice to be conveyed on and the material used. Fastening onto fixed machine  
throats is provided by means of strap retainers. However, additional support of  
the hopper loader is necessary if the devices are not sufficiently capable of bear-  
ing the load.  
Mount the hopper loader in such a way that the outlet flap swings in a right-hand  
angle to the direction of machine movement. Please check during assembly that  
the admissible bearing loads are not exceeded.  
Please check that all connecting points are tight to ensure that the conveying per-  
formance is not impaired.  
It should moreover be observed, particularly if custom produced connecting parts  
are used, that the material discharged from the hopper loader must neither get  
into the open nor must it clog the filter surfaces (observe angle of repose!).  
Do not excessively load inlet nozzle of hopper loader,  
remove hose separately, if necessary!  
F
J
L
Assembly  
Installation instructions 12  
 
 
SSPE 5  
2.3. Compressed-air supply  
For operating the control valves and the cleaning unit, a compressed-air supply is  
necessary.  
Depressurize compressed-air supply lines which must be  
opened.  
L
Compressed air must be dewatered, dustfree and oilfree.  
F
Install a maintenance unit if required.  
Adjust pressure to a max. value of 6 bar (87.02 PSI) (system  
overpressure).  
Check compressed-air piping for correct installation and assembly.  
Check fittings, length and quality of the hose connections for agreement with re-  
quirements.  
The operating pressure is 5-6 bar (72.52-87.02 PSI) (system overpressure).  
Check the compressed-air supplied by the plant’s supply network.  
Adjust compressed-air pressure to 5-6 bar (72.52-87.02 PSI) (system  
overpressure).  
Connect the unit to the plant’s supply network by means of a hose.  
Installation instructions 13  
 
 
SSPE 5  
2.4. Electrical connection  
The electrical connection may only be carried out by trained per-  
sonnel.  
»
Other persons are not permitted to carry out the electrical con-  
nection.  
The rules of the local electricity board must be observed.  
Before beginning the electrical connection, make sure that the  
mains voltage and the power frequency are in accordance with  
the data on the name plate of the device.  
All work may only be carried out when the unit is at zero voltage  
and at zero pressure.  
1
2
3
4
5
6
7
KL (= flap switch)  
connection point diaphragm valve (SV)  
connection controller SSP  
bridged with 4  
SV (= diaphragm valve)  
bridged with 2  
+ 24 V  
0 V  
PE  
connecting plug “flap switch (KL)”  
connecting plug “conveyor control”  
Connection housing hopper  
Installation instructions 14  
 
 
SSPE 5  
3. Functional description  
This functional description is intended for all operating person-  
nel of the equipment.  
»
Prerequisite for this functional description is general knowledge  
of conveying units.  
Ensure in each case that the operating personnel are suffi-  
ciently informed.  
Functional description 15  
 
 
SSPE 5  
3.1. General  
The conveyor hopper is used for the automatic conveyance of freely flowing plas-  
tic granules, regrind and powder. The hopper can only function in connection with  
a single-station vacuum conveying system.  
The conveyor hopper functions according to the principle of suction conveyance.  
A high-performance turbine provides for the vacuum that is required to convey  
the material into the separator.  
In the separator the material is separated from air by several filter cartridges. Af-  
ter the conveying time is finished the turbine is switched off and the material emp-  
tied.  
The automatic filter cleaning takes  
place by adjustable compressed-air  
shocks (pulse duration).  
On the hopper, there is a separate  
on/off switch (A) and a function con-  
trolling device which indicates the fol-  
lowing operational modes:  
B
A
C
D
(B): lamp on - hopper switched on at  
the on/off switch (A); lamp flashes -  
the hopper is conveying  
(C): lamp flashes - error  
(D): lamp is on - hopper signals lack  
of material  
Connection housing hopper  
The filter-cleaning process takes place during the conveying  
process.  
&
The filter cartridges are cleaned in adjustable intervals (time  
interval).  
Functional description 16  
 
 
SSPE 5  
3.2. Controller CSP  
The setting for the conveying time and the line clear time are made via the keys  
(A1: “change-over” key, A2: “arrow key”) on the front of the control system. The  
values which have been set will be displayed on the display (B). The values which  
have been set are maintained after the machine has been shut off.  
3 LEDs indicate the respective modes of operation: pulse duration (C), time inter-  
val (D), without function (E).  
The pulse duration can be set to 0.5, 1.0 or 1.5 seconds.  
&
The time interval can be set from 5 to 20 seconds.  
When the unit is switched on all LEDs blink and the software  
version is displayed.  
C
B
D
E
A1  
A2  
Controller CSP  
Functional description 17  
 
 
SSPE 5  
4. Putting into operation  
This chapter is intended for operating personnel.  
Prerequisite for this chapter is general knowledge of the opera-  
tion of conveying units.  
»
Also prerequisite for this chapter is that the functional descrip-  
tion has been read and understood.  
Ensure in each case that the operating personnel are suffi-  
ciently informed.  
Observe the manual of the conveying system.  
F
Make sure that the On/Off switch of the hopper loader con-  
nection housing is in position “1".  
Putting into operation 18  
 
