This document provides descriptions of various types of equipment used for sample preparation in a laboratory setting, including: - Jaw crushers and roll crushers for primary and secondary crushing of samples like coal, limestone, and minerals. - Hammer mills and cross beater mills for pulverizing samples into fine particles using hammers or beaters. - Barrel mills that grind materials into powders using a rotating stone and rings in a dust-free vessel. - Rod/ball mills with stainless steel, rubber-lined, or ceramic vessels for grinding with rods or balls. - Cascade and micro splitters to divide samples into equal portions for testing using vibrating feeders and

1. SAMPLE PREPARATION
EQUIPMENT

2. MACSALAB JAW CRUSHERS
The range of MACSALAB Jaw Crushers is ideal for primary crushing of samples
of moderately hard materials for example:
• Coal • Limestone • Ore
• Minerals • Bricks & Rubble
Units are sturdily constructed in Cast Iron and utilise reversible hardwearing
Manganese Steel jaws.
Sizes Available:
Units are simple to operate and easy to maintain.
MACSALAB ROLLS CRUSHERS
MACSALAB Rolls Crushers are designed for secondary reduction after jaw crushing. These smooth roll crushers will rapidly
reduce coal, ore and hard rock from a maximum feed size of 20mm to fine sand. Ruggedly constructed & easy to operate.
Breakage of material is by nipping action with minimal fines generated.
Fluted rolls are also available for both units.

3. MACSALAB 200 CROSS BEATER LAB MILLS (PULVERISERS)
The 200 Cross Beater Lab Mill is used for crushing:
 Coal
 Chemicals
 Spices
 Bricks
 Soil
 Ores & Minerals
and many more materials in the medium hard range.
Once the material is fed into the feed chute, it quickly flows into the mill grinding chamber where it is pulverised
against the chamber lining by impact with the fast moving hardened hammers.
Once the particles reach the required size they are discharged through interchangeable
screens into the collection bag or receptacle.
MACSA 300 OVERHUNG HAMMER MILLS (DISINTEGRATORS)
The MACSA 300 Overhung Hammermill (Disintegrator Mills) have been introduced to
satisfy the needs of laboratories, research institutions and industry requiring size
reduction on a semi production scale. The standard unit is powered by a 4kW drive
with a 380/525 Volt motor.
MACSA 300 Overhung Hammermills have been successfully installed in the following industries:
• Coal • Minerals & Ore • Sugar
• Food • Chemicals • Friable Grain
Once the particles reach the required size they are discharged through interchangeable screens
into the collection bag or receptacle.

4. MACSA Impact Hammer Mills are available in several sizes and have been successfully installed in the following
industries:
• Coal • Fertilizer • Abattoir by-products • Hard Chemicals
• Minerals & Ore • Hard rubber / plastics • Lime • Brick & Tiles
• Friable grains • Quarries • Wood chips • Particle board

MACSA Impact Hammer Mills are specially designed and fabricated for the reduction of medium to hard friable
materials. Machines can be designed & manufactured with different combinations of hammers, screens, motors &
housings to suit your specific application and requirements.
Test work can be conducted on your product sample at our on-site facility. Test work is used to select and size
appropriate machines and can include through-put tests, milling tests and particle size distribution analysis. Final
product size is defined by product, feed rate, fixed rotor speed and screen size.
The dynamically balanced rotors can be fitted with the following
beater configurations:
 Three replaceable hard-faced swing beaters mounted on swinger plates
 Multiple replaceable hard-faced swing hammers mounted on three
 separate beater pins
 The mill housing is fully lined with replaceable liner plates.

5. MACSALAB SINGLE POT BARREL MILLS
Variously known as a Barrel Mill, a Swing-Mill, a Ring Mill or a Stone & Disc Mill, this highly efficient grinding machine
comprises a steel vessel containing a solid steel bar (stone) and one or two steel rings which oscillate with a rotary
motion to grind materials from approximately 10mm lumps down to powders finer than 50 microns.
A particular feature of the MACSALAB Barrel Mill is that operation is dust free and, due to its ease of cleaning, the
ground product can be fully recovered.
The 100cc & 250cc vessels are quickly and securely clamped to the machine by means of cam-action levers and swing-
arms, and the oscillating motion is imparted to the vessels by mean s of a specially designed out-of-balance drive
mechanism The unit is supplied with a sound-proof cabinet, which also contains a
motor starter and timer.
A Six-pot Barrel Mill utilizing 6 x 100cc grinding vessels is also available.
Grinding vessels can be supplied in Chrome Steel or Carbon Steel as standard,
with Tungsten Carbide vessels being available on request.

6. MACSALAB Rod / Ball Mill Vessels are available in 304 & 316 Stainless Steel, Rubber-liner Mild Steel as well as Ceramic (Alumina).
Rods are available in Stainless Steel and Arlicite. Grinding Spheres (balls) are available in Zirconia, Alumina and Arlicite. Quantity
and sizes to clients’ specifications.
MACSALAB Drive Rolls for Rod / Ball Mills are rubber coated and manufactured in Double Roll models. The rolls are 120mm
diameter x 1200mm long and powered by a 0.37 kW 220 V motor with variable speed controller.
SIZES: Rod / Ball Mills are available in 5, 7, 10, 15, 20 & 30 litre capacities

7. MACSALAB 6, 8 & 10 WAY CASCADE SPLITTERS
MACSALAB Cascade Splitters are widely used in mining laboratories and
refineries for free flowing material. The Cascade Splitter comprises a
Stainless Steel feed hopper (i.e. 20, 10 or 5 litre capacity to client’s choice),
vibrating feeder with variable speed control, Steel sample cutter and Stainless
Steel 1 litre collection cups, as standard.
MACSALAB 8 & 16 WAY MICRO SPLITTERS
For use in laboratories needing to split small samples.
MACSALAB Micro Splitter comprises a 500ml hopper, vibratory feeder
tray and 8-way or 16-way rotary Aluminium sample cutter using thick
wall glass tubes, 50ml capacity.
The Mild Steel base of the unit is powder coated.
Feed rate and rotational speed are both adjustable to suit the product being sampled
MACSALAB JONES RIFFLERS (SAMPLE SPLITTERS)
The MACSALAB ranges of low cost manual Rifflers (Jones Type) are easy to operate and
designed for use in general laboratory work for bulk material.
Rifflers are constructed from Mild Steel and are supplied with a stand and 3 collection
bins as standard.
Select unit with slot width at least 3 times maximum particle size.
Variations are also made to order and include special materials like Stainless Steel and multiple
stack units.

11. DAVIS TUBE TESTERS
Davis Tube Tester Model EDT is an indispensable laboratory unit for determining the ferromagnetic and nonmagnetic fractions of
small samples of crushed magnetic iron ore, magnetite, pyrrhotite, etc.
It’s helpful in determining mesh of liberation, selectivity index, grade and recovery of ferromagnetic compounds. In operating
plants, it serves as a control device by determining plant concentrate and tailing quality
Field intensity of 4000 gauss in center of the gap guarantees superior performance and consistent results. Variable speed of
oscillation from one to 90 cycles per minute and adjustable angle of operation from horizontal to 45° provide flexibility to suit
established laboratory procedures and personal preference. Tube rotation of 120° and stroke of 2 inches (51mm) are fixed
standards.