Labpol Auto series of Automatic Polishing Machines with individual sample loading

Description

The Labpol 8-12 Auto 3/6 is an advanced design of Automatic Polisher/Grinder in which polishing or grinding protocols can be created by entering the required parameters on a keypad and then stored as programs for future use.
 
The base cabinet contains the rotating platen, which is driven by a quiet powerful DC motor via a belt drive. Platen sizes of 8in diameter, 230mm, 250mm or 12in diameter can be fitted into the standard sump. The platen speed is adjustable from 50 rpm to 500 rpm and the platen can be rotated clockwise(CW) or counterclockwise(CCW).
 
Two polishing heads are available one with a sample holder for 3 samples up to 40mm dia and the other for up to 6 samples with a maximum sample sizes up to 50mm diameter can be fitted. The sample holder is rotated at a constant speed by the head motor. An arrangement of 3 (Auto3 )or 6(Auto 6) air cylinders is located around the rotating specimen holder shaft. The moving pistons in each air cylinder are fully extended by applying airline pressure and locate at the centre point of each sample position. In this way each sample is individually loaded. Sample levelling is unnecessary; the samples are a good fit in the sample holder and individually loaded by one of 3 or 6 pistons. This means that the polisher/grinder can be run with only one sample or as many as six.

 

  • Photograph shows Labpol Auto 6 sample holder

  • 1-6 samples up to 50mm/2in diameter can be accommodated

  • Adaptors available for sample sizes 1, 1.25, 1.5, 2in or 25, 30, 40, 50mm

  • 6 pressure fingers hold samples on grinding or polishing medium.

  •  Pressure can be adjusted

  • Platen size 250mm or 12in dia. for 6 samples

   

The polishing head can be rotated clear of the platen and the unit can be used as for manual polishing or grinding.
 
Using the Labpol 8-12 Auto 3/6 could not be simpler. The system is controlled by a logic controller and the inputs are provided by the keypad. A program can be created by scrolling through the following parameters:
 
PLATEN SPEED
POLISHING OR GRINDING TIME
WATER (for grinding) ON/OFF
PLATEN DIRECTION CW/CCW
DOSING UNIT (for polishing) ON/OFF
 
and entering values for a particular protocol.
The sample loading pressure can also be varied up to 5 bar. Up to 8 programs created in this
way can be stored and recalled for use as required.

  • input grinding/polishing program – speed, rotation,

  •  time,water on, doser on

  • Stores programs

  • Recall stored program

  • Edit programs

  • Manual polishing program

Specification
Labpol 8-12 Auto 6 Automatic Polishing
Machine for 6 Sample Mounts
 
Base Unit
Motor Drive: 0.75KW DC motor driving through a 7:1 pulley ratio
Variable Speed Controller: 50 – 500 rpm
Platen Size: 250mm, or 12in/305mm platen
Plate Guard and Insert

Auto 6 Polishing Head: -
Sample capacity: 6 Sample mounts up to 50mm /2in dia
Sample Loading: Individual pneumatic loading, variable pressure (0-4bar)
Pressure set separately
Sample Rotation: Fixed speed 120 rpm
0.18KW/0.25 HP AC motor

Operational System: -
Operation of the machine is via a person-machine (MMI) interface.

Main functions selected are:
Start/Stop Cycle
Select Program 1-8
Edit Program
Manual Mode – head disabled
 
Parameters to be set for each program are:
 
Platen direction, platen speed, time, water ON/OFF, dosing unit connected.
 
Storage of up to 8 programs
Dimensions & weight

Specification
Labpol 8-12 Auto 3 Automatic Polishing
Machine for 3 Sample Mounts

 
Base Unit
Motor Drive: 0.75KW DC motor driving through a 7:1 pulley ratio
Variable Speed Controller: 50 – 500 rpm
Platen Size: 250mm, or 12in/305mm platen
Plate Guard and Insert

Auto 6 Polishing Head: -
Sample capacity: 3 Sample mounts up to 40mm /1.5 in dia
Sample Loading: Individual pneumatic loading, variable pressure (0-4bar)
Pressure set separately
Sample Rotation: Fixed speed 120 rpm
0.18KW/0.25 HP AC motor

Operational System: -

Operation of the machine is via a person-machine (MMI) interface.

Main functions selected are:
Start/Stop Cycle
Select Program 1-8
Edit Program
Manual Mode – head disabled
 
Parameters to be set for each program are:
 
Platen direction, platen speed, time, water ON/OFF, dosing unit connected.
 
Storage of up to 8 programs
Dimensions & weight

Dosing Diamond/Alumina suspensions
Integrated Dosing System
The Labpol Auto 3/6 is also available with programmable dosing as part of data input on the keypad. Up to 3 suspensions bottles are mounted are mounted along the RH side of the cabinet. A triple spray nozzle unit is mounted on the top surface so that applying air pressure to a particular suspension causes droplets of the liquid to fall onto the platen.
Both the duration of the spray, the interval between successive sprays and which of the 3 liquids is to be used can be programmed.