 
SSPE 5  
4.1. Setting the controller SSP  
It is only possible to set the pulse duration / time interval  
when the unit is not conveying any material.  
&
Setting the pulse duration  
Press the “arrow key”.  
The pulse duration (= duration of a cleaning pulse) which  
was last selected appears in the display.  
&
0.5, 1.0 or 1.5 seconds may be set for the pulse duration.  
Setting the time interval  
Press the “arrow key” and  
the “change-over” key.  
The time interval which was last selected appears in the dis-  
play.  
&
5-20 seconds may be set for the time interval between 2  
cleaning pulses.  
Putting into operation 19  
 
 
SSPE 5  
4.2. Alarm Messages displayed on the controller SSP  
If a disturbance occurs in the unit, an alarm message will be issued.  
An “E” appears in the display and an error number.  
&
“E2"  
If the control system becomes too hot during operation (>70°C (158°F) the “E2"  
alarm message is displayed and the unit is switched off.  
Ensure that the control system is sufficient cooled.  
The unit starts automatically after the cooling down phase.  
&
Putting into operation 20  
 
 
SSPE 5  
5. Maintenance  
This chapter is intended for persons with skills in electrical and  
mechanical areas due to their training, experience and received  
instructions.  
»
Personnel using the instructions in this chapter must be in-  
structed of the regulations for the prevention of accidents, the  
operating conditions and safety regulations and their implemen-  
tation.  
Ensure in each case that the personnel are informed accord-  
ingly.  
For maintenance work taking place at heights of over  
approx.1829 mm (6 ft.), use only ladders or similar equipment  
and working platforms intended for this purpose. At greater  
heights, the proper equipment for protection against falling  
must be worn.  
Use only suitable lifting gear which is in proper working order  
and load suspension devices with sufficient carrying capacity.  
Do not stand or work under suspended loads!  
Ensure that the electric motors/switch cabinets are sufficiently  
protected against moisture.  
Use only suitable workshop equipment.  
Before starting maintenance work, appoint a supervisor.  
Inform the responsible personnel before maintenance work on  
the system is started.  
Never operate the equipment when partially dismantled.  
All maintenance and repair work not described in this chapter  
may only be carried out by Sterling service personnel or autho-  
rized personnel (appointed by Sterling).  
Maintenance 21  
 
 
SSPE 5  
Disconnect the equipment from mains supply before starting  
maintenance procedures to ensure that it cannot be  
switched on unintentionally.  
L
Depressurize all compressed air piping of the equipment be-  
fore starting maintenance work.  
Please observe the maintenance intervals.  
F
Before starting maintenance work, clean the equipment of  
oil, fuel or lubricants.  
Ensure that materials and incidentals required for operation  
as well as spare parts are disposed of properly and in an en-  
vironmentally sound manner.  
Use only original Sterling spare parts.  
Keep record of all maintenance and repair procedures.  
Maintenance 22  
 
SSPE 5  
5.1. Maintenance intervals  
Daily:  
check warning signs on equipment for good  
legibility and completeness.  
Weekly:  
check the maintenance unit  
check the operating pressure in the factory  
ductwork system (max. 6 bar (87.02 PSI) system  
overpressure)  
Monthly:  
check the sealings on the filter cartridges  
(according to the accumulation of dust)  
Every six months:  
check filter contamination, if necessary clean or  
replace the filter cartridges  
check all electrical and mechanical connections  
for proper fit  
check the settings of the level probes (if available)  
check the sealing ring on the outlet flap  
Yearly:  
replace the sealing ring on the outlet flap  
The given maintenance intervals are average values.  
F
Check whether in your individual case the maintenance in-  
tervals must be shortened.  
Maintenance 23  
 
 
SSPE 5  
5.2. Replacing the outlet flap sealing ring  
Stop the conveying procedure.  
»
Switch off the hopper by means of the on/off switch on the con-  
nection housing.  
Switch off the conveying control by means of the main switch.  
Disconnect the unit from mains supply.  
Depressurize all system sections of the equipment.  
Remove the tension ring (A).  
Remove the upper part of the hopper  
loader with hopper lid.  
Draw the old sealing ring off the nozzle of  
the material outlet.  
Install the new sealing ring.  
Observe the direction of  
installation (B).  
F
Set the flap switch.  
Install the upper part of the hopper loader.  
Install the tension ring (A).  
Install the hopper loader.  
SSPE 5  
Order number sealing ring: ID 23098  
&
Maintenance 24  
 
