
Grinders and grinding machines are used in the manufacture of medical
devices, ceramics, glass, plastics, composites, semiconductors and
electronics. They are also used in cleaning and surface preparation,
deburring and deflashing, tool and die sharpening, construction,
maintenance and repair (MRO) operations. Very rigid machines make better
use of abrasives in precision grinding applications.
Plastic Grinding Machines come in varying capacities and can perform
job on sizes as small as a few pounds up to truckloads. Good plastic
grinding machines have the power to break down large sheets and can
pre-process tough materials. Using plastic grinders helps in reclaiming
and reprocessing excess plastic material, you save money, time, capital
and landfill space.
These grinding machines come in various designs, capacities and
features. A few of the popular type of Grinding equipment are:
- Granulators
- Hammer mills
- Attrition Mill
- Cryogenic Attrition Mill
- Roll Mills
A look at the popular plastics used in grinding machines:
- Acrylic
- Polystyrene
- Polyester
- Melamine
- Polypropylene
- Nylon
Grinders and grinding machines use an abrasive that is bonded to a
wheel, belt or disc to remove material and improve surface finish.
Devices can be pneumatically driven or powered by a combustion engine or
electric motor.
Grinders and grinding machines can use single-phase or three-phase
power and are available in a range of voltages fro instance, 60 Hz power
is used in North America and 50 Hz power is used internationally.
While some devices require manual loading, setup and operation, others
load parts automatically, include computer numerical control (CNC)
machine tools and a programmable logic controller (PLC), or can be
programmed or controlled through a personal computer (PC) interface.
Some variations of plastic grinding machines are :
- Bench mounted grinding machines
- Floor mounted grinding machines
- Stationary grinding machines
- Handheld grinding machines
- Portable grinding machines
Important specifications for grinders and grinding machines
include :
- Rotary speed
- Surface or linear speed
- Power
- Current