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Schenker's Box Handling Processes for Dell Computers at a Cross-Docking Centre in Copenhagen.

Persson, Henrik and Persson, Håkan (2002)
Packaging Logistics
Abstract
The 17th September 2001 the distributor Schenker started to cooperate with the computer

systems manufacturer Dell to deliver Dell's products to the Nordic market. In the beginning

of a new cooperation new processes are formed and they are often developed to solve the

local, immediate problems without considering the overall picture.

In the distribution network from Dell's plants in Ireland and Holland to the Nordic customers,

the cross-docking centre in Copenhagen is a central part as a hub in the network. Almost all

boxes are distributed through this hub in order to be sorted to one of the nine split point

destinations located in Norway, Denmark, Sweden or Finland.

In order to improve the packet hand ling and the effectiveness at... (More)
The 17th September 2001 the distributor Schenker started to cooperate with the computer

systems manufacturer Dell to deliver Dell's products to the Nordic market. In the beginning

of a new cooperation new processes are formed and they are often developed to solve the

local, immediate problems without considering the overall picture.

In the distribution network from Dell's plants in Ireland and Holland to the Nordic customers,

the cross-docking centre in Copenhagen is a central part as a hub in the network. Almost all

boxes are distributed through this hub in order to be sorted to one of the nine split point

destinations located in Norway, Denmark, Sweden or Finland.

In order to improve the packet hand ling and the effectiveness at the cross docking centre in

Copenhagen different scenarios have been developed with the simulation tool AutoMod1

within the boundaries of this master thesis. On the basis of the simulation models various

changes and how they affect the flow have been studied in order to find a packet handling that

improves the effectiveness at the cross-docking centre.

Eight different models have been studied. One original model that shows how the material

flow is working today, three basic models that include one alteration each in comparison to

the original model and four models that include all possible combinations of the basic models.

Today the cross-docking process is divided in three sub processes, one for each of the box

sizes; small, medium and large. Only the medium sized boxes can use the sorting conveyor

while the small and large boxes are scanned, sorted and transported manually. The basic

models are:

Ø The Värnamo model, which, via an extra conveyor, enables a faster cross-docking of

the boxes that are going to the split-point in Värnamo, Sweden.

Ø The Single Process model, where all boxes are sorted by the conveyor.

Ø The RFID2 model, where all scanning of the boxes is made automatically.

The flow of Dell's computers from Ireland to the Nordic market has been studied but only the

cross-docking centre in Copenhagen has been modelled in Automod. That means that the

manufacturing sites and the transport ways have not been included in the model. The different

models? cross-docking time and need of resources have been compared, but no thorough

comparisons between the costs of the different packet handling strategies have been made.

The Original model is somewhat optimized to the basic conditions that are equal for all the

models. Therefore the original model handles the competition from the other models well in

terms of cross-docking time. On the other hand several of the new models require less

resources and by that holds potential to enhance their performance.

In a short-term point of vie w it is realistic to implement the Single Process model if it is

possible to increase the velocity of the conveyor and do a complete identification of the new

bottlenecks that will arise. The model uses four resources less tha n the original model but

gives a longer cross-docking time due to that only one truck is unloaded at a time. A great

advantage by loading all boxes on the conveyor is that the cross-docking process is equal for

all box sizes.

1 See Section 3.1.2 for a presentation of the software Automod

2 Radio Frequency Identification.

The RFID model has the best performance of all simulation models and uses five resources

less than the original model. Today the technology for RFID is too expensive and the

performance is not good enough, but when the day comes that the price and performance on

RFID is at a realistic level, the organisation and the technologies should be prepared for the

RFID technology.

In a long-term point of view the RFID-Single Process combination is the future for the crossdocking

centre. One process for all box sizes and automatic radio frequency scanning ensures

that the human errors will decrease dramatically. The potential in increasing the velocity on

the conveyor and reducing the cross-docking time even more seems to be good.

The Värnamo model uses one more resource and has the same cross-docking time as the

Original model. All combinations involving the Värnamo concept can therefore be discarded.