 

Dosing integrated into programs
Dosing parameters are:

spray duration
interval between sprays

3 suspensions or extenders can
be used

Pressure system for spraying
Liquid. Individual pressures for
each liquid can be set

 

  • Position of sample head on
    12in platen

  • Pressure fingers activated

  • 2 Spray bars positioned to
    delivers diamond suspension
    or alumina suspension onto
    polishing cloth
     

  • Water nozzle visible when
    using grinding papers

Specification
Labpol 8-12 Auto 6 Automatic Polishing
Machine for 6 Sample Mounts with integrated Doser

 
Base Unit
Motor Drive: 0.75KW DC motor driving through a 7:1 pulley ratio
Variable Speed Controller: 50 – 500 rpm
Platen Size: 250mm, or 12in/305mm platen
Plate Guard and Insert

Auto 6 Polishing Head: -
Sample capacity: 6 Sample mounts up to 50mm /2in dia
Sample Loading: Individual pneumatic loading, variable pressure (0-4bar)
Pressure set separately
Sample Rotation: Fixed speed 120 rpm
0.18KW/0.25 HP AC motor

Dosing unit on base cabinet
Holder for 3 suspensions Spray bars positioned on platen Air pressure regulators for each liquid
Operational System: -
Operation of the machine is via a person-machine (MMJ) interface. Main functions selected are:
 Start/Stop Cycle
Select Program 1-8
Edit Program
Manual Mode – head disabled
 
Parameters to be set for each program are:
Platen direction, platen speed, time, water ON/OFF, dosing unit parameters- spray duration, spray interval.

Storage of up to 8 programs

 

Specification
Labpol 8-12 Auto 3 Automatic Polishing
Machine for 3 Sample Mounts with integrated Doser

 
Base Unit
Motor Drive: 0.75KW DC motor driving through a 7:1 pulley ratio
Variable Speed Controller: 50 – 500 rpm
Platen Size: 250mm, or 12in/305mm platen
Plate Guard and Insert

Auto 6 Polishing Head: -
Sample capacity: 3 Sample mounts up to 40mm /1.5 in dia
Sample Loading: Individual pneumatic loading, variable pressure (0-4bar)
Pressure set separately
Sample Rotation: Fixed speed 120 rpm
0.18KW/0.25 HP AC motor

 

Dosing unit on base cabinet
Holder for 3 suspensions Spray bars positioned on platen Air pressure regulators for each liquid
Operational System: -
Operation of the machine is via a person-machine (MMJ) interface. Main functions selected are:
 Start/Stop Cycle
Select Program 1-8
Edit Program
Manual Mode – head disabled
 
Parameters to be set for each program are:
Platen direction, platen speed, time, water ON/OFF, dosing unit parameters- spray duration, spray interval.

Storage of up to 8 programs

2 - Channel External Doser
A sophisticated doser for polishing suspensions which

can be used with any make of automatic polisher/grinder

This is an electronic doser with independent control of both Diamond suspension and lubrication fluid. The liquids are dispensed using air pressure to control the dose rate. The digital display is easy to read and shows the dose duration, the interval between successive doses and the air pressure. There are 2 air pressure regulators mounted on the rear panel one for each liquid. Controlled dispensing of diamond suspension leads to reproducible polishing results and more economical use of diamond.

2 - Channel External Doser

The liquids are contained in 2 dispensing bottles. The diamond suspension is continuously stirred by magnetic stirrer which is part of the storage unit. The stirrer has an intensity control. A dual spray bar with adjustable height is fitted on the top surface of the base cabinet and positioned to dispense either fluid onto the platen

Spray bar dispensing diamond suspension & lubricating fluid

 

Ordering Information
8-A12-601-00 Labpol 8-12 Auto 6 Automatic Polisher/Grinder 220V 50Hz 1ph
8-A12-602-00 Labpol 8-12 Auto 6 Automatic Polisher/Grinder 110V 60Hz 1ph
8-A12-610-00   Labpol 8-12 Auto 6 Automatic Polisher/Grinder 220V 50Hz 1ph with integrated doser
8-A12-611-00  Labpol 8-12 Auto 6 Automatic Polisher/Grinder 110V 50Hz 1ph with integrated doser
8-A12-603-00 Labpol 8-12 Auto 3 Automatic Polisher/Grinder 220V 50Hz 1ph
8-A12-604-00 Labpol 8-12 Auto 3 Automatic Polisher/Grinder 110V 60Hz 1ph
8-A12-612-00   Labpol 8-12 Auto 3Automatic Polisher/Grinder 220V 50Hz 1ph with integrated doser
8-A12-613-00  Labpol 8-12 Auto 3 Automatic Polisher/Grinder 110V 50Hz 1ph with integrated doser
8-A12-601-25 Set of 6 adaptors for 25mm samples
8-A12-601-30 Set of 6 adaptors for 30mm samples
8-A12-601-40 Set of 6 adaptors for 40mm samples
8-A12-601-50 Set of 6 adaptors for 50mm samples
8-D12-401-20 External Dosing Unit/ 2 suspensions 220V
8-D12-401-20 External Dosing Unit/ 2 suspensions 110V
8-A12-601-1 Set of 6 adaptors for 1in samples
8-A12-601-1.25 Set of 6 adaptors for 1 ¼ in samples
8-A12-601-1.5 Set of 6 adaptors for 1 ½ in samples
8-A12-601-2 Set of 6 adaptors for 2in