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Our very own Lloyd Williams in Recycling Today’s Global Edition Magazine...

Our very own Lloyd Williams in Recycling Today’s Global Edition Magazine...

Shred Intelligence. Shredall’s Lloyd Williams discusses the particulars of baling shredded paper and choosing a baler to allow for growth.

Shredall Ltd, based in Nottingham, U.K., is one of the country’s largest privately owned document storage and destruction firms. The company was established in 1997 by Lloyd Williams, managing director, and specialises in confidential on-site and off-site shredding, IT, media and product destruction and office recycling services.

In 2005, Williams expanded into the document storage sector with the launch of sister company SDS, which offers business records storage and management, off-site media backup, deed storage, vault storage and document scanning in state-of-the-art archive facilities across the U.K.

Today, Shredall serves its 5,000 U.K. clients with a staff of 44 employees and realises annual sales of more than £2.5 million. The company has three locations: a mobile shredding business in Scotland, a sales office in London and the headquarters facility in Nottingham, which also offers both on-site and off-site shredding and is the site of the company’s records storage, stationary shredding and baling, vaulting and paper recycling operations. Shredall SDS Group works to offer a comprehensive suite of services for the confidential management of records and information.

When it comes to paper recycling, the company processes around 4,000 tonnes of fibre per annum, or about 350 tonnes per month, Williams says. Everything, except for cardboard, gets shredded, he adds.

All that shredded paper is baled using one fully automatic, continuously fed single-ram horizontal style baler that Williams purchased about five years ago. It is currently operated for one shift each day.

We recently talked with Williams to find out more about the particulars of baling shredded paper and how companies can choose baling technology that can grow with their organisations.

Recycling Today Global Edition (RTGE): How should a paper recycler baling shredded paper choose a baler that allows for growth?

Lloyd Williams (LW): You always buy a machine that’s bigger than you need at the time, and you anticipate where you are going to be two or three years down the line to meet the capacity requirement on it. Most people, when ordering a baler, would request a baler to cope with expected growth, or the doubling of shifts to add capacity. For example, when we purchased our baler, we might have been doing around half the volume that we are doing now. We anticipated that we would grow into the volume capacity that it’s got to offer. Our baler could even cope with double our current output simply by increasing the working day. In some cases, all you’ve got to do is add more labour.

RTGE: Are certain types or styles of balers more suitable for baling shredded paper?

LW: No, although the industry norm is to use balers that are vertically fed. We use a fully automatic horizontal style baler for shredded paper that is fed vertically, and we also have a vertical-style baler—which could be used for shredded paper—but we are using that for waste reduction of cardboard. Bales produced from a vertical style baler usually must be hand-wired.

RTGE: Are there any other advantages to using an automatic tie, horizontal style baler?

LW: You may get higher compression force and a more consistent bale weight with the automatic, horizontal style balers.

RTGE: What style of baler can help exporters maximize the density of their bales?

LW: Most European mills prefer 500 kilogram or 1,000 kilogram (1 tonne) bales.

RTGE: Are there any guidelines with regard to compression force when baling shredded paper?

LW: Our baler is manufactured to cope with different pressures required for, say, paper, as compared to cardboard or aluminium cans. The machine is geared up to alter the different pressures for different materials. It’s not really an issue for us because we are using it for that one standard.

RTGE: Are most of your bales sold domestically or for export, and does that affect the size of the bale you produce?

LW: Most bales we produce are sold in our home market. We do send some abroad, but it depends on the value of the pound against the euro at the time. The bale size for either doesn’t make a difference; all the bales we produce are the same size.

RTGE: I understand your previous baler was a semi-automatic model and bales had to be hand-wired. Are those types of machines still appropriate for some paper recycling companies depending on their volume?

LW: Yes, although when you’re hand-wiring, it slows the operation down. Say if we were doing less than 1,000 tonnes a year, you could hand-wire the bales. The breakpoint might be somewhere around a load and a half a month or so.

RTGE: How do you know if the weight of your bales is at an ideal level?

LW: We do occasionally weigh the bales using a pallet scale. However, we know and expect that our bales weigh approximately 400 kilograms.

The mills generally have a minimum requirement of 22.5 tonnes per load, so we load up to 25 tonnes on average, which normally works out to about 60 bales.

There are some recycling operations, however, that may make larger bales weighing around 1 tonne, or 1,000 kilograms, each.

RTGE: What other considerations played a role when you selected your current baler?

LW: We selected the system we use because the manufacturer’s yard is located one-half hour away from me, so if I get a breakdown, one of their engineers can readily travel here.

We also have our baler on a maintenance contract with the manufacturer, so they come in on a predetermined schedule to keep it up to speed.

RTGE: In your experience, how often do balers tend to go out of service and what are some of the typical reasons for breakdowns?

LW: Balers don’t break down very often, maybe once or twice a year, and it’s usually not due to a true mechanical problem. In most cases, the outage has to do with the PLC (programmable logic controller) of the machine, so it’s often an electrical fault as opposed to a mechanical breakdown. For example, if the machine is making a short bale, you can call an engineer in and in most cases they will reset the PLC, which would then reconfigure all the settings on the machine, and that often takes care of the issue.

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