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Sack Handling


Delivering promises with Pacepacker


Pacepacker palletiser helps


Stonepack uphold next day delivery pledge


The dual stacking Blu-Robot: Once one pallet is filled on the left it moves to the right so there is no downtime A


pre-owned dual-stacking palletising robot from Pacepacker Services is enabling the fast-growing


supplier of aggregates and renders Stonepack to keep its next day delivery promise to customers.


In March 2013, Stonepack, one of Scotland’s largest dedicated suppliers of aggregates and renders to the construction and landscaping trade, opened a new site in Broxburn, near Edinburgh. The rationale behind this move was that it would give the firm a presence in the central belt of Scotland, allowing it to expand southwards. “When we first opened in 2006 competitor lead times was running to a week. From day one, we pledged to offer next day delivery if


36 September 2014 Solids and Bulk Handling


customers placed their orders by midday, and to stick to this, we needed good automation capacity. At the same time, we wanted to ensure that the quality and presentation of our products was in no way compromised by the speed at which we were completing orders,” explains Hayden Thomas, managing director of Stonepack.


With a Pacepacker sack packing and palletising line already performing well at its site further north in Forfar, Angus, Stonepack turned to the Essex-based automation specialist for this project. Stonepack’s requirement was for a heavy duty robot to palletise 25kg plastic sacks at speeds of 12 sacks per minute. The contents of the sacks range from decorative stone to dry dash chips, gravel and sand.


www.solidsandbulk.co.uk


To minimise its capital investment, Stonepack opted for a pre-owned Blu-Robot costing approximately £30,000 less than a brand new robot. The reconditioned FANUC arms are supplied to packaging users pre- programmed and complete with end-of-arm tooling, controls and a 12-month warranty with service and spares back-up. Whilst the standard Blu-Robot is capable of palletising 8 to 10 bags per minute, the dual stacking robot at Stonepack can palletise 12, enabling the company to achieve its target output of 2,500 sacks per day. “We wanted a dual stacking configuration so that as soon as the robot has finished palletising a stack, it starts to palletise on the other pallet in the cell,” explains Hayden. “This is an extremely time-efficient configuration as


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