 
SSPE 5  
5.2.1. Adjust the flap switch  
Remove the connecting plug “flap switch” from the connection housing of the  
hopper.  
Connect an ohmmeter to PINS 2 and 3 of the connecting plug “flap switch”.  
Release the nuts (A) of the flap switch (B) until the support can be displaced.  
Open the outlet flap (C) so far that  
the front tip of the outlet flap is  
approx. 30 mm ( 1.18 in) away from  
the sealing surface.  
Displace the flap switch (B) until  
the contact of the magnet switch is  
closed.  
Tighten the nuts (A) of the flap  
switch.  
Check the adjustment:  
C
B
A
In case of free hanging outlet flap  
(empty hopper loader) the contact  
of the magnet switch must be  
closed.  
Outlet flap  
If the outlet flap cannot be properly adjusted, replace the flap switch or the outlet  
flap with magnet.  
Install the hopper.  
Order numbers  
&
flap switch: ID 28839  
outlet flap with magnet: ID 23093  
Maintenance 25  
 
 
SSPE 5  
5.3. Cleaning the hopper loader  
Stop the conveying procedure.  
Switch off the hopper by means of the on/off switch on the con-  
nection housing.  
»
Switch off the conveying control by means of the main switch.  
Disconnect the unit from mains supply.  
Depressurize all system sections of the equipment.  
Open the tension ring (A).  
Remove the hopper loader lid.  
Remove the cleaning unit.  
Open the tension ring (B).  
Remove the upper part of the hopper  
loader.  
Clean the hopper loader by means of a  
vacuum cleaner.  
B
Install the upper part of the hopper loader.  
Close the tension ring (B).  
Mount the cleaning unit.  
Mount the hopper loader lid.  
Close the tension ring (A).  
Install the hopper.  
SSPE 5  
Maintenance 26  
 
 
SSPE 5  
5.4. Cleaning/replacing the filter cartridges of the cleaning unit  
Stop the conveying procedure.  
»
Switch off the hopper by means of the on/off switch on the con-  
nection housing.  
Switch off the conveying control by means of the main switch.  
Disconnect the unit from mains supply.  
Depressurize all system sections of the equipment.  
Clean the separator hopper each time you are changing the  
materials.  
F
Use only cleaning agents which fulfil the corresponding re-  
quirements.  
Only clean the separator hopper with compressed-air and/or  
a brush.  
The conveying capacity is diminished by a clogged filter car-  
tridge.  
&
Maintenance 27  
 
 
SSPE 5  
Removal  
Open the tension ring (A).  
Remove the hopper loader lid.  
Remove the cleaning unit.  
A
Release clamping devices of the filter car-  
tridges.  
Remove the filter cartridges from the inter-  
mediate platform.  
Clean the filter cartridges from the inside  
out by means of compressed air or re-  
place the filter cartridges by new ones.  
Installation  
Insert filter cartridges into the opening of  
the intermediate platform.  
SSPE 5  
Make sure that the sealing pad is tightly fitted between filter  
cartridges and intermediate platform.  
F
Mount clamping devices of the filter cartridges.  
Mount the cleaning unit.  
Mount the hopper loader lid.  
Mount the tension ring.  
Order number  
filter cartridge, short version:  
&
ID 83379  
Maintenance 28  
 
SSPE 5  
6. Technical data  
Basic Version  
• Conveying hopper made of stainless steel  
• Integrated high performance filter  
• Automatic filter cleaning  
• Integrated controller for cleaning  
Performance  
• Hopper loader capacity  
SSPE 5: approx. 5 l (0.28 cf)  
with extension module: max. 15 l (0.53 cf)  
• Typical conveying capacity  
SSPE 5: up to 250 kg/hr (550 lbs/hr)  
with extension module: 400 kg/hr (880 lbs/hr)  
Optional Features  
• Extension module  
Dimensions and data without obligation. Dimensions in mm (in.). Specifications may be subject to alterations.  
Technical data 29  
 
 
SSPE 5  
Dimension Sheet  
Dimensions and data without obligation. Dimensions in mm. (in.) Specifications may be subject to alterations.  
Technical data 30  
 
SSPE 5  
7. Spare parts list  
This parts list is only for the use of trained personnel only.  
All other persons are not permitted to repair or to change the  
equipment.  
»
Spare parts list 31  
 
 
SSPE 5  
Spare parts list 32  
 
SSPE 5  
Pos.  
Order no.  
26487  
85460  
85462  
97556  
86851  
98754  
83081  
83379  
85533  
28420  
35796  
26299  
85533  
28420  
28839  
26462  
23098  
23093  
Designation  
1
2
Pneumatic valve  
Vent valve  
Compressed-air container  
Solenoid valve  
Tension ring  
3
4
5
6
7
8
9
Sealing (1 m)  
Controller CSP (24 V)  
Filter cartridge, short version (4x)  
Tension ring  
Sealing  
Filter support  
Filter bag  
10  
11  
12  
Tension ring  
Sealing  
Flap switch  
Cover  
13  
14  
Sealing ring  
Outlet flap with magnet  
Spare parts list 33  
 
SSPE 5  
8. Accessories  
o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
Accessories 34  
 
 

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