The adding of an extra conveyor cost money and does not result in higher capacity. (Less)
Please use this url to cite or link to this publication:
author
Persson, Henrik and Persson, Håkan
supervisor
organization
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Box Handling, Distribution, Simulation, Technological sciences, Teknik
language
English
id
1318810
date added to LUP
2008-06-03 00:00:00
date last changed
2010-02-01 14:40:04
@misc{1318810,
  abstract     = {{The 17th September 2001 the distributor Schenker started to cooperate with the computer

systems manufacturer Dell to deliver Dell's products to the Nordic market. In the beginning

of a new cooperation new processes are formed and they are often developed to solve the

local, immediate problems without considering the overall picture.

In the distribution network from Dell's plants in Ireland and Holland to the Nordic customers,

the cross-docking centre in Copenhagen is a central part as a hub in the network. Almost all

boxes are distributed through this hub in order to be sorted to one of the nine split point

destinations located in Norway, Denmark, Sweden or Finland.

In order to improve the packet hand ling and the effectiveness at the cross docking centre in

Copenhagen different scenarios have been developed with the simulation tool AutoMod1

within the boundaries of this master thesis. On the basis of the simulation models various

changes and how they affect the flow have been studied in order to find a packet handling that

improves the effectiveness at the cross-docking centre.

Eight different models have been studied. One original model that shows how the material

flow is working today, three basic models that include one alteration each in comparison to

the original model and four models that include all possible combinations of the basic models.

Today the cross-docking process is divided in three sub processes, one for each of the box

sizes; small, medium and large. Only the medium sized boxes can use the sorting conveyor

while the small and large boxes are scanned, sorted and transported manually. The basic

models are:

Ø The Värnamo model, which, via an extra conveyor, enables a faster cross-docking of

the boxes that are going to the split-point in Värnamo, Sweden.

Ø The Single Process model, where all boxes are sorted by the conveyor.

Ø The RFID2 model, where all scanning of the boxes is made automatically.

The flow of Dell's computers from Ireland to the Nordic market has been studied but only the

cross-docking centre in Copenhagen has been modelled in Automod. That means that the

manufacturing sites and the transport ways have not been included in the model. The different

models? cross-docking time and need of resources have been compared, but no thorough

comparisons between the costs of the different packet handling strategies have been made.

The Original model is somewhat optimized to the basic conditions that are equal for all the

models. Therefore the original model handles the competition from the other models well in

terms of cross-docking time. On the other hand several of the new models require less

resources and by that holds potential to enhance their performance.

In a short-term point of vie w it is realistic to implement the Single Process model if it is

possible to increase the velocity of the conveyor and do a complete identification of the new

bottlenecks that will arise. The model uses four resources less tha n the original model but

gives a longer cross-docking time due to that only one truck is unloaded at a time. A great

advantage by loading all boxes on the conveyor is that the cross-docking process is equal for

all box sizes.

1 See Section 3.1.2 for a presentation of the software Automod

2 Radio Frequency Identification.

The RFID model has the best performance of all simulation models and uses five resources

less than the original model. Today the technology for RFID is too expensive and the

performance is not good enough, but when the day comes that the price and performance on

RFID is at a realistic level, the organisation and the technologies should be prepared for the

RFID technology.

In a long-term point of view the RFID-Single Process combination is the future for the crossdocking

centre. One process for all box sizes and automatic radio frequency scanning ensures

that the human errors will decrease dramatically. The potential in increasing the velocity on

the conveyor and reducing the cross-docking time even more seems to be good.

The Värnamo model uses one more resource and has the same cross-docking time as the

Original model. All combinations involving the Värnamo concept can therefore be discarded.

The adding of an extra conveyor cost money and does not result in higher capacity.}},
  author       = {{Persson, Henrik and Persson, Håkan}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Schenker's Box Handling Processes for Dell Computers at a Cross-Docking Centre in Copenhagen.}},
  year         = {{2002}},
}