Graphical Construction Glossary >> Tools. >> Power Tools >> Wacker Packer

Wacker Packer
An engine driven plate compactor for use in the compaction of back fill in trenches and other narrow excavations.

a small plate compactor.
Photo taken with permission of Coates Hire..

A petrol engine powered plate compactor. These tools are fairly easy to use and in small restricted areas they do a mighty job.

  • Normal safety procedures should be carried out with regard to protective clothing but in particular safety steel toe cap boots should be worn.
  • Never refuel any engine that is hot. Wait for them to cool down.
  • Never start any plate compactor on concrete, in particular this type can really jump high and get out of control. Always have it on earth or sand or gravel to start it.
  • Start on idle and holding the thing firmly gradually increase the revs. It should start bouncing up and down say about 75mm to 150mm, 3" to 6"
  • If it starts taking bigger jumps shut down the throttle straight away.
  • With a nice rhythm going the packer will want to slowly move forward when held vertical and by tilting the machine the speed and direction of travel can be altered.
  • As with all compaction machines the material being compacted must have the right moisture content.
  • If it is too dry the the packer will just create dust but do no real work.
  • If the fill material is too wet then the compactor will get bogged.
  • As a rough guide, grab a hand full of the back fill material and squeeze it.
  • When you open your hand it should all hold together and clearly show the imprints of your palm and fingers.
  • Ideally the back fill should be placed and compacted in no more that 150mm 6" layers.
Doing what it does best, a wacker compacting a trench
Doing what it does best, a wacker packer compacting a trench
Photo thanks to Wikimedia Commons, User: Nueson

If you didn't find exactly what you are looking for try this search tool that will search the site and the web.

"What can be added to the happiness of a man who is in health, out of debt, and has a clear conscience?
Adam Smith 1723-1790

"When we build, let us think that we build for ever."John Ruskin 1819-1900

coates hire
Hire Equipment
Furniture Fittings - Architectural Hardware - Electronic Locking Systems - Technical Hardware
BuilderBill sponsorship

BuilderBill Books

building maths
Building Maths

Stair Design
asbestos ebook
Asbestos Book

Calculator Pages.

Concrete yardage calculator

Reader's Questions.

Questions and answers.



Please Note! The information on this site is offered as a guide only!  When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area.  It could be out of date!  Regulations breed faster than rabbits!
You must check your own local conditions.
Copyright © Bill Bradley 2007-2012. All rights reserved.
Page copy protected against web site content infringement by Copyscape