16 VALMET 3
INDUSTRY NEWS
by a double-tier dryer section. OptiSizer features an innovative TurnFloat device that allows the web to proceed to the dryer in a contact-free way. OptiSizer attracted praise from the mill management for its efficiency. Chretien says that it is very effective at applying starch across the mill’s wide range of grades. The mill is now achieving high starch efficiencies that meet, or even exceed, customer expectations thanks to the sizer and starch conversion system. A state-of-the-art OptiWin
Pro winder that features short set change times and robust operation at high speeds completes the line. The mill personnel are impressed with the 3,000 m/min design speed of this advanced winder. “It’s one of the world’s fastest winders,” says Tero Ylikoski. Meanwhile, Chretien is pleased with the innovative splicer. “The butt-joint splicer significantly improves winder uptime and the reduction in broke has easily paid for the additional technology on the winder,” he says. Chretien also praises the uniform, consistent quality of the rolls leaving the winder. He believes it was an excellent purchase.
Uniform quality and wide basis weight range B9 is now turning out testliner and corrugated medium in a wide range of grades between 100 g/ m2
and 170 g/m2 . It can make
an even wider range of basis weights of between 80 g/m2 200 g/m2, says Chretien.
and
Orora is presently carrying out trials of light (90-95 g/m2 heavy (up to 200 g/m2
) and ) weights
on B9. The mill is working towards producing lower weights without compromising strength properties. “Eventually you
January/February 2015
What is Orora? A diverse packaging manufacturer, Orora was created in 2013 from a demerger by Melbourne-based Amcor, with products including corrugated boxes, folding cartons, recycled paper linerboard, glass bottles and jars, multiwall paper sacks, closures, aluminium beverage cans, bulk bags, packaging design & testing services and recycling services. Sales in 2014 were A$3,176m (US$2,587m), of which 60 per cent is generated in Australia and the remainder from North America, where it distributes packaging, janitorial products and promotional items as well as manufacturing and distributing corrugated cardboard.
can go to lower basis weights,” says Ylikoski. Another goal is to produce grades that offer properties comparable to those made from virgin fibre. “We are looking into producing higher basis weight grades that can replace kraftliner,” he points out. Corrugating and downstream
box plant customers are impressed with the quality of the grades made on B9. Customer support manager Cathy Parra says that customers describe board produced on B9 as having more uniform strength, better CD profile, and better print definition than grades made on Botany’s retired machines. “They tell us that quality is much more uniform than liner and medium produced on the older machines,” adds Ylikoski.
Maintenance outsourcing agreement Valmet also signed a multi-year maintenance agreement in July 2011 in which Valmet takes full responsibility for maintenance, the management of improvement projects for B9, and the mill utilities. The Valmet team has adopted a reliability-centred maintenance approach to ensure efficiency and cost optimisation. The outsourcing deal was not unusual for the Botany mill, which has a long history of outsourcing maintenance and engineering activities with other vendors. Valmet provided a comprehensive
Pulp Paper & Logistics
Karl Achleitner, general manager of operations at Orora: “We chose Valmet for maintenance outsourcing because of its intricate knowledge as original equipment supplier”
strategy for the maintenance of the site and demonstrated its maintenance success at other mills through reference visits. Jacob Chretien also sees the value of vendor-supplied maintenance. “We have Valmet people working on Valmet equipment,” he says. Karl Achleitner also sees
value in vendor-delivered maintenance. “We chose Valmet for maintenance outsourcing because of its intricate knowledge as original equipment supplier,” he says. Valmet’s maintenance staff are “absolute specialists”, Achleitner adds, in such key areas as hydraulics. Having Valmet maintenance experts on hand makes the Botany mill the “the envy of the paper industry”, according to Achleitner. Part of the Valmet maintenance concept for B9 is operator maintenance.
Valmet provides training for operators in order to enable them to perform selected preventive maintenance tasks during their shifts.
Apart from its original equipment manufacturer and maintenance role, Valmet also supplies a large proportion of the mill’s consumables. This includes doctor blades, screen baskets and sizer rods.
A bright future Manufacturing in Australia is going through challenging times in an era of globalisation and intense international competition. But Orora is defying the gloom through its investment in global- scale production and cutting- edge technology, backed by its technology and maintenance services partner Valmet.
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